E-resources
Peer reviewed
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Chen, Xue-fang; Zhang, Li-quan; Xu, Wen-ping; Wang, Can; Li, Hai-long; Xiong, Lian; Zhang, Hai-rong; Chen, Xin-de
Bioresource technology, December 2020, 2020-12-00, 20201201, Volume: 318Journal Article
Display omitted •The preparation process of hydrophilic-hydrophobic PAM/PS IPNs was optimized.•PAM/PS IPNs was used to remove fermentation inhibitors from SCBH.•PAM/PS IPNs had excellent adsorption performance towards fermentation inhibitors.•PAM/PS IPNs can be regenerated easily and reused stably. Economical removal of fermentation inhibitors from lignocellulosic hydrolysate plays a considerable role in bioconversion of lignocellulose biomass. In this work, the textural properties of polyacrylamide/polystyrene interpenetrating polymer networks (PAM/PS IPNs) on adsorption of fermentation inhibitors from sugarcane bagasse hydrolysate (SCBH) were investigated for the first time. The results showed that, the specific surface area, pore diameter and surface polarity had important influence on its adsorption performance towards sugars, organic acids, furans and acid-soluble lignin. The PAM/PS IPNs under the optimal copolymerization situation achieved the high selectivity coefficients of 4.07, 14.9, 21.2 and 25.8 with respective to levulinic acid, furfural, hydroxymethylfurfural (HMF) and acid-soluble lignin, and had a low total sugar loss of 2.09%. Overall, this research puts forward a design and synthetic strategy for adsorbent to remove fermentation inhibitors from lignocellulosic hydrolysate.
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