Laccase Activity and Azo Dye Decolorization Potential of Podoscypha elegans

Figures & data

Table 1. Details of the different dyes.

No	Dye and their abbreviations	Molecular details	Chemical nature and use
1	Orange G (OG)	452.37 C16H10N2Na2O7S2 λmax: 482.0 nm	Azo dye used in photography, plastic, paper, textile and wood industry. It is toxic and carcinogenic.
2	Congo Red (CR)	696.7 C32H22N6Na2O6S2 λmax 497 nm	Azo dyes used in fertilizer, pesticides, and optical films, highlighters, textile and is carcinogenic and cytotoxic.
3	Direct Blue 15 (DB)	992.8 C34H28N6O16S4•4Na λmax =610 nm	Mono azo dye and is carcinogenic.
4	Rose Bengal (RB)	1017.46 C20H2Cl4I4Na2O5 λmax: 545 nm	Azo dyes used in apoptosis assay, biological staining photography, recording industry, etc. The dye is genotoxic and microbial toxic.
5	Direct Yellow 27 (DY)	662.62 C25H20N4Na2O9S3 λmax: 393 nm	Azo direct dye used in textile industry.

Figure 1. Enzyme activity and fungal growth of P. elegans in different media compositions.

Figure 2. Laccase and MnP activities in HNHC medium at different days of incubation.

Figure 3. Effect of different parameters on laccase activity in HNHC medium. (A) pH. (B) Temperature. (C) Rotation speed. (D) VA concentrations.

Figure 4. Decolorization percentage of different dyes over 28 days.