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第364章 做饭也要讲科学(2 / 2)

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老爷子哼了声,继续说:“苦瓜的苦味,其实主要来自于四种物质,分别是糖甙、野黄瓜汁酶、奎宁和苦瓜甙。

其中,奎宁与苦瓜甙的含量微乎其微,虽然有苦味,但并不重,同时也太过微量,在这种量级下对人体是相当有利的,如果不是追求完全除掉苦味,应该尽量保留。

而糖甙和野黄瓜汁酶,则是苦瓜中苦味的主要来源,而且,它们二者任意拉一样出来,都没有特别的味道,非得两者结合,互相反应,才会让人觉得苦。就像全熟的苦瓜,彻底成熟后不再含野黄瓜汁酶,吃着就非但不苦,反而还有点甜。

所以去除苦瓜的苦味,重中之重就是糖甙和野黄瓜汁酶。这两种物质,主要都存在于苦瓜内的籽和白膜之中,所以切苦瓜的时候,这两个一定要刮干净,不能留下半点,否则怎么去都是白搭。

另外,糖甙易溶于水,野黄瓜汁酶则性状不稳定容易被破坏,所以就三种常见的处理思路,泡水,盐渍或者焯水,各有优缺点。

其中,泡水耗时最长,至少要浸泡半小时以上,优点是苦瓜甙和奎宁能最大程度保留,营养价值最高,但缺点在于糖甙和野黄瓜汁酶残留也最多,苦味无法完全去干净;

焯水耗时最短,水开后下黄瓜二三十秒,至多不超过一分钟就行,缺点是焯水时间短,野黄瓜汁酶无法完全破坏掉,如果延长时间,则苦瓜不脆,破坏口感;

盐渍则能最大程度去除糖甙,利用盐的高渗透压,能把苦瓜本身的汁水置换出来,藏在瓜肉深处的糖甙也就无所遁形了,同时耗费的时间也不会特别长,但缺点是容易把苦瓜甙和奎宁一块置换出来洗掉,造成营养流失。

而以上三种方法,都可以搭配冰镇,进一步降低残存野黄瓜汁酶的活性,把苦味降到最低,并最大程度保留苦瓜的翠绿和生脆的口感,冰镇没什么副作用,只要别太过就行。”

齐禹眨巴眨巴眼睛。

这么一通长篇大论,把他给听呆了去。

倒不是原理有多么复杂,恰恰相反,原理简单得很,一说就懂,他呆住是因为这番话是从齐老爷子嘴里吐出来的……

老爷子讲科学,咋听咋违和……

咳咳咳,这么想有点不太尊敬了,搞得齐老爷子是个文盲似的。

其实恰相反,老爷子虽然没接受过系统的教育,只是当年学厨的时候在师傅的支持下顺便学了字,但这么多年来,一直信奉活到老学到老,从未放弃过学习,也正因此,在近乎闭门造车的情况下琢磨了几十年,齐老爷子的厨艺仍能不停进步,最终屹立于巅峰。

老爷子确实不太看得上普通的大学生,但仅仅只是看不上不学无术混日子的,眼高手低的以及学成书呆子的大学生,但绝不是学习无用论的拥趸。

甩掉心底乱七八糟的念头,齐禹接话:“但哪怕是用盐来腌渍,都不能完全去掉苦味吧?”

“当然,否则我还往里加那么多东西干什么?”齐老爷子斜他一眼:“胡萝卜里的胡萝卜素和柠檬中的柠檬酸,都能破坏野黄瓜汁酶的结构,进一步抑制它的活性。

茶叶里的茶多酚和鞣酸与蛋清共同作用,则能在味蕾上占位包裹,形成一层薄膜,阻碍味蕾捕捉并识别到苦味,再有麦芽糖和蜂蜜提供甜味,以甜压苦,你自然就一点苦味都尝不出来了。”

听到这里,齐禹终于恍然大明白,用力点了点头:“原来如此,我完全懂了……既然这样,那做菜的时候……”

齐禹一撅腚老爷子就晓得他要放什么屁,当即斜了他一眼:“呵,你在想屁吃,这套法子仅仅只局限于榨汁,用在炒菜上根本没这效果。”

齐禹一愣:“为什么?”

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