摘要
为寻找一种新型、无污染、资源丰富、性价比高的天然防腐剂及抗氧化剂作为化妆品原料,同时为苦菜的进一步开发利用及产品深加工研究提供理论依据,以野生苦菜为材料,采用滤纸片抑菌法和分光光度法研究苦菜不同部位(根、茎和叶)乙醇提取物的抑菌活性及抗氧化性。结果表明:苦菜根、茎、叶的乙醇提取物对大肠杆菌、金黄色葡萄球菌、枯草芽孢杆菌均有一定的抑制作用,但其作用程度不同,对各种菌的抑菌程度均为叶>茎>根,对大肠杆菌的最低抑菌浓度为根>茎>叶;苦菜不同部位提取物具有显著的抗氧化能力,且其抗氧化能力为叶>茎>根。
In order to find a new,non-polluting,resource-rich,cost-effective natural preservatives and antioxidants as cosmetic material,at the same time for the further development and utilization of bitter herbs and provide theoretical basis for deep processing of products research,in this paper,the authors used bacteriostatic method and spectrophotometric method to study antibacterial and antioxidant activity of the root,stem and leaf with ethanol extract fromS.oleraceus.Results：Root,stem and leaf has a certain inhibitory effect on Escherichia coli,Taphylococcus flureus and Bacillus subtilis,but its effect degree was different,the inhibition degree of each species was leaf stem root;The minimum inhibitory concentration（MIC）of E.coli was rootstemleaf.By determination of roots,stem,leaf extract reducing power,DPPH clearance,-OH rate determination of scavenging,the results showed that the S.oleraceus have significant antioxidant capacity,and the different parts of the antioxidant capacity as follows：leaves stems roots.
出处
《贵州农业科学》
CAS
2016年第4期60-62,共3页
Guizhou Agricultural Sciences
基金
山西省大学生创新创业训练项目"苦菜的抑菌活性和抗氧化性研究"(2014466)
吕梁学院大学生创新创业训练重点项目"苦菜的抑菌活性和抗氧化性研究"(CXCYZD201410)
关键词
苦菜
根
茎
叶
抑菌活性
抗氧化性
Sonchus oleraceus
root
stem
leaf
antibacterial activities
antioxidant activities
