The molecular weight of nattokinase typically ranges between 25KDa and 35KDa. This molecular weight range enables it to effectively bind with fibrin in the body, thereby exerting its biological activity. However, during the production process of nattokinase, the separation and purification of the fermentation broth significantly impact the final purity of nattokinase.

       Membrane separation technology has been widely applied in processes such as filtration, refining, purification, and concentration of biological fermentation broths. For nattokinase fermentation broth, membrane separation techniques like microfiltration and ultrafiltration can be selected to remove macromolecular impurities and cell debris from the broth, thereby purifying nattokinase. Higher precision ultrafiltration membranes can then be used to further eliminate small molecular impurities, such as small peptides and amino acids, while simultaneously enriching and concentrating nattokinase. This dual approach effectively isolates nattokinase, ensuring its high purity and activity.

        For more information on nattokinase fermentation broth separation and purification technology, please feel free to contact Engineer Zhang from Chongqing Jiahe Filtration Co., Ltd. I will provide tailored technical and equipment solutions based on your specific material conditions.