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                > 在线听力 > 英语高级听力 > 英语时差 >  第558课

                英语时差:历史最悠久的甜味剂(下)

                所属教程:英语时差

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                xijijun

                2020年07月12日

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                But the reason honey helps keep baked goods fresh has to do with the ability of sugar to attract and hold onto water molecules. All these sugars are “hygroscopic,” that is they attract and hold onto water, each sugar molecule holding several water molecules. By holding onto water, the sugar helps keep moisture from escaping from the food and so keeps it tasting fresher longer. But when two sugars, like fructose and glucose, bond to each other, they lose some of their ability to bond to water molecules. And that means your bread or cake will lose water faster. Honey’s attraction to water is also why candy made from honey tends to get stickier than candy made from sucrose, or table sugar. Commercial bakeries use chemicals like Polysorbate to keep baked goods fresh, but with honey you can do it naturally. Incidentally, if you’re worried that honey will make your cake too heavy, try beating the honey until it’s frothy before adding the other ingredients.
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