期刊论文

Comparison of scavenging DPPH free radical and restraining bacteria of indocalamus latifolius leaf＇s extracts

中文

食品科技

1005-9989

2010

35

4

174-177

10.13684/j.cnki.spkj.2010.04.070

中南林业科技大学青年基金项目（07013B） 湖南省教育厅科学研究项目（06C883）

本校为第一机构

为确定贮藏时间对箬叶清除自由基能力和抑菌效果的影响,对4个不同贮藏年份的阔叶箬竹叶水提取液和85%乙醇提取液清除DPPH·的能力以及抑制大肠杆菌和金黄色葡萄球菌的效果进行了比较研究。结果表明,贮藏2、3年和4年后,水提取液对DPPH·的清除率分别下降了22.4%、26.4%和32.9%,醇提取液对DPPH·的清除率分别下降了15.2%、23.6%和33.8%;水提取液抑制大肠杆菌的能力分别降低了20.7%、30.5%和43.1%,醇提取液抑制大肠杆菌的能力分别降低了18.0%、27.5%和40.1%;水提取液抑制金黄色葡萄球菌的能力分别降低了20.0%、31.5%和41.8%,醇提取液抑制金黄色葡萄球菌的能力分别降低了17.3%、27.5%和40.1%。醇提取...

In order to decide the influence of storage period on scavenging free radical and restraining bacteria,scavenging DPPH· and restraining bacteria of Indocalamus latifolius leaf＇s water extracts and 85% ethanol extracts were tested.The results showed that after storing 2,3,4 years respectirely,scavenging DPPH· rate of water extracts decreased respectirely 22.4%,26.4% and 32.9%,scavenging DPPH· rate of ethanol extracts decreased respectirely 15.2%,23.6% and 33.8%;The capacity of restraining escherichia coli of water extracts decreased respecti...