title: Biodecolorization and biodegradation potential of recalcitrant triphenylmethane dyes by Coriolopsis sp. isolated from compost.
abstract: Triphenylmethane dyes (TPM) are recalcitrant colorants brought into the environment. In this study, a lesser-known white rot fungus Coriolopsis sp. (1c3), isolated from compost of Empty Fruit Bunch (EFB) of oil palm, was explored for its decolorization potential of TPM dyes. The isolate 1c3 demonstrated good decolorization efficiencies in the treatment of Crystal Violet (CV; 100 mg l(-1)), Methyl Violet (MV; 100 mg l(-1)) and Cotton Blue (CB; 50 mg(-1)), with 94%, 97% and 91%, within 7, 7 and 1 day(s), respectively. Malachite Green (MG; 100 mg l(-1)) was the most recalcitrant dye, with 52% decolorization after 9 days. Dye removal by 1c3 was presumably via biosorption, whereby the process was determined to be influenced by fungal biomass, initial dye concentrations and oxygen requirements. Biodegradation was also a likely mechanism responsible for dye removal by 1c3, occurred as indicated by the reduction of dye spectra peaks. Detection of laccase, lignin peroxidase and NADH-DCIP reductase activities further substantiate the possible occurrence of biodegradation of TPM dyes by 1c3.
authors.affiliation: School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 46150 Petaling Jaya, Selangor, Malaysia.
authors.forename: Si Hui
authors.initials: SH
authors.lastname: Chen
authors.affiliation: School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 46150 Petaling Jaya, Selangor, Malaysia. Electronic address: adelsuyien@yahoo.com.
authors.forename: Adeline Su
authors.initials: AS
authors.lastname: Yien Ting
mesh_terms: D001673:Biodegradation, Environmental; D004396:Coloring Agents / Q000737:chemistry / Q000378:metabolism*; D005658:Fungi / Q000378:metabolism*; D006801:Humans; D000073878:Palm Oil; D010938:Plant Oils; D012987:Soil; D014320:Triphenylmethyl Compounds / Q000378:metabolism*
chemical_list: D004396:Coloring Agents; D010938:Plant Oils; D012987:Soil; D014320:Triphenylmethyl Compounds; D000073878:Palm Oil; C046945:triphenylmethane
keywords: Biodegradation; Coriolopsis sp.; Dye decolorization; EFB compost; Triphenylmethane dyes