时差N小时 酸奶中含有神秘液体(下)

As a result, the mixture is more acidic than before, and this higher acidity¹ solidifies² the casein proteins.

因此，混合物比之前更酸，高浓度的酸使酪蛋白凝固。

The whey proteins, on the other hand, don’t solidify³, and separate out from the casein as liquid.

而另一方面，乳清蛋白不会凝固，所以会从酪蛋白中以液体的形式分离出来。

Yogurt you buy in the store has a stabilizer, usually fruit pectin, to keep the solid casein and liquid whey mixed together.

超市里销售的酸奶含有一种稳定剂，通常为果胶，它的作用是让凝固的酪蛋白与液体的乳清结合为一体。

But some of the whey still separates out from the casein, and that’s what you see when you open the yogurt container.

不过，部分乳清仍然会从酪蛋白中分离出来，正如你打开酸奶包装时所看到的液体。

Whey contains not only proteins but also B vitamins, including riboflavin, niacin, and thiamin, which can’t be found in the solid portion of the yogurt.

乳清不仅富含蛋白质还有维生素B，包括核黄素，烟酸和硫胺素，这些物质在凝固的酸奶中是不存在的。

Because of the nutritional⁴ value of whey, your best bet is to mix it back into the rest of the yogurt, then gobble it down!

鉴于乳清丰富的营养价值，你最好把它和酸奶搅拌在一起，然后一口气喝完！

1 acidity   

n.酸度，酸性

参考例句：

• This plant prefers alkaline soil,though it will readily tolerate some acidity.这种植物在酸性土壤中也能生存，但硷性土壤更加适宜。
• Gastric acidity would not prevent the organism from passing into the gut.胃的酸度不能防止细菌进入肠道。

2 solidifies   

（使）成为固体，（使）变硬，（使）变得坚固( solidify的第三人称单数 )； 使团结一致； 充实，巩固； 具体化

参考例句：

• Jelly solidifies as it gets cold. 肉冻冷却就凝固。
• It is stirred with 10%sodium carbonate solution(50ml)and then with water (50ml), after which It'solidifies. 与10％碳酸钠溶液（50毫升）混合搅拌，然后再用50毫升水混合搅拌，从而析出固体。

3 solidify   

v.(使)凝固，(使)固化，(使)团结

参考例句：

• Opinion on this question began to solidify.对这个问题的意见开始具体化了。
• Water will solidify into ice if you freeze it.水冷冻会结冰。

4 nutritional   

adj.营养的，滋养的

参考例句：

• A diet lacking in nutritional value will not keep a person healthy.缺乏营养价值的饮食不能维持人的健康。
• The labels on food products give a lot of information about their nutritional content.食品上的标签提供很多关于营养成分的信息。