Pectin with high molecular weight can be used to prepare supersonic centrifuge membrane and electric osmoticmembrane because of its better gelatification.
高分子量果胶因具有良好的胶凝特性，可用于制备超速离心膜和电渗析膜。
2
The membrane cannot maintain the osmotic balance of nutrients (sugar) inside the yeast cell and the by-products (alcohol) outside.
渗透膜不能保持营养平衡(制糖)酵母细胞内的副产品(乙醇)之外。
3
Therefore, osmotic phenomenon exists in the system of shale and water based fluid, but shale is a non-perfect semipermeable membrane.