Enzymatic Hydrolysis and Succinic Acid Fermentation from Steam-Exploded Corn Stalk at High Solid Concentration by Recombinant Escherichia coli
Enzymatic Hydrolysis and Succinic Acid Fermentation from Steam-Exploded Corn Stalk at High Solid Concentration by Recombinant Escherichia coli
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重组大肠杆菌高固体浓度汽爆玉米秆酶解及琥珀酸发酵
DOI:
10.1007/s12010-013-0319-7
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发表时间:
2013-06
影响因子:
3
通讯作者:
Dong, Yugang
中科院分区:
文献类型:
--
作者:
Wu, Dexi;Li, Qiang;Wang, Dan;Dong, Yugang
Steam-exploded corn stalk biomass was used as the substrate for succinic acid production via lignocellulose enzymatic hydrolysis and fermentation. Succinic acid fermentation was investigated in Escherichia coli strains overexpressing cyanobacterium Anabaena sp. 7120 ecaA gene encoding carbonic anhydrase (CA). For the washed steam-exploded corn stalk at 30 % substrate concentration, i.e., 30 % water-insoluble solids (WIS), enzymatic hydrolysis yielded 97.5 g/l glucose solution and a cellulose conversion of 73.6 %, thus a high succinic acid level up to 38.6 g/l. With the unwashed steam-exploded corn stalk, though a cellulose conversion of 71.2 % was obtained in hydrolysis at 30 % solid concentration (27.9 % WIS), its hydrolysate did not ferment at all, and the hydrolysate of 25 % solid loading containing 3.8 g/l acetic acid and 168.2 mg/l furfural exerted a strong inhibition on succinic acid production.
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影响因子:
1.6
作者:
朱明军;Ping LI;Xinfang GONG;Jufang WANG
通讯作者:
Jufang WANG
影响因子:
4.2
作者:
Kuang Zhang;M. Agrawal;Justin Harper;Rachel Chen;W. Koros
通讯作者:
Kuang Zhang;M. Agrawal;Justin Harper;Rachel Chen;W. Koros
影响因子:
3.8
作者:
Jorgensen, Henning;Vibe-Pedersen, Jakob;Felby, Claus
通讯作者:
Felby, Claus
影响因子:
3.4
作者:
Tengborg, C;Galbe, M;Zacchi, G
通讯作者:
Zacchi, G
影响因子:
4.1
作者:
Dan-qi Wang;Qiang Li;Wangliang Li;Qingfen Liu;J. Xing;Z. Su
通讯作者:
Dan-qi Wang;Qiang Li;Wangliang Li;Qingfen Liu;J. Xing;Z. Su