During digestion, protein breaks down into amino acids, the building blocks of cells.

在消化过程中，蛋白质被分解成氨基酸——构成细胞的原料。

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Early stages of digestion take place in the stomach where pepsin and lipase aid in digesting protein and fat.

消化的初期阶段在胃里进行，在这里胃蛋白酶和脂肪酶帮助消化蛋白质和脂肪。

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An amino acid, C6H14N4O2, obtained from the hydrolysis or digestion of plant and animal protein.

精氨酸一种胺基酸，C6H14N4O2，从植物及动物蛋白的水解或消化中获取。

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They exposed gliadin to digestive enzymes in test tubes and were able to identify a protein fragment made up of 33 amino acids that was resistant to further digestion and whose structure was known to be toxic.

BBC: Cause of dietary disorder uncovered