Mechanisms of the inhibition of enzymatic hydrolysis of waste pulp fibers by calcium carbonate and the influence of nonionic surfactant for mitigation
作者: Byeong Cheol MinBandaru V. Ramarao
作者单位: 1State University of New York
刊名: Bioprocess and Biosystems Engineering, 2017, Vol.40 (6), pp.799-806
来源数据库: Springer Nature Journal
DOI: 10.1007/s00449-017-1745-7
关键词: Enzymatic hydrolysisWaste fibersCalcium carbonateCellulase adsorptionNon-ionic surfactantsInhibitors
原始语种摘要: Recycled paper mills produce large quantities of fibrous rejects and fines which are usually sent to landfills as solid waste. These cellulosic materials can be enzymatically hydrolyzed into sugars for the production of biofuels and biomaterials. Paper mill wastes also contain large amounts of calcium carbonate which inhibits cellulase activity. The calcium carbonate (30%, w/w) decreased 40–60% of sugar yield of unbleached softwood kraft pulp. The prime mechanisms for this are by pH variation, competitive and non-productive binding, and aggregation effect. Addition of acetic acid (pH adjustment) increased the sugar production from 19 to 22 g/L of paper mill waste fibers. Strong affinity of enzyme—calcium carbonate decreased free enzyme in solution and hindered sugar production....
全文获取路径: Springer Nature  (合作)
影响因子:1.869 (2012)

  • calcium 
  • waste 岩屑
  • carbonate 碳酸盐
  • surfactant 表面活性剂
  • nonionic 非离子式的
  • hydrolysis 水解
  • influence 影响
  • adsorption 吸附
  • enzyme 
  • sugar