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三招防莲藕变黑

美食首页 来源:生命时报 2018年11月29日 09:36 A-A+

原标题:

  莲藕的酶促褐变是一个需要酶和氧气参与的化学过程,只要切断其中任一环节,就能减缓褐变。

  1.如果要蒸或煮莲藕,需要软糯的口感,可以先将莲藕用沸水汆烫70秒以上,使多酚氧化酶失去活性,从而阻止褐变。

  2.如果要炒或拌莲藕,需要脆爽的口感,不适合提前汆烫,可以将其放在清水中浸泡,隔绝空气,也能减缓氧化变黑。

  3.浸泡时在水中加点醋,能抑制多酚氧化酶的活性,延缓褐变,并能让莲藕更加脆爽。

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相关阅读 莲藕 | 褐变
我要纠错编辑:王天放 责任编辑:
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