厚壁毛竹的主要化学成分及其稀酸水解成分分析  

Study on Main Chemical Composition and Dilute Acid Hydrolysis of Phyllostachys edulis cv. pachyloen

作　　者：梁坚坤 李浙星 李权[1] 孙军[1] 陈尚邢 李利芬 吴志刚[3] Liang Jiankun;Li Zhexing;Li Quan;Sun Jun;Chen Shangxing;Li Lifen;Wu Zhigang(Kaili University,Qiandongnan Guizhou 556011,China;College of Landscape Architecture and Art,Jiangxi Agricultural University,Nanchang Jiangxi 330000,China;College of Forestry,Guizhou University,Guiyang Guizhou 550025,China)

机构地区：[1]凯里学院,贵州黔东南556011 [2]江西农业大学园林与艺术学院,江西南昌330000 [3]贵州大学林学院,贵州贵阳550025

出　　处：《西南林业大学学报（自然科学）》2019年第4期161-165,共5页Journal of Southwest Forestry University：Natural Sciences

基　　金：凯里学院博士启动专项课题(BS201810)资助;贵州省科技支撑项目([2019]2308,[2019]2325)资助;贵州省林业厅项目([2017]14和[2018]13)资助;贵州省教育厅项目([2017]114)资助

摘　　要：以1年生、2年生和5年生厚壁毛竹的秆、枝、叶为研究对象,对其主要化学组成进行分析;同时对竹粉和综纤维素进行稀硫酸处理,分析其糖及抑制物的浓度。结果表明:随着竹龄和部位的不同,厚壁毛竹的主要化学组成呈现一定的变异规律,叶片的灰分含量最高,秆部灰分含量最低,叶片的苯醇抽提物最高;1年生厚壁毛竹秆部的纤维素含量最高,不同竹龄的厚壁毛竹的综纤维素含量变化不大;5年生厚壁毛竹秆部的酸不溶木质素含量最高,而1年生厚壁毛竹叶片的含量最低;秆的各种糖浓度均大于枝,枝的糖浓度均大于叶;抑制物中乙酸的浓度最高,乙酰丙酸的浓度最低;竹粉中糖含量及抑制物浓度均比综纤维素高。Studied on the main chemical components of different parts of 1, 2 and 5 year-grown Phyllostachys edulis cv. pachyloen. P. edulis cv. pachyloen powder and holocellulose were treated with dilute acid to analyze the concentration of sugars and inhibitors. The results showed that there was a certain degree of regularity of chemical components among different parts of different year-grown bamboo. The ash content of leaves was the highest, and the lowest in the rod. Benzene-alcohol extract content was the highest in the leaves. The cellulose content of one-year-grown bamboo was the highest. The holocellulose content of P. edulis cv. pachyloen at different ages changed little. The acid-insoluble lignin content in the rod of 5-year-grown bamboo was the highest, the lowest in the leaves of 1-year-grown bamboo. Various sugar concentration in the rod was higher than the branches, followed by the leaves. Of the inhibitor, the acetic acid concentration was the highest, and the lowest the levulinic acid. Both the sugar content and inhibitor concentration in P. edulis cv. pachyloen powder were higher than those of holocellulose.

关 键 词：厚壁毛竹 化学组成 半纤维素 葡萄糖 抑制物 

分 类 号：S784[农业科学—林学]