草珊瑚水溶性粗多糖提取及抗氧化性能研究

Study on Extraction and Antioxidant Activity of Polysaccharides from Sarcandra glabra

研究了草珊瑚水溶性粗多糖的提取工艺及抗氧化性能。采用单因素试验和L9(34)正交试验设计,考察了提取温度、时间、料液比、提取次数等因素对提取率的影响,并采用水杨酸法考察草珊瑚粗多糖抗氧化性能。结果表明,温度是影响粗多糖提取的重要因素。优化工艺条件为:提取温度95℃、提取时间4h、料液比1:20、提取三次。抗氧化实验表明草珊瑚粗多糖有较好的抗氧化活性。

Study on the extraction technology and antioxidant activity of polysaccharides from Sarcandra glabra. Single factor test and orthogonal test design methods L9（3^4） were applied to analyze the influencing factors such as extraction temperature, extraction time, material-water ratio and extraction times on the extraction of the polysaccharides. The salicylic acid method was used to inspect the ability to antioxidant activity of polysaccharides from Sarcandra glabra. Results showed that temperature was an important factor for the extraction rate of the polysaccharides. The optimum extraction conditions were as follows： extraction temperature 95℃, material-water ratio 1：20, extraction time 4 h and extraction times 3. The experiment of antioxidant activity shows that Sarcandra glabra polysaccharides has good antioxidant activity.