Efficient decolorization and deproteinization using uniform polymer microspheres in the succinic acid biorefinery from bio-waste cotton (Gossypium hirsutum L.) stalks

被引：19

作者：

Li, Qiang ^{[1
]}

Lei, Jiandu ^{[1
]}

Zhang, Rongyue ^{[1
]}

Li, Juan ^{[1
]}

Xing, Jianmin ^{[1
]}

Gao, Fei ^{[1
]}

Gong, Fangling ^{[1
]}

Yan, Xiaofeng ^{[1
]}

Wang, Dan ^{[2
]}

Su, Zhiguo ^{[1
]}

Ma, Guanghui ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China

[2] Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 135卷

基金：

美国国家科学基金会; 北京市自然科学基金;

关键词：

Polymer microspheres; Decolorization; Deproteinization; Succinic acid; Cotton stalk waste; DECOLORATION; SEPARATION;

D O I：

10.1016/j.biortech.2012.06.101

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Bio-waste cotton (Gossypium hirsutum L) stalks were converted into succinic acid by simultaneous saccharification and fermentation (SSF) using Actinobacillus succinogenes 130Z. After 54 h SSF at 40 degrees C and pH 7.0, the production of succinic acid was 63 g/L, with 1.17 g/L/h productivity and 64% conversion yield. After SSF, a simple method for the decolorization and deproteinization of crude SSF broth was developed through adsorption tests of polystyrene (PSt) microspheres. Under optimized conditions (5% PSt loading (w/v), pH 4.0, 60 degrees C and adsorption time of 40 min), the ratios of decolorization, deproteinization and succinic acid loss ratios were 96.6, 84.5 and 4.1%, respectively. The method developed will provide a potential approach for large-scale production of succinic acid from the biomass waste. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：604 / 609

页数：6

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