Essential oils nanoformulations for stored-product pest control - Characterization and biological properties
详细信息 查看全文
- 作者：Jorge Omar Werdin Gonz谩lez ; Mar铆a Mercedes Guti茅rrez ; Adriana Alicia Ferrero ; Beatriz Fern谩ndez B
- 关键词：Nanoparticles ; Geranium and bergamot essential oils ; Release profiles ; Residual contact toxicity ; Nutritional physiology
- 刊名：Chemosphere
- 出版年：April, 2014
- 年：2014
- 卷：100
- 期：Complete
- 页码：130-138
- 全文大小：801 K
文摘
The lethal and sublethal activity of poly(ethylene glycol) (PEG) nanoparticles containing essential oils (EO), also the physicochemical characterization, were determined against Tribolium castaneum and Rhizopertha dominica. The 10% ratio EO-PEG nanoparticles showed an average diameter <235 nm (PDI < 0.280) and a loading efficacy >75%; after 6 month of storage their size did not change significantly and the amount of the EOs decreased 25%, approximately. Furthermore, during this period, no chemical derivates were observed. The EOs nanoparticles produced a notable increase of the residual contact toxicity apparently due to the slow and persistent release of the active terpenes. In addition, the nanoformulation enhanced the EO contact toxicity and altered the nutritional physiology of both stored product pest. The results indicated that these novel systems could be used in integrated pest management program for T. castaneum and R. dominica control.