文献类型：期刊文献

英文题名：Effect of Steam Heating on the Color and Chemical Properties of Neosinocalamus Affinis Bamboo

作者：Zhang, Yamei[1] Yu, Wenji[1] Zhang, Yahui[1]

第一作者：张亚梅

通信作者：Yu, WJ[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2013

卷号：33

期号：4

起止页码：235-246

外文期刊名：JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000320098800001)】；

语种：英文

外文关键词：Neosinocalamus affinis; fibrous veneers; bamboo-based fiber composites; steam treatment; color; chemical properties

摘要：Fibrous veneers in loose structure were made from Neosinocalamus affinis bamboo, and then used as the basic element for bamboo-based fiber composites. Steam treatment of the fibrous veneers was performed inside an autoclave at 0.35 MPa to 0.45 MPa (147 degrees C to 155 degrees C) for 110min to 170min. After steam treatment, all three color parameters (L*a*b*) of fibrous veneers were changed significantly. The color change (E*) increased with higher pressure and longer duration. The chemical properties of steam-treated samples were examined using chemical analysis. A decrease in the content of holocellulose and -cellulose with an elevation in steam treatment was found. The water extractives content and buffering capacity increased, and the effect of pressure and duration on them increased significantly. pH value decreased significantly compared with control samples, but only small variations were found among steam-treated samples. Through correlation analysis, pH value was strongly correlated to hemicelluloses and water extractives.