Preparation and performance of insect virus microcapsules
نویسندگان
چکیده
Abstract Background Biological pesticides, especially baculovirus, often lose their activity under the influence of external light, temperature, and other changes. This limited application them. The present study was aimed to prolong biological ensure efficacy a pesticide using microencapsulation technology. Results In this study, gelatin/carboxymethylcellulose (CMC)- Spodoptera litura nucleopolyhedrovirus microcapsules were prepared. morphological characteristics, apparent morphology, embedding rate, virus loading, particle size, laboratory virulence, UV resistance microencapsulated virus, tested. best conditions for preparing gelatin /CMC- S. include gelatin/CMC ratio 9:1, wall material concentration 1%, core material/wall ration 1:2, re-condensation pH 4.67, curing time 1 h. prepared exhibited good appearance spherical shapes with an average size 13 μm, rate 62.53%, drug loading 43.87%. virulence test showed that lost by 2.21 times its initial than untreated virus. After being treated field exposure, shell microcapsule can better protect in wild environment. Conclusion Microencapsulation improves tolerance nuclear polyhedrosis ultraviolet radiation. These results will provide ideas research stable efficient baculovirus preparations further promote promotion environmental friendly pesticides.
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ژورنال
عنوان ژورنال: Egyptian Journal of Biological Pest Control
سال: 2021
ISSN: ['2536-9342', '1110-1768']
DOI: https://doi.org/10.1186/s41938-021-00449-8