麻竹纖維結晶領域之研究

Study on the Crystalline Area of Machu Fiber

廖運鎬(Yun-Hau Liau) ； 謝伯東(Po-Tung Hsieh)

《化學》 51年2期 (1962/06) Pp. 47-50

https://doi.org/10.6623/chem.1962009

摘要

以2.4N HCl, 2.4 N HCl-0.6 M FeCl_3及0.24 N HCl之加水分解曲線來決定麻竹holocellulose之結晶領域量。以10% NaOH處理的麻竹holocellulose之結晶領域量較未處理者爲稍低，前者含量爲66-67%，後者爲71-72%（均未扣除lignin含量)。又以0.24 N HCl加水分解，則有惹起纖維再結晶之憂。另作水解各階段中麻竹holocellulose殘渣内醣類之分析,知xylan之一部分分佈於結晶領域中，而結晶領域中似不含有arabinose單位，uronic acid單位及澱粉。

並列摘要

Machu holocellulose which was treated with or without 10% NaoH was used as sample in this experiment. The preparation and the analysis of sample were carried out as reported previously 12. The crystallinity of the holocellulose was obtained by hydrolyzing the holocellulose with 2.4 N HCl 0.6 M Fecia and 24 N HCI. The results were obtained as follows; (See Figs. 1 and 2). (The form abridges) The holocellulose was also hydrolyzed with 0.24 N HCl (see Fig. 3). The results indicated that the recrystallization of fiber took place easily under the wilder hydrolysis. The analytical data of the hydrolyzed residues of holocellulose (see Table 1) showed that a part of xylan was distributed in the crystalline area. But another non-cellulosic carbohydrates (arabinose residue, uronic acid residue and starch etc.) were not the constituents of crystalline area.