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Molecular and morphological identification of fungal species isolated from bealmijang meju.
MedLine Citation:
PMID:  22210613     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Bealmijang is a short-term aged paste made from meju, which is a brick of fermented soybeans and other ingredients. Different types of bealmijang are available depending on the geographic region or ingredients used. However, no study has clarified the microbial diversity of these types. We identified 17 and 14 fungal species from black soybean meju (BSM) and buckwheat meju (BWM), respectively, on the basis of morphology, culture characteristics, and internal transcribed spacer and beta-tubulin gene sequencing. In both meju, Aspergillus oryzae, Rhizopus oryzae, Penicillium polonicum, P. steckii, Cladosporium tenuissimum, C. cladosporioides, C. uredinicola, and yeast species Pichia burtonii were commonly found. Moreover, A. flavus, A. niger, P. crustosum, P. citrinum, Eurotium niveoglaucum, Absidia corymbifera, Setomelanomma holmii, Cladosporium spp. and unclassified species were identified from BSM. A. clavatus, Mucor circinelloides, M. racemosus, P. brevicompactum, Davidiella tassiana, and Cladosporium spp. were isolated from BWM. Fast growing Zygomycetous fungi is considered important for the early stage of meju fermentation, and A. oryae and A. niger might play a pivotal role in meju fermentation owing to their excellent enzyme productive activities. It is supposed that Penicillium sp. and Pichia burtonii could contribute to the flavor of the final food products. Identification of this fungal diversity will be useful for understanding the microbiota that participate in meju fermentation, and these fungal isolates can be utilized in the fermented foods and biotechnology industries.
Authors:
Ji Yeun Kim; Soo-Hwan Yeo; Sung Yeol Baek; Hye Sun Choi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of microbiology and biotechnology     Volume:  21     ISSN:  1738-8872     ISO Abbreviation:  J. Microbiol. Biotechnol.     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2012-01-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9431852     Medline TA:  J Microbiol Biotechnol     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  1270-9     Citation Subset:  IM    
Affiliation:
Department of Agro-food Resources, National Academy of Agricultural Science, RDA, Suwon 441-853, Korea.
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