Decolourization of Synthetic Textile Dyes using the Edible Mushroom Fungi Pleurotus

Abstract

The ability of three Pleurotus species (P. florida LCJ 65, P. ostreatus LCJ 183 and P. sajorcaju LCJ 184) was compared for the decolourization of bromophenol blue, brilliant green and methylred using by solid and liquid medium. All three Pleurotus species were effective in decolourizing the dyes on potato dextrose agar plate. During quantitative decolourization experiments, the absorption spectrum of the dye solution showed a steady decrease in decolourization with the increase in the days of incubation. The decolourization efficiency varied for species to species and it was found that P. sajorcaju LCJ 184 effectively decolourized the selected dyes by 85-98%. In present study, different factors (dye concentration, inoculums size, pH, static and shaking culture conditions) influencing the ability of Pleurotus species to decolourize three different dyes is documented and the result proposes P. florida LCJ 65 and P. sajorcaju LCJ 184 as potential strains for decolourization ofbromophenol blue, brilliant green and methylred dye.

Degradation of lignocellulosic substrates by Pleurotus ostreatus and Lentinus squarrosulus

“…The decrease in lignin content of groundnut shell observed after 49 days of degradation by Pleurotus ostreatus, Lentinus squarrosulus and consortium of Pleurotus ostreatus and Lentinus squarrosulus showed that these mushrooms can remove lignin bonds that prevent holocellulose from being broken down to simple and fermentable sugar. This observation has been reported to be due to the production of lignindegrading enzymes by these organisms [23][24][25][26]. A similar observation of a decrease in lignin content of degraded groundnut shell by Pleurotus ostreatus for 5 weeks [17] and 30 days [18] has also been reported.…”

Decolorization Potential and Comparative Laccase Activity of Pleurotus Species

“…3). Similar results have been reported in literature in which three Pleurotus spp viz., P. florida, P. ostreatus P. sajor-cajuwere used to study their mycelial growth pattern and decolorized zone formation on PDA (Radhika et al, 2014). Similar results were also reported by Jebapriya and Gnanadoss (2013), for decolorization of bromophenol blue by P. florida and other white rot fungi.…”

“…500 ppm, 200 ppm and 100 ppm of each dyes viz. Bromophenol blue, Crystal violet, Methyl red, Methylene blue and Brilliant blue were poured into 90 mm Petri plates and allowed to solidify under Laminar cabinet (Radhika et al, 2014). The plates were inoculated with 5 mm mycelial disc from 7 days old pure culture and the positive control were used as unsupplemented Agar plates inoculated with respective culture and negative control were used as the un-inoculated plates supplemented with respective dye concentration under laminar air flow chamber and incubated at 25±2˚C.…”

Kahve Telvesi Kullanılarak Boyar Madde Adsorpsiyonu İzoterm, Kinetik ve Termodinamik Çalışmaları

“…Işık geçirgenliği ve gaz çözünürlüğü dengesi etkilendiğinden çözünmüş oksijen seviyesini azalmakta ve aerobik organizmalar için elverişsiz şartlar oluşmaktadır. Bu durum ise aneorobik süreci başlatarak su ekosistemini ciddi şekilde etkilemektedir [3], [4], [5].…”