Afterglow of atmospheric non-thermal plasma for disinfection of lentil seeds from Botrytis grey mould

Taheri, Saeedeh, Brodie, Graham Ian, Gupta, Dorin, and Jacob, Mohan V. (2020) Afterglow of atmospheric non-thermal plasma for disinfection of lentil seeds from Botrytis grey mould. Innovative Food Science & Emerging Technologies, 66. 102488.

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Abstract

Seed-borne fungal diseases of grains are a serious threat to grain crops' yield due to lack of either resistant crop varieties or dependence on fungicides. Therefore, there is a growing demand to develop sustainable technologies for crop protection. In the present study, an atmospheric microwave plasma was employed to eradicate Botrytis cinerea from lentil seeds. Argon, air and a combination of them were applied to create the plasma. There was a 41% reduction in the percentage of artificially contaminated seeds (with an initial contaminated seed percentage of 95.8%) after 100 s treatment of 2.5 g of lentil seeds with the afterglow of air plasma followed by 24-h holding time. A 32.3% reduction occurred when a 30% air/70% Argon was applied for 10 s and 60 min of holding time. The holding time of 24 h increased catalase activity from 0.8 to 1.1 mM H2O2 mg(-1) min(-1) that was an indicator of early plant immune system fortification. This also changed seeds' colour toward redness and yellowness. Conclusively, the afterglow of microwave plasma could be considered as a part of integrated disease management in lentil crops.

Item ID: 66048
Item Type: Article (Research - C1)
ISSN: 1466-8564
Keywords: Microwave, Atmospheric non-thermal plasma, Lentil, Seed-borne, Botrytis grey mould
Copyright Information: © 2020 Elsevier Ltd. All rights reserved.
Date Deposited: 13 Jan 2021 07:30
FoR Codes: 30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3004 Crop and pasture production > 300409 Crop and pasture protection (incl. pests, diseases and weeds) @ 50%
41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410404 Environmental management @ 50%
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