银耳、透骨草、谷精草提取物的制备及其复配物的功效评价

Preparation of tremella, speranskiae tuberculatae and eriocaulon buergerianum extracts and their performance in cosmetics

采用正交试验对银耳子实体多糖、透骨草抑菌成分以及谷精草总黄酮提取条件优化,并对3种提取物复配后的产物进行护肤功效评价。结果表明,优化条件下银耳子实体多糖得率32.15%,透骨草提取物稀释5倍后抑菌圈直径为22.2 mm,谷精草黄酮得率为0.067%。对3种提取物复配比例优化,结果显示,复配产物保湿效果与1%透明质酸钠接近,抑菌圈明显,自由基清除率在测试条件下超过80%。试验为中草药提取物在化妆品中应用提供理论依据。

The extraction conditions of tremella fruiting body polysaccharides,speranskia grass composition and flos eriocauli valley of flavonoids were optimized by orthogonal test,and the efficacy of three extracts in skin care products were evaluated.The results showed that on the optimized conditions,the yield of tremella fruiting body polysaccharides was 32.15%,and that of flos eriocauli flavone 0.067% as well.The diameter of bacteria inhibition zone of speranskia grass extract,diluted 5 times before test,was 22.2mm.The mixture of three extracts,with optimized proportion,showed obvious bacteriostatic ring,the similar moisturizing effect as 1% sodium hyaluronate product,and the free radical clearance was over 80% at the same time under the test condition.This study provided theoretical basis for the application of herbal extracts in cosmetics.