USE OF SURFACTANTS IN ENZYMATIC HYDROLYSIS OF RICE STRAW AND LACTIC ACID PRODUCTION FROM RICE STRAW BY SIMULTANEOUS SACCHARIFICATION AND FERMENTATION
作者： Qingfu Cui , Benkun Qi , Na Liu , Shichun Peng , Risheng Yao
DOI: 10.15376/BIORES.2.3.389-398
关键词:
摘要: Rice straw (RS) is one of the most abundant lignocellulosic waste by-product worldwide and provides an alternative substrate to produce useful chemicals such as bioethanol lactic acid. However, higher enzyme loading are needed obtain a product yield, which makes large-scale utilization economically difficult. Addition non-ionic surfactants poly(ethylene glycol) (PEG) enzymatic hydrolysis lignocellulosics has been found increase conversion cellulose into fermentable sugars. We have that adding 0.2g g-1 Tween 80 PEG 6000 increased sugar yield by 22% 12% when at 10FPU 24h, respectively. behaved better than PEG6000 different concentration, temperature were investigated. opportunity reduce dosage while still remain same extent hydrolysis. also investigated effect on simultaneous saccharification fermentation pretreated RS Results showed addition 0.7g L-1 improved acid production 24% compared reference without 72h.
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