نتایج جستجو برای: acid and peroxide value
تعداد نتایج: 17006458 فیلتر نتایج به سال:
in this study, chemical composition, fatty acid (fa) profile and oil characteristics of seeds of salvia leriifolia benht collected from different regions of iran. all samples were rich in oil (24-28.5% dry weight basis), protein (24.5-28.5%) and crude fiber (13.1-16.6%). the mean values for ca, p, k, mg, fe, mn, cu, na and zn were found at the levels of 3866, 2970, 3141, 2584, 57, 18.5, 9.0, 10...
The aim of this study was correlation determination between fat putrefaction indices and antioxidative enzymes in chicken, cattle and camel meat during refrigerated storage. Longissimus dorsi muscle of three Iranian dromedary one humped camel and three Holstein cattle and breast muscle of three broiler breeder chicken were obtained from the carcasses 3 days postmortem. The samples were ground a...
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...
Canarium ovatum oil Engl. (pili nut oil) was extracted by using cold press method and then the physico-chemical properties of the oil samples, roasted pili nut oil (RPNO) and unroasted pili nut oil (UPNO) such as iodine value (IV), peroxide value (PV), acid value (% FFA), solid fat content (SFC), fatty acid composition and triacylglycerol (TAG) composition were determined. The percentage of oil...
the crude oil, crude protein, crude ash, crude fiber, total phenol and antioxidant activity values, peroxide values, specific gravity, the refraxtive index and acid value of citrullus lanatus and their oils were determined. fatty acid composition of seeds belong to both watermelon were determined by gas chromotography (gc). these oils are important sources of essential fatty acid, linoleic aci...
background: it has been considered by researchers to study the possibility of replacing chemical food additives (synthetic antioxidants) by natural products (medicinal plants). objective: this study investigated the antioxidant properties of satureja hortensis l. essential oil (sheo) on safflower oil oxidation. methods: different assays have been used to evaluate the antioxidant activity of she...
Fruit ripening stage at harvesting time is potentially a major contributor to olive oil yield and quality. Therefore, one of the main causes for low olive oil quality, at least in northern Iran, is harvesting fruits at improper time. In this study, effect of fruit harvest time on oil yield and quality of four olive cultivars, Zard, Rowghany, Arbequina and Coratina was investigated at Roudbar re...
Shortenings are a mixture of one or more vegetable edible oil with partial hydrogenation in mixed with or without animal fat. In this study, three formulations of shortenings, with the best commercial and technological properties were prepared. Increasing consumption of shortenings at the human daily diet, with low adverse coronary effects in human daily diet, three formulations prepared using ...
kilka fish are known as the main industrial and pelagic species of iran that are captured abundantly in the southern caspian sea. this study was conducted to survey the effectiveness of refinement steps on kilka (clupeonella delicatula) crude oil quality and fatty acid profiles. neutralization, bleaching, winterization and deodorization were performed on crude oil with deodorization done under ...
methanolic extracts of five native species of salvia from the labiatae family were evaluated for antioxidant activity in low-erucic acid rapeseed oil using the schaal oven test at 60°c, with deterioration monitored by determination of peroxide value, conjugated diene content and p-anisidine value. the activity of the salvia extracts was compared with that of tbhq, ascorbyl palmitate, and extrac...
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