食品与机械2018，Vol.34Issue(1)：67-71,5.DOI:10.13652/j.issn.1003-5788.2018.01.013
茄非食部分生物碱提取液抑菌活性研究
Study on bacteriostatic activities of alkaloid extract from the inedible parts of the eggplant
摘要
Abstract
The alkaloid extracts of the inedible parts from the eggplant in food were investigated by the acteriostatic experiment and stability experimentS.The common ability of bacteria inhibiting nine kinds of common spoilage microorganisms,and the influences of the heat treatment,pH value,ultraviolet irradiation,the concentration of sucrose and NaCl concentration on it were also studied.The results showed that the extract had good antibacterial effect on yeast,bacteria and mould,and a significant bacteriostatic effect was better than that of 0.5％ potassium sorbate;the thermal stability of the extract was good under the temprature of 121 ℃,while the bacteriostasis effect greatly reduced when the treatment temprature reached to 121 ℃.The pH and ultraviolet radiation also had a certain influence on the extract bacteriostatic activity,the optimum pH value was 7～ 8;the bacteriostatic activity was basically stable when ultraviolet irradiation in less than 30 min,and significantly decreased 30 min later.In additioncal,the antimicrobial activity of the extract increased with the increase of concentration of sugar or salt.关键词
茄/非食部分/生物碱提取液/抑菌活性Key words
eggplant/inedible parts/alkaloid extract/bacteriostatic activity引用本文复制引用
刘艳芳,张德欣,丁寅寅..茄非食部分生物碱提取液抑菌活性研究[J].食品与机械,2018,34(1):67-71,5.基金项目
安徽省高校自然科学研究重点项目(编号:KJ2016A560,皖教秘科[2016]11号) （编号:KJ2016A560,皖教秘科[2016]11号）
安徽省高校优秀青年人才支持计划重点项目(编号:gxyqZD2017126,皖教秘人[2017]28号) （编号:gxyqZD2017126,皖教秘人[2017]28号）
