نتایج جستجو برای: peroxide value
تعداد نتایج: 764700 فیلتر نتایج به سال:
In this study, moisture content, free fatty acids, peroxide, iodine value, unsaponifiable matter, saponification value, fatty acid composition and tocopherol contents of wheat germ oil obtained by SC-CO2 extraction and cold press technology were investigated. Moisture, free fatty acid (FFA), peroxide value, iodine value, unsaponifiable matter and saponification value of cold pres...
Pistachio is a nut with high consumption that can be affected by aflatoxin contamination. Regarding influence of this fungus on global trade, broad studies in this area seem to be necessary. In this research, pistachio nuts were coated with methyl cellulose at different concentrations of 0.1%, 0.5%, 1%, and 2% by immersion method. Samples were stored in an incubator (25°C) for 4 months. Imaging...
This research was conducted to evaluate the nutritional value of vicia faba residues processed with some chemical compounds using in vitro and nylon bag techniques. Treatments included unprocessed vicia faba residues (control) and processed with water (2.5 lit/kg DM), calcium oxide (160 g/kg DM), hydrogen peroxide (57 ml/kg DM) and sodium hydroxide (50 g/kg DM). The chemical composition o...
Introduction: High-rate frying with oil is a cause of hydrolyzation, oxidation and polymerization of oil, thus making free radicals in the human body. These free radicals can lead to cancer, inflammatory diseases, atherosclerosis, aging and others. The aim of this study was to survey the peroxide value of edible oils used in confectionary, restaurants and sandwich shops in Gorgan in 2011. Met...
1. The velocity of decomposition of hydrogen peroxide by catalase as a function of (a) concentration of catalase, (b) concentration of hydrogen peroxide, (c) hydrogen ion concentration, (d) temperature has been studied in an attempt to correlate these variables as far as possible. It is concluded that the reaction involves primarily adsorption of hydrogen peroxide at the catalase surface. 2. Th...
Baeyer–Villiger oxidation can synthesize a series of esters or lactones that have essential application value but are difficult to be synthesized by other methods. Cycloketones oxidized using molecular oxygen, peroxy acids, hydrogen peroxide as an oxidant. Hydrogen is one the environmental oxidants. Because weak ability peroxide, Bronsted acids and Lewis used catalysts activate carbonyl ketones...
Hydrogen peroxide was produced by direct current electrolysis using two electrodes only, a carbon felt cathode and a dimensional stabilised anode (titanium coated with RuO2), without adding any chemical. The required oxygen was supplied by water oxidation and by transfer from the atmosphere. The intensity should be maintained under a maximum value to avoid peroxide reduction. High peroxide prod...
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...
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