Showing papers on "Pumpkin seed published in 2008"

Nutritional Evaluation and Physiochemical Properties of Processed Pumpkin (Telfairia occidentalis Hook) Seed Flour

Abstract: The effect of roasting on proximate composition and the levels of antinutritional factors, protein digestibility, minerals extractability and physiochemical properties of pumpkin seeds consumed in Suda n were determined. Results showed that processing significantly (p < 0.05) reduced protein content. Roasting of pumpkin seeds significantly (p < 0.05) reduced tannin and phytic acid content to 125.01 and 56.1 mg 100 1 g with a concomitant improvement in protein digestibility. Roasting of pumpkin seeds significantly (p < 0.05) improve total and extractable minerals as well as physicochemic al properties of the seeds flour with few exceptions.

Fatty Acid Composition, Tocopherols and Beta-Carotene Content in Polish Commercial Vegetable Oils

Abstract: The fatty acid composition, tocopherols and β-carotene content in the following vegetable oils: rapeseed, olive, arachide, sunflower, soybean, corn, grapeseed, pumpkin seed, sesame and linseed were evaluated. The study comprised commercial refined and cold pressed oils from different manufacturers. The fatty acid composition was determined by Gas Chromatography (GC) method on a 50m capillary column with a CP Sil 88 phase. α-, β-, γ-, δ-tocopherols and β-carotene contents were analyzed by HPLC method with a Lichrospher Si 60 column. The study showed that β-carotene was present only in some cold pressed oils. The amount of tocopherols varied much between oil types and between the same type of oil from different producers. Among all tested oils, sunflower oil had the highest vitamin E content. The rapeseed oil, the most popular on Polish market was characterized by the highest content of α-linolenic acid and the lowest 18:2/18:3 ratio. The α-tocopherol equivalent to polyenoic content ratio was the highest in olive oil and the lowest in commercial linseed oil. Only 1.6% of linolenic acid in the total fatty acid composition was observed in the linseed oil.

Avaliação do efeito fisiológico da farinha de semente de abóbora (Cucurbita maxima, L.) no trato intestinal de ratos

Abstract: This study has the aim to evaluate the physiological effects of the Pumpkin Seed Flour (PSF) on the intestinal tract of newly weaned male Wistar rats fed on diets containing whole Sifted and Residual - PSF for ten days. The experimental diets were prepared substituting 30% of the total content of starch and dextrin of the control diet for the corresponding PSF. The control and the experimental diets were chemically characterized. The animals were divided into four groups in order to evaluate growth, ingestion, feces, and cecal pH. The PSFs and the experimental diets presented high contents of alimentary fibers, proteins, and lipids. Similar ingestions of diets containing whole Sifted and Residual - PSF resulted in body weight gain. Rats on diets containing PSFs showed higher feces volume and weight (p > 0.05) in addition to an expressive insoluble fiber excretion, especially in the Residual - PSF group. Only the Residual PSF presented a significant reduction (p < 0.05) in the cecal pH. These results indicate the PSFs potential as a fiber source and its ability to increase the fecal weight and volume promoting a laxative effect.

Optimisation of the growth conditions and genetic characterisation of Pleurotus species

Abstract: A comprehensive genetic and optimisation of the growth conditions study of fifteen Pleurotus species and strains from Belgian Coordinated Collections of Microrganisms/ Mycotheque de l’ Universite Catholique de Louvain (Agro) Industrial Fungi and Yeasts Collection was carried out. The optimal environmental conditions for the Pleurotus strains were determined by establishing variability in growth response and primordium development on agar media over a range of growth parameters: osmotic potential (− 0.5 MPa to − 5.0 MPa), temperature (5 to 40 °C) and pH (2 to 12). The maximum growth rates and the optimum conditions for growth varied for the different strains. A Pleurotus ostreatus strain able to grow and fruit at elevated temperatures (25 °C) was identified that has potential for cultivation in the tropics. Nine strains were identified with high growth rates. Primordia were produced at low pH (4 to 6), at suboptimal growth temperatures (£ 25 °C), and under moderate water stress (−0.5 to −3.5 MPa). An investigation into the effect of micro-solute concentration changes on the growth response of the Pleurotus species was carried out on agar media using microconcentrations of polyethylene glycol (PEG) 6000, potassium chloride (KCl) and sodium chloride (NaCl). The solutes at micro-concentrations ranging from 0.35 g l-1 to 1.00 g l-1 for PEG 6000, 1.50 g l-1 to 3.85 g l-1 for KCl and 0.60 g l-1 to 1.54 g l-1 for NaCl produced a two to three fold increase in the growth rate of the Pleurotus strains, which has potential application in oyster mushrooms (Pleurotus species) spawn production and cultivation. The optimum micro concentrations of combined KCl and NaCl solutes of 2.70 g l-1 KCl: 1.08 g l-1 NaCl or 3.85 g l-1 KCl: 1.54 g l-1 NaCl at 20 °C; and 1.50 g l-1 KCl: 0.60 g l-1 NaCl or 2.70 g l- 1 KCl: 1.08 g l-1 NaCl for both 25 °C and 30 °C; of PEG 6000 of 0.90 g l-1 (20 °C) and 0.65 g l-1 (25 and 30 °C) were identified. Development of alternative spawn substrate protocols was done by varying the boiling, soaking periods for the substrates (maize [Zea mays] grain, maize cobs, pumpkin seeds [Cucurbita sp.] and bean seeds [Phaseolus vulgaris]). Maize grain, pumpkin seeds and maize cobs with a water content of 35 to 39 %, 41 to 47 % and 64 % respectively have potential use as alternative substrates to wheat (Triticum aestivum) grain in Pleurotus species spawn production. The feasibility of creating novel media formulations for culturing Pleurotus strains was investigated by developing various whole wheat grain and crushed wheat grain mixtures. The novel media formulations of 1:3 (w/v) to 1:5 (whole wheat grain: distilled water) and 1:3 to 1:15 (crushed wheat grain: distilled water) were determined to be optimal for use as low-cost alternative media for culturing Pleurotus species for spawn production and cultivation purposes. An investigation in the use of Tyndallisation as a means of sterilising the growth media for spawn production was carried out by modifying primarily the boiling times and number of days of incubation. Tyndallisation of 30 minutes boiling daily for three days (wide-mouthed bottles) and 5 minutes boiling for four days (narrowmouthed bottles) were optimal for production of Pleurotus species spawn. Alternative single substrates and substrate mixtures (1:1) were determined by growth and basidiome production on thatch grass (Agropyron sp.), banana fronds (Musa sapientum), wheat straw, sage (Coleochloa setifera); banana + sage, banana + grass, banana + wheat straw and sage + grass. Grass and sage were the best substrates singly and in combination with banana. Biological efficiencies greater than 140 % were obtained. Positive and negative synergistic effects on primordium development dependant on the strain and substrate mixture were noted. Genetic variability of Pleurotus species and strains was investigated by sequencing the internal transcribed spacer (ITS) region of ribosomal DNA. The 15 Pleurotus strains separated into four clusters. The internal transcribed spacer sequences analysis suggested that strain 31674 was misidentified as P. sajor-caju instead of P. ostreatus. The value of noting the history of the strain in phylogenetic analysis was proposed. This study recommends BCCM/MUCL strain 31017 (P. sajor-caju) for spawn production and cultivation processes due to having the characteristics of high growth rate, high biological efficiency, prolific primordial formation and moderate xerotolerance which are highly desirable for spawn production and cultivation processes.

Method for producing of raw oil

Abstract: A method of manufacturing fresh plant oil by expelling oil from plant seeds at low temperature without heat treatment is provided to prevent the production of carcinogen which causes the cancer and to inhibit impurities in plant oil in advance and to permit long-term storage of the original flavor and color of plant oil. A plant seed stored at 0 to 10deg.C is soaked in water, washed 1 to 3 times and then dried at 30 to 48deg.C to a moisture content of 5 to 10%. Foreign material is sorted from the dried plant seed by using a wind force; sorted plant seed is extracted at 30 to 48deg.C and settled at room temperature for 4 to 8 days in natural state. The plant seed is any one selected from sesame seed, perilla seed, pumpkin seed, lotus seed and mulberry seed.

Method for producing fat extract powders of plant seed

Abstract: A method for preparing fat-extracted powder of plant seeds is provided to dry plant seeds such as pine-nuts, pumpkin seeds, sesame and perilla seeds and extract fats from them so as to maintain the specific taste, flavor and color without the destruction of nutrients. A method for preparing fat-extracted powder of plant seeds comprises the following steps of: washing plant seeds with water once to three times(S100); drying the washed plant seeds at 30~48‹C until the moisture content is less than 10%(S110); separating foreign materials from the dried plant seeds using wind force(S120); squeezing the plant seeds at 30~48‹C until the fat content becomes 5-15%(S130); pulverizing the plant seeds and selecting the particles with a size of 50mum ~ 5mm(S140); and sterilizing the selected the particles and packaging them(S150,160). The plant seed represents pine-nut, pumpkin seed, sesame, perilla seed, lotus seed, mulberry seed, flaxseed, Chia seed, sunflower seed, walnut, cocoa or peanut.

Softening of pumpkin seeds (cucurbita moschata) by alkaline maceration

Abstract: The nutritional value of pumpkin seeds is widely recognized. This article shows that alkaline maceration of pumpkin seed makes them soft and improves their market acceptability as an important source of fiber, unsaturated lipids, minerals and proteins. Microscopic characterization of pumpkin seeds was realized. The results indicate elimination of minerals from the seeds through the delignification process due to the nature of the phenolic compounds eliminated in the maceration liquid. The alkaline maceration process of pumpkin seeds may contribute to a larger consumption of fibers and other nutritive elements from them. PRACTICAL APPLICATIONS This work shows that the pumpkin seeds softened by chemical maceration improve sensory preferences, compared to nonmacerated products. Solid waste from pumpkin process can be converted to a new product as a snack rich in fiber and other important compounds, normally discarded as an industrial solid waste.

Squash hybridization seed producing method for seed

Abstract: The invention discloses a hybrid producing method of hybrid pumpkin seeds, which is characterized by the following: doing parental generation breeding; selecting ground to separate; grading; fertilizing; germinating; sowing; crossing; pollinating; harvesting seed; obtaining the seed of the pumpkin with big seed piece and transverse radius at 12mm and longitude radius at 22mm; making the even producing quantity of the seed at 250-300 with consistent seed size, strong disease-resistant property and stable production.

Isolation of cucurbitacin E from pumpkin seed and analysis of its anti-cancer and anti-inflammatory activities

Abstract: In order to improve the use of pumpkin seed, the present study was performed to isolate compositions of the bitter substances which were not seen in pumpkin seed itself but biosynthesized during ge...

Drying method and apparatus for pumpkin seed

Abstract: The invention relates to a drying method of white pumpkin seeds. Firstly, cleaned white pumpkin seeds are sent to a centrifugal drier and rotated at high speed in a roller and under the centrifugal effect, water on the surface of the white pumpkin seed is separated from the white pumpkin seed; then the dried white pumpkin seeds by centrifugal force are air-dried. The equipment for implementing the method comprises a stand, on which a fixing support is arranged on; a water collecting cylinder is fixed inside the fixing support; the upper end of a centrifugal cylinder with sieve pores is arranged in movable matching at the upper end of the fixing support and the lower end of the centrifugal cylinder with sieve pores is fixedly connected with a rotating wheel; pores for removing water are evenly cut on the surface of the cylinder body of the centrifugal cylinder with sieve pores; baffles are arranged inside the cylinder body and turnover baffles which are controlled by a top pin are arranged at the bottom of the cylinder; the rotating wheel is driven by a motor through a belt. The drying method of the invention for drying white pumpkin seeds has high drying speed, low cost and high production efficiency and can help farmers quickly complete the drying work; the dried white pumpkin seeds have good quality, thus dramatically increasing the incomes of farmers and solving the long standing problem that a great amount of white pumpkin seeds can not be dried in the short time. The method can be widely applied to the drying of the white pumpkin seeds.

Isolation of Cucurbitacin E from Sprouted Pumpkin Seed and Analysis of Its Anti-cancer and Anti-inflammatory Activities

Abstract: In order to improve the use of pumpkin seed, the present study was performed to isolate compositions of the bitter components which were not seen in pumpkin seed itself but newly biosynthesized during germination of the seed. The compositions isolated were then further purified by TLC and preparative HPLC in which a fraction with Rf 0.73 and RT 10.3 was obtained. Cucurbitacin E with molecular weight of 557 from the fraction was finally identified by subsequent structural analysis of LC-MS/MS. The production of cucurbitacin E peaked with 224.7 mg/kg at 4 days of germination at with the water supply at ntervals of 48 hrs in the darkness, while that of cucurbitacin E reached 146.7 mg/kg in the brightness. In vitro-cell based assays demonstrated that the isolated and purified cucurbitacin E inhibited proliferation of A549 lung cancer cells and suppressed expression of the IL-- or PMA-induced cyclooxygenase-2, an inflammatory protein in A549 cells, suggesting its anti-proliferative and anti-inflammatory activities.

Traditional Chinese medicine for treating tapeworm disease

Abstract: A Chinese traditional medicine for curing tapeworm disease belongs to the Chinese traditional medicine for curing tapeworm disease. The ingredients of the medicine (with weights) are areca 12g, areca peel 10g, sodium sulfate 10g, chili in Sichuan province 15g, ebony 15g, agrimony 15g, pumpkin seed 50g and rhubarb 30g. The medicines used in the prescription are all natural herbs and the Chinese traditional medicine is processed with traditional method; the fetching of material is convenient and the prescription and manufacture method are simple; the expense for manufacturing the medicine is low. The composition of the Chinese herbal medicine is simple and the medicines used in the prescription are all natural ones and the fetching and use are convenient; the manufacture method is simple and the effect is excellent; the price is low; in this way, the herbal medicine is especially fit for people living in remote villages far away from counties and towns; the curing expense for patients with the tapeworm disease is low which solves the problem that the household income is low and the life is poor and the medical conditions is deficient locally. Moreover, patients have no adverse reaction in the curing process with the prescription.

Pumpkin seed hot wind drying machinery

Abstract: The utility model relates to a hot air dryer for white melon seeds, belonging to the drying equipment technology field, in particular to an equipment for drying melon seeds, which rapidly dries white melon seeds through a nested roller and the continuous operation of a hot air stove and has the good drying quality, the large yield and the small energy consumption. The utility model comprises a motor (1) and a drive device fixed on a machine frame (6), wherein a driven wheel of the drive device is arranged on one end of a mandrel (7) of a nested roller (4), the mandrel (7) is fixed on the machine frame (6), an air duct (41) of the nested roller (4) is communicated with the outlet of a hot air stove (8), the front end of the nested roller (4) is provided with a charging hole (2), the lower part of the nested roller (4) is provided with a discharging hole (9), and the front end of the nested roller (4) is provided with a hole end cover (3). The utility model is used to dry melon seeds and other crops, such as rice, barley, wheat, corn, etc.

Benzo(a)pyrene contamination of vegetable oils

Abstract: Benzo(a)pyrene (B(a)P) analysis was carried out with glass chromatographic column with alumina followed by reverse phase high-performance liquid chromatography (HPLC) and spectrofluorometric detection. B(a)P level in 40 vegetable oils were as follow: from 0.11 to 0.38 microg/kg in olive; from 0.92 to 3.74 microg/kg in rape seed oils; from 0.11 to 2.25 microg/kg in sunflower oils and from 0.33 to 1.26 microg/kg in soya oils. In another investigated oils: arachide (peanut) corn, safflower, linen, hempen, sesame, pumpkin seeds, grape seeds---values from 0.10 to 1.44 microg/kg and 3.83 microg/kg in sea buckthorn oil were detected. B(a)P concentration in 4 from 40 investigated oils exceed the 2 ppb limit proposed by the European Commission. Heating of sample of oils: olive, rape, soya, linen, corn, sesame, peanut, in temp. 240 degrees C for 30 min. has not influence on decreased of B(a)P level.

Method of production of preserved food "rice salad with smoked chicken and pineapples"

Abstract: FIELD: food industry.SUBSTANCE: method involves pineapples cutting and blanching, lettuce and parsley greens cutting and freezing, chicken meat cutting, rice cooking till weight increases by 150%, walnut kernels crushing, ground pumpkin seeds extraction cake pouring with drinking water at a weight ratio equal to nearly 1:5 and maintenance for swelling, the listed components mixing with lemon juice, sugar, salt, white pepper and CO-extract of pyrolysis wood, the produce mixture and mayonnaise packing, sealing and sterilisation to produce the target product.EFFECT: method allows to reduce the manufactured target product adhesion to container walls.

Traditional Chinese medicine for treating beef tapeworm

Abstract: A Chinese traditional medicine for curing beef tapeworm disease belongs to the Chinese traditional medicine for curing tapeworm disease. The ingredients of the medicine (with weights) are pumpkin seed 80g and areca 80g. The medicines used in the prescription are all natural herbs and the Chinese traditional medicine is processed with traditional method; the fetching of material is convenient and the prescription and manufacture method are simple; the expense for manufacturing the medicine is low. The composition of the Chinese herbal medicine is simple and the medicines used in the prescription are all natural ones and the fetching and use are convenient; the manufacture method is simple and the effect is excellent; the price is low; in this way, the herbal medicine is especially fit for people living in remote villages far away from counties and towns; the curing expense for patients with the beef tapeworm disease is low which solves the problem that the household income is low and the life is poor and the medical conditions is deficient locally. Moreover, patients have no adverse reaction in the curing process with the prescription.

Nutritional and functional properties of jojoba, hibiscus and pumpkin seed kernal flours

Abstract: The, present study was carried out to maximizing the available and valuable sources of proteins of the agriculture plant`s waste and industry duties . So this research focusing on the nutritional and functional properties of defatted hibiscus, jojoba and pumpkin seeds flour. Analysis were carried out on defatted seeds, to determine proximate chemical composition , such as crude protein , ether extract, ash, crude fiber, amino acids and carbohydrate content.The latter was calculated by difference. Protein content ranged of 23.4, 28.0 and 53.5 % of dry mater base (DM) of jojoba seeds flour (JF), hibiscus seeds flour (HF), and pumpkin seeds flours (PF) respectively. In addition, fat content ranged from 13.9 % to 33.8 % of HF and PF, respectively, while the highest fat content 54.9% obtained from JF. Antinutritional compounds, such as phytates detected in all flours, ranged from 0.23 to 0.5 g/100g DM. Functional properties of all flours were assessed, such as water absorption index (WAI), water soluble index(WSI), acid number (pH), foam capacity (FC) and foam stability (FS). All flours were excellent in their functional properties except FC and FS of PF was inferior good. Amino acids compositions of these flours were also determined. The protein of these flour had abundant amount of total essential amino acids and higher than recommended by FAO/ WHO (1973). This research classified the amino acids of all seeds flour into groups to identify the flour potential for food supplementation in bakery and meat processed formulation. The nutritional value of the protein and its quality methods based on in vitro (chemical) and animal bioassays in vivo for assessment of protein quality have been developed by predicting protein quality depending on the determination of amino acids and calculated chemical scores, essential amino acid index (EAAI), amino acid / essential amino acids ( A/E ) ratio, amino acids score (AAS), estimated biological (BV) and calculated protein efficiency ratio ( PER ). An in vivo of protein quality depending on biological assessment using rats which depending on true digestibility percentage (TD), BV and net protein utilization (NPU) were investigated. By comparison, between their chemical estimation and bioassay, it's clearly view that, both of HF and PF had good quality protein; as expressed by their high TD, BV and NPU when compared to poorly JF. Both of these flours were significantly a quite similar to standard protein of casein. Meanwhile, jojoba flour had a considerable amount of antinutritional factors of simmondsin, which act as satiety inducers and impede bioavailability of protein. All of these nutritional values of the different flours HF and PF concluded those have an excellent protein and nourished sources. These flours could be potentially added to food system, such as bakery products, complementary foods and meat products, moreover JF have been promising not only their nutritive value but also for their responsibility to diminish satiety and reducing food intake for dietetic persons.

Vibration balance of super-long white melon seed refining machine

Abstract: The utility model relates to a vibration balancing for an over-long style pumpkin seeds cleaning machine, as the cleaning for pumpkin seeds, the length of screen surface of common length can not amount to screening requirement, only when the length is lengthen to three times of the original length, and is fixed with more than four layers sieves with different sizes, the quality of screening can reach the existent exporting and finely processed standard. But simultaneously the weight of a screening machine exceeds that of a specific weight platform by three to four times, which destroys the existent vibration balancing of the machinery, the integration structure of the screening machine can not complete the operation requirement, thereby impeding further development of the machine. The utility model is composed of a motor (10) which is connected with the specific weight platform (14) via an off-center driving wheel (13), and the specific weight platform (14) is connected with the lower screening machine (4) via a driving gear, wherein the lower screening machine (4) is connected with the upper screening machine (3). The utility model is engaged with the pumpkin cleaning machine, which is used for cleaning, screening and grading of the pumpkin seeds and angle seeds to reach the exporting and finely processed standard.

Avaliação do efeito fisiológico da farinha de semente de abóbora (Cucurbita maxima, L.) no trato intestinal de ratos Evaluation of the pumpkin (Cucurbita maxima, L.) seed flour effects on the intestinal tract of rats

Abstract: This study has the aim to evaluate the physiological effects of the Pumpkin Seed Flour (PSF) on the intestinal tract of newly weaned male Wistar rats fed on diets containing whole Sifted and Residual - PSF for ten days. The experimental diets were prepared substituting 30% of the total content of starch and dextrin of the control diet for the corresponding PSF. The control and the experimental diets were chemically characterized. The animals were divided into four groups in order to evaluate growth, ingestion, feces, and cecal pH. The PSFs and the experimental diets presented high contents of alimentary fibers, proteins, and lipids. Similar ingestions of diets containing whole Sifted and Residual - PSF resulted in body weight gain. Rats on diets containing PSFs showed higher feces volume and weight (p > 0.05) in addition to an expressive insoluble fiber excretion, especially in the Residual - PSF group. Only the Residual PSF presented a significant reduction (p < 0.05) in the cecal pH. These results indicate the PSFs potential as a fiber source and its ability to increase the fecal weight and volume promoting a laxative effect.