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Novel isolates for biological detoxification of lignocellulosic hydrolysate

文献类型:期刊论文

作者Hou-Rui, Zhang1; Xiang-Xiang, Qin1; Silva, Silvio S.2; Sarrouh, Boutros F.2; Ai-Hua, Cai1; Yu-Heng, Zhou1; Ke, Jin1; Qiu, Xiang3
刊名Applied biochemistry and biotechnology
出版日期2009-02-01
卷号152期号:2页码:199-212
关键词Hemicellulosic hydrolysate Toxic compounds Biodetoxification Issatchenkia orientalis (s-7) Issatchenkia occidentalis (lj-3) Xylitol
ISSN号0273-2289
DOI10.1007/s12010-008-8249-5
通讯作者Hou-rui, zhang(zh-hr@hotmail.com)
英文摘要In this paper, two new strians, issatchenkia occidentalis (lj-3, cctcc m 2006097) and issatchenkia orienalis (s-7, cctcc m 2006098), isolated from different environments on solid media, were used in the detoxification process of the hemicellulosic hydrolysate of sugarcane bagasse. high-pressure liquid chromatography elution curve of uv-absorption compounds represented by acetic acid, furfural, and guaiacol (toxic compounds found in the hemicellulosic hydrolysate) showed that several chromatographic peaks were evidently diminished for the case of detoxified hydrolysate with isolate strains compared to the high peaks resulted for no detoxified hydrolysate. it was clear that these inhibitors were degraded by the two new isolates during their cultivation process. fermentation results for the biodetoxified hydrolysate showed an increase in xylitol productivity (q (p)) by 1.97 and 1.95 times (2.03 and 2.01 g l(-1) h(-1)) and in xylitol yield (y (p)) by 1.72 and 1.65 times (0.93 and 0.89 g xylitol per gram xylose) for hydrolysate treated with s-7 and lj-3, respectively, in comparison with no detoxified hydrolysate (1.03 g l(-1) h(-1) and 0.54 g xylitol per gram xylose). this present work demonstrated the importance of issatchenkia yeast in providing an effective biological detoxification approach to remove inhibitors and improve hydrolysate fermentability, leading to a high xylitol productivity and yield.
WOS关键词YEAST ISSATCHENKIA-ORIENTALIS ; HEMICELLULOSIC HYDROLYSATE ; FERMENTATIVE PROCESSES ; XYLITOL PRODUCTION ; IDENTIFICATION ; HYDROLYZATE ; DIVERGENCE ; INHIBITORS ; CONVERSION ; ETHANOL
WOS研究方向Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS类目Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
语种英语
WOS记录号WOS:000261954800003
出版者HUMANA PRESS INC
URI标识http://www.irgrid.ac.cn/handle/1471x/2399176
专题中国科学院大学
通讯作者Hou-Rui, Zhang
作者单位1.Chinese Acad Sci, Guangxi Inst Bot, Phytochem Dept, Guilin City 541006, Guangxi Zhuang, Peoples R China
2.Univ Sao Paulo, Engn Sch Lorena, Dept Biotechnol, Lorena, SP, Brazil
3.Gui Lin Med Coll, Dept Biotechnol, Guilin City 541004, Guangxi Zhuang, Peoples R China
推荐引用方式
GB/T 7714
Hou-Rui, Zhang,Xiang-Xiang, Qin,Silva, Silvio S.,et al. Novel isolates for biological detoxification of lignocellulosic hydrolysate[J]. Applied biochemistry and biotechnology,2009,152(2):199-212.
APA Hou-Rui, Zhang.,Xiang-Xiang, Qin.,Silva, Silvio S..,Sarrouh, Boutros F..,Ai-Hua, Cai.,...&Qiu, Xiang.(2009).Novel isolates for biological detoxification of lignocellulosic hydrolysate.Applied biochemistry and biotechnology,152(2),199-212.
MLA Hou-Rui, Zhang,et al."Novel isolates for biological detoxification of lignocellulosic hydrolysate".Applied biochemistry and biotechnology 152.2(2009):199-212.

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