INHIBITION OF AFLATOXIN PRODUCTION AND GROWTH OF Aspergillus flavus BY CITRONELLA OIL

Dusanee Thanaboripat (1), Narumon Mongkontanawut(1), Yaowapa Suvathi (2) and Vararat Ruangrattanamatee (3)

(1) Department of Applied Biology, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
(2) Research and Development Institute, Government Pharmaceutical Organization, Bangkok 10400, Thailand
(3) Department of Applied Statistics, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand

E-mail: ktdusane@kmitl.ac.th

ABSTRACT

The activity of citronella oil on aflatoxin production and the growth of Aspergillus flavus was studied. Aspergillus flavus IMI 242684 was grown on PDA and maize grain for 28 days. It was found that the fungal growth on PDA was inhibited by citronella oil at 0.2% (v/v) whereas the growth, aflatoxin production and spore production in maize grain were inhibited at 1.0% or more. The growths of A. flavus M 113, A. flavus S 156 on PDA were inhibited by citronella oil at 0.4 % whereas the growth of A. parasiticus IMI 10256 was inhibited at 0.2%.

Keywords: aflatoxin, herb, citronella oil, Aspergillus flavus, Aspergillus parasiticus, aflatoxin producing fungi
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