title: Comparative analysis of bioremediation potential of adapted and non-adapted fungi on azo dye containing textile effluent.
abstract: About 4 different predominant adapted fungal strains (screened from effluent sample) Aspergillus sp., Penicillium sp., Fusarium sp. and Mucor sp. and 4 predominant non-adapted strains (screened from soil, water and fungal fruiting bodies) Aspergillus sp., Penicillium sp., Fusarium sp. and Rhizopus sp., with potential dye decolorization ability on Reactive black 5, Amido black-10B, Red 5B, Reactive red 120 and Anthraquinone violet R were isolated. These organisms were used to develop a consortium which was used in analyzing the bioremediation efficiency on textile effluents containing a mixture of azo dyes. There was about 67% of reduction in color along with 34% of COD reduction by non-adapted fungal consortium while effective bioremediation efficiency was observed in adapted fungal consortium (Color 75% and COD 50%). The regression co-efficient for Langmuir and Freundlich adsorption isotherms were found to be higher for adapted fungal consortium (R2 = 0.97 and R2 = 0.92) than the non-adapted consortium (R2 = 0.97 and R2 = 0.85) proving that both monolayer and multilayer adsorption of dyes were observed on treating the samples with the adapted fungal consortium. On analyzing the results observed through chi-square test, the calculated value (28.712) was higher than the tabulated value (9.49) at a 4 degree freedom hence the hypothesis was rejected. So, there was an association between adapted fungal consortium and non-adapted fungal consortium and hence the adapted fungal consortium could be considered potentially useful for the bioremediation of textile effluent.
authors.affiliation: PG and Research Department of Microbiology, PSG College of Arts and Science, Coimbatore-641014, Tamil Nadu, India.
authors.forename: R
authors.initials: R
authors.lastname: Rajendran
authors.forename: S
authors.initials: S
authors.lastname: Karthik Sundaram
authors.forename: P
authors.initials: P
authors.lastname: Prabhavathi
authors.forename: B V
authors.initials: BV
authors.lastname: Sridevi
authors.forename: V
authors.initials: V
authors.lastname: Gopi
mesh_terms: D000222:Adaptation, Physiological; D000580:Amido Black / Q000737:chemistry / Q000378:metabolism; D000880:Anthraquinones / Q000737:chemistry / Q000378:metabolism; D001391:Azo Compounds / Q000737:chemistry / Q000378:metabolism*; D001673:Biodegradation, Environmental; D004396:Coloring Agents / Q000737:chemistry / Q000378:metabolism*; D005658:Fungi / Q000302:isolation & purification / Q000378:metabolism* / Q000502:physiology*; D007194:India; D007220:Industrial Waste; D015394:Molecular Structure; D009282:Naphthalenesulfonates / Q000737:chemistry / Q000378:metabolism; D013784:Textiles; D014227:Triazines / Q000737:chemistry / Q000378:metabolism
chemical_list: D000880:Anthraquinones; D001391:Azo Compounds; D004396:Coloring Agents; D007220:Industrial Waste; D009282:Naphthalenesulfonates; D014227:Triazines; C017009:anthraquinone violet; C042516:reactive red 120 dye; C063421:Remazol black B; D000580:Amido Black