Bioremediation of Dyes Using Ultrafine Membrane Prepared from the Waste Culture of Ganoderma lucidum with in-situ Immobilization of Laccase

Guohui Li, Qingqing Wang, Pengfei Lv, Zhongyang Ding, Fenglin Huang, Qufu Wei, Lucian A. Lucia

Abstract


A one-step method for laccase production and immobilization using the waste culture of Ganoderma lucidum (G. lucidum) was developed, and the laccase was immobilized by the mycelium, which was in the form of a white membrane consisting of superfine fibers. This medical and edible membrane was characterized by scanning electron microscope (SEM), and the fiber diameter was found to be between 1 and 3 μm, with a porous structure formed in the membrane. Fourier transform infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA) showed that the membrane contained polysaccharide groups and had good thermal resistivity. The membrane was used for the decolorization of methyl violet and malachite green, while the MTT test showed that the membrane had good biocompatibility. The experimental results indicated that the membrane might be applicable for other environmental protection applications in the future.

Keywords


Ultrafine fibrous membrane; Polysaccharide; Fungi; Ganoderma lucidum; Laccase

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Welcome to BioResources! This online, peer-reviewed journal is devoted to the science and engineering of biomaterials and chemicals from lignocellulosic sources for new end uses and new capabilities. The editors of BioResources would be very happy to assist you during the process of submitting or reviewing articles. Please note that logging in is required in order to submit or review articles. Martin A. Hubbe, (919) 513-3022, hubbe@ncsu.edu; Lucian A. Lucia, (919) 515-7707, lucian.lucia@gmail.com URLs: bioresourcesjournal.com; http://ncsu.edu/bioresources ISSN: 1930-2126