Document Detail


Enzymatic Activity and Flavor Compound Production in Fermented Silver Carp Fish Paste Inoculated with Douchi Starter Culture.
MedLine Citation:
PMID:  22148721     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Silver carp fish pastes inoculated with or without a douchi starter culture containing live Aspergillus oryzae were fermented for 30 days to produce two different fermented products, designated as CulF and ConF, respectively. Protein degradation and flavor compound production during the course of fermentation were monitored. Proteolytic activity, generally higher in CulF than in ConF (P < 0.05) and dominated by acidic and serine proteases, declined to an overall minimum after 30 days. Myosin in the CulF and ConF extractives was completely degraded after 1 and 5 days, respectively. The content of free amino acids and low-molecular-weight (< 1.3 kDa) peptides rose rapidly in CulF and progressively in ConF (P < 0.05). Ethanol, silanediol, pyrazine, phenol, and formic acid were prevalent volatile compounds in CulF, while butanol, butanoic acid and acetic acid were abundant in ConF. Therefore, douchi-inoculated fermentation is an attractive process to produce savory fish pastes.
Authors:
Ladislaus Kasankala; Youling L Xiong; Jie Chen
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-12
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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