Effects of spice oil treatment of rice on moulding and mycotoxin contamination

Patkar, K. L. and Usha, C. M. and Shetty, H. S. and Paster, N. and Lacey, J. (1994) Effects of spice oil treatment of rice on moulding and mycotoxin contamination. Crop Protection, 13 (7). pp. 519-524.

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Official URL: https://doi.org/10.1016/0261-2194(94)90104-X


Moulding and mycotoxin production have been studied during storage of rice at 85 and 90% relative humidity (r.h.) following treatment with cinnamon and clove oils. The clove oil-treated rice was artificially inoculated with Aspergillus flavus. Aflatoxin B1 and ochratoxin A were determined by monoclonal antibody-based enzyme-linked immunosorbent assay. Both moulding and mycotoxin were inhibited by 9 mul cinnamon oil g-1 but, with smaller doses, fungi could be isolated during the early part of storage, but not subsequently. Thus, following treatment with 3 or 6 mul cinnamon oil g-1, fungi were isolated from direct plated grains after 30 days but not after 45 days. Fungi were also isolated from washings of grain up to 30 days after treatment with 3 or 6 mul g-1, although fewer than from untreated grain. Propagules could also be detected up to 15 days after treatment with 9 mul g-1. Clove oil was much less effective than cinnamon oil in preventing moulding. After treatment with 8 mul g-1, the proportion of seeds infected with fungi and numbers of propagules in washings decreased only after 60 days' storage and with 4 mul g-1 after 90 days at both relative humidities. However, aflatoxin contamination could not be detected 90, 60 and 60 days after treatment with, respectively, 2, 4 and 8 mul g-1 at 85% r.h., although ochratoxin A was present in all treatments. At 90% r.h. aflatoxin was absent only after 90 days from treatment with 4 and 8 mul g-1. No T2 toxin was detected.

Item Type: Article
Subjects: B Life Science > Botany
Divisions: Department of > Botany
Depositing User: Users 23 not found.
Date Deposited: 03 May 2021 07:56
Last Modified: 22 Jul 2022 05:49
URI: http://eprints.uni-mysore.ac.in/id/eprint/16219

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