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Efficacy of Ocimum tenuiflorum essential oil as grain protectant against coleopteran beetle, infesting stored pulses.
Bhavya, M. L. and Obulaxmi, S. and Sumithra Devi, S. (2021) Efficacy of Ocimum tenuiflorum essential oil as grain protectant against coleopteran beetle, infesting stored pulses. Journal of Food Science and Technology, 58 (4). pp. 1611-1616. ISSN 0022-1155
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Abstract
In the present investigation, essential oil (EO) of Ocimum tenuiflorum and its principal constituent (eugenol) was evaluated for its toxicity and mode of action against Callosobruchus maculatus. Furthermore, fumigant toxicity and germination studies on the application of O. tenuiflorum EO and eugenol against C. maculatus on different pulses was also studied. Fumigant activity studies revealed that EO toxicity was significantly (p \0.05) influenced by concentration and exposure time. In fumigant toxicity assay without food, O. tenuiflorum EO and eugenol showed LC50 value of 278.6 and 256.5 lL/L air, respectively, at one hour exposure. Further, O. tenuiflorum EO displayed fumigant toxicity via inhibiting acetylcholinesterase activity. Pulses treated with O. tenuiflorum EO showed 70% of C. maculatus mortality at 250 lL/L air concentration after 24 h. Furthermore, these treatments didn’t affect the seed viability of the pulses tested. Hence, the application of O. tenuiflorum EO has potential scope as a botanical insecticide.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Acetylcholinesterase activity Biopesticide Bruchid Callosobruchus maculatus Leguminous seeds Germination |
| Subjects: | 600 Technology > 03 Agriculture > 05 Insect/Pest Control 600 Technology > 09 Industrial oils, fats, waxes, gases > 03 Essential oils |
| Divisions: | Food Protectants and Infestation Control |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 04 Dec 2020 06:36 |
| Last Modified: | 29 Nov 2021 05:46 |
| URI: | http://ir.cftri.res.in/id/eprint/14694 |
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