Effect of some ultraviolet light absorbers on photo-stabilization of azadirachtin-A.

P T Deota, P R Upadhyay, K B Patel, K J Mehta, A K Varshney, M H Mehta
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引用次数: 6

Abstract

The effect of photo-stabilization of Azadirachtin-A (Aza-A) was examined when exposed to sunlight and ultraviolet light in the presence of four structurally different ultraviolet stabilizers namely 4-aminobenzoic acid, 2,4-dihydroxybenzophenone, 4,4'-dihydroxybenzophenone and phenyl salicylate. The percentages of Aza-A recovered at different time intervals from slides exposed to different light conditions with and without UV stabilizers as well as kinetic studies indicated that the addition of phenyl salicylate in methanolic solution of Aza-A (in 1:1 mole ratio) provides the best photo-stabilization of Aza-A molecule among the four UV stabilizers studied.

几种紫外光吸收剂对印楝素a光稳定性的影响。
研究了4-氨基苯甲酸、2,4-二羟基苯甲酮、4,4′-二羟基苯甲酮和水杨酸苯四种不同结构的紫外稳定剂对印楝素-a (azadirachin -a, Aza-A)的光稳定作用。在不同光照条件下,通过添加和不添加UV稳定剂的载玻片在不同时间间隔内恢复的Aza-A的百分比以及动力学研究表明,在四种UV稳定剂中,水杨酸苯酯(1:1摩尔比)在Aza-A的甲醇溶液中提供了最好的Aza-A分子光稳定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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