摘要
本研究采用几种方法分别测定了核桃青皮中木质素、纤维素和半纤维素含量。采用浓硫酸法测定核桃青果皮的木质素,72%浓硫酸水解法测定纤维素和2mol/L盐酸水解法测定半纤维素。结果表明,核桃青果皮中木质素、纤维素和半纤维素的含量分别为:33.82%、22.42%和21.42%,其中核桃青皮还原糖含量在葡萄糖标准曲线范围内,为23.8%,乘上系数0.9即为半纤维素含量。
The contents of lignin,cellulose and hemicellulose in walnut green husk were determined by several methods.Lignin in walnut husk was determined by concentrated sulfuric acid method,cellulose by 72%concentrated sulfuric acid hydrolysis method and hemicellulose by 2 mol/L hydrochloric acid hydrolysis method.The results showed that the contents of lignin,cellulose and hemicellulose in walnut husk were 33.82%,22.42%and 21.42%respectively.The content of reducing sugar in walnut green husk was 23.8%,within the range of glucose standard curve,and being multiplied by 0.9 was the hemicellulose content.
作者
赵玉雪
朱佳敏
杨霞
娄丽
ZHAO Yu-xue;ZHU Jia-min;YANG Xia;LOU Li(Guizhou Walnut Research Institute, Guiyang, Guizhou 550005)
出处
《贵州林业科技》
2021年第2期7-10,共4页
Guizhou Forestry Science and Technology
基金
贵州省核桃工程技术中心(黔科合平台人才[2019]5202号)
新型环保核桃青皮生物有机肥加工关键技术研究(黔科合支撑[2019]2330号)
球孢白僵菌对核桃长足象的防治技术研究(黔林科合J字[2020]8号)。
关键词
核桃青皮
木质素
纤维素
半纤维素
Walnut green husk
Lignin
Cellulose
Hemicellulose
