Banana skin: a novel material for a low-cost production of laccase

Details Banana skin: a novel material for a low-cost production of laccase Banana skin: a novel material for a low-cost production of laccase

2008-01-22

arxiv.org/abs/0801.3337v1

Physics

Chemical Physics

Master Thesis (Chemical Engineering Department, Rovira i Virgili University, Spain) Supervisors: Susana Rodriguez Couto and Jo

Scientific paper

Laccases (benzenodiol: oxygen oxidoreductases; EC 1.10.3.2) are multicopper oxidases of wide substrate specificity mainly found in white-rot fungi, which are the only microorganisms able to degrade the whole wood components, but they are also expressed in bacteria and higher plants. Laccases are used currently in biotechnological processes because this enzyme oxidizes both phenolic and non-phenolic lignin-related compounds as well as highly recalcitrant environmental pollutants. In this work banana skin has been selected as a supporting material for laccase produntion because of its high content in carbohydrates, which due to their organic nature are easily metabolized by the fungus. In addition, its content in ascorbic acid exerts an inhibitory effect against bacteria. The activity of the produced laccase is tested in decoloration studies.

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