鞣质可以分为两大类,一是水解类,一是缩合类。本次研究儿茶素类缩合鞣质与铝的作用。以连苯三酚和儿茶素作为代表,以紫外分光光度法和红外光谱法作研究表明:连苯三酚和邻苯二酚核多元酚都能与铝形成络合物,它是稳定的五员螯合环结构。如果同核苯环上有第三个羟基,则不参与络合。在儿茶素类鞣质—铝结合鞣时,在胶原分子之间可能产生交联或网状交联作用。 Tannins can be divided into two categories, one is hydrolyzed, the other is condensed. This study catechins condensation of tannin and aluminum role. With pyrogallol and catechin as representatives, UV spectrophotometry and infrared spectroscopy studies have shown that: pyrogallol and catechol nucleophilic polyphenols can form a complex with aluminum, it is stable Five chelation ring structure. If there is a third hydroxyl on the same nucleus, it is not involved in complexation. In the catechins tanning - aluminum tanning, the collagen molecules may have cross-linked or reticular crosslinking.