丹参水提物吸湿性及其成分初步研究

Preliminary Study on Moisture Absorption and Related Components of Aqueous Extract of Salviae Miltiorrhizae Radix et Rhizoma

目的探索丹参水提物浸膏的吸湿性及其相关成分。方法分别对丹参水提物及其大孔树脂吸附分离的水、醇洗脱部位浸膏的吸湿性进行测定,并对其所含低分子糖类(单糖-低聚糖)、多糖、蛋白质、氨基酸、鞣质及丹酚酸B等进行分析。结果采用D101型大孔树脂分离纯化后,丹参水提物的水洗脱部位吸湿性增强,糖类、蛋白质等亲水性物质含量明显增加,丹酚酸含量降低至1.76 mg/g;醇洗脱部位的吸湿性及亲水性物质的含量明显降低,丹酚酸B含量增至146.57 mg/g。结论丹参水提物浸膏的吸湿性与其所含低分子糖类等亲水性强的成分密切相关。D101型大孔树脂分离纯化丹参水提物不但可有效富集其所含酚酸类有效成分,而且可大幅降低浸膏得率与浸膏的吸湿性。

Objective To explore the moisture absorption and related components of aqueous extract of SalviaeMiltiorrhizae Radix et Rhizoma.Methods The hygroscopicity of aqueous extract of Salviae Miltiorrhizae Radix etRhizoma and its water and alcohol elution parts separated by macroporous resin was measured,and the contained lowmolecular sugars(monosaccharides,oligosaccharide),polysaccharide,protein,amino acid,tannins and salvianolicacid B,etc.were analyzed.Results D101macroporous resin was used for separation and purification of aqueousextract of Salviae Miltiorrhizae Radix et Rhizoma.The hygroscopicity of water elution parts was enhanced;carbohydrate,protein and other hydrophilic substances content increased;the content of salvianolic acid B wasreduced to1.76mg/g.While the hygroscopicity and hydrophilic substances of alcohol elution parts were greatlyreduced;the content of salvianolic acid B increased to146.57mg/g.Conclusion The hygroscopicity of aqueousextract of Salviae Miltiorrhizae Radix et Rhizomais closely related to the contained strong hydrophilic components,such as low molecular sugars,etc.Using D101macroporous resin to purify aqueous extract of Salviae MiltiorrhizaeRadix et Rhizoma can not only effectively gather the contain phenolic acids active ingredients,but also sharplydecrease the extract yield and extract moisture absorption.