Aside from casein, you'll also find that many so-called "natural" food products contain MSG in the form of yeast extract, another deceptive ingredient used in many natural foods.

除了酪，您也会发现，许多所谓的“天然”食品含有味精的形式，酵母提取物，另一种骗人的成分中使用的许多天然食品。

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The place where old-school BBC rules about "sticky-backed plastic" and "a proprietary brand of spreadable yeast extract" still obtain to a ludicrous extent.

在那种“彩色黏胶包装纸”和“自主酵母浸膏品牌”的守旧BBC式的观点居然还有广大市场的地方。

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Tinned pasta and salty flavourings such as gravies and yeast extract are among the foodstuffs blamed by the University of Bristol researchers.

布里斯托大学的研究者把这归咎于一些食料，如罐装面食和一些多盐口味的食品像肉汁和酵母。

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"It's so simple. With a two-liter bottle you add sugar, you add extract, you add a small amount of yeast and water, cap it up and in two days they've got root beer.

VOA: special.2011.08.01

Other Antarctic discoveries include an extract from green algae for use in cosmetic skin treatment, and anti-tumour properties in a strain of yeast.

BBC: NEWS | Science/Nature | Antarctica's resources 'at risk'