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Methods Serum RNase was detected by biochemical reaction with pure yeast RNA as substrate.
方法以纯酵母RNA为底物的生化反应测定血清RNA酶活性。
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The principal methods of avoiding spoilage are the use of pure yeast strains as starters.
防止啤酒变坏的主要方法是用纯酵母菌株发酵.
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采用自行分离纯化的酵母菌Y1、乳酸菌R3、醋酸菌C5进行纯种混合发酵生产红茶菌饮料，并对发酵工艺条件进行优化。
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the key ingredients in traditional german beer are hops, malt for brewing, yeast, and pure water.
德国啤酒的传统关键原料是啤酒花、用于酿造的麦芽、酵母和纯净水。
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