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brassicasterol/raps
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15 resultater
Isolation of brassicasterol from steam deodorizer distillate of rapeseed oil: Some properties of its acetate tetrabromide and its reduction to 22,23-dihydrobrassicasterol.
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Brassicasterol (5,22-ergostadien-3β-ol) was isolated from the steam deodorizer distillate of rapeseed oil and purified by acetylation, bromination, chromatography on 20% AgNO3/SiO2 columns and hydrolysis. Brassicasteryl and stigmasteryl (5,22-stigmastadien-3β-ol) acetates were brominated, and the
Formation of modified fatty acids and oxyphytosterols during refining of low erucic acid rapeseed oil.
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Formation of trans fatty acids and cyclic fatty acid monomers was investigated during refining of low erucic acid rapeseed oil. The first steps of the refining process, that is, degumming, neutralization, and bleaching, hardly modified the fatty acid profile. In contrast, deodorization produced
The Effect of Temperature and Moisture Content of Stored Rapeseed on the Phytosterol Degradation Rate.
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The effect of temperature (25 or 35 °C) and moisture content (10, 12.5, 15.5 %) on rapeseed phytosterol degradation was examined for 18 days. Statistical analysis showed that temperature, moisture and time of storage have a significant effect on phytosterol degradation. After 18 days of seed storage
Effects of margarine enriched with plant sterol esters from rapeseed and tall oils on markers of endothelial function, inflammation and hemostasis.
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OBJECTIVE
The sterol profile of rapeseed oil differs from that of tall oil with higher contents of campesterol and brassicasterol. We previously found that margarines providing 2 g/day of sterols from rapeseed or tall oil resulted in similar reductions in LDL cholesterol of 8-9%. The aim of the
Extraction of phytosterols and tocopherols from rapeseed oil waste by supercritical CO2 plus co-solvent: A comparison with conventional solvent extraction.
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In the present study, modified extraction methods using supercritical CO2 were investigated in order to obtain high-added value compounds from rapeseed oil deodorizer distillate and comparisons were done with modified Soxhlet extraction (solvent extraction + silica). For supercritical
Effect of rapeseed oil-derived plant sterol and stanol esters on atherosclerosis parameters in cholesterol-challenged heterozygous Watanabe heritable hyperlipidaemic rabbits.
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Rapeseed oil (RSO) is a novel source of plant sterols, containing the unique brassicasterol in concentrations higher than allowed for plant sterol blends in food products in the European Union. Effects of RSO sterols and stanols on aortic atherosclerosis were studied in cholesterol-fed heterozygous
The content and composition of sterols and sterol esters in low erucic acid rapeseed (Brassica napus).
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The low temperature crystallization technique for the enrichment of "minor" components, such as sterols and sterol esters, from vegetable oils was applied to low erucic acid rapeseed oils. The recovery of free sterols and sterol esters was estimated by use of(14)C-cholesterol and(14)C-cholesterol
Fucosterol Causes Small Changes in Lipid Storage and Brassicasterol Affects some Markers of Lipid Metabolism in Atlantic Salmon Hepatocytes.
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Several feeding trials with Atlantic salmon fed naturally high phytosterol concentrations due to dietary rapeseed oil inclusion have shown changes in lipid metabolism and increased hepatic lipid storage in the fish. An in vitro trial with Atlantic salmon hepatocytes was, therefore, performed to
Comparative Metabolomic Analysis of Rapeseeds from Three Countries.
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Rapeseed is an important oilseed with proper fatty acid composition and abundant bioactive components. Canada and China are the two major rapeseed-producing countries all over the world. Meanwhile, Canada and Mongolia are major importers of rapeseed due to the great demand for rapeseed in China. To
Plant sterols from rapeseed and tall oils: effects on lipids, fat-soluble vitamins and plant sterol concentrations.
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OBJECTIVE
Data comparing the impact of different sources of plant sterols on CVD risk factors and antioxidant levels is scarce. We evaluated the effects of plant sterols from rapeseed and tall oils on serum lipids, lipoproteins, fat-soluble vitamins and plant sterol concentrations.
RESULTS
This was
Investigation of unsaponifiable matter of plant oils and isolation of eight phytosterols by means of high-speed counter-current chromatography.
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Phytosterols are minor components of plant oils. Due to their beneficial effect on human serum cholesterol level, new products supplemented with phytosterols have been marketed. Commercial phytosterol standards are frequently of insufficient purity, very expensive, only available in (semi-)
Toxic oil syndrome: traceback of the toxic oil and evidence for a point source epidemic.
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Rapeseed oil denatured with aniline was the vehicle of the causal agent of the toxic oil syndrome (TOS) epidemic that occurred in Spain in 1981. Although the precise aetiologic agent remains unknown, researchers established that increasing concentrations of oleyl anilide and other fatty acid
Expression of a Streptomyces 3-hydroxysteroid oxidase gene in oilseeds for converting phytosterols to phytostanols.
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Plant sterols and their hydrogenated forms, stanols, have attracted much attention because of their benefits to human health in reducing serum and LDL cholesterol levels, with vegetable oil processing being their major source in several food products currently sold. The predominant forms of plant
Characterization of commercial Sacha inchi oil according to its composition: tocopherols, fatty acids, sterols, triterpene and aliphatic alcohols.
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Sacha inchi oil (SIO) is one of the largest vegetable oil exports in Peru, used for consumption, in the food industry, cosmetics, and pharmaceuticals; it represents a significant economic income for producers. This study addresses the characterization and quantification of fatty acids, tocopherols,
Study of variation of tocochromanol and phytosterol contents in black and yellow seeds of Brassica napus L. doubled haploid populations.
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BACKGROUND
In the study, an analysis of tocopherols, plastochomanol-8 and phytosterols was conducted using DH lines obtained from F1 hybrids of reciprocal crosses between yellow- and black-seeded lines.
METHODS
The biological material for the study consisted of two DH populations of winter oilseed
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