无论是云杉或是桦木，细胞角处的胞间层或次生壁的木素都极易和氯反应。

In both woods, chlorine reacted very rapidly with lignin but the extent of reaction was greater in the secondary wall than in the cell corner middle lamella.

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摘要 ： 本试验测定云杉总黄酮及其二氢槲皮素的含量，研究其抗氧化活性，为后期云杉黄酮的进一步研究提供部分理论依据。

Abstract : The purpose of this study was to determine the total flavonoids and dihydroquercetin contents in Picea asperata Mast. , and to further investigate its antioxidant activity.

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