Journal
MYCOPATHOLOGIA
Volume 170, Issue 3, Pages 195-202Publisher
SPRINGER
DOI: 10.1007/s11046-010-9311-8
Keywords
Asparagus racemosus; Aspergillus flavus; Aflatoxin B-1; Citrus reticulata; Cymbopogon citratus; Essential oils
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Funding
- Council of Scientific and Industrial Research (CSIR), New Delhi, India
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Essential oils extracted from Citrus reticulata and Cymbopogon citratus were tested in vitro against the toxigenic strain of Aspergillus flavus, isolated from the tuberous roots of Asparagus racemosus, used in preparation of herbal drugs. The essential oils completely inhibited the growth of A. flavus at 750 ppm and also exhibited a broad fungitoxic spectrum against nine additional fungi isolated from the roots. Citrus reticulata and Cymbopogon citratus essential oils completely inhibited aflatoxin B-1 production at 750 and 500 ppm, respectively. During in vivo investigation, the incidence of fungi and aflatoxin B-1 production decreased considerably in essential oil-treated root samples. The findings thus indicate possible exploitation of the essential oils as effective inhibitor of aflatoxin B-1 production and as post-harvest fungitoxicant of traditionally used plant origin for the control of storage fungi. These essential oils may be recommended as plant-based antifungals as well as aflatoxin B-1 suppressors in post-harvest processing of herbal samples.
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