Optimization of xylanase production by Melanocarpus albomyces IIS68 in solid state fermentation using response surface methodology

Narang, Someet; Sahai, Vaibhav; Bisaria, Virendra S.

doi:10.1016/s1389-1723(01)80164-x

Cited by 51 publications

(13 citation statements)

References 11 publications

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“…By optimizing the medium composition and the culture conditions, not only the production of xylanase was enhanced but also the cost of enzyme production was reduced since a cheap and readily available complex fermentation substrate was used as carbon source. Successful application of RSM to enhance xylanase production by several microorganisms, such as Sclerotium rolfsii [35], Melanocarpus albomyces [36] and Trichoderma longibrachiatum [37,38], Penicillium oxalicum ZH-30 [39], B. circulans D1 [40] has been reported. Pham et al [41] described the optimization of culture medium for the production of xylanase by Bacillus sp.…”

Section: Discussionmentioning

confidence: 99%

Alkaline xylanases from Bacillus mojavensis A21: Production and generation of xylooligosaccharides

Haddar

Driss

Frikha

et al. 2012

International Journal of Biological Macromolecules

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Section: Discussionmentioning

confidence: 99%

Alkaline xylanases from Bacillus mojavensis A21: Production and generation of xylooligosaccharides

Haddar

Driss

Frikha

et al. 2012

International Journal of Biological Macromolecules

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“…Many studies reported similar effects with intermediate or higher moisture contents favoring the production of xylanolytic enzymes by fungi as Aspergillus niger (MACIEL et al, 2008), Fusarium oxysporum (XIROS et al, 2008a), Melanocarpus albomyces (NARANG et al, 2001), Neurospora crassa (XIROS et al, 2008b), Paecilomyces themophila (YANG et al, 2006), Penicillium brasilianum (MAMMA et al, 2007) and Penicillium canescens (BAKRI et al, 2003). Furthermore, it is noteworthy that the xylanase and α-Larabinofuranosidase productions were much higher when the moisture was provided by Vogel's salt solution than the production obtained in cultures moisturized with distilled or tap water.…”

Section: Resultsmentioning

confidence: 93%

Solid-state fermentation of brewer’s spent grain for xylanolytic enzymes production by Penicillium janczewskii and analyses of the fermented substrate

Terrasan

Carmona

2015

Biosci. J.

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ABSTRACT:In recent decades, increasing interest has been devoted to xylanolytic enzymes due to their potential use in many industrial processes. This study describes the production of xylanase, β-xylosidase and α-Larabinofuranosidase, belonging to the xylanolytic complex, by Penicillium janczewskii using brewer's spent grain as substrate for solid-state fermentation. The optimized conditions for high levels of xylanase, β-xylosidase and α-Larabinofuranosidase production were: 50% initial moisture, which was provided by Vogel's salt solution, seven days of cultivation at 20-30 °C. Fermentation enriched the bioproduct with some amino acids and did not add mycotoxins to it. The use of brewer's spent grain as substrate for fungal cultivation and enzyme production can both add value to this waste and reduce the production cost of xylanolytic enzymes.

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“…The interactive effect between any two independent variables on xylanase production keeping the remaining variables at their central coded level can be studied from the 3D surface curves and contour plots. Elliptical contour plots indicate significant interaction between the corresponding variables while insignificant interaction by circular contour plots (Narang et al, 2001). Figure 1 show the interactive responses between process variables with wheat bran as carbon source, xylan as additive, peptone and yeast extract as nitrogen source and MgSO 4 as metal ion.…”

Section: Optimization Using Rsmmentioning

confidence: 99%

Response surface optimization of xylanase production by indigenous thermoalkalophillic Bacillus sp.

Shanthi¹,

Roymon²

2015

Afr. J. Microbiol. Res.

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Xylanases are an important class of hydrolytic enzymes with a wide range of industrially important applications especially in paper and pulp industry. The present study aimed to take the advantage of statistical approach of optimization to investigate the interactive effects of prominent process factors involved in xylanase production. A novel bacterial isolate Bacillus sp. MCC 2727 was isolated from soil possessing xylanase producing ability at alkaline pH (9.2) and optimum temperature of 50°C. Using the conventional one-factor-at-a-time method, low cost agricultural waste; wheat bran, combination of peptone and yeast extract served as best carbon and nitrogen sources, respectively. MgSO 4 as metal salt and xylan as additive increased the xylanase productivity. Central composite design and response surface methodology were used to optimize these significant process parameters and for evaluation of interactive factors. Maximum xylanase activity of 205.3 IU/ml was obtained with 5% wheat bran, 1% each of yeast extract, peptone, xylan and MgSO 4 which was in consensus with the predicted value (207.2 IU/ml) which proved the validity and the accuracy of the statistical approach of optimization.

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Optimization of xylanase production by Melanocarpus albomyces IIS68 in solid state fermentation using response surface methodology

Cited by 51 publications

References 11 publications

Alkaline xylanases from Bacillus mojavensis A21: Production and generation of xylooligosaccharides

Alkaline xylanases from Bacillus mojavensis A21: Production and generation of xylooligosaccharides

Solid-state fermentation of brewer’s spent grain for xylanolytic enzymes production by Penicillium janczewskii and analyses of the fermented substrate

Response surface optimization of xylanase production by indigenous thermoalkalophillic Bacillus sp.

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