Document Detail

Two-stage acid saccharification of fractionated Gelidium amansii minimizing the sugar decomposition.
MedLine Citation:
PMID:  21963246     Owner:  NLM     Status:  Publisher    
Two-stage acid hydrolysis was conducted on easy reacting cellulose and resistant reacting cellulose of fractionated Gelidium amansii (f-GA). Acid hydrolysis of f-GA was performed at between 170 and 200°C for a period of 0-5min, and an acid concentration of 2-5% (w/v, H(2)SO(4)) to determine the optimal conditions for acid hydrolysis. In the first stage of the acid hydrolysis, an optimum glucose yield of 33.7% was obtained at a reaction temperature of 190°C, an acid concentration of 3.0%, and a reaction time of 3min. In the second stage, a glucose yield of 34.2%, on the basis the amount of residual cellulose from the f-GA, was obtained at a temperature of 190°C, a sulfuric acid concentration of 4.0%, and a reaction time 3.7min. Finally, 68.58% of the cellulose derived from f-GA was converted into glucose through two-stage acid saccharification under aforementioned conditions.
Tae Su Jeong; Young Soo Kim; Kyeong Keun Oh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-10
Journal Detail:
Title:  Bioresource technology     Volume:  -     ISSN:  1873-2976     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-10-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Department of Applied Chemical Engineering, Dankook University, Cheonan, Chungnam 330-714, Republic of Korea.
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