摘要
以竹笋壳为原料,采用乙醇浸提法来提取黄酮类化合物。结果表明,竹笋壳黄酮最佳的提取工艺参数:乙醇浓度为60%,浸提时间为3 h,料液比为1∶25,浸提温度为80℃,此时提取量可达到4.393 mg/g。考察了竹笋壳黄酮类化合物提取液对羟基自由基的清除能力。结果表明,当竹笋壳黄酮类提取物的浓度达到60μg/mL时,其对.OH的清除率达到58.02%,表现出良好的抗氧化活性。
The flavonoids were extracted from shells of bamboo shoots with ethanol solution.The optimum extraction conditions were：ethanol concentration 60%,solid-liquid ratio 1∶ 25,extraction time 3 h,temperature 80 ℃.As the result,the yield of flavonoids reached 1.797 6 mg/g.Results still showed that the flavonoids had high antioxidant activity,which benefited to take full advantage of the bamboo shoots shells.
出处
《应用化工》
CAS
CSCD
2012年第3期465-468,共4页
Applied Chemical Industry
关键词
竹笋壳
黄酮类化合物
提取工艺
羟自由基
抗氧化性
shells of bamboo shoots
flavonoid
extraction process
hydroxyl radical
antioxidant activity
