Mycotoxin contamination of spices - An update

Gerald C. Llewellyn, Richard L. Mooney, Thomas F. Cheatle, Brian Flannigan

    Research output: Contribution to journalArticle

    Abstract

    This update reviews studies since 1986 concerned with fungal infestation and mycotoxin occurrence in spices. Mycotoxins continue to pose a health concern via human exposure to contaminated spices. Reports indicated average mold counts in the assorted peppers examined to range from 200 to 3 400 000 mold spores g-1 substrate. Of 49% of A. flavus isolates found to be toxigenic, 79% produced aflatoxin B1 (AFB1). Another investigation found AFB1 levels in Coriander sativum in excess of 75 ppb. A sampling of commercial spices in Thailand revealed that 18% of samples of herbs and spices were contaminated with AFB1 (range 40-160 ppb). Among inhibitory 'essential oils' from several spices more resistant to mycotoxins, thymol isolated from thyme leaves was shown to inhibit both mycelial growth and aflatoxin production. Substantial reductions in fungal counts and near complete decomposition of AFB1 by irradiation have also been reported. Key future studies may explore irradiation methods, genetic engineering aimed at improving resistance to moulds, and limiting factors which allow mycotoxin production. © 1992.

    Original languageEnglish
    Pages (from-to)111-121
    Number of pages11
    JournalInternational Biodeterioration and Biodegradation
    Volume29
    Issue number2
    Publication statusPublished - 1992

    Fingerprint

    spices
    mycotoxins
    aflatoxin B1
    molds (fungi)
    irradiation
    Coriandrum sativum
    thyme
    thymol
    genetic engineering
    pepper
    aflatoxins
    plate count
    Thailand
    herbs
    essential oils
    spores
    sampling
    degradation
    leaves

    Cite this

    Llewellyn, G. C., Mooney, R. L., Cheatle, T. F., & Flannigan, B. (1992). Mycotoxin contamination of spices - An update. International Biodeterioration and Biodegradation, 29(2), 111-121.
    Llewellyn, Gerald C. ; Mooney, Richard L. ; Cheatle, Thomas F. ; Flannigan, Brian. / Mycotoxin contamination of spices - An update. In: International Biodeterioration and Biodegradation. 1992 ; Vol. 29, No. 2. pp. 111-121.
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    Llewellyn, GC, Mooney, RL, Cheatle, TF & Flannigan, B 1992, 'Mycotoxin contamination of spices - An update', International Biodeterioration and Biodegradation, vol. 29, no. 2, pp. 111-121.

    Mycotoxin contamination of spices - An update. / Llewellyn, Gerald C.; Mooney, Richard L.; Cheatle, Thomas F.; Flannigan, Brian.

    In: International Biodeterioration and Biodegradation, Vol. 29, No. 2, 1992, p. 111-121.

    Research output: Contribution to journalArticle

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    Llewellyn GC, Mooney RL, Cheatle TF, Flannigan B. Mycotoxin contamination of spices - An update. International Biodeterioration and Biodegradation. 1992;29(2):111-121.