Abstract：
:A commercial cellulase was first assessed to be effective in hydrolyzing glycosyl at the C-3 and C-26 positions in steroidal saponins from yellow ginger (Dioscorea zingiberensis C. H. Wright) to diosgenin, a very important chemical in the pharmaceutical industry. The effect of different parameters on enzyme hydrolysis was further investigated by systematically varying them. The highest yield was achieved when the hydrolysis ran at 55°C and pH 5.0 with an enzyme to substrate ratio of 15 × 10(3) U/g. The biotransformed products identified using TLC and HPLC confirmed that the cellulase was capable of releasing diosgenin from steroidal saponins. Moreover, the biotransformation process was explored by LC-MS and LC-MS/MS analysis. Enzymatic hydrolysis together with 40 % of the original sulphuric acid used increased the diosgenin yield by 15.4 ± 2.7% than traditional method. Therefore, the commercial cellulase may serve as a promising tool for industrial diosgenin production and for further use in saponin modification.
journal_name
World J Microbiol Biotechnoljournal_title
World journal of microbiology & biotechnologyauthors
Liu W,Huang W,Sun W,Zhu Y,Ni Jdoi
10.1007/s11274-009-0285-ysubject
Has Abstractpub_date
2010-07-01 00:00:00pages
1171-80issue
7eissn
0959-3993issn
1573-0972journal_volume
26pub_type
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journal_title：World journal of microbiology & biotechnology
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更新日期：1992-11-01 00:00:00
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更新日期：2015-03-01 00:00:00
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journal_title：World journal of microbiology & biotechnology
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journal_title：World journal of microbiology & biotechnology
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journal_title：World journal of microbiology & biotechnology
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journal_title：World journal of microbiology & biotechnology
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journal_title：World journal of microbiology & biotechnology
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journal_title：World journal of microbiology & biotechnology
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journal_title：World journal of microbiology & biotechnology
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