Showing papers on "Rice bran oil published in 1986"

Oryzanol content of Indian rice bran oil and its extraction from soap stock

Abstract: Oryzanol content of commercial rice bran oil was 1.34-1.95%, hexane extracted oil 1.12-1.38%, and chloroform:methanol (2:1) extracted oil 2.55-2.61%. The soap stock obtained by alkali refining of the oil contained 1.3-3.1% oryzanol. Optimum pH (levels tested 8.0-10.5) for extraction from soap stock was approx. 9.5. Diethyl ether was a better solvent than acetone. The oryzanol concn. could be upgraded by alumina column chromatography and recrystallization using methanol and methanol-acetone (2:1). The recrystallized material had an m.p. of 133-139 degree C and absorption maxima at 314, 290 and 230 nm in petroleum ether.

Rice bran oil and hypocholesterolemia in rats

Abstract: Rats fed rice bran oil at 10% level for a period of eight weeks showed significantly lower levels of total cholesterol, low density lipoprotein and very low density lipoprotein cholesterol, both on cholesterol-containing and cholesterol-free diets. High density lipoprotein cholesterol was increased but triglyceride showed a decrease that was not statistically significant. Liver cholesterol and liver triglycerides were also reduced. Fecal excretion of neutral sterols and bile acids was increased after ingestion of rice bran oil.

Edible quality rice bran oil from high ffa rice bran oil by miscella refining

Abstract: Rice bran oils high in free fatty acids (FFA) can be converted to cooking oil having low unsaponifiable matter and light color by a combination of miscella dewaxing and miscella refining.

Indian ricebran lecithin

Abstract: In view of the high potential of ricebran oil in India, lecithins recovered from crude and dewaxed Indian ricebran oil were analyzed and different classes characterized with the objective of effectively utilizing this valuable by- product. Lipid classes and individual phospholipid components were identified and estimated. Dewaxing was found to have a considerable effect on composition of the derived lecithin. The lecithin obtained from crude or dewaxed Indian ricebran oil consisted mainly of phosphatidylcholine, phosphatidylethanolamine, phosphatidylnositol and triglycerides, along with carbohydrates, free fatty acid, sterols and waxes (in case of crude oil). The major fatty acids of individual phospholipids were found to be palmitic, oleic and linoleic. Analytical characteristics of ricebran lecithin were shown to be comparable to local soybean lecithin. It can be expected that the gummy materials in the oil, presently lost with the soapstock during refining, could find important applications.

Fat-containing milk powder easily dispersible in cold water

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

Produciton of multiple function nutritious oil

Abstract: The present invention makes use of autocatalysis of rice bran oil with seed oil or with 1-3 vegetable oils and animal fats in reasonable proportions to perform a reformation of fats by ester transformation reaction, resulting in a product of which the composition of fatty acids is reasonable, preserving effectively glutamine and vitamin E in raw materials and reducing the isothiocyanic acid conteut in seed oil. This eatable oil product has excellent health-protection effect. Because the raw materials are plentiful and cheap, This technology is very profitable.

Production of fatty acid from alkali oil cake

Abstract: PURPOSE:To obtain high-quality fatty acids effectively for energy saving and pollution policy, by treating alkali oil cake with lipase to give decomposed oil cake, adding an acid to the cake to liberate fatty acids and heat-treating them with an emulsion breaking agent. CONSTITUTION:1pt.vol. alkali oil cake of fat and oil purification process of rice bran oil, beaf tallow, etc., is blended with =95% of the mixture is decomposed at 30-50 deg.C for <= several hours. Then, an acid is added to the decomposed oil cake, which is adjusted to <=3pH. The whole soap and acidic soap in the decomposed oil cake are converted into liberated fatty acids. Then, 0.01-10wt% based on the decomposed oil cake of an emulsion breaking agent (e.g., is solution of higher alcohol sulfate in acetone) is added to the decomposed oil cake, the blend is heated at 40-100 deg.C and centrifuged. A solvent is removed from a separated oil layer, and the fatty acids are further purified by distillation, to give high-quality fatty acids.

Blending Effect of Palm Oil on Physicochemical Properties of Rice Bran Oil

Abstract: Rice bran ell was blended with double fractionated palm olein (DF palm olein) to examine the cooking performance of blended oil. A blended oil made with 80% or higher rice bran oil and 20% or less DF palm olein passed the cold test, and had a cloud point of . Blending of DF palm olein to rice bran oil lowered the smoke point, refractive index, and absorbancies at 232 and 268 nm of rice bran oil. Dielectric constant of oils was not affected by blending during heating. Blending of DF palm olein , however, increased the acids formation in rice bran oil, whereas it retarded polymer formation. The results of the analytical methods used in this study except dielectric constant measurement showed significant difference among the blended oils depending on the blending ratios.