Bacteriocins, including nisin, pediocin PO2, brevicin 286, and piscicolin 126, were extracted from fermentation media by adsorption onto Micro-Cel (a food-grade diatomite calcium silicate anticaking agent) and subsequent desorption. The optimal conditions for desorption of piscicolin 126 were determined and applied to other bacteriocins, and the relative purities of the desorbed preparations we...

The objective of this research was to evaluate the effect sperm on chromatin stability and its relationship with membrane integrity structural – physiological rate fertilization female sheep. Ejaculates (2 × 109 sperm·mL-1) 70% motility were collected using an artificial vagina (n=5, 2 years old. For this, each ram served fifteen sheep (n=75), generating thus five different Groups (A, B, C, D, ...

Many properties of chemicals depend on their streochemistry. Among these, the effects of streoisomerism on percutaneous absorption of drugs, which is subject of the present investigation, is not well studied yet. In this study, tretinoin (TT) and isotretinoin (ITT) (geometric isomers) were chosen and their permeations (alone or in the presence of each other) through enhancer-treated excised ...

In the present  paper Electrical Conductivity (EC) of Colloidal Gas Aphron (CGA) suspensions was measured for anionic and cationic surfactants (Sodium Dodecyl Sulfate (SDS) and Tetradecyl Trimethyl Ammonium Bromide (TTAB)). Experiments were made for different concentrations of SDS (6, 8.1, 10 mM) and TTAB (2, 3.51, 5 mM). CGA drainage behavior was observed and measured using 1 liter measuri...

Glycosylation is an essential posttranslational modification observed in the living proteome. profiles glycoproteins can change commonly diseases such as cancer. Identifying these changes crucial discovering new biomarkers for early diagnosis of One main steps N-glycan analysis to release N-glycans from by specific enzymes. The study compares common denaturing agent combinations used methods. I...

Ion flotation is an efficient separation technique for the recovery of metal ions from dilute aqueous solutions. Provided that both collected and surfactant are recovered foam phase, it could be considered as alternative to ion exchange, adsorption or solvent extraction in hydrometallurgy. However, most studies focusing only on by neglect development a closed-loop flow sheet with regeneration c...

Chitin is the next most abundant natural polysaccharide after cellulose. It can be found in shells of shrimps, crabs and crayfish, which are waste products in food industry. Chitosan is becoming popular in an increasing number of industrial applications due to its availability, low cost and biodegradability. Many of these properties depend on its ability to interact with anionic surface active ...

BACKGROUND AND OBJECTIVES Sodium Dodecyl Sulfate (SDS) is one of the most widely used anionic detergents. The present study deals with isolation and identification of SDS-degrading bacteria from a detergent contaminated pond situated in Varanasi city, India. MATERIALS AND METHODS Employing enrichment technique in minimal medium (PBM), SDS-degrading bacteria were isolated from pond water sampl...

An alkaline xylanase secreted by Paenibacillus macquariensis RC 1819 has been purified using ammonium sulfate fractionation, ion exchange chromatography using DEAE-cellulose and gel filtration chromatography over Sephadex G-200 and Sephadex G-100. The purified enzyme had the specific activity, 25.2 units/mg protein with birchwood xylan as a substrate. The purified enzyme showed a single protein...

this study was conducted to investigate the effects of doses of 25, 50 and 75 kgy of gamma ray (gr) and electron beam (eb) ionizing radiations on ruminal disappearance of amino acids (aas) and protein subunits of canola meal (cm). the nylon bag technique was used for degradability trial. three ruminally fistulated taleshi bulls were used for this aim. the disappearance trends of protein subunit...