gem-dihydroperoxides as nearly stable peroxidic derivatives of aldehydes and ketones are known important intermediates in synthesis of anti-malaria drugs. also, because containing high concentration of peroxidic oxygen, recently, some of these compounds have been used as solid, efficient and powerful oxidants in many oxidation organic reactions. generally, these compounds are synthesized via pe...

Nsogning Dongmo S., Womeni H.M., Tchouanguep Mbiapo F., Linder M., Fanni J., Zarnkow M., Becker T. (2014): Cooking and drying process optimisation of shea (Butyrospermum parkii) butter extraction. Czech J. Food Sci., 32: 578–584. Cooking and drying conditions of the shea butter extraction process were determined using a response surface methodology. The influence of cooking time, temperature, a...

introduction recently, considering the fact that access to high quality feed stuffs is limited, using agricultural by-products in animal nutrition has taken to consideration. effective use of these products as alternative energy source for ruminant feeding is important for economical and environmental reasons. major limitation for using agricultural by-products as ruminant feed stuffs is their ...

Abstract: Soybean oil is the second highest-produced vegetable in India. Due to high unsaturated fatty acid content, this highly susceptible oxidation. Even though branded oils are supposed adhere BIS standards, quality of vast unbranded segment requires monitoring. Furthermore, category, assessment required on end-user side because monitoring primarily done production side. Monitoring especial...

this study involved analyzing antioxidant properties of spices, namely clove (syzygium aromaticum linn.), cinnamon (cinnamomum verum, syn c. zeylanicum blume) and sumac (rhus coriaria l.) and exploring their efficacy in a food system. in the first part of the study, the antioxidant activity of water extract of spices treated at different temperatures were measured by three different methods nam...

The main objective of this work is to upgrade a diesel oil sample from Shiraz Oil Refining Co. (SORC) to reduce the sulfur content, as well as break the kinematic viscosity of the feedstock. Effects of several operating parameters including volume of hydrogen peroxide/acetic acid as an oxidant mixture, amounts of tetraoctylammonium bromide as a phase transfer agent (PTA) and phosphotungstic aci...

abstract in recent years some research results have appeared that exogenous salicylic acid provided significant mitigation effect against salinity induced injuries in plants. an experiment was conducted to investigate the effects of salt stress and salicylic acid on radish (raphanus sativus l.) plants. after appearing first leaves, plants were treated by salicylic acid (0.2 mm) for 3 days and n...

in concentration of hydrogen peroxide, first, the solution should be quite pure, and then, it concentrate with methods such as vacuum distillation and cooling crystallization, because impurities in the hydrogen peroxide solution in high concentrations are causing decomposition of this substance; that is very dangerous. the purpose of this article is separation of chromium and magnesium cations ...