Open AccessMineralization of Melanoidin by H₂O₂ Producing Enzymes from Marine Cyanobacteria Oscillatoria boryana BDU 92181
Author(s) -
D. Kalavathi
Publication year - 2021
Publication title -
european journal of biology and biotechnology
Language(s) - English
Resource type - Journals
ISSN - 2684-5199
DOI - 10.24018/ejbio.2021.2.3.198
Subject(s) - melanoidin , oscillatoria , cyanobacteria , chemistry , hydrogen peroxide , enzyme , biochemistry , effluent , photosynthesis , food science , botany , biology , bacteria , environmental engineering , maillard reaction , genetics , engineering
Intracellular enzymes of Oscillatoria boryana BDU 92181 exhibited mineralizing activity on melanoidin, a recalcitrant pigment present in the distillery wastewater. Melanoidin decolourization was postulated to be due to the production of hydrogen peroxide and molecular oxygen released by the cyanobacterium during photosynthesis. The present study was aimed to find out the efficacy of the marine cyanobacterium O. boryana BDU 92181 in producing H2O2 and enzymes involved in hydrogen peroxide production with a view to utilize its potential for decolorization of melanoidin pigment in the distillery effluent. The enzymes involved in the melanoidin degradation have not so far been attempted with cyanobacteria.
The results obtained in the present work suggested the activity of the glucose oxidase and Manganese peroxidase enzymes in a marine cyanobacterium Oscillatoria boryana BDU 92181 and whose activity was found to be enhanced in the presence of melanoidin.