原花青素
丹宁
化学
涩的
浆果
灌溉
作文(语言)
葡萄
园艺
花青素
缩合单宁
亏缺灌溉
儿茶素
口感
食品科学
多酚
植物
品味
农学
生物
灌溉管理
原材料
生物化学
有机化学
抗氧化剂
语言学
哲学
作者
Maria Kyraleou,Yorgos Kotseridis,Stéfanos Koundouras,Kléopatra Chira,Pierre‐Louis Teissèdre,Σταματίνα Καλλιθράκα
标识
DOI:10.1016/j.foodchem.2016.02.052
摘要
In this work, the effect of water availability on astringency of seed and skin extracts of Vitis vinifera cv. Syrah berries under the typical semiarid conditions of Greece was investigated. Moreover, astringency was assessed in relation to proanthocyanidin composition. For this purpose, three irrigation treatments were applied starting at berry set through harvest of 2011 and 2012: full irrigation (FI) at 100% of crop evapotranspiration, deficit irrigation (DI) at 50% and non-irrigated (NI). FI skin and seed extracts were perceived significantly more astringent than NI. Total phenol, total tannin, (+)-catechin, (−)-epicatechin and procyanidin C1 concentrations were positively correlated with astringency. Positive correlations were also obtained among astringency and average degree of polymerization and proportion of the extension units of shorter tannins while astringency of larger tannins was correlated with the proportion of terminal units. On the contrary, total anthocyanin and epigallocatechin contents were negatively correlated with astringency.
科研通智能强力驱动
Strongly Powered by AbleSci AI