The Aloe contains a number of active principles such as anthraquinone compounds, polysaccharide, organic acid, amino acid, mineral elements and active enzyme.

芦荟含有蒽醌类化合物、多糖、有机酸、氨基酸、矿质元素活性、酶等多种有效成分，本文阐述了各有效成分的药理和保健功效。

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The highland barley green is rich in protein, vitamin, mineral, active enzyme, chlorophyll, etc, and it is the elite of the seedling of wheat in the highland barley.

青稞麦绿素富含蛋白质、维生素、矿物质、活性酶、叶绿素等多种有效成分，是青稞嫩苗的精华。

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C-Sixty's fullerene-based drug scuppers this process by settling snugly into the enzyme's active site, stopping it functioning.

ECONOMIST: Nanotechnology in biology

Using this data, Adams in 1995 concocted an unusual boron molecule that snuggled into one of the enzyme's active sites and blocked its function.

FORBES: Magazine Article

Dr Wilson and his colleagues have discovered that the complex finds its way to the active site of a viral enzyme known as reverse transcriptase.

ECONOMIST: Nanotechnology in biology