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植物细胞壁的主要成分是纤维素,在牠的原来位置,可以直接说明,因牠能溶解在氢氧化铜铵(Cuprammonium hydroxide)溶液中,又能发生许多颜色反应,例如用碘和硫酸或溶解在氯化锌和碘化钾中的碘溶液处理,则变为蓝色。但有许多植物的细胞壁是被木质化了,就不能发生纤维素的反应。浓烧碱溶液,氯酸钾和硝酸的溶液,或铬酸溶液都能把木质从木质化的细胞壁除去;在比较的高温和高压之下,作用和缓的药品亦能把木质除去,这就是制备化学纸浆的基础。木质在1838年由沛茵(Anslem Payen)所发现,牠在细胞壁中
The main component of the plant cell wall is cellulose. In its original position, it can be directly stated that because it can be dissolved in Cuprammonium hydroxide solution, many color reactions can occur, such as iodine and sulfuric acid or dissolved in Treatment with iodine in zinc chloride and potassium iodide turned blue. However, there are many plant cell walls that have been lignified and cellulose reactions cannot occur. Concentrated caustic soda solution, potassium chlorate and nitric acid solution, or chromic acid solution can remove the wood from the lignified cell wall; under the comparatively high temperature and high pressure, slow acting drugs can also remove wood, which is to prepare chemical pulp. basis. Wood was discovered by Anslem Payen in 1838 and it is in the cell wall.