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Dataset on optimization of lignin peroxidase production by Endomelanconiopsis sp. under submerged fermentation using one factor at a time approach.

ABSTRACT: One factor at a time approach was employed for the optimization of media components, physical factors and additional additives for lignin peroxidase (LiP) production under submerged fermentation by the endophytic fungus Endomelanconiopsis sp. The optimized conditions derived were: carbon source (dextrose 10 g/L), nitrogen source (ammonium tartarate 0.027 g/L), veratryl alcohol (1 mM), MnSO4 (0.5 g/L), inoculum concentration (3 mycelial plugs), pH (5), temperature (30 °C) and Tween 80 (1.5%). A 40 fold increase of enzyme activity was observed after the single parameter optimization. The lignin peroxidase (LiP) production to the level of 345.26 ± 0.52 IU/mL indicates that the fungus has the commercial potential for LiP.

SUBMITTER: Nayana P

PROVIDER: S-EPMC7026465 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Dataset on optimization of lignin peroxidase production by Endomelanconiopsis sp. under submerged fermentation using one factor at a time approach.

Nayana P P Aiswarya C C Aparna C K CK Nambisan Padma P

Data in brief 20200206

One factor at a time approach was employed for the optimization of media components, physical factors and additional additives for lignin peroxidase (LiP) production under submerged fermentation by the endophytic fungus Endomelanconiopsis sp. The optimized conditions derived were: carbon source (dextrose 10 g/L), nitrogen source (ammonium tartarate 0.027 g/L), veratryl alcohol (1 mM), MnSO4 (0.5 g/L), inoculum concentration (3 mycelial plugs), pH (5), temperature (30 °C) and Tw ...[more]

PMID: 32099876

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Project description:BACKGROUND:Microorganisms are a rich source of structurally diverse secondary metabolites that exert a major impact on the control of infectious diseases and other medical conditions. The biosynthesis of these metabolites can be improved by manipulating the nutritional or environmental factors. This work evaluates the effects of fermentation parameters on the production of a lactone compound effective against Candida albicans by Penicillium verruculosum MKH7 under submerged fermentation. Design-Expert version8.0 software was used for construction of the experimental design and statistical analysis of the experimental data. RESULTS:The important factors influencing antibiotic production selected in accordance with the Plackett-Burman design were found to be initial pH, temperature, peptone, MgSO4.7H2O. Orthogonal central composite design and response surface methodology were adopted to further investigate the mutual interaction between the variables and identify the optimum values that catalyse maximum metabolite production. The determination coefficient (R2) of the fitted second order model was 0.9852. The validation experiments using optimized conditions of initial pH 7.4, temperature 27 °C, peptone 9.2 g/l and MgSO4.7H2O 0.39 g/l resulted in a significant increase (almost 7 fold from 30 to 205.5 mg/l) in the metabolite production which was in agreement with the prediction (211.24 mg/l). Stability of the compound was also assessed on the basis of its response to physical and chemical stresses. CONCLUSIONS:So far as our knowledge goes, till date there are no reports available on the production of antibiotics by Penicillium verruculosum through media optimization using RSM. Optimization not only led to a 7 fold increase in metabolite yield but the same was achieved at much lesser time (8-10 days compared to the earlier 12-15 days). The enhanced yield of the antibiotic strongly suggests that the fungus P. verruculosum MKH7 can be efficiently used for antibiotic production on a large scale.

Project description:Although synthetic colorants are widely used in many industries due to their high stability at different conditions in industrial processes, evidence of its negative impact on health and the environment is undeniable. Filamentous fungi are well known for their use as alternative sources to produce natural pigments. However, an adequate comparison of the productivity parameters between the fermentation systems could be limited to their heterogeneous conditions. Even though Solid-State Fermentations (SSF) on natural substrates are widely used for pigments production, complex media, and non-controlled variables (T, pH, medium composition), these systems could not only hamper the finding of accurate productivity parameters, but also mathematical modeling and genomics-based optimization. In this context, the present study screened five pigment-producing fungi by comparing Submerged (SmF) and Surface Adhesion Fermentation [biofilm (BF) and Solid-State (SSF)] with defined media and controlled variables. For this purpose, we used the same defined media with sucrose as the carbon source for pigment production on SmF, BF, and SSF, and BF and SSF were carried out on inert supports. Five molecularly identified Penicillium and Talaromyces strains isolated from the Peruvian rainforest were selected for their ability to produce yellowish-orange colorants. Highest productivities were obtained from T. brunneus LMB-HP43 in SmF (0.18 AU/L/h) and SSF (0.17 AU/L/h), and P. mallochii LMB-HP37 in SSF (0.18 AU/L/h). Both strains also exhibited the highest yields (AU/g biomass) in the three fermentation systems, reaching values greater than 18-folds in SSF compared to the other strains. Conversely, T. wortmannii LMB-HP14 and P. maximae LMB-HP33 showed no ability to produce pigments in the SSF system. The performed experiments accurately compared the effect of the fermentation system on yield and productivity. From this, further genomics approaches can be considered for an extensive analysis of pigment synthesis pathways and a genomics-driven optimization in the best fermentation system.

Dataset Information

Dataset on optimization of lignin peroxidase production by Endomelanconiopsis sp. under submerged fermentation using one factor at a time approach.

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Dataset on optimization of lignin peroxidase production by <i>Endomelanconiopsis</i> sp. under submerged fermentation using one factor at a time approach.

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