consumption of food containing cholesterol and saturated fatty acids such as butter can increase serum cholesterol and cause cardiovascular diseases. therefore many efforts have been done for decreasing these constituents in foods. in this study, hazelnut and walnut powders were added to butter samples in amounts of 0 (not enriched sample), 10, 20 and 30% for evaluation of chemical characterist...

hydrogenation of oils might be considered as the largest reaction in the edible oil industry. the reaction consists of the addition of hydrogen at the double bounds of fatty acids. although for some reasons this might be considered a desirable reaction but for some others it might create problems in the food and nutrition chain circle due to the formation of saturated and trans fatty acids. soy...

the lowest lipid levels of capoeta erhani observed in winter and vice versa in summer. the fatty acid composition of the fillets was significantly different among seasons ( p <0.05), while the variations among sexes were not at the same degrees ( p >0.05). the ratios of the unsaturated fatty acids (ufas) were higher than half of the total fatty acids among all seasons. the level of pufa was hig...

to study the changes of serum uric acid level which is influenced by various factors including nutrition, race, socio-economic conditions age, sex, obesity and hyper lipidemia, a wide variety of survey appeared to be performed. for this study in six large provinces of iran out of 12,524 apparently healthy individuals a total of 2,744 persons of both sexes (1,439 females, 1,305 males) were selec...

this study was done to evaluate quality properties of pistacia atlantica var mutica (bene) nuts under deferent storage conditions and packaging. at the zero time, sfa and total tocopherol (tt) and total phenolic (tp) compounds were 6.8 and 725.28 and 40.1 mg per kg oil, respectively. some quality properties (peroxide value (pv), conjugated diene value (cdv) and carbonyle value (cv)) showed that...

the present study was carried out to investigate the effect of various refining processes’ conditions on conjugated dienes in soybean oil. conjugated dienes contents of soybean oil were found to undergo reduction in neutralization and bleaching steps while being increased in deodorization. it was observed that alkali refining (neutralization) through 12 and 14 °bé, bleaching with either acid ac...

the oil extracted from three major canola cultivars (hyolla401, hyolla420 and rgs003) grown in golestan province was analyzed for physico-chemical properties, fatty acid composition, minerals content, and stability during 16 weeks of storage. according to the results, the highest iodine value and refractive index belonged to hyolla401. the highest saponification value was observed in hyolla420....

castor oil due to extraordinary physicochemical properties has numerous applications in pharmaceutical, chemical, hygienic, biodiesel and nowadays in food industries. during plant growth and development, as well as during postharvest and processing, different factors may affect caster oil properties. this study was conducted to evaluate oil content and physiochemical properties under different ...

in the present study, oxidative stability of canola oil extracted with hot press at 85-100ºc was compared with unheated canola oil extracted with cold press at 40-45ºc.the stability of oil was measured every week during a four months storage using free fatty acid, acid value, peroxide value, anisidine value, totex value and rancimat test. the results obtained showed that pretreatment and method...