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Showing papers on "Rice bran oil published in 2010"


Journal ArticleDOI
TL;DR: The characteristics of novel A. baylyi lipase, as high temperature stability, organic solvent tolerance, and transesterification capacity from palm oil to FAMEs, indicate that it could be a vigorous biocatalyzer in the prospective fields as bioenergy industry or even in organic synthesis and pharmaceutical industry.
Abstract: The benzene tolerant Acinetobacter baylyi isolated from marine sludge in Angsila, Thailand could constitutively secrete lipolytic enzymes. The enzyme was successfully purified 21.89-fold to homogeneity by ammonium sulfate precipitation and gel-permeable column chromatography with a relative molecular mass as 30 kDa. The enzyme expressed maximum activity at 60°C and pH 8.0 with p-nitrophenyl palmitate as a substrate and found to be stable in pH and temperature ranging from 6.0-9.0 to 60-80°C, respectively. A study on solvent stability revealed that the enzyme was highly resisted to many organic solvents especially benzene and isoamyl alcohol, but 40% inhibited by decane, hexane, acetonitrile, and short-chain alcohols. Lipase activity was completely inhibited in the presence of Fe2+, Mn2+, EDTA, SDS, and Triton X-100 while it was suffered detrimentally by Tween 80. The activity was enhanced by phenylmethylsulfonyl fluoride (PMSF), Na+, and Mg2+ and no significant effect was found in the presence of Ca2+ and Li+. Half of an activity was retained by Ba2+, Ag+, Hg+, Ni2+, Zn2+, and DTT. The enzyme could hydrolyze a wide range of p-nitrophenyl esters, but preferentially medium length acyl chains (C8-C12). Among natural oils and fats, the enzyme 11-folds favorably catalyzed the hydrolysis of rice bran oil, corn oil, sesame oil, and coconut oil in comparison to palm oil. Moreover, the transesterification activity of palm oil to fatty acid methyl esters (FAMEs) revealed 31.64 ± 1.58% after 48 h. The characteristics of novel A. baylyi lipase, as high temperature stability, organic solvent tolerance, and transesterification capacity from palm oil to FAMEs, indicate that it could be a vigorous biocatalyzer in the prospective fields as bioenergy industry or even in organic synthesis and pharmaceutical industry.

68 citations


Journal ArticleDOI
TL;DR: The result suggested that the interesterified fat without trans fatty acid could be used as an alternative to partially hydrogenated fat and showed desirable physical properties and suitable crystal form (beta' polymorph) for possible use as a spreadable margarine stock.
Abstract: BACKGROUND:Trans-free interesterified fat was produced for possible usage as a spreadable margarine stock. Rice bran oil, palm stearin and coconut oil were used as substrates for lipase-catalyzed reaction. RESULTS: After interesterification, 137–150 g kg−1 medium-chain fatty acid was incorporated into the triacylglycerol (TAG) of the interesterified fats. Solid fat contents at 25 °C were 15.5–34.2%, and slip melting point ranged from 27.5 to 34.3 °C. POP and PPP (β-tending TAG) in palm stearin decreased after interesterification. X-ray diffraction analysis demonstrated that the interesterified fats contained mostly β′ polymorphic forms, which is a desirable property for margarines. CONCLUSIONS: The interesterified fats showed desirable physical properties and suitable crystal form (β′ polymorph) for possible use as a spreadable margarine stock. Therefore, our result suggested that the interesterified fat without trans fatty acid could be used as an alternative to partially hydrogenated fat. Copyright © 2010 Society of Chemical Industry

66 citations


Journal ArticleDOI
TL;DR: In this article, the authors investigated the recovery of γ-oryzanol from the residue of rice bran oil soapstock using supercritical fluid extraction (SFE) The Soxhlet technique was conducted in order to compare results with SFE.
Abstract: The residue of fatty acids distillation from rice bran oil soapstock (RFAD-RBOS) is a byproduct from rice bran oil industry It contains a large amount of γ-oryzanol, which is a valuable antioxidant The main objective of this work was to investigate the recovery of γ-oryzanol from the RFAD-RBOS using supercritical fluid extraction (SFE) The Soxhlet technique was conducted in order to compare results with SFE The influence of process parameters over SFE was evaluated in terms of global yield, γ-oryzanol content, γ-oryzanol recovery rate, and fatty acids composition The mathematical modeling of SFE overall extraction curve (OEC) was also investigated The condition of 30 MPa/303 K presented the maximum global yield (39 ± 1%, w/w), maximum γ-oryzanol recovery rate (313%, w/w), relatively high γ-oryzanol content (32%, w/w), and significant presence of monounsaturated and polyunsaturated fatty acids The logistic model presented the best fit to experimental OEC

50 citations


Journal ArticleDOI
TL;DR: In this paper, the influence of process variables, solvent hydration and temperature was evaluated using the response surface methodology, aiming to maximise the soluble substances and γ-oryzanol transfer and minimise the free fatty acids extraction and the liquid content in the underflow solid.
Abstract: Summary Vegetable oils can be extracted using ethanol as solvent. The main goal of this work was to evaluate the ethanol performance on the extraction process of rice bran oil. The influence of process variables, solvent hydration and temperature was evaluated using the response surface methodology, aiming to maximise the soluble substances and γ-oryzanol transfer and minimise the free fatty acids extraction and the liquid content in the underflow solid. It can be noted that oil solubility in ethanol was highly affected by the water content. The free fatty acids extraction is improved by increasing the moisture content in the solvent. Regarding the γ-oryzanol, it can be observed that its extraction is affected by temperature when low level of water is added to ethanol. On the other hand, the influence of temperature is minimised with high levels of water in the ethanol.

47 citations


Journal Article
TL;DR: In this article, the performance and exhaust emission characteristics of a direct injection (DI) diesel engine when fuelled with conventional diesel fuel, rice bran oil biodiesel, a blend of diesel and rice BRO biodiesel and three blends of diesel-biodiesel-ethanol over the entire range of load on the engine were investigated.
Abstract: A number of studies currently focus on the renewable fuels to reduce the reliance on petroleum fuels. Biofuels such as biodiesel and bioethanol have been studied and tested in many countries including India. One of the methods to reduce the use of fossil fuel is blending ethanol with fossil diesel. However, an emulsifier or a co-solvent is needed to homogenize the diesel-ethanol blends. The rice bran oil biodiesel offers an alternative application as an emulsifier for diesel and ethanol blends. The present research is aimed to investigate experimentally the performance and exhaust emission characteristics of a direct injection (DI) diesel engine when fuelled with conventional diesel fuel, rice bran oil biodiesel, a blend of diesel and rice bran oil biodiesel and three blends of diesel-biodiesel-ethanol over the entire range of load on the engine. The experimental results showed that the highest brake thermal efficiency was observed with 15% ethanol in diesel-biodiesel-ethanol blends. The exhaust gas temperature and the sound intensity from the engine reduced with the increase of ethanol percentage in diesel-biodiesel-ethanol blends. The Carbon monoxide and smoke emissions reduced significantly with higher percentage of ethanol in diesel-biodiesel-ethanol blends. The unused oxygen with 5% ethanol in diesel-biodiesel-ethanol blend was lower than that of diesel fuel. The Hydrocarbons, Oxides of nitrogen and carbon dioxide emissions increased with the increase of ethanol percentage in diesel-biodiesel-ethanol blends but the hydrocarbon emissions were still lower than that of diesel fuel. As the brake thermal efficiency increased and carbon monoxide, sound, hydrocarbons and smoke were lower than that of diesel fuel with the diesel-biodiesel-ethanol blends, the rice bran oil biodiesel can be used as an additive to mix higher percentages of ethanol in diesel-ethanol blends to improve the performance and reduce the emissions of a diesel engine.

45 citations


Journal ArticleDOI
TL;DR: The authors examined the chemical composition of corn oil obtained after fermentation of corn to make fuel ethanol via centrifugation and compare its composition to that of corn germ oil (commercial corn oil) and experimental corn oils.
Abstract: A study was conducted to examine the chemical composition of corn oil obtained after fermentation of corn to make fuel ethanol via centrifugation and compare its composition to that of corn germ oil (commercial corn oil) and experimental corn oils. The levels of free fatty acids in the post fermentation corn oil were high (11-16%), as previously reported. The levels of free phytosterols and hydroxycinnamate steryl esters (similar to oryzanol in rice bran oil) were higher than those of corn germ oil and were comparable to those of ethanol-extracted corn kernel oil. The levels of tocopherols were lower in post-fermentation oil than in either corn germ oil or ethanol extracted corn kernel oil. The levels of lutein and zeaxanthin in post-fermentation were much higher than those in corn germ oil and were comparable to those in ethanol-extracted corn kernel oil. Overall, exposure to all upstream processes of a fuel ethanol plant, including high-temperature liquefaction, saccharification and fermentation appeared to have the most notable effect on tocopherols, but it had little effect on the levels of free phytosterols, hydroxycinnamate steryl esters, lutein and zeaxanthin. It may be desirable to recover these valuable functional lipids prior to using the post-fermentation corn oil for industrial applications such as making biodiesel if a cost-effective recovery process can be developed.

44 citations


Journal ArticleDOI
TL;DR: In this article, the effects of water content, oil/methanol molar ratio, temperature, enzyme amount, solvent, number of methanol added times and two-step methanolysis by using Candida sp. 99-125 as catalyst were investigated.

40 citations


Journal ArticleDOI
TL;DR: In this paper, a continuous production process of biodiesel fuel, fatty acid esters from oils with high content of free fatty acid (FFA), was constructed using the heterogeneous ion-exchange resin catalysts.
Abstract: A simple continuous production process of biodiesel fuel, fatty acid esters from oils with high content of free fatty acid (FFA), was constructed using the heterogeneous ion-exchange resin catalysts. In the system, the expanded-bed reactor packed with the cation-exchange resin catalyst for esterification of the FFA and that with the anion-exchange resin catalyst for transesterification of the triglyceride were connected in series. When the mixed solution of the crude rice bran oil with a 14 wt % FFA and alcohol was supplied to the proposed system, the fatty acid esters with a high conversion of more than 98.6% could be continuously produced without any extra operation such as dewaxing/degumming of the raw oil, removal of the byproduct, and addition of alcohol.

40 citations


Journal ArticleDOI
TL;DR: In this paper, the antioxidant activity of mulberry leaves was evaluated in rice bran oil (RBO) and showed that both mulberry extract and powder were effective in inhibiting lipid oxidation when compared to synthetic antioxidant BHT.
Abstract: The antioxidant activity of mulberry (Morus Indica L.) leaves was evaluated in rice bran oil (RBO). The oil was subjected to accelerated oxidation at 100° C for 5 days and heat treatment at 180°C for 1 h. In order to examine its potential antioxidant activity, the oxidative stability of the oils was evaluated by employing peroxide value (PV), radical scavenging activity (RSA), thiobarbituric acid reactive substances assay (TBARS), and percent free fatty acids (FFA). Mulberry in two forms viz: the methanolic extract and powder were applied to RBO at 200 ppm and 0.05%, respectively, and results were compared with RBO treated with a synthetic antioxidant-BHT. The PV, RSA, TBARS, and FFA values indicated that both mulberry extract and powder were effective in inhibiting lipid oxidation when compared to synthetic antioxidant BHT. Thus, mulberry leaves may serve as a new source of natural antioxidant for use in food systems.

38 citations


Journal ArticleDOI
TL;DR: It is considered that the present fractionation method combined with SFC and solvent fractionation is an effective means of concentrating squalene and phytosterols.
Abstract: Since deodorization distillate, a by-product of rice bran oil production, contains squalene (ca. 8%) and phytosterols (ca. 4%) as unsaponifiable components, the concentration of those materials for their use in the cosmetics and food industries is desirable. In the present work, a novel fractionation method of concentrating squalene and phytosterols from deodorization distillate or the unsaponifiable components of the deodorization distillate without oxidative deterioration was examined. Supercritical fluid extraction (SFE) with supercritical carbon dioxide was investigated under the following conditions: temperature, 30°C; pressure, 100 kg/cm2; flow rate of carbon dioxide, 7 mL/min. Under these conditions, squalene was effectively concentrated to 25% with nearly quantitative recovery, and then a more highly concentrated squalene (ca. 50% purity) was obtained by using a supercritical fluid chromatography (SFC) with silica gel packed into the extraction vessel. In addition, squalene with ca. 68% purity could be obtained by repeating the SFC twice. After the saponification of the deodorization distillate, followed by solvent fractionation with hexane, highly purified phytosterols (97% purity) could be obtained, and highly purified squalene (81% and 100% purity) could be also obtained by using SFC combined with the solvent fractionation technique for the unsaponifiable materials. Therefore, it is considered that the present fractionation method combined with SFC and solvent fractionation is an effective means of concentrating squalene and phytosterols.

37 citations


Journal ArticleDOI
TL;DR: In this article, the use of microwaves as a heating medium to drive the transesterification of vegetable oils into ethyl esters was investigated, and the results indicated that microwave heating can be used effectively to obtain high esters of fatty acids (biodiesel) yields at lower alcohol/oil ratios, effectively reducing the reaction time, even under continuous flow reactions due to a reduction in activation energy and an increase in Arrhenius preexponential factor.
Abstract: The use of microwaves as a heating medium to drive the transesterification of vegetable oils into ethyl esters was investigated. A continuous-flow microwave-assisted transesterification of soybean and rice bran oil was carried out in the presence of ethanol, using a molar ratio alcohol/oil of 5:1, and 0.6% w/w of sodium hydroxide as catalyst. The reactions were performed at atmospheric pressure, using a flow rate of 100 mL/min at temperatures of 50 and 73 °C for different reaction times (1, 5, and 10 min). At all tested parameters, the ethyl ester biodiesel produced conformed with ASTM specifications, with conversion rates between 96.7 and 99.3%, indicating a good quality biodiesel. The results indicated that microwave heating can be used effectively to obtain high ethyl esters of fatty acids (biodiesel) yields at lower alcohol/oil ratios, effectively reducing the reaction time, even under continuous-flow reactions due to a reduction in activation energy and an increase in Arrhenius pre-exponential factor...

Journal ArticleDOI
TL;DR: In this article, the liquid−liquid equilibrium data for pseudobinary systems containing vegetable oils (soybean oil, sunflower oil, rice bran oil, cottonseed oil, palm olein, and palm oil) + anhydrous ethanol in the range from (298.15 to 333.15) K were determined experimentally.
Abstract: The two-phase base-catalyzed transesterification of vegetable oils with short chain alcohols is common in the production of biodiesel. The reactants (vegetable oil and ethanol) are partially soluble, and this phase behavior can significantly impact the reaction process. To better understand this phase behavior, the liquid−liquid equilibrium data for pseudobinary systems containing vegetable oils (soybean oil, sunflower oil, rice bran oil, cottonseed oil, palm olein, and palm oil) + anhydrous ethanol in the range from (298.15 to 333.15) K were determined experimentally. The mutual solubility increased as the temperature rose in all the systems examined. The equilibrium data were correlated with the NRTL model using temperature-dependent parameters which represented satisfactorily the experimental results.


Patent
07 Jul 2010
TL;DR: In this article, the authors provide a preparation method and application of a blend oil, which comprises 0.1-5 parts of phytosterol ester, 0.01-5 part of microalgae DHA and 90-99.8 parts of other oil components; the other components are sorted from three or more than three of soybean oil, colza oil, maize oil, sunflower oil, peanut oil, sesame oil, tea seed soil, palm oil, rice bran oil, olive oil, safflower oil, linseed oil,
Abstract: The invention provides a blend oil, a preparation method and application thereof. The blend oil, counted in 100 parts by weight, comprises 0.1-5 parts of phytosterol ester, 0.01-5 parts of microalgae DHA and 90-99.8 parts of other oil components; the other oil components are sorted from three or more than three of soybean oil, colza oil, maize oil, sunflower oil, peanut oil, sesame oil, tea seed soil, palm oil, cottonseed oil, rice bran oil, olive oil, safflower oil, linseed oil, cannabis oil, pig tallow, beef tallow, or microalgae oil.

Journal ArticleDOI
TL;DR: A modified physical refining process was developed, consisting of an acid degumming, prebleaching, dewaxing, physical removal of free fatty acids using packed column technology, a modified washing step, conventional bleaching and deodorization.
Abstract: Crude rice bran oil (RBO) is rich in valuable minor components such as tocotrienols, phytosterols and γ-oryzanol. These compounds are well preserved during physical refining, but in current industrial practice, RBO is mostly refined chemically because this results in a lighter color. However this process removes most of the γ-oryzanol. The challenge is to develop a refining process which combines a high γ-oryzanol retention with the commercially desired light color. A modified physical refining process was developed, consisting of an acid degumming, prebleaching, dewaxing, physical removal of free fatty acids using packed column technology, a modified washing step, conventional bleaching and deodorization. A RBO with acceptable oryzanol retention of 39% had a Lovibond red color value (measured with a 5.25-inch cell) of 2.8, approaching very close the color of a chemically refined RBO (red = 2). At the process step where high (94%) retention of γ-oryzanol was achieved, a somewhat darker Lovibond red value of 5.2 was obtained.

Journal ArticleDOI
TL;DR: In this paper, a Rice bran oil structured lipid (RBOSL) was produced from RBO and medium chain fatty acid (MCFA), caprylic acid, with Lipozyme RM IM as biocatalyst to formulate trans-free shortenings.
Abstract: Rice bran oil structured lipid (RBOSL) was produced from rice bran oil (RBO) and the medium chain fatty acid (MCFA), caprylic acid, with Lipozyme RM IM as biocatalyst. RBOSL and RBO were mixed with palm stearin (PS) in ratios of 30:70, 40:60, 50:50, 60:40 and 70:30 v/v (RBOSL to PS) to formulate trans-free shortenings. Fatty acid profiles, solid fat content (SFC), melting and crystallization curves and crystal morphology were determined. The content of caprylic acid in shortening blends with RBOSL ranged from 9.92 to 22.14 mol%. Shortening blends containing 30:70 and 60:40 RBOSL or RBO and PS had fatty acid profiles similar to a commercial shortening (CS). SFCs for blends were within the desired range for CS of 10-50% at 10-40 °C. Shortening blends containing higher amounts of RBOSL or RBO had melting and crystallization curves similar to CS. All shortening blends contained primarily β′ crystals. RBOSL blended with PS was comparable to RBO in producing shortenings with fatty acid profiles, SFC, melting and crystallization profiles and crystal morphologies that were similar. RBOSL blended with PS can possibly provide healthier alternative to some oils currently blended with PS and commercial shortening to produce trans-free shortening because of the health benefits of the MCFA in RBOSL.

Journal ArticleDOI
TL;DR: In this article, the antioxidant activity against the synthetic 1, 1-diphenyl-2-picrylhydrazyl radical, and β-carotene-linoleic acid assay of the methanolic extracts of defatted rice bran from stabilized and unstabilized rice brans were determined and compared with those of BHA (synthetic antioxidant).
Abstract: The present research assessed the antioxidant activity against the synthetic 1, 1-diphenyl-2-picrylhydrazyl radical, and β-carotene-linoleic acid assay of the methanolic extracts of defatted rice bran from stabilized and unstabilized rice bran. The effects of the extracts (0.1 and 0.25% w/w) on the oxidative stability of refined-bleached rice bran oil were determined and compared with those of BHA (synthetic antioxidant). The study was carried out over a 168 hr period at 70°C and the progression of oxidation was measured by peroxide value, p-anisidine value, and thiobarbituric acid-reactive substances (TBARS). The relative % of residual α-tocopherol and γ-oryzanol of the rice bran oil containing methanolic extracts of stabilized and unstabilized defatted rice bran during storage at 70°C were studied.

01 Jan 2010
TL;DR: In this paper, the antioxidant stability in rice bran oil and palm oil at different times of heating is investigated using the parameters like density, viscosity, adiabatic compressibility and acoustic impedance of the oils at different time of heating.
Abstract: Fats and oils are recognized as essential nutrients in human diets. Nutritionally, they are concentrated source of energy (9 cal/ gram); provide essential fatty acids which are the building blocks for the hormones needed to regulate bodily systems; and are a carrier for the oil soluble vitamins A, D, E and K. Kinematic Viscosity of unheated and heated (270°C) rice bran oil is measured 30o to 90°C. In this paper, the antioxidant stability in palm oil and rice bran oil at different times of heating is investigated using the parameters like density, viscosity, adiabatic compressibility and acoustic impedance of the oils at different times of heating. The antioxidant stability is resolute at every time of heating. Hence, it can be recommended that rice bran oil can be used for frying without adverse effect preventing the incidence of malignancy and coronary heart diseases.

Journal ArticleDOI
TL;DR: The present investigation aimed at finding out the effect of different degumming processes and on the use of some nontraditional alkaline material for refining of rice bran oil on the quality of the RBD oil.
Abstract: The present investigation aimed at finding out the effect of different degumming processes and on the use of some nontraditional alkaline material for refining of rice bran oil. Attempt was made to treat crude rice bran oil with H2O, and H3PO4 for degumming followed by with alum or H2O for dewaxing. After removal of the gums and waxes the oil was neutralized with commonly used NaOH, and some nontraditional neutralizing agents like Na2CO3 and NaHCO3. Finally the oil was bleached traditionally using earth and charcoal and deodorized. The RBD oil was characterized by determining their color, peroxide value, content of unsaponifiable matter, and free fatty acids. Among the different processes tried degumming with 0.2 %, w/w, H3PO4 followed by dewaxing with 2.0 %, w/w, H2O; bleaching with tonsil earth (1.5 %, w/w) and charcoal (0.5 %, w/w) and finally deodorization at 220°C temperature and 2-4 mm Hg pressure resulted best quality oil in terms of the measured parameters. The characteristics of refined rice bran oil could be as content of FFA and UM 0.2 (%, w/w), 2.6 (%, w/w) respectively; color 10.9Y, 2.0R (in 2.54 cm Lovibond Tintometer cell); PV 3.3 (meq/kg). The oil yield is 78-85 % (by weight).

Journal ArticleDOI
TL;DR: In this article, a rice bran oil structured lipid (RBOSL) was synthesized from rice brans oil (RBO) and caprylic acid with Lipozyme RM IM as biocatalyst.
Abstract: A rice bran oil structured lipid (RBOSL) was synthesized from rice bran oil (RBO) and caprylic acid with Lipozyme RM IM as biocatalyst. Sweet potato chips (SPCs) were fried separately in RBOSL and RBO. Energy bars (EBs) were formulated with RBOSL or RBO. Triangle tests (TT) were conducted for SPCs and EBs to determine the panelists' ability to differentiate between SPCs and EBs prepared with RBO or RBOSL. Willingness to purchase (WTP) sensory analysis was also conducted. Fatty acid content, γ-oryzanol, viscosity, free fatty acid (FFA) and p-anisidine values for RBO and RBOSL were determined before and after frying. SPC color and oil uptake were also determined. TT results for SPCs showed no significant difference in SPCs fried in RBO and RBOSL (P > 0.05). TT results for EBs indicated a significant difference between RBO and RBOSL formulations (P ≤ 0.05). WTP (5-point scale) sensory analyses of SPCs and EBs showed that the most frequent response was probably would buy. PRACTICAL APPLICATIONS Consumer panels indicated a willingness to purchase both sweet potato chips and energy bars prepared with rice bran oil structured lipid (RBOSL). Improvements in the standardization and preparation procedures and changes in formulation would probably improve acceptability. These consumer panel results showed that products prepared with structured lipids, with improved nutritional or health-promoting properties, may have viable commercial potential in foods. RBOSL that is liquid at room temperature can potentially be used in frying and baking applications.

Journal ArticleDOI
TL;DR: Results indicated that CNO when blended or interesterified with RBO or SESO exhibit antithrombotic effects as compared to the effect observed by feeding rats with CNO.
Abstract: The present investigation was undertaken to study the effects of feeding a diet containing blended and interesterified fat to rats on thrombotic parameters such as platelet aggregation and eicosanoid levels in blood serum. Male Wistar rats were fed with a diet containing 10% fat from native; coconut oil (CNO), rice bran oil (RBO), sesame oil (SESO), blended; (CNO+RBO blend (B), CNO+SESO(B), or interesterified oils; CNO+RBO interesterified (I), CNO+SESO(I) for a period of 60 days. Rats given a diet containing blended oil of CNO+RBO(B) or CNO+SESO(B) showed a decrease in rate of ADP induced aggregation of platelets by 34% and 30%, respectively, compared to those fed with CNO. Aggregation induced by collagen was also reduced similarly in rats given blended or interesterified oils of CNO with RBO or SESO. Feeding interesterified oil CNO+RBO(I), and CNO+SESO(I) to rats also resulted in decrease in rate of ADP induced platelet aggregation by 37% and 34%, respectively, compared to rats fed with CNO. The prostacyclin/thromboxane ratio in serum was increased in rats fed with blended and interesterified oil compared to those fed with CNO. These results indicated that CNO when blended or interesterified with RBO or SESO exhibit antithrombotic effects as compared to the effect observed by feeding rats with CNO.

Patent
09 Jun 2010
TL;DR: In this article, a nutritional blend oil with balanced fatty acid components and active components for the middle and old aged, which is prepared by a plurality of plant oils selected from flaxseed oil, walnut oil, double-low rapeseed oil, soybean oil, wheat germ oil, corn oil, teal oil, peanut oil, grape seed oil, rice bran oil, camellia oil, evening primrose seed oil and sunflower seed oil.
Abstract: The invention relates to a nutritional blend oil with balanced fatty acid components and active components for the middle and old aged, which is prepared by a plurality of plant oils selected from flaxseed oil, walnut oil, double-low rapeseed oil, soybean oil, wheat germ oil, corn oil, teal oil, peanut oil, grape seed oil, rice bran oil, camellia oil, evening primrose seed oil, sunflower seed oil and the like, wherein, Omega 6 serial polyunsaturated fatty acids (PUFA) and Omega 3 serial PUFA are contained to enable the ratio of saturated fatty acid (SFA) to monounsaturated fatty acid (MUFA) to PUFA to be 0.6-0.8:1:1, the ratio of Omega 6 to Omega 3 to be 4:1 in the comprehensive evaluation of the blend oil absorbed by the middle and old aged and the fat from other sources, thereby meeting the recommended value of Chinese Nutrition Society; the nutritional blend oil contains 2% of gama-linolenic acid, thereby beneficial to improving the contents of DH-gama-linolenic acid and arachidonic acid; the total content of lauric acid, myristic acid and palmitic acid contained in the nutritional blend oil is below 8.5% in order to avoid over rising the level of Low density lipoprotein (LDL) in the plasm of the middle and old aged; in addition, the nutritional blend oil also comprises a plurality of active components with oxidation resistant property, so other antioxidants do not need to be added in the blend oil.The blend oil provided by the invention is characterized by low cost, balanced fatty acid nutrition, a plurality of abundant active components and higher security, thereby better improving the health and intelligence of eaters, preventing cardiovascular and cerebrovascular diseases, and avoiding fatness, hyperlipidemia, thrombotic diseases and the like caused by unbalanced fatty nutrition.

Patent
02 Jun 2010
TL;DR: In this paper, an additive additive agent is also added to the blend oil, and the content of the antioxidant is 0-20 percent of the weight of the edible blend oil.
Abstract: The invention relates to edible vegetable blend oil with balanced fatty acid. Edible vegetable oil being rich in omega-6 and omega-3 polyunsaturated fatty acid is used as a raw material, and nine kinds of vegetable oil comprising refined colza oil, refined soybean oil, pressed peanut oil, refined sunflower seed oil, refined corn oil, perilla herb oil, oil-tea camellia seed oil, rice bran oil and sesame oil are used for forming raw oil. The additions of all kinds of vegetable oil in per 100g of a refined oil product are as follows: 30-60g of refined colza oil, 30-55g of refined soybean oil, 1-30g of pressed peanut oil, 0-10g of refined sunflower seed oil, 0-20g of refined corn oil, 0-5g of perilla herb oil, 0-5g of oil-tea camellia seed oil, 0-5g of rice bran oil and 0-5g of sesame oil. Meanwhile, an antioxidant used as an additive agent is also added to the blend oil, and the content of the antioxidant is 0-20 percent of the weight of the edible blend oil. The invention has the advantages that the proportion of fatty acid is balanced, the proportion of the polyunsaturated fatty acid is reasonable, and the weight ratio of the contents of the omega-6 and the omega-3 in the blend oil is (4-6):1, health-care effect is obtained for the human body; the blending proportion is scientific; and the cost is low.

Journal Article
TL;DR: The substitution of usual cooking oil with a blend of rice bran oil and safflower oil (8:2) was found to exert beneficial effects on the LDL-C levels shifting them to low-risk lipid category.
Abstract: Cardiovascular diseases have emerged as major health burden worldwide in recent times. Low density lipoprotein cholesterol (LDL-C) serves as the primary marker for cardiovascular diseases. Reports suggest that rice bran oil has antihyperlipidaemic properties. However, current evidence suggests that no single oil can provide the recommended dietary fat ratio. Hence the present study was undertaken in patients with hyperlipidaemia to study effects of substitution of the cooking oil with a blend of 80% rice bran oil and 20% safflower oil on LDL-C levels. The selected patients (n = 73) were randomly assigned either to the study oil group (blend under study) or control oil group (the oil which the patient was using before). The lipid profile was monitored monthly in these patients for 3 months during which they consumed the oil as per the randomisation. At each follow up, LDL-C levels showed a significant reduction from baseline in the study oil group and reduction was more than that observed in the control group. It was also observed that the percentage of the respondents was higher in the study oil group. At the end of the study period, 82% patients from this group had LDL levels less than 150 mg% as against 57% in the control group. Thus, the substitution of usual cooking oil with a blend of rice bran oil and safflower oil (8:2) was found to exert beneficial effects on the LDL-C levels shifting them to low-risk lipid category.

Journal ArticleDOI
TL;DR: In this paper, the suitable conditions were determined for the recovery of high-value antioxidative compound, γ-oryzanol, from low cost rice bran soapstock byproduct of the Rice bran oil industry.
Abstract: The suitable conditions were determined for the recovery of high-value antioxidative compound, γ-oryzanol, from low cost rice bran soapstock by-product of the rice bran oil industry First, soapstock was saponified and was then dehydrated and extracted with ethyl acetate The extract was further purified by crystallization twice in appropriate solvent systems At the most suitable conditions, using 20% v/v of ethyl acetate in methanol, and at 30°C and 1 h for the first crystallization step, and 5°C and 24 h for the second, the yield and purity of γ-oryzanol were 5517 ± 059 wt% and 7460 ± 412 wt%, respectively

Patent
12 May 2010
TL;DR: In this paper, a method for refining rice bran oil by using short distance distillation was proposed, which avoids heavy pollution processes of alkali refining and neutralizing chemical process for obtaining soda soap and process discharging waste water of washing.
Abstract: The invention discloses a method for refining rice bran oil by using short distance distillation. The method is implemented by putting crude rice bran oil in a buffer pot directly, transferring into a primary film evaporator by a pump for dehydration and desaeration, performing primary dehydration and desaeration under conditions of temperature being 60-120 DEG C and pressure being negative 0.8MPa to negative 0.95MPa; pumping the dehydrated and desaerated rice bran oil into a secondary short distance evaporator for deacidification with temperature controlled at 100-200 DEG C and pressure at 100-0.1Pa to obtain oleic acid with high acid value and rice bran oil with low acid value. The invention avoids heavy pollution processes of alkali refining and neutralizing chemical process for obtaining soda soap and process discharging waste water of washing when processing rice bran oil, the procedure is simple, high value oleic acid and low acid value rice bran oil can be distilled and separated, and the separation process is a physical process, the rice bran oil has no loss and the yield is very high.

Journal ArticleDOI
TL;DR: In this paper, phase diagrams of two systems, formed by tristearin (1,3-di(octadecanoyloxy)propan-2yl octadecanoate) with refined rice bran oil or refined palm oil, were obtained by Differential Scanning Calorimetry (DSC).
Abstract: In the present study, phase diagrams of two systems, formed by tristearin (1,3-di(octadecanoyloxy)propan-2yl octadecanoate) with refined rice bran oil or refined palm oil, were obtained by Differential Scanning Calorimetry (DSC) and reported in the literature for the first time. The X-ray diffraction technique was employed to verify the crystallization behavior of the individual components and for the mixture tristearin plus refined palm oil. The UNIFAC model was successfully used to predict the liquidus line of these systems, with a root-mean-square deviation between the experimental and calculated melting temperatures below 1.3 %.

Patent
29 Dec 2010
TL;DR: A fat or oil useful for cooking applications which includes from 10 to 90% by weight diacylglycerols, and has a SFI of at least 15% at room temperature is disclosed in this article.
Abstract: Disclosed is a fat or oil useful for cooking applications which includes from 10 to 90% by weight diacylglycerols, and has a SFI of at least 15% at room temperature. In particular embodiments, the fat or oil is derived from palm oil, palm kernel oil, coconut oil, sunflower oil, soybean oil, corn oil, rapeseed oil, grape seed oil, rice bran oil, sesame oil, and peanut oil, or any combination thereof. In some cases, the fat or oil exhibits health benefits including reducing postprandial plasma lactate levels, controlled insulin response, lowered serum LDL, raised serum HDL, lowered total serum cholesterol, reduced risk of metabolic syndrome, reduced risk of diabetes mellitus, enhanced fetal health, enhanced insulin sensitivity, reduced risk of hypertension, and enhanced resistance to obesity per unit of consumption. Food compositions and methods of health enhancement utilizing the fats and oils of the invention are also disclosed.

Journal Article
TL;DR: In this article, the melting and crystallization profile of cocoa butter substitute (CBS) formulation consisting of oil blends between palm mid fraction (PMF) and rice bran oil (RBO) were measured through solid fat content using pulsed Nuclear Magnetic Resonance (pNMR) Bruker Minispe.
Abstract: The melting and crystallization profile of cocoa butter substitute (CBS) formulation consisting of oil blends between palm mid fraction (PMF) and rice bran oil (RBO) were measured through solid fat content using pulsed Nuclear Magnetic Resonance (pNMR) Bruker Minispe. The isothermal melting and crystallization behaviour were determined via Differential Scanning Calorimeter (DSC). The formulations were developed through binary mixture of palm mid fraction and rice bran oil with different ratios created using Mixture Design, Design Expert version 6.0. Selected formulations had been studied for compositional modification through immobilized lipase catalyzed by interesterification using Novozyme® 435. Three selected parameters such as temperature (40-60 oC), catalyst concentration (2-10%) and time (4-48 h) at 200 rpm orbital shaking with 14 formulations acquired by applying D-Optimal experimental design had been applied. The results showed that blends of 75% palm mid fraction with 25% rice bran oil and its 14 enzymatic interesterification (EIE) yields have the potential to perform the desired behaviour as the crystals are completely melt at 32.48 - 38.28 oC. However, the yields of formulation with EIE condition of 60 oC, 10% lipase and 48 h incubation time (labeled N) formed stable β crystals during tempering as it had melting peak at 34.19 oC which was closer to melting point of cocoa butter required in tempering to form V crystals (~34 oC), that assured best chocolate appearance and texture.

Patent
06 Jan 2010
TL;DR: In this paper, a complete set of semi-continuous rice bran oil refining equipment is proposed to solve the problems of long process flow, high equipment investment, large workshop floor area, high power consumption and high refining cost of rice bransoil refining equipment in prior art.
Abstract: The utility model relates to a complete set of semi-continuous rice bran oil refining equipment and solves the problems of long process flow, high equipment investment, large workshop floor area, high power consumption and high refining cost of rice bran oil refining equipment in prior art The technical proposal includes that the rice bran oil refining equipment comprises an intermittent degumming device, a continuous bleaching system device, a continuous deacidifying deodorizing device and an intermittent dewaxing device An intermittent oil refining caldron is sequentially communicated with a continuous vacuum drier, the bleaching device and a vane-type filter through pipelines, the vane-type filter is sequentially communicated with a continuous filling flashing tower, a time delayer and a filling deodorizing tower through pipelines, the filling deodorizing tower is sequentially communicated with an intermittent crystallizing and crystal-growing pot and a frame filter press Rice bran oil products produced by the complete set of semi-continuous rice bran oil refining equipment can satisfy main demands in current market; meanwhile, the complete set of semi-continuous rice bran oil refining equipment has the advantages of reliable equipment, low investment, reasonable process, low power consumption, low refining cost and high oil refining rate