Hydrolytic enzymes production by Bacillus licheniformis growth on fermentation media formulated with sewage sludge
作者: Alberto Renato Inca-TorresAnabell Del Rocío Urbina-SalazarGonzalo Falcón-GarcíaPilar Carbonero-AguilarBruno Rodríguez MorgadoJuan ParradoJuan Bautista
刊名: Journal of Biotech Research, 2018(9)
来源数据库: Bio Tech System
原始语种摘要: In this work, the production of hydrolytic enzymes by Bacillus licheniformis grown in media formulated with sewage sludge as the main carbon and nitrogen source with induction by keratins has been studied. The three main types of enzymes of industrial interest produced were proteases, lipases and cellulases. The addition of an inductor, keratin in our case, improves the production of these enzymes to reach a productivity of 16.89 mU/mL· day, 0.25 mU/mL·day, and 0.51 mU/mL·day for proteases, lipases and cellulases, respectively. The secretion of proteins and enzymes into the fermentation media was studied by electrophoretic and proteomic methods, which revealed the presence of proteases, lipases, and cellulases in the fermentation media, among other excreted proteins. Our results show that...
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  • sewage 阴沟水
  • sludge 泥渣
  • fermentation 发酵
  • enzymes 酶类
  • nitrogen 
  • studied 学习
  • production 生产
  • media 中脉
  • growth 生长
  • inductor 感应体