详细信息
香樟叶叶绿素的提取及对液态食品中金黄色葡萄球菌的抑制作用 被引量:7
Optimization of chlorophylls extraction from Cinnamomum camphora(L.) Presl leaf and its inhibitory effect against Staphylococcus aureus in liquid food
文献类型:期刊文献
中文题名:香樟叶叶绿素的提取及对液态食品中金黄色葡萄球菌的抑制作用
英文题名:Optimization of chlorophylls extraction from Cinnamomum camphora(L.) Presl leaf and its inhibitory effect against Staphylococcus aureus in liquid food
作者:全沁果[1];段丽萍[2];何楚娴[1];周浓[1];李承勇[1]
机构:[1]广东海洋大学食品科技学院,广东湛江524088;[2]湖南科技学院化学与生物工程学院,湖南永州425199
年份:2016
卷号:28
期号:12
起止页码:2109
中文期刊名:浙江农业学报
外文期刊名:Acta Agriculturae Zhejiangensis
收录:CSTPCD、、北大核心2014、CSCD2015_2016、北大核心、CSCD
基金:国家自然科学基金青年基金(21405024);广东省公益研究与能力建设专项资金(2014A020212683)
语种:中文
中文关键词:香樟;叶绿素;液态食品;抑制作用
外文关键词:Cinnamomum camphora(L.) Presl; chlorophyll; liquid food; inhibitory effect
中文摘要:以香樟叶叶绿素提取量为指标,采用超声波辅助有机溶剂法研究永州香樟叶叶绿素的提取工艺,并初步探索提取的香樟叶叶绿素对液态食品中金黄色葡萄球菌的抑制作用。结果表明,香樟叶叶绿素的最适提取工艺为丙酮-乙醇(2∶1,体积比)为溶剂,料液比1∶20 g·m L^(-1),超声时间8.8 min,浸提温度50℃,浸提时间3.9 h,连续提取2次。在此条件下,香樟叶叶绿素的平均提取量为4.667 mg·g-1。抑菌实验表明,在盐水体系中以10 mmol·L^(-1)的香樟叶叶绿素杀菌效果最好。
外文摘要:Chlorophyll was extracted from Cinnamomum camphora(L.) Presl leaves in Yongzhou via ultrasonic-assisted organic solvent,and the sterilization effect of the extracted chlorophylls against Staphylococcus aureus in liquid food was explored. It was shown that 4. 667 mg·g^-1 chlorophyll could be obtained under the following optical conditions: solid/liquid ratio of 1: 20 g·m L^-1; ultrasonic treatment time of 8. 8 min; extraction temperature of 50 ℃; extraction time of 3. 9 h,and acetone-ethanol(2∶ 1. V/V) as the extraction agent. The best inhibition effects of the extracted chlorophyll against S. aureus was achieved at the concentration of 10 mmol·L^-1in Na Cl-water system.
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