摘要
目的:研究从山药中提取多糖的方法,以及山药多糖对糖尿病小鼠糖脂代谢紊乱的改善作用。方法:山药粉末经超声辅助提取法得到山药粗多糖,用苯酚-浓硫酸比色法测多糖含量。采用腹腔注射四氧嘧啶的方法构建小鼠糖尿病模型,以格列本脲为对照,观察连续灌胃14天不同剂量山药多糖对糖尿病小鼠血糖(GLU)、总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白-胆固醇(LDL-C)的含量及小鼠体重的影响。结果:490nm为样品的吸收波长,线形回归方程为:Y=0.0054X-0.0044,相关系数R=0.9990(n=5);山药粗多糖的提取率为3.90%,总糖含量为36.72%;山药多糖可有效改善糖尿病小鼠的血糖和血脂代谢紊乱情况,可显著降低糖尿病小鼠体内的血糖(GLU)、总胆固醇(TC)、甘油三酯(TG)及低密度脂蛋白-胆固醇(LDL-C),缓解体重减轻的状况,效果与格列本脲相当。结论:山药多糖具有有效调节糖尿病小鼠糖脂代谢紊乱的作用。
Objective:To study the extraction of yam polysaccharide and its effects on glucose and lipid metabolism in diabetic mice.Method:The content of polysaccharide was determined by ultrasonic-assisted extraction of yam powder.The content was de-tected with Phenol-concentrated sulfuric acid colorimetry.Alloxan was administered intraperitoneally to establish diabetic models in mice.After the success of modeling,the changes of GLU,TC,TG,LDL-G and body mass of mice were examined.Results:The sam-ples'UV absorption was 490run,linear regression equation:Y=0.0054X-0.0044,correlation coefficient R=0.9990(n=5);the extraction rate of yam polysaccharide was 3.90%,total sugar content was 36.72%.Blood glucose and blood lipid levels of diabetic mice were sig-nificantly ameliorated by administration of yam polysaccharide.Compared with diabetic control mice,yam polysaccharide significandy decreased GLU,TC,TG and LDL-G levels of mice,and alleviated the situation of weight loss;the effect is equivalent to glibenclamide.Conclusion:Yam polysaccharide has the effect of regulating the disorder of glucose and lipid metabolism in diabetic mice.
作者
李新萍
周书琦
徐丽丽
刘玉泽
曹东辉
贾绍华
Li Xinping(College of excellence,Harbin University of Commerce,Harbin 150028 China)
出处
《黑龙江医药》
CAS
2018年第1期20-22,共3页
Heilongjiang Medicine journal
基金
黑龙江省大学生创新创业训练计划项目(编号:201610240149)
关键词
山药多糖
提取
糖尿病
血糖
血脂
yam polysaccharide
extraction
diabetes
glucose
blood lipid