The polysaccharides are the complex carbohydrates, including starch, glycogen, and cellulose.

多糖是复杂的碳水化合物，包括淀粉、糖原和纤维素。

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"They are like little factories that spit out biofuel molecules without the need for starch or cellulose, " explains Gibbons.

吉本斯解释：“这就像一个不需要淀粉或者纤维素就能生产出生物燃料分子的小型工厂。”

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Until recently, the assumption has been that cellulose would take over from sugar and starch as the feedstock for making biofuels.

直到最近，这个假定认为纤维素会取代蔗糖和淀粉作为给料，制造生物燃料。

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Then the polysaccharides are the complex carbohydrates, and that's starch, glycogen, and cellulose.

多糖则是复杂的碳水化合物,淀粉,糖原,以及纤维素都是多糖

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For example, food vendors in the main Olympic Park will use compostable packaging made mainly from starch and cellulose-based bio-plastics.

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