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Metagenomic insights of fungal diversity of peanuts under storage conditions and mitigation of aflatoxigenic fungi through competitive exclusion and phytochemicals.
Anup, Kodape and Ankita, Lama and Vivek Babu, C. S. (2024) Metagenomic insights of fungal diversity of peanuts under storage conditions and mitigation of aflatoxigenic fungi through competitive exclusion and phytochemicals. Food Bioscience, 58. p. 103711.
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Abstract
The present study was conducted to understand the diversity of fungal communities in peanuts using metagenomic analysis. The culture-dependent diversity analysis revealed the occurrence of aflatoxigenic fungi, Aspergillus flavus (A. flavus), and Aspergillus parasiticus (A. parasiticus). Further, to mitigate aflatoxigenic fungi, a systemic deployment of essential oils (EOs) along with an investigation involved studying a competitive exclusion bioassay utilizing atoxigenic Aspergillus flavus as a biocontrol agent. Gas chromatography-mass spectrometry (GC-MS) analysis of the results identified the primary constituents as Cuminaldehyde (EO3), Monarda citriodora essential oil containing thymol (EO8), linalool (EO14), and Terpinen-4-ol (EO16). Subsequently, the inhibition of aflatoxigenic fungi was assessed using a fumigant bioassay accomplished with an effective concentration noted at a dose of 2.5 μL–10 μL/107 cm3. The prominent inhibition of aflatoxin by atoxigenic A. flavus in competitive exclusion assay under co-culture conditions with aflatoxigenic A. flavus and A. parasiticus has been noteworthy. Hence, aflatoxin mitigation using the following approaches could be eco-friendly for the storage of peanuts under postharvest conditions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Aflatoxin Peanuts Essential oils Metagenomics Aspergillus flavus Aspergillus parasiticus Biological control |
| Subjects: | 500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology > 04 Fungi 600 Technology > 08 Food technology > 22 Legumes-Pulses > 03 Peanut |
| Divisions: | Food Protectants and Infestation Control |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 06 Nov 2024 11:09 |
| Last Modified: | 06 Nov 2024 11:09 |
| URI: | http://ir.cftri.res.in/id/eprint/18404 |
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