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如何区分黑米和紫米

更新时间: 2020-09-16 00:00:00     

二者的共同点:黑米和紫米都含有丰富的膳食纤维。膳食纤维能够降低血液中胆固醇的含量,可以预防冠状动脉硬化引起的心脏病。

不同点:

紫米一般米粒细长,颗粒饱满均匀。外观色泽呈紫白色或紫白色夹小紫色块。用水洗涤水色呈深紫色偏黑。用手抓取易在手指中留有紫黑色。用指甲刮除米粒上的色块后米粒仍然呈紫白色。而黑米外观色泽光亮,黑色包裹整颗米粒。用指甲刮除色块后米粒色泽同大米。紫米会掉色,黑米不会。因为紫米外层的花青素易溶于水,一旦米粒吸水就会溶出来,紫米不宜用力搓洗,浸泡后的水随同紫米一起蒸煮食用,不要倒掉。

关键词: 如何 区分 黑米

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