Document Detail

Behavior of glucosinolates in pickling cruciferous vegetables.
MedLine Citation:
PMID:  17147429     Owner:  NLM     Status:  MEDLINE    
Crucifer species, which include widely consumed vegetables, contain glucosinolates as secondary metabolites. Cruciferous vegetables are consumed in Japan in salt-preserved or pickled form as well as cooked and raw fresh vegetables. In this study, changes in contents of glucosinolates during the pickling process were investigated. 4-Methylthio-3-butenyl glucosinolate, a major glucosinolate in the root of Japanese radish, daikon (Raphanus sativus L.), was detected in pickled products with a short maturation period but not in those with a long maturation period. As a model pickling experiment, fresh watercress (Nasturtium officinale) and blanched watercress were soaked in 3% NaCl solution for 7 days. The results showed that the ratio of indole glucosinolates to total glucosinolates increased during the pickling process, whereas total glucosinolates decreased. Myrosinase digestion of glucosinolates in nozawana (Brassica rapa L.) indicated that indole glucosinolates, especially 4-methoxyglucobrassicin, were relatively resistant to the enzyme. The effect of pickling on glucosinolate content and the possible mechanism are discussed in view of degradation by myrosinase and synthetic reaction in response to salt stress or compression during the pickling process.
Chise Suzuki; Mayumi Ohnishi-Kameyama; Keisuke Sasaki; Takashi Murata; Mitsuru Yoshida
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  54     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2006-12-06     Completed Date:  2007-03-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  9430-6     Citation Subset:  IM    
National Institute of Livestock and Grassland Science, 2 Ikenodai, Tsukuba, Ibaraki, Japan.
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MeSH Terms
Brassica rapa / chemistry
Brassicaceae / chemistry*
Food Handling / methods*
Glucosinolates / analysis*,  metabolism
Glycoside Hydrolases / metabolism
Nasturtium / chemistry
Plant Roots / chemistry
Raphanus / chemistry
Reg. No./Substance:
0/Glucosinolates; EC 3.2.1.-/Glycoside Hydrolases; EC

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