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  • Title: Lipase-inorganic hybrid nanoflower constructed through biomimetic mineralization: A new support for biodiesel synthesis.
    Author: Jiang W, Wang X, Yang J, Han H, Li Q, Tang J.
    Journal: J Colloid Interface Sci; 2018 Mar 15; 514():102-107. PubMed ID: 29247821.
    Abstract:
    We reported a facile, economic and green method based on biomimetic mineralization to acquire lipase-inorganic hybrid nanoflower, which was then employed as a biocatalyst for biodiesel production. In the hybrid nanoflower, enzyme molecules and Cu2+ ions were utilized as the organic and inorganic components, respectively. The morphology of nanoflower and the distribution and loading of proteins were systematically characterized by scanning electron microscopy, confocal laser scanning microscopy and ultraviolet-visible spectroscopy, which indicated the successful encapsulation of lipase in the hybrid nanoflower. Using the hydrolysis of p-nitrophenyl caprylate as a model, lipase-inorganic hybrid nanoflower was observed to possess favorable catalytic activity and stability in the ester hydrolysis. Further, the hybrid nanoflower was used as a catalyst for biodiesel production, in which it could convert sunflower oil to biodiesel with 96.5% conversion and remain 72.5% conversion after being used for 5 cycles. Thus, the lipase-inorganic hybrid nanoflower is potential to be used as an economically viable biocatalyst for the production of biofuel as the future petrol-fuel replacement.
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