Post‐harvest control of gray mold in table grapes using volatile sulfur compounds from Allium sativum

二烯丙基二硫化物 大蒜素 二烯丙基三硫化物 灰葡萄孢菌 三硫化二甲酯 化学 发芽 焦亚硫酸钠 食品科学 杀菌剂 分生孢子 园艺 菌丝体 硫黄 植物 生物化学 生物 有机化学 二甲基二硫化物 细胞凋亡
作者
Azucena Gándara‐Ledezma,Consuelo Corrales‐Maldonado,Marisela Rivera‐Domínguez,Miguel Ángel Martínez‐Téllez,Irasema Vargas‐Arispuro
出处
期刊:Journal of the Science of Food and Agriculture [Wiley]
卷期号:95 (3): 497-503 被引量:13
标识
DOI:10.1002/jsfa.6757
摘要

This study proposes the use of volatile sulfur compounds derived from garlic (Allium sativum) extracts applied via gas for the control of Botrytis cinerea, which causes post-harvest disease in table grapes. The effects of the volatile compounds emitted by garlic extract and sodium metabisulfite on conidia germination of B. cinerea were evaluated in vitro to assess their effectiveness at controlling grey mold on grapes stored at different temperatures.Diallyl disulfide, diallyl trisulfide and allicin were identified and quantified in a garlic extract using reversed-phase high-performance liquid chromatography. The volatile compounds emitted by the garlic extract in the form of allicin and diallyl trisulfide inhibited conidia germination of B. cinerea in vitro and significantly reduced the lesion diameters on stored grapes, which were similar to the effects of sodium metabisulfite, while the diallyl disulfide did not have any effect. The sulfhydryl groups of cysteine or reduced glutathione completely reversed the antifungal effect of these compounds.The antifungal activity that allicin and diallyl trisulfide, which are the volatile compounds emitted by a garlic extract, exerted on conidia germination of B. cinerea may be considered as an alternative for the control of gray mold in table grapes after harvest.
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