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苹果削皮吃有什么利弊

2016-03-14 09:49 来源:互联网 

美国研究人员从实验鼠研究中可以发现,苹果皮含有的多种三萜系化合物物质能抑制癌细胞生长,其中包括肝癌细胞、结肠癌细胞以及乳腺癌细胞。此外,苹果皮的主要成分——角质是一种膳食纤维类成分,具有顺肠通便、调节控制血糖浓度、降血脂等一种或多种生理功能。姜微波实验室的分析也证实,苹果皮、特别是红苹果的果皮比果肉的抗氧化活性高很多倍。

苹果削皮
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为什么有人说苹果皮致癌?这种说法是否有何科学依据?削皮吃就一定安全吗?回答这几个问题,首先要了解一点水果栽培生产中的病虫害控制措施。

为了有效控制病虫害,世界各国农业生产中,仍然需要使用各种农药。很多农药不溶于水,但与蜡质有很高的亲和性。苹果表面最外层是蜡质层,农药吸附于蜡质中,能有效地保护果实,避免病虫、病菌侵染。因为脂溶性农药药效持久,不易被雨水冲掉,所以很多果农更愿意选择这类药剂。同时,这类药剂一般不易进入果实内部,因而也会减少残留总量。所以尽管苹果皮含有特殊的营养成分,但的确可能比果肉含有更多的农药。

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