ISSN: 2375-3005
American Journal of Microbiology and Biotechnology  
Manuscript Information
 
 
Fungal and Aflatoxin Contamination in Soybean Paste Collected from Ban Village, Hung Yen Province, Vietnam
American Journal of Microbiology and Biotechnology
Vol.5 , No. 2, Publication Date: Jun. 1, 2018, Page: 25-28
426 Views Since June 1, 2018, 144 Downloads Since Jun. 1, 2018
 
 
Authors
 
[1]    

Doan Van Thuoc, Department of Biotechnology and Microbiology, Hanoi National University of Education, Hanoi, Vietnam.

[2]    

Dang Thi Xim, Department of Biotechnology and Microbiology, Hanoi National University of Education, Hanoi, Vietnam.

[3]    

Le Thi Viet Ha, Ngo Quyen High School, Hai Phong, Vietnam.

[4]    

Lai Duy Hung, Tran Phu High School, Hai Phong, Vietnam.

[5]    

Dang Huong Tra, Tran Phu High School, Hai Phong, Vietnam.

 
Abstract
 

Soybean paste is a fermented food produced in many countries around the world by various ways. In Vietnam, Aspergillus oryzae was used as a fermentation agent in soybean paste process. This study was carried out to investigate fungi and aflatoxin contaminations in soybean paste samples. Several fungal strains were isolated. Among them, eleven selected fungal isolates were identified by phenotypic characteristics and molecular analysis using the ITS (internal transcribed spacer) sequence and revealed eight species from two genera Aspergillus and Penicillium. The results also showed that aflatoxin was not detected in all soybean paste samples, however, one isolated strain of the A. oryzae/flavus group was found to be an aflatoxigenic fungal strain.


Keywords
 

Aflatoxin, Aspergillus, Fungi, Soybean Paste


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