Document Detail


Antioxidant activities of the water-soluble fraction in tempeh-like fermented soybean (GABA-tempeh).
MedLine Citation:
PMID:  17852485     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Tempeh is a traditional fermented soyfood native to Central Java, Indonesia; tempeh is prepared by salt-free aerobic fermentation using Rhizopus. Similar to miso, tempeh is also reported to be antioxygenic. In this study, we used a tempeh-like fermented soybean. First, soybean was incubated aerobically and then successively incubated anaerobically. Because the gamma-amino butyric acid (GABA) content was increased remarkably, we named this tempeh GABA-tempeh. The contents of other free amino acids and peptides were significantly higher in GABA-tempeh than in conventional tempeh. In this study, we compared the antioxidant activity of the water-soluble fraction in GABA-tempeh with that of soybean and conventional tempeh. The order of the antioxidant activity was shown as follows: GABA-tempeh > conventional tempeh > soybean. The components responsible for the antioxidant activity of GABA-tempeh were isoflavone aglycones, free amino acids, and peptides, which increased during aerobic and anaerobic fermentations.
Authors:
N Watanabe; K Fujimoto; H Aoki
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  International journal of food sciences and nutrition     Volume:  58     ISSN:  0963-7486     ISO Abbreviation:  Int J Food Sci Nutr     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2008-04-04     Completed Date:  2008-08-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9432922     Medline TA:  Int J Food Sci Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  577-87     Citation Subset:  IM    
Affiliation:
Department of Food Science and Nutrition, Faculty of Human Ecology, Showa Women's University, 1-7-57 Taishido, Setagaya, Tokyo, Japan. nakamich@swu.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Amino Acids / analysis
Antioxidants / analysis*
Fermentation
Food Technology / methods*
Indonesia
Isoflavones / analysis
Peptides / analysis
Rhizopus
Soy Foods / analysis*
Soybeans
gamma-Aminobutyric Acid / analysis
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Antioxidants; 0/Isoflavones; 0/Peptides; 56-12-2/gamma-Aminobutyric Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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