ON THE DETERMINATION OF LIGNIN CONTENT IN NON-WOOD TISSUES AND PLANTS (2) QUANTITIVE EXAMINATION OF PRE-EXTRACTION TREATMENT

摘要：

In previous studies, it was strongly suggested that Klason method overestimates the lignin content of non-wood tissues or plants and non-lignin substances are included in Klason residue. In this study, several extractions were applied to ginkgo leaves and zelkova leaves. Klason method and acetyl bromide method overestimate the lignin content when applied to non-wood tissue even after pre-extraction. Klason residue obtained from non-wood tissue contains significant amount of non-lignin substances and preextracted non-wood sample still contains significant amount of non-lignin substances Even by mild pre-extraction, a part of cell wall components (carbohydrate and lignin) are easily removed. Therefore, no pre-extraction method can separate cell-wall components and others selectively and effectively.

关键词： lignin leaf pre-extraction

作者: Morikazu Toda Takuya Akiyama Tomoya Yokoyama Yuji Matsumoto

作者单位: Laboratory of Wood Chemistry, Department of Biomaterial Sciences, Graduate school of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan

会议类型: 国际会议

会议名称: 16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)

会议地点: 天津

会议语种:英文

页码: 322-326

在线出版日期: 2011-06-08（万方平台首次上网日期，不代表论文的发表时间）