机构地区: 华南理工大学轻工与食品学院
出 处: 《食品科学》 2009年第24期34-37,共4页
摘 要: 在单因素试验的基础上,利用正交试验法优化紫花杜鹃干燥嫩叶片中黄酮类化合物的工艺条件,得到最佳条件为:紫花杜鹃干燥嫩叶片切片浸泡2h,液料比12:1(ml/g),提取3次,每次1h,并在此基础上,利用膜分离技术对其进行纯化研究。结果表明,将提取液依次通过截留相对分子质量为105、5×104、104的膜后,其纯度可达到46.07%。 In this study, the extraction of flavonoids from Rhododendoni mariae Hance was optimized by the single factor experiments and orthogonal experiment design. The optimized parameters were obtained as follows: 2 h of presoaking of medicinal materials slices, the liquid/solid of 12:1 (ml/g), extracted 3 times and 1 h of each extraction time. The membrane separation technology was applied to purify samples based on these results. The results showed that the purity of the fraction each 46.07% through relative molecular mass 10^5, 5 × 10^4 and 10^4 filters.