作　　者： ; ; ; ; ;

机构地区： 华南理工大学轻工与食品学院制浆造纸工程国家重点实验室

出　　处： 《中国造纸学报》 2005年第2期11-15,共5页

摘　　要： 光叶楮杆芯化学成分、组织结构和细胞形态的研究表明:它具有阔叶木的一些特点,同时又具有非木材纤维原料的一些特征。与三倍体毛白杨等一般的造纸用阔叶材和麦草相比,光叶楮杆芯抽出物及戊聚糖含量较高,细小组分含量也较高。光叶楮木质部为散孔材,纤维长宽比小,粗度大;杆芯由导管(单孔、两孔和三孔组成)、木纤维、木射线薄壁细胞(两列或三列排列)和髓芯薄壁细胞组成。 The study of chemical composition, tissue structure and cell morphology of debarked Guangyechu indicates that it has the characteristics of hardwood species and non-wood materials. The contents of extractives in coldwater, boiled water, 1% NaOH and polysaecharide are all higher than the common hardwood as well as wheat straw materials using for pulping purpose. The fibers of its xylem are end-tapering and bosom-bulky, with characteristics of thin cell wall. In addition, large lumen and relatively small ratio of length to width of the fiber are observed in our experimental work. There are several kinds of cells in the xylem, including vessels, wood fiber, ray parenchyma and pith parenehyma. The xylem of Guangyechu is diffusely porus. There are three kinds of vessels with one-hole, two-hole and three-hole, which are as the same of triploid populus tomentosa and common hard wood. The ray parenchyma of xylem of Guangyechu is presented as multiple arrays with high tightness, which is different from that of triploid populus tomentosa. It is also found that there is a large content of wood-ray parenchyma in the xylem of Guangyechu.

关 键 词： 光叶楮 化学组分 组织结构 细胞形态

领　　域： [轻工技术与工程]