Biodepollution of wastewater containing phenolic compounds from leather industry by plant peroxidases

• Published in: Biodegradation (Dordrecht) 2011-04, Vol.22 (2), p.389-396
• Main Authors: Diao, Mamounata, Ouédraogo, Nafissétou, Baba-Moussa, Lamine, Savadogo, Paul W., N’Guessan, Amani G., Bassolé, Imael H. N., Dicko, Mamoudou H.
• Format: Article
• Language: English
• Subjects: Allium sativum; Aquatic Pollution; Biodegradation; Biodegradation of pollutants; Biodegradation, Environmental; Biological and medical sciences; Biomedical and Life Sciences; Biotechnology; Botanical; Catalysis; Environment and pollution; Enzymes; Ethanol; Ethyl alcohol; Flowers & plants; Fundamental and applied biological sciences. Psychology; Garlic - enzymology; Geochemistry; Industrial applications and implications. Economical aspects; Industrial Waste; Industrial wastewater; Ipomoea batatas; Ipomoea batatas - enzymology; Leather; Leather & leather products; Leather industry; Life Sciences; Microbiology; Original Paper; Peroxidase; Peroxidases - metabolism; Phenology; Phenols; Phenols - metabolism; Plant Proteins - metabolism; Plants (organisms); Polyethylene glycol; Polyols; Raphanus - enzymology; Raphanus sativus; Soil Science & Conservation; Sorghum - enzymology; Sorghum bicolor; Terrestrial Pollution; Waste Disposal, Fluid; Waste Management/Waste Technology; Waste materials; Waste water; Waste Water Technology; Wastewater; Water Management; Water Pollution Control
• ISSN: 0923-9820; 1572-9729
• DOI: 10.1007/s10532-010-9410-8

This study deals with the use of peroxidases (POXs) from Allium sativum, Ipomoea batatas, Raphanus sativus and Sorghum bicolor to catalyze the degradation of free phenolic compounds as well as phenolic compounds contained in wastewater from leather industry. Secretory plant POXs were able to catalyze the oxidation of gallic acid, ferulic acid, 4-hydroxybenzoic acid, pyrogallol and 1,4-tyrosol prepared in ethanol 2% (v:v) . Efficiency of peroxidase catalysis depends strongly on the chemical nature of phenolic substrates and on the botanical source of the enzymes. It appeared that POX from Raphanus sativus had the highest efficiency. Results show that POXs can also remove phenolic compounds present in industrial wastewater such as leather industry. Removal of phenolic compounds in wastewater from leather industry by POX was significantly enhanced by polyethylene glycol.