Research on the effect of photoprotectants on photostabilization of rotenone

被引：23

作者：

Chen, Xiao-Jun ^{[1
]}

Xu, Han-Hong ^{[1
]}

Yang, Wen ^{[1
]}

Liu, Shun-Zi ^{[1
]}

机构：

[1] S China Agr Univ, Minist Educ, Key Lab Nat Pesticide & Chem Biol, Guangzhou 510642, Guangdong, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY | 2009年 / 95卷 / 02期

关键词：

Photostabilization; Rotenone; Photoprotectants; LIGHT ABSORBERS; PHOTODEGRADATION; AZADIRACHTIN; DEGRADATION; PESTICIDES; PLANT;

D O I：

10.1016/j.jphotobiol.2009.01.003

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

This study examined the photostabilization of rotenone when exposed to ultraviolet light (UV) in the presence of some photoprotectants. Rotenone with and without photo protectants in methanol were applied onto the surface of glass slides. The remaining concentration of rotenone was analyzed by HPLC at particular intervals. The dissipation half-life values for the degradation of rotenone under ultraviolet radiation were obtained by first-order kinetic equation. It indicated that the addition of UV531, UV326, Photo-stabilizer 770, Photo-stabilizer 622, Vitamin C, Antioxidant 168, Antioxidant 1010 and Antioxidant 1098 provided moderate degree of photostabilization of rotenone and that addition of UV-P provided the best photostabilization, which due to the competitive energy absorption of UV photons by the photoprotectants. The dissipation half-life values of rotenone after irradiation under UV suggested that the addition of UV-P (in 1:1 mol ratio) could provide better photostabilization of rotenone molecule. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：93 / 100

页数：8

共 43 条

[1] Effect of the epicuticular waxes of fruits and vegetables on the photodegradation of rotenone [J].