摘要:
目的:研究黄精及其植物复配多糖最佳提取工艺并对其进行人体保湿评价。方法:通过单因素实验及正交实验确定了黄精多糖的最佳提取工艺参数;以多糖含量为指标通过均匀设计实验确定黄精复配其他植物多糖最优原材料组合,通过单因素实验及正交实验确定了黄精复配其他植物多糖的最佳提取工艺参数;并对黄精多糖及黄精复配其他植物多糖进行了人体保湿评价实验。结果:在温度为50 ℃,时间为2.5 h,料液比为1∶90 g/mL条件下,黄精多糖的含量为(3.90±0.01) mg/g。在温度为50 ℃,时间为2 h,料液比为1∶50 g/mL条件下,植物复配多糖的含量为(4.17±0.13) mg/g。黄精多糖具有即时保湿的功效,0.5 h时,皮肤水分含量达到62.261 C.U.;随着时间增加,植物复配多糖的保温效果逐渐增强,4 h时水分含量达到61.13 C.U.。结论:本实验为黄精及其植物复配多糖的进一步深入研究提供了坚实的理论基础。
Abstract:
Objective:The extraction process for polysaccharides of Polygonatum and its prescription were optimized,and the moisturizing effect of human body was evaluated. Methods:The optimum extraction parameters of Polygonatum polysaccharides were determined by single factor experiment and orthogonal experimental design. The optimum proportion of plant mixed polysaccharides was confirmed by uniform design experiment with the content of the total polysaccharides. The optimum extraction parameters of plant mixed polysaccharides were determined by single factor experiment and orthogonal experimental design. Then the extracts were to evaluate the moisture retention capacity of human body. Result:The optimal extraction conditions of Polygonatum polysaccharides were determined as solid to solvent ratio of 1∶90 g/mL,extraction time of 2.5 h,extraction temperature of 50 ℃,and under the optimum conditions,the content of Polygonatum polysaccharides was(3.90±0.01) mg/g.The optimal extraction conditions of plant mixed polysaccharides were obtained as following:solid to solvent ratio,1∶50 g/mL;extraction time,2 h,extraction temperature,50 ℃,and under the optimum conditions,the content of plant mixed Polysaccharides was(4.17±0.13) mg/g. The Polygonatum polysaccharide had the effect of immediate moisturizing,and the moisture measurement value(MMV)reached 62.261 C.U. at 0.5 h. With the increase of time,the moisturizing effect of plant mixed polysaccharides was gradually increasing,and the MMV reached 61.13 C.U.at 4 h. Conclusion:it experiment provides a theoretical basis for further research on Polygonatum polysaccharides and its prescription polysaccharides.