荞麦叶大百合总黄酮提取工艺及抗氧化活性研究
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摘要
研究荞麦叶大百合总黄酮的乙醇提取工艺及其抗氧化活性,在单因素试验基础上,以乙醇浓度、提取温度、料液比、提取时间为自变量,总黄酮提取率为因变量,运用正交试验优化荞麦叶大百合中总黄酮提取工艺。同时,测定荞麦叶大百合总黄酮对DPPH自由基的清除活性。结果表明:荞麦叶大百合中总黄酮提取的最佳工艺条件为乙醇浓度为70%,提取温度60℃,料液比为1∶10(g/mL)和提取时间为30 min。此条件下,总黄酮提取率达到10.90 mg/g,重复性试验结果表明,此方法稳定可靠,提取率高,适于荞麦叶大百合中总黄酮的提取。荞麦叶大百合总黄酮和V_C对DPPH自由基的半数清除率EC_(50)分别是4.439、18.746μg/mL,由抗氧化试验结果看出,荞麦叶大百合中总黄酮对于DPPH自由基的清除能力优于抗氧化剂V_C,具有较强的抗氧化活性。
Orthogonal test method was used to optimize the extraction technology of total flavonoids from Cardiocrinum cathayanum. On the basis of single-factor test,the extraction conditions(ethanol concentration,extraction temperature,ratio of water to materials and extraction times)were analyzed and optimized by the orthogonal design. Meanwhile,the scavenging effects of total flavonoids from Cardiocrinum cathayanum on DPPH·were determined. The results showed that the optimum extraction conditions were as follows:ethanol concentration was 70 %,extraction temperature was 60 ℃,ratio of raw material to liquid was 1 ∶ 10(g/mL)and extracting for 30 min. Under the conditions,the yield of total flavonoids was 10.90 mg/g. This method was suitable for the extraction of total flavonoids from Cardiocrinum cathayanum with high extraction rate. The total flavonoids from Cardiocrinum cathayanum and vitamin C had the DPPH radical scavenging ability with EC_(50) of 4.439 μg/mL and 11.297 μg/mL,respectively. The results of in vitro antioxidant test showed that the scavenging effects of total flavonoids extract from Cardiocrinum cathayanum to DPPH· was better than that of vitamin C solution at the same concentration.
Orthogonal test method was used to optimize the extraction technology of total flavonoids from Cardiocrinum cathayanum. On the basis of single-factor test,the extraction conditions(ethanol concentration,extraction temperature,ratio of water to materials and extraction times)were analyzed and optimized by the orthogonal design. Meanwhile,the scavenging effects of total flavonoids from Cardiocrinum cathayanum on DPPH·were determined. The results showed that the optimum extraction conditions were as follows:ethanol concentration was 70 %,extraction temperature was 60 ℃,ratio of raw material to liquid was 1 ∶ 10(g/mL)and extracting for 30 min. Under the conditions,the yield of total flavonoids was 10.90 mg/g. This method was suitable for the extraction of total flavonoids from Cardiocrinum cathayanum with high extraction rate. The total flavonoids from Cardiocrinum cathayanum and vitamin C had the DPPH radical scavenging ability with EC_(50) of 4.439 μg/mL and 11.297 μg/mL,respectively. The results of in vitro antioxidant test showed that the scavenging effects of total flavonoids extract from Cardiocrinum cathayanum to DPPH· was better than that of vitamin C solution at the same concentration.
引文
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[13]钱慧琴,秦晶晶,赵媛,等.月季不同部位总黄酮含量分析及其抗氧化活性研究[J].食品研究与开发,2018,39(20):19-22
[2]薛梅,李晓庆,周卫平.龙牙百合花总黄酮提取工艺及抗氧化性[J].江苏农业科学,2017,45(2):182-184
[3]薛梅,周卫平.龙牙百合鳞茎总黄酮提取工艺及抗氧化性[J].中国药学杂志,2017,45(3):10-12
[4]周菊峰,彭爱娇.三波长分光光度法测定药用百合中总黄酮中总黄酮[J].西北药学杂志,2011,26(3):165-166
[5]许丽璇.微波提取百合总黄酮及抗氧化性研究[J].时珍国医国药,2010,21(8):2069-2071
[6]杜鹃,罗秋水,杜华英,等.香水百合中总黄酮提取及其抗氧化活性研究[J].江苏农业科学,2016,44(12):320-322
[7]GUOR,GUO X,LI T,et al.Comparative assessment of phytochemical profiles,antioxidant and antiproliferative activities of Sea buckthorn(Hippopha rhamnoides L.)berries[J].Food Chemistry,2017,221:997-1003
[8]王全泽,袁堂丰,刘磊磊,等.响应面法优化闪式提取罗汉松总黄酮及其抗氧化活性[J].精细化工,2018,35(1):65-71
[9]WANG P Q,KONG X M,KANG W Y.Antioxidant activity of Slavia miltiorrhiza Bunge and different processed products[J].Nat Prod Res Dev(天然产物研究与开发),2014,26(7):1132-1136,1042
[10]Lulu Zhang,Hui Lin,Wei Liu,et al.Antifungal activity of the ethanol extract from Flos Rosae Chinensis with activity against Fluconazole-Resistant Clinical Candida[J].Iran Journal Biotech,2016,14(1):51-55
[11]李登昌,陈毓.香水百合中总黄酮的含量测定[J].安徽农业科学,2013,41(57):6900-6901
[12]张迪.响应面法优化马鞭草总黄酮闪式提取工艺及其体外抗氧化活性研究[J].食品工业科技,2018,3(40):173-178
[13]钱慧琴,秦晶晶,赵媛,等.月季不同部位总黄酮含量分析及其抗氧化活性研究[J].食品研究与开发,2018,39(20):19-22