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Rice bran oil

About: Rice bran oil is a research topic. Over the lifetime, 2102 publications have been published within this topic receiving 32504 citations.


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Journal Article
TL;DR: In this article, the effects of anti-inflammatory and antioxidant activity from cold-press rice bran oil was investigated in four rice varieties in terms of anti inflammatory and antioxidant activities, and two methods, DPPH radical scavenging assay (DPPH assay) and Ferric Reducing Antioxidant Power (FRAP) assay were used and compared with gallic acid standard and ferric sulfate (FeSO 4 ), respectively.
Abstract: Objective: The present study is investigation in the rice bran oil from four rice varieties in term of anti-inflammatory and antioxidant activities. Methods: This research studied the effects of anti-inflammatory and antioxidant activity from cold press rice bran oil . For anti-inflammatory, their inhibitory activity of nitric oxide (NO) production using RAW267.4 cell lines was evaluated. And two methods for antioxidant activities, DPPH radical scavenging assay (DPPH assay) and Ferric Reducing Antioxidant Power (FRAP) assay were used and compared with gallic acid standard and ferric sulfate (FeSO 4 ), respectively. Results: For the Oryza Sativa L. Khaw-khaw exhibited the highest activity against the NO production with an IC 50 value of 41.96 μg/ml, followed by O. Sativa L. Hom Pathum (46.58 μg/ml), O. Sativa L. Hom Mali (53.84 μg/ml) and O. Sativa L. Hom Mali Gorkho (59.43 μg/ml). However, the antioxidant activity, DPPH method found O. Sativa L. Hom Mali Gorkho displayed the most potent effect with IC 50 value of 0.08 mg/ml, followed by O. Sativa L. Hom Pathum (0.11mg/ml), O. Sativa L. Hom Mali (0.12mg/ml) and O. Sativa L. Khaw khaw (0.88 mg/ml), respectively. The assay of FRAP showed the highest in O. Sativa L. Hom Mali Gorkho with an IC 50 value 2.27 mg/ml, followed by O. Sativa L. Hom Pathum (4.30 mg/ml), O. Sativa L. Khaw khaw (6.67 mg/ml) and O. Sativa L. Hom Mali (7.68 mg/ml), respectively. Conclusion: This study indicated that cold press rice bran oil from rice varieties in Thailand is responsible for anti-inflammatory and antioxidant activity. Therefore, this study supports the tradition use of cold press rice bran oil for treatment of inflammatory related diseases though the inhibition of nitric oxide release. Keywords: Anti-inflammatory , Antioxidant activities, Oryza Sativa L., Nitic Oxide.

6 citations

01 Nov 2007
TL;DR: In this paper, the effects of rice bran oil properties on the fuel economy and exhaust emissions were experimentally examined by a single cylinder, four cycle, direct injection, water-cooled diesel engine operating at several engine loads and speeds.
Abstract: In order to investigate the effect of heated temperature on fuel injection rate for fuels such as light oil, blend of rice bran oil and light oil, and pure rice bran oil as a parameter of injection pump rack stroke, tests are performed by an injection pump tester at three kinds of cam shaft speed. In this study, also, the effects of rice bran oil properties on the fuel economy and exhaust emissions are experimentally examined by a single cylinder, four cycle, direct injection, water-cooled diesel engine operating at several engine loads and speeds. The fuel injection timing is fixed to 22° BTDC regardless of fuel types, engine loads and speeds. The kinematic viscosity of rice bran oil is very high compared with light oil. Also, the oxygen is not contained at all in light oil, while the oxygen contents of 10.7% are included in rice bran oil. In this study, results show that fuel injection rate increases as injection pump rack stroke and cam shaft speed are elevated at the same conditions, and as heated temperature is elevated with the exception of light oil. It is also found that brake specific fuel consumption rate and NO x emissions increase, while soot emissions decrease as the blending rate of rice bran oil is enriched. Thus we can conclude that the combustion process which affect the fuel economy and exhaust emissions of diesel engines using rice bran oil as a fuel is controlled by the differences of chemical and physical properties.

6 citations

Journal ArticleDOI
01 Sep 2019
TL;DR: In this article, the ideal bran to solvent ratio to obtain the highest extraction yield using optimal temperature was determined and the extraction process was done at various temperature (40, 50, 60C), and various bran-to-solv ratio (1:5, 1:10, 1 :15 w/v) for 2 hours at 40 kW.
Abstract: Rice bran oil (RBO) is one of edible oil which widely used in chemical, pharmaceutical, and food industries due to its unique properties and high medicinal value. RBO obtained by ultrasound-assisted extraction using n-hexane as solvent. This present study aims to determine the ideal bran to solvent ratio to obtain the highest extraction yield using optimal temperature. Rice bran which 90% passable through a sieve with 700 μm opening, was used for the extraction process. The extraction process was done at various temperature (40, 50, 60C), and various bran to solvent ratio (1:5, 1:10, 1:15 w/v) for 2 hours at 40 kW. The highest yield ultrasound-assisted extraction was 20.35% with ideal bran to solvent ratio 1:5 w/v using 60C. The RBO yield increased with increasing bran to solvent ratio and temperature at the isobaric condition.

6 citations

Patent
11 Apr 1986
TL;DR: In this article, the objective milk powder is compounded with an oil or fat component composed of (A) 25W50wt% fractionated palm kernel oil having a melting point of ≤22°C and (B) 50W75wt% slightly hydrogenated vegetable oil and/or fractionated polyethylene glycolysis (PEG) polyester polysilicon (PPSP) polypropylene (PEP) polysiloxane (PSO)-polyethylene (polysilicon)-oxygen (oxygenoxygen) polychloropyrene (oxy
Abstract: PURPOSE: To provide fat-containing milk powder easily dispersible in cold water and comprising a mixture of a fractionated palm kernel oil and a slightly hydrogenated vegetable oil and/or fractionated palm oil, wherein the sum of linoleic acid and linolenic acid is a specific fraction of whole fatty acids. CONSTITUTION: The objective milk powder is compounded with an oil or fat component composed of (A) 25W50wt% fractionated palm kernel oil having a melting point of ≤22°C and (B) 50W75wt% slightly hydrogenated vegetable oil and/or fractionated palm oil having a melting point of ≤20°C, wherein the sum of linoleic acid and linolenic acid is <10wt% of the whole fatty acid. The raw material of the slightly hydrogenated vegetable oil having a melting point of ≤20°C is e.g. rapeseed oil, cottonseed oil, corn oil, rice bran oil, etc. The oil or fat specified above is compounded with raw materials or milk powder such as lactose, sugar, dextrin, defatted milk powder, whey powder, etc. COPYRIGHT: (C)1987,JPO&Japio

6 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202344
2022114
202199
202087
2019103
2018121