Glycosides are certain molecules in which a sugar part bound to some other part through its anomeric carbon to another group.

糖苷，是糖或糖的衍生物与另一类非糖物质通过糖的端基碳原子链接而成的化合物。

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Unlike most sugar molecules which are based on a six-carbon structure, Xylitol is based on five carbon atoms.

和大部分六碳糖分子不同，木糖醇是以五碳为骨架的。

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The acetogenic bacteria directly convert all of the carbon in sugar into acetic acid, which is then combined with hydrogen to produce ethanol without the carbon losses, the firm claims.

ZeanChem声称，乙酸细菌直接将所有糖中的碳转化成乙酸，然后与氢结合生成乙醇而没有碳的损失。

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As a result, certain plants in warm climates have evolved a different mechanism, called C4 photosynthesis, in which other enzymes help to concentrate CO2 around the rubisco, and the initial result is a four-carbon sugar.

ECONOMIST: Genetic modification

Yeast is then added, converting sugar into alcohol and carbon dioxide gas.

CNN: New ideas brewing in beer industry

But corn kernels are a cheap and eco-friendly source of sugar--which is also a source of carbon.

FORBES: Shucking Petroleum