Butanol production from agricultural residues:: Impact of degradation products on Clostridium beijerinckii growth and butanol fermentation
Butanol production from agricultural residues:: Impact of degradation products on Clostridium beijerinckii growth and butanol fermentation
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DOI：
10.1002/bit.21373
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发表时间：
2007-08-15
影响因子：
3.8
通讯作者：
Blaschek, Hans P.
中科院分区：
文献类型：
--
作者：
Ezeji, Thaddeus;Qureshi, Nasib;Blaschek, Hans P.
在富含纤维的农业生物质的预处理和水解过程中，产生化合物如盐、糠醛、羟甲基糠醛（HMF）、乙酸、阿魏酸、葡糖醛酸、对香豆酸和酚类化合物。拜氏梭菌BA 101可以利用木质纤维素中存在的单独的糖[例如，玉米纤维、干酒糟可溶物（DDGS）等]水解产物，如纤维二糖、葡萄糖、甘露糖、阿拉伯糖和木糖。在这些研究中，我们研究了一些与C。beijerinckii BA 101生长和丙酮-丁醇-乙醇（ABE）生产。当发酵培养基中添加0.3g/L的对香豆酸和阿魏酸时，拜氏梭菌BA 101的生长和ABE产量显著下降。糠醛和HMF对C. beijerinckii BA 101;相反，它们对微生物的生长和ABE的产生具有刺激作用。
During pretreatment and hydrolysis of fiber-rich agricultural biomass, compounds such as salts, furfural, hydroxymethyl furfural (HMF), acetic, ferulic, glucuronic, p-coumaric acids, and phenolic compounds are produced. Clostridium beijerinckii BA101 can utilize the individual sugars present in lignocellulosic [e.g., corn fiber, distillers dry grain solubles (DDGS), etc] hydrolysates such as cellobiose, glucose, mannose, arabinose, and xylose. In these studies we investigated the effect of some of the lignocellulosic hydrolysate inhibitors associated with C. beijerinckii BA101 growth and acetone-butanol-ethanol, (ABE) production. When 0.3 g/L p-coumaric and ferulic acids were introduced into the fermentation medium, growth and ABE production by C beijerinckii BA101 decreased significantly. Furfural and HMF are not inhibitory to C. beijerinckii BA101; rather they have stimulatory effect on the growth of the microorganism and ABE production.