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  • Immobilization of Candida a...
    Jakovetić Tanasković, Sonja; Jokić, Bojan; Grbavčić, Sanja; Drvenica, Ivana; Prlainović, Nevena; Luković, Nevena; Knežević-Jugović, Zorica

    Applied clay science, January 2017, 2017-01-00, Letnik: 135
    Journal Article

    Lipase B from Candida antarctica was immobilized by adsorption onto laboratory prepared metakaolin. This support has great potential for enzyme immobilization since it has good mechanical characteristics and thermal stability and it is easily obtained from naturally abundant raw kaolin, as presented in this paper. Immobilization process was studied as a function of pH, ionic strength and protein concentration in terms of immobilization and activity yield. It was shown that immobilization occurred via the Langmuir model, and that electrostatic forces were major, but not exclusive contributor for the binding process. The optimum conditions were achieved in 10mM acetic buffer pH5. Biocatalyst obtained under optimum conditions was further successfully used in the synthesis of lipophilic antioxidants, where conversion yields as high as 100% were achieved. •Immobilization of lipase B from Candida antarctica on metakaolin is achieved.•Adsorption of lipase on metakaolin occurs via Langmuir model.•The obtained biocatalyst was successfully used in in the synthesis of lipophilic antioxidants (conversion yield of 100%).