Microencapsulation of a Colombian Spodoptera frugiperdaNucleopolyhedrovirus with Eudragit® S100 by spray drying

Brazilian Archives of Biology and Technology

Judith Elena Camacho Kurmen¹  Martha Isabel Gómez Alvarez¹  Laura Fernanda Villamizar Rivero¹ 

关键词: Baculovirus;    microencapsulation;    spray drying;    Eudragit® S100;    photostability;   

DOI  :  10.1590/S1516-8913201500453

来源: SciELO

【 摘 要 】

A Colombian Spodoptera frugiperda nucleopolyhedrovirus NPV003 with high potential for the development of an efficient biopesticide was microencapsulated by spray drying with a pH dependent polymer (Eudragit® S100). Conditions for microparticles production were standardized and microencapsulation process was validated. Physical properties, insecticide activity and photo-stability of microencapsulated virus were determined. The microparticles were spherical and irregular shaped, with sizes between 17.64 and 19.47 µm. Moisture content was 10.38 ± 0.87%; encapsulation efficiency 84.61± 13.09% and process yield was 91.20 ± 6.40%. Microencapsulation process did not affect viral insecticidal activity and provided efficient protection against UVB radiation. Results demonstrated technological feasibility of spray drying process to be used in formulating a biopesticide based on NPV003.

【 授权许可】

CC BY-NC   
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