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投稿时间:2019-10-11
投稿时间:2019-10-11
中文摘要: 对红蓝草总酚酸的提取及其抗氧化活性进行研究。结合单因素考察结果,用响应面法优选红蓝草总酚酸的最佳提取条件,即液料比为28∶1(mL/g),乙醇的浓度为71%,提取温度为70℃,提取时间为90 min,在该条件下红蓝草总酚酸含量为31.574 4 mg/g,与预测值31.860 6 mg/g接近。红蓝草总酚酸体外抗氧化活性评价中,发现其随着浓度增加,其清除能力逐渐增强,但清除率小于Vc。因此,红蓝草总酚酸有一定的抗氧化活性。
Abstract:This study mainly discussed the extraction technology of total phenolic acids from the Peristrophe baphica(Spreng)Bremek(PB)and its antioxidation.Combining with the single factor investigation results,and the optimum extraction condition of total phenolic acids from the PB was determined by the response surface methodology,such as solution and material ratio for 28∶1(mL/g),ethanol concentration for 71%,extraction temperature for 70℃,extraction time for 90 min,and extraction yield of total phenolic acids from the PB reached 31.574 4 mg/g at this condition,and the predictive value of 31.860 6 mg/g.The total phenolic acids in vitro antioxidant activity evaluation,found with the increase of concentration,its removal ability strengthens gradually,but clearance was less than Vc.The total phenolic acids from the PB exhibits certain antioxidant capacity.
keywords: Peristrophe baphica(Spreng.)Bremek total phenolic acids extraction antioxidation response surface methodology
文章编号:202018015 中图分类号: 文献标志码:
基金项目:广西自然科学基金项目(2017GXNSFAA198118);广西教育厅高校科学技术研究项目(KY2015YB265);红水河流域药用资源综合开发利用重点实验室项目;河池学院2018年高层次人才科研启动费项目(XJ2018GKQ012)
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