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关于柿子的禁忌,都源自其富含的「鞣酸」。

徐小婷 cc9e1bc0-b761-1036-8d76-ef16cba5f6da | ‎ | 83 Views
1. 鞣酸是什么?
 
鞣酸,也叫丹宁,是柿子的涩味来源。除了柿子外,葡萄、山楂、石榴等水果,甚至是喝的茶水中都含有丰富的鞣酸。
 
在一定条件下,鞣酸能与蛋白质结合形成分子较大又不溶于水的沉淀物——「鞣酸蛋白」。当胃里的胃酸较多的情况下,鞣酸蛋白和食物中的果胶、纤维素等,把柿皮、柿核粘合在一起,在胃内迅速形成胃石,也叫「胃柿石」,并造成胃部不适。
 
这也是各种「柿子禁忌」的由来。
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