abstract: large quantities of beef and mutton tallow are available in iran every year. if these products are processed and formulated properly and scientifically, the need to import oils and fats in a substantial quantities might be reduced. the aim of this study is to fractionate beef tallow into different fractions and carry out physical and chemical tests on each isolated fraction. beef fat ...

Soap is sodium or potassium salt of fatty acid produced by saponification reaction using hydroxide. It used for cleaning, bathing, and washing. Soaps were from bleached palm oil (BPO) Moringa oleifera seed the cold process method with slight modification. The physicochemical properties (acid value, peroxide iodine value moisture content) determined it showed that values are within standard spec...

to develop a new more accurate spectrophotometric method for detecting monoamine oxidase inhibitors from plant extracts, a series of amine substrates were selected and their ability to be oxidized by monoamine oxidase was evaluated by the hplc method and a new substrate was used to develop a peroxidase-linked spectrophotometric assay. 4-(trifluoromethyl) benzylamine (11) was proved to be an exc...

the present work is carried out to study the antioxidant potential of ethanolic extract of alstonia scholaris linn. ( apocynaceae ) using various in vitro tests including 1,1-diphenyl-2-picryl-hydrazil (dpph . ) free radical scavenging, metal ion chelating, hydrogen peroxide scavenging, superoxide anion radical scavenging, and ferric thiocyanate reducing ability.   ethanolic extract of alstonia...

We found previously that stimulation of c-fos and c-myc mRNA expression are early events in hydrogen peroxide-induced growth in rat aortic smooth muscle (RASM) cells. In the present study, we investigated the role of phospholipase A2 (PLA2) and protein kinase C (PKC) in mediating hydrogen peroxide-induced c-fos mRNA expression in RASM cells. Mepacrine and p-bromophenacylbromide, potent inhibito...

the aim followed in the present study was to evaluate the antioxidant activity of individual vs. combined extracts of rosemary leaves and oak fruit to detect the possible interactions in their antioxidant activity following combination and in order to find a way to use oak fruit natural antioxidants as an available massive source in iran. towards this end, methanolic extracts of rosemary and oa...

Hydrogen peroxide induces oxidation and consequently inactivation of many protein tyrosine phosphatases. It was found that hydrogen peroxide, in the presence of carboxylic acids, was efficiently activated to form even more potent oxidant - peroxy acid. We have found that peroxytetradecanoic acid decreases the enzymatic activity of CD45 phosphatase significantly more than hydrogen peroxide. Our ...

The purpose of this work was to assess the quality of pacu (Piaractus mesopotamicus) and tambaqui (Colossoma macropomum) gutted and stored on ice for a period of 19 days. Color, texture, pH, acid value, peroxide value, thiobarbituric acid reactive substances, total volatile bases and counts of aerobic mesophilic heterotrophic and psychrotrophic bacteria assessments were performed in the meat of...

This report is based on the synthesis of thermoset resins from sunflower oil. Sunflower oil with an iodine value 120 g I / 100 containing 30 % oleic acid and 59 linoleic was epoxidized by reaction a peroxy (formed in-situ between hydrogen peroxide formic acid). The ratio ethylenic unsaturation to used 1:1.5:0.5. maximum conversion generated 82.45 for seven h epoxidation at 65 °C, oxirane oxygen...