Food Science and Technology Deparment, Faculty of Veterinary Science, University of Murcia, Murcia, Spain.
J Agric Food Chem. 2012 Feb 8;60(5):1283-90. doi: 10.1021/jf204028d. Epub 2012 Jan 26.
Benzothiadiazole (BTH) and methyl jasmonate (MeJ) have been described as exogenous elicitors of some plant defense compounds, polyphenols among them. The objective of this study was to determine whether the application of BTH or MeJ to grape clusters at the beginning of the ripening process had any effect on the accumulation of the main flavonoid compounds in grapes (anthocyanins, flavonols, and flavanols) and the technological significance of these treatments in the resulting wines. The results obtained after a 2 year experiment indicated that both treatments increased the anthocyanin, flavonol, and proanthocyanidin content of grapes. The wines obtained from the treated grapes showed higher color intensity and total phenolic content than the wines made from control grapes. The exogenous application of these elicitors, as a complement to fungicide treatments, could be an interesting strategy for vine protection, increasing, at the same time, the phenolic content of the grapes and the resulting wines.
苯并噻二唑（BTH）和茉莉酸甲酯（MeJ）已被描述为一些植物防御化合物，包括多酚的外源诱导剂。本研究的目的是确定在成熟过程开始时将 BTH 或 MeJ 施用于葡萄串是否会对葡萄中主要类黄酮化合物（花青素、类黄酮和黄烷醇）的积累产生任何影响，以及这些处理对所得到的葡萄酒的技术意义。经过两年的实验，结果表明，这两种处理都增加了葡萄中的花青素、类黄酮和原花青素含量。与对照葡萄制成的葡萄酒相比，来自处理过的葡萄的葡萄酒表现出更高的颜色强度和总酚含量。这些诱导剂的外源应用，作为杀菌剂处理的补充，可能是一种保护葡萄藤的有趣策略，同时增加葡萄和所得到的葡萄酒的酚类含量。
