Study on Extraction of Polysaccharides from Flos Hibiscus and Its Antioxidation Activity

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Cao, Jiyun^1 ; Li, Xiufen^2

College of Life Science, Dezhou University, Dezhou, China^1

Institute of Forestry and Pomology, Shanghai Academy of Agricultural Sciences, Shanghai

201106, China^2

关键词: Anti-oxidation activities;    Extraction temperatures;    Hot water extraction;    Hydroxyl free radicals;    Orthogonal experiment;    Scavenging activities;    Single-factor experiments;    Superoxide anion radicals;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/5/052016/pdf
DOI  :  10.1088/1755-1315/170/5/052016

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Polysaccharides were extracted from Flos Hibiscus by hot water extraction technique. Based on the results of single-factor experiments, the effects of extraction temperature, extraction time, mass ratio of solvent to material and extraction times on the extraction yield of polysaccharides were investigated by orthogonal experiment. The clearance effect of polysaccharides from Flos Hibiscus on hydroxyl free radical ( • OH) and (O2-) superoxide anion radicals was investigated. Design as follows: extraction temperature 80° C, extraction time 3h, ratio of solvent to material 30:1ml/g. Under such conditions, the extraction yield of polysaccharide was 5.22%. The results also showed that the order of factor affecting the extraction yield of polysaccharide was extraction temperature > extraction time > ratio of solvent to material. The polysaccharides from Flos Hibiscus had strong scavenging activity against hydroxyl free radicals and superoxide radicals.