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VOL. 7, ISSUE 4 (2025)
Antifungal efficacy of Cymbopogon citratus L. essential oil against storage mycoflora isolated from spice cumin
Authors
Madri Singh, Sanyogita Kumari, Ashok Kumar
Abstract
The study deals with the bioactive efficacy of
Cymbopogon citratus L. essential oil (CCEO), against some storage fungi
contaminating stored spice seeds of cumin (Cuminum cyminum L.). The
average pH and percent moisture content of collected stored seeds of cumin were
ranged as 5.31-5.60 and 13.33-14.38% respectively. Stored seeds of cumin were
found associated with various storage moulds. During mycological screening,
total of 654 fungal isolates were recovered from three different stored
samples. The percent occurrence frequency of sample 3 was found highest
(36.08%) whereas, sample 1 exhibited the lowest (30.12%). The highest
cumulative percent relative density was recorded in Cladosporium sp.
(21.86%) followed by Aspergillus niger (17.80%) and Aspergillus
flavus (13.14%) while lowest relative density was found in Aspergillius
nidulans (1.07%) followed by Aspergillius candidus (1.37%) and Aspergillus
terreus (2.14%). The minimum inhibitory concentration (MIC) of CCEO against
Aspergillus flavus was recorded at 0.6 mgml-1. The CCEO also
exhibited potent antiaflatoxigenic efficacy and completely checked the
aflatoxin B1 production at 0.3 mgml-1. The CCEO also showed broad
spectrum fungitoxicity against 10 storage fungi recovered during mycological
analysis of cumin seeds. The chemotype of CCEO was determined by GC/GC-MS
analysis which showed 23 constituents in which E-citral was found to be the
major component (60.98%). The prospects of exploitation of CCEO as acceptable
plant-based preservative in qualitative as well as quantitative control of
biodeterioration of stored cumin have been discussed.
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Pages:30-36
How to cite this article:
Madri Singh, Sanyogita Kumari, Ashok Kumar "Antifungal efficacy of <i>Cymbopogon citratus L. </i>essential oil against storage mycoflora isolated from spice cumin". International Journal of Biotechnology and Microbiology, Vol 7, Issue 4, 2025, Pages 30-36
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