Dual application of agricultural residues for xylanase production and dye removal through solid state fermentation

Kaushik, Prachi; Mishra, Abhishek; Malik, Anushree

doi:10.1016/j.ibiod.2014.08.006

Cited by 33 publications

(9 citation statements)

References 31 publications

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“…Glucoamylase activity peaked at day 5 with a value of 107.10 ± 2.63 U/g db , followed by a constant decrease. These results are in line with those obtained by Kaushik et al [ 41 ], who determined when Aspergillus lentulus showed the highest xylanase production via SsF using WB as the substrate and yeast extract as the nitrogen source. The fermentation profile showed a gradual increase in enzyme activity from 24 to 72 h, reaching its maximum value after 96 h and diminishing after 120 h until 144 h of fermentation [ 41 ].…”

Section: Resultssupporting

confidence: 92%

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Integration of Solid State and Submerged Fermentations for the Valorization of Organic Municipal Solid Waste

Martău

Unger

Schneider

et al. 2021

JoF

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Solid state fermentation (SsF) is recognized as a suitable process for the production of enzymes using organic residues as substrates. However, only a few studies have integrated an evaluation of the feasibility of applying enzymes produced by SsF into subsequent hydrolyses followed by the production of target compounds, e.g., lactic acid (LA), through submerged-liquid fermentations (SmF). In this study, wheat bran (WB) was used as the substrate for the production of enzymes via SsF by Aspergillus awamori DSM No. 63272. Following optimization, cellulase and glucoamylase activities were 73.63 ± 5.47 FPU/gds and 107.10 ± 2.63 U/gdb after 7 days and 5 days of fermentation, respectively. Enzymes were then used for the hydrolysis of the organic fraction of municipal solid waste (OFMSW). During hydrolysis, glucose increased considerably with a final value of 19.77 ± 1.56 g/L. Subsequently, hydrolysates were fermented in SmF by Bacillus coagulans A166 increasing the LA concentration by 15.59 g/L. The data reported in this study provides an example of how SsF and SmF technologies can be combined for the valorization of WB and OFMSW.

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Section: Resultssupporting

confidence: 92%

“…All these parameters affect microbial growth and are connected directly with enzyme production. Various reports cover different fermentation times for enzyme production via SsF, between 3 and 12 days [ 24 , 30 , 41 , 42 ]. Figure 3 shows total reducing sugars, cellulase and glucoamylase activity during 10 days of WB fermentation.…”

Section: Resultsmentioning

confidence: 99%

Integration of Solid State and Submerged Fermentations for the Valorization of Organic Municipal Solid Waste

Martău

Unger

Schneider

et al. 2021

JoF

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“…The molecular weight of the active enzyme was estimated using the plot of log value of weight of the markers versus the Rf value of the markers. Rf value is calculated as the ratio of distance migrated by the marker or sample to that migrated by the marker dye-front [7].…”

Section: Characterization Of Xylanase Produced From Amentioning

confidence: 99%

Production and Characterization of Xylanases from Fungal Isolate Aspergillus Terreus and Development of Low Cost Fermentation Media

Kaushik¹,

Pant²

2016

JOMB

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Fungal isolate, Aspergillus terreus, was utilized for the production of hydrolytic enzymes through solid state fermentation of wheat bran. After 5 days of incubation, 116 U/g xylanase, 1.53 fpu/g cellulase and 16.99 cmc/g carboxymethyl cellulase was produced. The optimum pH and temperature for the activity of xylanase enzyme was found to be pH 5 and 60º C. The zymogram analysis of the native enzyme shows the presence of single xylanase band with the molecular weight of 91.67 KDa. Low cost nutrient supplements such as the corn cob as the carbon substrate and biogas slurry as the nitrogen supplement can offer a low cost medium for the production of xylanase enzyme by A. terreus. 

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“…Recent studies also reported signicant enhancement in activity of fungal crude enzyme under optimal conditions. [29][30][31] It is worth noticing that the observed COD solubilization with fungal crude enzyme was higher than the previously reported value during thermal pretreatment of Chlorella vulgaris. 32 Similarly, relatively lower biomass solubilization (<29% COD) was reported during biological pretreatment of algal biomass by Alzate et al 2 Moreover, the observed values are at par with those reported from ultrasonic (62% COD solubilisation) and thermal (63% COD solubilisation) pretreatment of algal biomass.…”

Section: Resultsmentioning

confidence: 60%

Enhanced methane production from algal biomass through short duration enzymatic pretreatment and codigestion with carbon rich waste

et al. 2015

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Anaerobic digestion of algal biomass faces problems of low digestibility due to cell wall resistance and inappropriate carbon to nitrogen ratio. In the present work a short duration method involving fungal crude enzyme based pretreatment of algal biomass was disclosed. The effect of fungal crude enzymes on algal biomass was assessed qualitatively through visual and microscopic observations and quantitatively through measuring algal biomass solubilization. Up to 50% biomass COD solubilization was observed within 150 min of pretreatment under optimal conditions. Subsequent anaerobic digestion of pretreated algal biomass showed production of 324.38 mL CH 4 g À1 VS fed as compared to 254.73 mL CH 4 g À1 VS fed from untreated algal biomass. Interestingly, methane yield increased up to 413.89 mL g À1 VS fed when pretreated algal biomass was codigested with cattle dung. On the other hand, sugarcane bagasse had a negative effect on algal biomass codigestion due to its poor digestibility. Overall, the present attempt showed promising results by improving methane yield from algal biomass though pretreatment and codigestion.

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Dual application of agricultural residues for xylanase production and dye removal through solid state fermentation

Cited by 33 publications

References 31 publications

Integration of Solid State and Submerged Fermentations for the Valorization of Organic Municipal Solid Waste

Integration of Solid State and Submerged Fermentations for the Valorization of Organic Municipal Solid Waste

Production and Characterization of Xylanases from Fungal Isolate Aspergillus Terreus and Development of Low Cost Fermentation Media

Enhanced methane production from algal biomass through short duration enzymatic pretreatment and codigestion with carbon rich waste

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