Proteases are important industrial enzymes used in different areas of industry, mainly detergent, food and leather industries. In this study, novel alkaline protease-producing bacterium was isolated from Geinarje hot spring and examined for maximum protease activity to be utilized in washing-powder. The isolated bacterium was cultured in mineral salt medium including 2% Skim Milk. Proteolytic a...

human immunodeficiency virus type 1 (hiv-1) protease inhibitors comprise an important class of drugs used in hiv treatments. however, mutations of protease genes accelerated by low fidelity of reverse transcriptase yield drug resistant mutants of reduced affinities for the inhibitors. this problem is considered to be a serious barrier against hiv treatment for the foreseeable future. in this st...

Proteases are the most important group of the enzymes produced commercially and industrial purpose[1,2]. They have extensive applications in a range of industrial products and processes including detergents, food, pharmaceuticals and leather[3,4]. They are classified into various groups such as alkaline protease, serine protease, cystein protease, aspartic protease and metallo protease[5]. Prot...

Various studies have revealed the effects of vitamin B12, also named cobalamin, on semen quality and sperm physiology; however, these studies collectively are still unsummarized. Here, we systematically discuss and summarize the currently understood role of vitamin B12 on semen quality and sperm physiology. We searched the Web of Science, PubMed, and Scopus databases for only English language a...

Within McMurdo Sound’s annual sea ice, assimilation and concentrations of vitamin B12 (cobalamin), microbial community productivity, and biomass were examined among three 100-m2 quadrats where light penetration was manipulated by snow cover during austral summer. From late October through December, B12 concentrations (6–32 pmol L21) and assimilation rates (17–780 pmol m22 d21) in congelation ic...

Abstract The present study investigated the in situ production of vitamin B12 eleven cereal, pseudo-cereal and legume materials by fermentation with Propionibacterium freudenreichii DSM 20271 Levilactobacillus brevis (formerly Lactobacillus brevis) ATCC 14869. P. was used as producer L. selected to improve consistency microbial safety process. showed that more than 300 ng/g dw (daily requiremen...