本研究利用亚临界水提取、可见分光光度法测定总黄酮含量及其抗氧化活性,并利用响应面法优化了怀菊花中总黄酮的亚临界水提取工艺。首先进行了单因素实验,然后在单因素实验基础上,选择提取温度、提取时间及液固比为自变量,以总黄酮提取...本研究利用亚临界水提取、可见分光光度法测定总黄酮含量及其抗氧化活性,并利用响应面法优化了怀菊花中总黄酮的亚临界水提取工艺。首先进行了单因素实验,然后在单因素实验基础上,选择提取温度、提取时间及液固比为自变量,以总黄酮提取量为响应值,采用Box-Benhnken法设计3因素3水平响应面设计实验,得出最佳工艺:提取温度130℃、提取时间46 min、液固比44∶1 m L/g,总黄酮实际提取量为(71.796±0.24)mg/g,与预测值71.806 mg/g无显著差异。结果表明,怀菊花中的总黄酮有一定的抗氧化活性,并且其含量与抗氧化活性具有一致性。展开更多
Sub-critical water extraction is a brand-new separation technology. This paper mainly discussed the principle, advantages of sub-critical water extraction, and its applications ranging from the medicinal plants tradit...Sub-critical water extraction is a brand-new separation technology. This paper mainly discussed the principle, advantages of sub-critical water extraction, and its applications ranging from the medicinal plants traditionally used in Europe and Asia to produce pharmaceutical extracts (such as volatile oil, tannins, flavonoids, anthraquinone, lactone, etc.). Meanwhile, the prospect of sub-critical water extraction in plant extractives is also explored. It will be widely used in the field of medical plants, bringing huge economic benefits, environmental benefits and social benefits.展开更多
文摘本研究利用亚临界水提取、可见分光光度法测定总黄酮含量及其抗氧化活性,并利用响应面法优化了怀菊花中总黄酮的亚临界水提取工艺。首先进行了单因素实验,然后在单因素实验基础上,选择提取温度、提取时间及液固比为自变量,以总黄酮提取量为响应值,采用Box-Benhnken法设计3因素3水平响应面设计实验,得出最佳工艺:提取温度130℃、提取时间46 min、液固比44∶1 m L/g,总黄酮实际提取量为(71.796±0.24)mg/g,与预测值71.806 mg/g无显著差异。结果表明,怀菊花中的总黄酮有一定的抗氧化活性,并且其含量与抗氧化活性具有一致性。
文摘Sub-critical water extraction is a brand-new separation technology. This paper mainly discussed the principle, advantages of sub-critical water extraction, and its applications ranging from the medicinal plants traditionally used in Europe and Asia to produce pharmaceutical extracts (such as volatile oil, tannins, flavonoids, anthraquinone, lactone, etc.). Meanwhile, the prospect of sub-critical water extraction in plant extractives is also explored. It will be widely used in the field of medical plants, bringing huge economic benefits, environmental benefits and social benefits.
