库拉索芦荟与斑纹芦荟的多糖含量比较研究

目的：测定不同年限的库拉索芦荟与斑纹芦荟的多糖含量。方法以D-甘露糖为对照品，采用紫外分光光度法，测定生长年限为1、2、3、4及5年的库拉索芦荟和斑纹芦荟的多糖含量，并对其进行比较分析。结果甘露糖在0.05～0.60 g/L范围内与吸光度呈良好的线性关系(r＝0.9985)，测得生长年限为1、2、3、4及5年的库拉索芦荟多糖含量分别为1.201、1.485、1.665、2.355、5.040 mg/g；斑纹芦荟的多糖含量分别为0.780、0.900、1.035、1.650、2.355 mg/g。结论不同生长年限的库拉索芦荟和斑纹芦荟的多糖含量有差别，其含量随年限增长而增加，相同年限库拉索芦荟的多糖含量明显高于斑纹芦荟。

Comparative study on the content of polysaccharide in Aloe barbadensis Miller and Aloe ;vera L. Var. Chinensis (Haw.) Berger

Objective To determine the content of polysaccharide in Aloe barbadensis Miller and Aloe vera L. Var. Chinensis(Haw.)Berger. Methods Carubinose was used as reference substance, measured and compared polysaccharide content with the method of UV spectrophotometry at 610 nm absorbance of growth years for 1, 2, 3, 4 and 5 years of Aloe barbadensis Miller and Aloe vera L. Var. Chinensis(Haw.)Berger. Results The mannose and the absorbance was linear (r=0.998 5) in the range of 0.05 - 0.60 g/L, and the content of Aloe barbadensis Miller polysaccharide in the measured growth period was respectively 1.201, 1.485, 1.665, 2.355 and 5.040 mg/g. The content of polysaccharide in Aloe vera L. Var. Chinensis(Haw.)Berger was 0.780, 0.900, 1.035, 1.650 and 2.355 mg/g. Conclusions The content of polysaccharide in Aloe barbadensis Miller and Aloe vera L. Var. Chinensis(Haw.)Berger differed in growth years, which increased with aging and polysaccharide content in the same age of Aloe barbadensis Miller was significantly higher than that of the Aloe vera L. Var. Chinensis(Haw.)Berger.