The foamy substances cover foam protein, polypeptide, isohumulone, melanoid, metal ions, amylase, alcohol and barm etc.
使啤形成泡沫的物质有泡沫白和多肽、异葎草酮、类黑素、金属离子、多糖、、氧化碳及酵母。
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Different enzymes help to break different linkages - for example amylases break down large polysaccharides like starch into smaller units, whereas lactase, sucrase, and maltase break down lactose, sucrose, and maltose into their monosaccharides.
不同的能分特定的糖链,比如淀粉可以将淀粉等多糖分为小分子的糖,而乳糖、蔗糖、麦芽糖则分别可将乳糖、蔗糖、麦芽糖降为相应的单糖。