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红薯为什么越放越甜
更新时间: 2020-10-24 00:00:00  

在红薯的生长期间,温度比较高,红薯只积累淀粉,糖分很少,又因为水分较多,所以新收成的红薯甜味较淡。

储藏时间越久,由于红薯温度渐渐降低,淀粉逐渐水解为葡萄糖,同时消耗水分,水分和淀粉逐渐减少,葡萄糖含量增加,并且葡萄糖的甜度要高于淀粉,所以红薯越放越甜。

关键词: 红薯 为什么

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