Control of aflatoxin production of Aspergillus flavus by inhibitory action of antagonistic bacteria

Jung Il Cho, Kwang Won Hong, Kil Jin Kang

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Aflatoxin B1 is known as the most potent mycotoxin produced by several fungi. It has been demonstrated to be not only carcinogenic but teratogenic and mutagenic as well in humans. To prevent or inactivate aflatoxins, several chemical or physical methods were tested for ammoniation, using insecticides as an example, but they were unsuitable for food products. On the contrary, biological control by antagonistic microorganisms is an ideal method. In order to control aflatoxin B1 biologically, the antagonists 07, 63, 75, 74, and 61 were separated from various samples by using the antagonistic activity test. Among them, culture filtrate part A (non heat-treated) of 63 and 74 had a higher inhibitory activities compared to part B (heat-treated) on fungi growth. In fact, both showed aflatoxin B1 degradation activities. The degradation effects of antagonist 63 and 74 on aflatoxin B1 produced by Aspergillus flavus were shown to be 95% and 75%, respectively. Based on the morphological characteristics, 63 was deduced as an Azospirillum sp.

Original languageEnglish
Pages (from-to)154-160
Number of pages7
JournalJournal of Microbiology and Biotechnology
Volume10
Issue number2
StatePublished - Apr 2000

Keywords

  • Aflatoxin B
  • Antagonist
  • Aspergillus flavus
  • Biological control

Fingerprint

Dive into the research topics of 'Control of aflatoxin production of Aspergillus flavus by inhibitory action of antagonistic bacteria'. Together they form a unique fingerprint.

Cite this