Volume 3 Number 1 (Jan. 2013)
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IJBBB 2013 Vol.3(1): 27-32 ISSN: 2010-3638
DOI: 10.7763/IJBBB.2013.V3.157

Inhibitory Activity of Bacillus subtilis BCC 6327 Metabolites against Growth of Aflatoxigenic Fungi Isolated from Bird Chili Powder

Rattanaporn Thakaew and Hataichanoke Niamsup

Abstract—The bird chili powder (Capsicum frutescens Linn.) was a source of aflatoxigenic fungus which was identified as Aspergillus flavus. The antagonist Bacillus subtilis BCC 6327 was shown to inhibit the growth and spore germination of the isolated aflatoxigenic fungus from bird chili powder. All the cell free supernatant from 12, 24 and 36 h of incubation could inhibit the growth and mycelium production with inhibition percentages of 92.1, 89.6 and 90.1%, respectively. Growth of aflatoxigenic fungi was inversely correlated with enzyme productions from B. subtilis. Productions of protease, chitinase and β-1,3-glucanase and the released sugars (total reducing sugar, glucose and N-acetylglucosamine) were enhanced by the dried fungal mycelia. B. subtilis culture filtrates, possessing protease, chitinase and β-1, 3-glucanase, were capable of hydrolyzing dried mycelia of the isolated aflatoxigenic fungi from bird chili powder.

Index Terms—Terms—Bird chili powder, Capsicum frutescens., aflatoxigenic fungi, Bacillus subtilis, Aspergillus, protease, chitinase and β-1,3-glucanase

R. Thakaew is with the Graduate School in Biotechnology program, Center of Excellence for Innovation in Chemistry and Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand (e-mail: plaboo_nii@hotmail.com).
H. Niamsup is with Center of Excellence for Innovation in Chemistry and Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand (e-mail: hataichanoke.n@cmu.ac.th)

Cite: Rattanaporn Thakaew and Hataichanoke Niamsup, "Inhibitory Activity of Bacillus subtilis BCC 6327 Metabolites against Growth of Aflatoxigenic Fungi Isolated from Bird Chili Powder," International Journal of Bioscience, Biochemistry and Bioinformatics vol. 3, no. 1, pp.  27-32, 2013.

General Information

ISSN: 2010-3638
Frequency: Bimonthly (2011-2015); Quarterly (Since 2016)
DOI: 10.17706/IJBBB
Editor-in-Chief: Prof. Ebtisam Heikal 
Abstracting/ Indexing: Electronic Journals Library, Chemical Abstracts Services (CAS), Engineering & Technology Digital Library, Google Scholar, and ProQuest.
E-mail: ijbbb@iap.org
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