文献类型：期刊文献

英文题名：EFFECTS OF STEAM TREATMENT ON BENDING PROPERTIES AND CHEMICAL COMPOSITION OF MOSO BAMBOO (PHYLLOSTACHYS PUBESCENS)

作者：Zhao, R. J.[2] Jiang, Z. H.[2] Hse, C. Y.[3] Shupe, T. F.[1]

第一作者：赵荣军

通信作者：Shupe, TF[1]

机构：[1]Louisiana State Univ, Ctr Agr, Sch Renewable Nat Resources, Baton Rouge, LA 70803 USA;[2]Chinese Acad Forestry, Chinese Res Inst Wood Ind, Beijing 100091, Peoples R China;[3]US Forest Serv, So Forest Res Stn, USDA, Pineville, LA 71360 USA

年份：2010

卷号：22

期号：2

起止页码：197-201

外文期刊名：JOURNAL OF TROPICAL FOREST SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000277628200011)】；

基金：The authors acknowledge the financial support of the Ministry of Science and Technology of China (Grant No. 2006BAD19B04).

语种：英文

外文关键词：Modulus of elasticity; modulus of rupture; cellulose; lignin; hemicellulose; cutin layer

摘要：ZHAO RJ, JIANG ZH, HSE CY & SHUPE TF. 2010. Effects of steam treatment on bending properties and chemical composition of moso bamboo (Phyllostachys pubescens). Effects of temperature (25, 160 and 200 degrees C) and time (15 and 30 min) of steam treatment on the mechanical and chemical characteristics of most) bamboo were studied. The modulus of rupture (MOR) and modulus of elasticity (MOE) of the outer culm were at least 2.4 and 2.2 times respectively greater than those of the inner culm. Temperature and time had no effect on bending properties oldie outer and inner cubits. A significant decrease it) MOR occurred after the specimens were subjected to 200 degrees C. The per cent MOR reduction after 30 nun treatment at 200 degrees C was more than 33 and 29% respectively, as compared with that or 25 and 160 degrees C, but steam treatment had no effect on MOE. Of the three major chemical constituents of baniboo, alpha-cellulose was very stable to temperature and tune, but lignin content increased slightly when temperature was increased to 200 degrees C. However, the hemicellulose content decreased substantially as temperature increased. The similar decreases for hemicellulose content and MOR of bamboo suggested that hemicelltdose loss in thermallydegraded bamboo was correlated with MOR strength loss. At 200 degrees C, there were significant decreases iii MOR, hemicellulose content and pH, and increases in hot water extractives, ethanol benzene extractives, 1% NaOH extractives and lignin content.