There are several reports about the optimization of protease production, but only few have optimized the production of organic solvent tolerant keratinolytic proteases that show remarkable exploitation in the development of the non-polluting processes in biotechnological industries. The present study was carried with aim to optimize the production of a thermostable organic solvent tolerant kera...

Background; Feather waste is generated in large amounts as a by-product of commercial poultry processing. The main component of feather is keratin. The main purpose of this study was to identify Bacillus spp. (the keratinolytic bacteria) that are able to degrade the feather for producing keratin. Methods; Bacillus spp. Were isolated from the waste of poultries located in Miyaneh city. The bact...

Abstract Terminators serve as the regulatory role in gene transcription termination; however, few researches about terminator optimization have been conducted, which leads to lack of available and universal for expression regulation Bacillus . To solve this problem expand synthetic biology toolbox licheniformis , T1 endogenous α-amylase ( amyL ) was characterized research, with a termination ef...

This study was conducted to investigate the effects of different proteases alone or in combination on protein digestibility broilers. In vitro, properties four broilers, including acidic protease (AcP), alkaline (AlP), neutral (NeP) and keratinase (Ker), endogenous activity their common ingredients broiler diets were investigated using a gut-mimicking model. vivo, 640 1-day-old male broilers ra...