Document Detail

Structural features and antioxidant activity of xylooligosaccharides enzymatically produced from sugarcane bagasse.
MedLine Citation:
PMID:  23131647     Owner:  NLM     Status:  Publisher    
Xylooligosaccharides (XOS) were prepared from xylan-rich hemicelluloses isolated by potassium hydroxide from sugarcane bagasse by hydrolysis with crude xylanase secreted by Pichia stipitis. Hydrolysis for 12h produced XOS with a maximum yield of 31.8%, equivalent to 5.29mgmL(-1) in the hydrolyzate. XOS with degrees of polymerization (DP) from 2 to 4 (xylobiose, xylotriose, and xylotetraose) were the major components in the hydrolysates, whereas the oligosaccharides with higher DP of 5-6 (xylopentaose and xylohexose) showed a constant low level. FT-IR and NMR ((1)H, (13)C, HSQC) demonstrated that XOS contained Araf and 4-O-Me-α-d-GlcpA residues. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay showed that the XOS exhibited concentration-dependent antioxidant activity. The results obtained indicate that the XOS produced from sugarcane bagasse can be employed in food-related applications.
Jing Bian; Feng Peng; Xiao-Peng Peng; Pai Peng; Feng Xu; Run-Cang Sun
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-6
Journal Detail:
Title:  Bioresource technology     Volume:  127C     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-11-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  236-241     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing 100083, China.
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