نتایج جستجو برای: rancimat
تعداد نتایج: 137 فیلتر نتایج به سال:
The aim of this work was to compare the positional fatty acid composition, sterols, tocopherols and oxidative stability of mustard oil (MO) and rapeseed oil (RSO). The MO contained higher levels of erucic acid (42.8%) and linolenic acid (18.2%), compared with RSO (0.4 and 8.6%) whereas the RSO contained higher levels of oleic acid (62.2%) and linoleic acid (19.5%), than that of MO (17.4 and 15....
in recent years the use of toxic and carcinogenic synthetic antioxidants are recommended to get limited. therefore, the use of natural resource materials as an alternative substitution for synthetic compounds is indispensable. throughout the present study, antioxidation properties of fennel essential oil, at different concentrations containing 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 and 0.8 mg/ml in ...
The use of natural additives in biodiesel has been investigated, however, there is limited information the literature relation to their influence on corrosion resistance and oxidative stability. This work aims investigate stability carbon steel (AISI 1020) contact with soybean solutions (B100) presence absence such as: rosmarinic acid, curcumin, gingerol, eugenol, thymol quercetin. Corrosion mi...
Two Marula, Sclerocarya birrea seed samples originating from Western Sudan, were analyzed, and the characteristics and constituents of the kernel oils were determined, including physico-chemical properties, specific gravity, oil colour, refractive index, saponification value, unsaponifiable matter, acid value, free fatty acids, and phosphorus content. Total fatty acid compostion was determined ...
This study was carried outto investigate the effect of ultrasound-assisted extraction (UAE) on polyphenols from olive pomace with methanol (80%) as an extracting medium and studythe effects of addingthe extract to refined sunflower oilduring accelerated oxidationconditions. Ahigh amount of polyphenols was extracted from the olive pomace with a solvent-to-solid ratio of 40 at 50% of the maximum ...
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