龙陵紫皮石斛花色苷色素抑菌作用初探  

Study on Inhibitory Effect of Anthocyanin from Dendrobium devonianum in Longling

作　　者：杨晓娜[1] 徐玲[1] 赵昶灵[2] 尹卓平 

机构地区：[1]保山学院资源与环境学院,保山678000 [2]云南农业大学农学与生物技术学院,昆明650201 [3]龙陵石斛研究所,保山678300

出　　处：《科学技术与工程》2015年第14期139-143,共5页Science Technology and Engineering

基　　金：保山市第一批中青年学术和技术带头人(bszqnxshjsdtr2012-04);保山市科技计划项目;云南省应用基础面上项目(2011FB094)资助

摘　　要：以龙陵紫皮石斛(Dendrobium devonianum)紫茎为试材,研究其色素的抑菌作用。用溶剂法提取花色苷,通过固体和液体培养基的试验方法,研究了龙陵紫皮石斛花色苷对大肠杆菌(Escherichia coli)、金黄色葡萄球菌(Staphyloccocus aureus)、枯草芽孢杆菌(Bacillus subtilis)的抑菌作用。3种类型紫皮石斛花色苷对枯草芽孢杆菌抑菌作用较为显著,且抑菌作用与花色苷浓度呈正相关。抑菌作用大小为:枯草芽孢杆菌>金黄色葡萄球菌>大肠杆菌。The solvent extraction and stability of anthocyanin from purple stems of Dendrobium devonianum were studied. Bacteriostasic activity experiments on anthocyanin extracted from Dendrobium devonianum inhibiting Esche- richia coli,Staphyloccocus aureus, Bacillus subtilis were conducted by using solid and liquid culture methods. The results showed that the anthocyanin of Dendrobium devonianum of three types had the stronger anti-activity for Bacil- lus subtilis, and the bacteriostasic activity increased with increasing content of anthocyanin of Dendrobium devonia- num. The degree of anti-bacteria activity was ： Bacillus subtilis 〉 Staphyloccocus aureus 〉 Escherichia coll.

关 键 词：紫皮石斛 花色苷 抑菌作用 

分 类 号：Q946[生物学—植物学] Q93-3