黑柄炭角菌不同组织的氨基酸组成和含量分析  

Analysis of amino acid constituents and contents in different tissues of Xylaria nigripes

作　　者：翁榕安[1] 李超琼[1] 马橙[1] 陈作红[1] 

机构地区：[1]湖南师范大学生命科学学院,长沙410081

出　　处：《食品科技》2009年第7期75-77,共3页Food Science and Technology

基　　金：湖南省教育厅重点项目(08A044)

摘　　要：以黑柄炭角菌不同组织(天然菌核、天然子座、栽培子座以及发酵菌丝)为材料,采用氨基酸自动分析仪进行了水解氨基酸和游离氨基酸的组成和含量测定。结果表明,黑柄炭角菌不同组织含有17种水解氨基酸,总量为121.521～271.594mg/g,其中必需氨基酸7种,必需氨基酸占氨基酸总量(E/T)39.87%～57.60%。同时测得游离氨基酸29种,其中必需氨基酸8种。无论是氨基酸总量还是必需氨基酸含量均为:栽培子座>天然子座>天然菌核。黑柄炭角菌氨基酸种类多含量高,在医学和营养学上都有较高的研究价值,具有良好的开发利用前景。Constituents and contents of hydrolytic and free amino acid in different tissues （natural sclerotium, natural stroma, cultivated stroma and fermented mycelium） of Xylaria nigripes were determinated by automatic amino acid analysator L-8800. The results showed that there were 17 kinds of hydrolytic amino acid（7 kinds of essential amino acids） and 29 kinds of free amino acid （8 kinds of essential amino acids） in different tissues of Xylaria nigripes. The total content of hydrolytic amino acid was 121.521-271.594 mg/g, the E/T was 39.87%-57.60%. The cultivated stroma had the highest contents of total amino acids and essential amino acids, whereas the natural stroma had the lowest contents of total amino acids and essential amino acids. The rich and high content of amino acids in Xylaria nigripe indicated it had high nutritive value and pharmaceutical value and it had satisfactory advantage in exploitation.

关 键 词：黑柄炭角菌 子座 菌核 水解氨基酸 游离氨基酸 

分 类 号：Q517[生物学—生物化学]