Physicochemical Properties of Hydrothermally Treated Hemicellulose from Oil Palm Frond

被引：24
|
作者：
Fazilah, Ariffin [1 ]
Azemi, Mohamed N. Mohd [2 ]
Karim, Alias A. [1 ]
Norakma, Mohd N. [1 ]
机构：
[1] Univ Sains Malaysia, Sch Ind Technol, Minden 11800, Penang, Malaysia
[2] Univ Kuala Lumpur, Kuala Lumpur 50250, Malaysia
来源：
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2009年 / 57卷 / 04期
关键词：
Hemicellulose; OPF; Klason lignin; monosaccharides; STRUCTURAL-CHARACTERIZATION; SOLUBLE HEMICELLULOSES; WHEAT-STRAW; ARABINOXYLANS; EXTRACTION; ORGANOSOLV; CELLULOSE; LIGNIN; XYLAN;
D O I：
10.1021/jf8028013
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
Hemicelluloses from oil palm frond (OPF) were extracted using 3 M potassium hydroxide (KOH) for 4 h at 40 degrees C with stirring at 400 rpm to obtain hemicelluloses A and B. The total yield of the hemicellulose isolated from OPF was 33% (dry weight). Both hemicelluloses A and B were then subjected to hydrothermal treatment at 121 degrees C and 1.03 x 10(5) Pa for 10, 30, and 50 min. Physicochemical characterizations of hydrothermally treated hemicelluloses, such as Klason lignin content and reducing sugar content, were performed to study the effect of autohydrolysis processing on OPF-derived hemicelluloses. It was shown that Klason lignin content in hemicellulose A was higher than that in hemicellulose B and decreased after hydrothermal treatment. Hydrothermal treatment enhanced the solubility of hemicelluloses, which reflects their higher reducing sugar content. Monosaccharide analysis using HPLC showed that xylose was the predominant monosaccharide for both hemicelluloses A and B.
引用
收藏
页码：1527 / 1531
页数：5
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