如今是有很多种方法来制造生物燃料，但多数情况下还是采用化学反应，发酵和热能来分解植物中的淀粉、糖分以及其他分子。

There are various ways of making biofuels, but they generally use chemical reactions, fermentation, and heat to break down the starches, sugars, and other molecules in plants.

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确实，农业的兴起与基因上很多酶的进化变化紧密联系，如那分解淀粉的淀粉酶amylase，和乳糖分解酶，分解牛奶中的乳糖等。

Indeed, the rise of farming has been linked to evolutionary changes in genes for other enzymes, such as amylase, which breaks down starch, and lactase, which breaks down lactose in milk.

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但他们在一份联合声明中表示，这种能够分解淀粉的酶会损害其产品的口味。

But in a joint statement they say the enzyme that breaks down starch could harm the taste of their products.

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