超频震动膜过滤法在小叶榕叶水提物分离中的应用研究

Filtration Study on Aqueous Extractives of Ficus microcarpa L.f. with Vibratory Shear Enhanced Membrane Filtration

目的比较传统水提醇沉工艺和超频震动薄膜过滤技术分离浓缩小叶榕叶提取液的效果。方法考察、分析不同孔径A,B,C,D膜的过滤稳定性、通量、有效成分收率及除杂,选择合适的膜及运行参数。结果B孔径膜最适合小叶榕叶有效成分的分离,配合D孔径膜,可使分离浓缩连续进行,工序少,周期短,效率高,成本低,能耗低,安全指数高,膜不易堵塞,膜的保存和再生工序简单。结论此法用于小叶榕叶提取液生产,可替代传统的醇沉分离和加热浓缩中总黄酮的分离、浓缩工艺。

Objective To compare the effect of routine water extraction and alcohol precipitation method with vibratory shear enhanced membrane filtration from separating and concentrating aqueous extractives of Ficus microcarpa L.f. Methods Membranes of four different pore size were equipped for the filtration system to investigate the filtration flux, stability, yield of active ingredients and foreign matter removal ability. Results Membrane B showed the best performance in the separation of active ingredients of F. Microcarpace while membrane D could concentrate active ingredients. Vibratory shear enhanced membrane filtration made the separation and concentration consecutively done with a few processes, short cycle time, high efficiency, low cost, low energy expenditure and high reliable index. Conclusion Vibratory shear enhanced membrane filtration is a better technology than routine water extraction and alcohol precipitation method for the separation and concentration of aqueous extractives of Ficus microcarpa L.f.