Abstract
Enzyme immobilization by metal organic frameworks (MOFs) is an efficient way for screening active constituents in natural products. However, the enzyme’s biocatalysis activity is usually decreased due to unfavorable conformational changes during the immobilization process. In this study, sodium cholate was firstly used as the modifier for zeolitic imidazolate framework-8 (ZIF-8) immobilized lipase to increase both the stability and activity. More importantly, with the help of solubilization of sodium cholate, a total of 3 flavonoids and 6 alkaloids candidate compounds were fished out. Their structures were identified and the enzyme inhibitory activities were verified. In addition, the binding information between the candidate compound and the enzyme was displayed by molecular docking. This study provides valuable information for the improvement of immobilized enzyme activity and functional active ingredients in complicated medicinal plant extracts.
Published Version
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