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首页> 外文期刊>Cellulose >Characterizing wood polymers in the primary cell wall of Norway spruce (Picea abies (L.) Karst.) using dynamic FT-IR spectroscopy
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Characterizing wood polymers in the primary cell wall of Norway spruce (Picea abies (L.) Karst.) using dynamic FT-IR spectroscopy

机译：使用动态FT-IR光谱表征挪威云杉（Picea abies（L.）Karst。）原代细胞壁中的木材聚合物

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Dynamic Fourier Transform Infra-Red (FT-IR) spectroscopy was used to examine the interactions among cellulose, xyloglucan, pectin, protein and lignin in the outer fibre wall layers of spruce wood tracheids. Knowledge regarding these interactions is fundamental for understanding the fibre separation in a mechanical pulping process. Sheets made from an enriched primary cell wall material were used for studying the viscoelastic response of the polymers. The results indicated that strong interactions exist among lignin, protein, pectin, xyloglucan and cellulose in the primary cell wall. This signified a closely linked network structure of the components on the fibre surface. This ultrastructural arrangement in the primary cell wall and the relatively high content of lignin, pectin and protein in it, means that the primary cell wall is more submissive to selective chemical attacks, when compared to the secondary cell wall. A low ratio of cellulose I alpha to cellulose I beta in the primary cell wall was also found.
机译：使用动态傅里叶变换红外光谱（FT-IR）来检查云杉木材气管的外纤维壁层中纤维素，木葡聚糖，果胶，蛋白质和木质素之间的相互作用。有关这些相互作用的知识对于理解机械制浆过程中的纤维分离至关重要。由富集的原始细胞壁材料制成的片材用于研究聚合物的粘弹性响应。结果表明，木质素，蛋白质，果胶，木葡聚糖和纤维素在原代细胞壁之间存在强相互作用。这表示纤维表面上组分的紧密连接的网络结构。原代细胞壁中的这种超微结构排列以及木质素，果胶和蛋白质中相对较高的含量，意味着与次要细胞壁相比，原代细胞壁更容易接受选择性化学攻击。还发现原代细胞壁中的纤维素Iα与纤维素Iβ比率低。

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