High-level xylanase production by alkaliphilic Bacillus pumilus ASH under solid-state fermentation

Battan, Bindu; Sharma, Jitender; Kuhad, Ramesh Chander

doi:10.1007/s11274-006-9173-x

Cited by 57 publications

(51 citation statements)

References 32 publications

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“…The optimum temperature for maximum xylanase production by B. subtilis ASH in SSF was found to be 37°C [60], which was in close agreement with our observation. The similar optimum temperature ranges for xylanase production in SSF were reported by Beg et al [61] and Battan et al [5]. In contrast, the highest xylanase production by thermophilic B. licheniformis A99 was observed at 50°C [19].…”

Section: Effect Of Different Temperaturesupporting

confidence: 84%

“…Aspergillus flavus AT-2 and Aspergillus niger AT-3 revealed maximum cellulase production under SSF with an inoculum size of 5% [66]. In contrast, B. licheniformis A99, B. pumilus ASH 7411 and B. subtilis ASH were reported to produce highest xylanase when as high as 15% inoculum level was used [5,19,60]. Likewise, a 10% inoculum was also documented as optimum for production of xylanase by B. megaterium under SSF [67].…”

Section: Effect Of Inoculum Sizementioning

confidence: 99%

“…NSPs comprise up to 90% of the plant cell wall [3], wherein cellulose, hemicellulose and pectin are the most abundant [4]. Xylan is considered as the major structural component of plant cell wall and the most abundant copious renewable hemicellulose [5]. Generally dietary NSPs remain indigestible and cannot be used as an energy source.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, removal of ANFs through implementation of processing techniques has been suggested to improve nutritive value of the crude oil-cakes and thereby incorporation of the processed oil-cakes at higher levels in the animal feeds satisfying to meet increasing demand to replace conventional protein sources [7]. Studies advocated that processing of oil seed cakes through physical (e.g., water soaking and heat treatment) or biological (seed germination) [5] methods were not effectual in reducing the contents of ANFs. In contrast, solid state fermentation (SSF) has been evidenced with reduction in cellulose [8] and other ANFs [9] in the plant ingredients.…”

Section: Introductionmentioning

confidence: 99%

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Bio-processing of Linseed Oil-Cake through Solid State Fermentation by Non- Starch Polysaccharide Degrading Fish Gut Bacteria

Banerjee¹,

Ghosh²

2016

Ferment Technol

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Cellulose and hemicellulose (xylan) are the most common Non-Starch Polysaccharides (NSPs) present in plant ingredients that exhibit anti-nutritional effect. Degradation of cellulose and xylan has been investigated under solidstate fermentation (SSF) using oil-cakes, viz., groundnut oil-cake (GOC), mustard oil-cake (MOC), sunflower oilcake (SOC), sesame oil-cake (SeOC) and linseed oil-cake (LOC) as substrates. Finally LOC was considered in the present study as it contained maximum amount of cellulose (17.51 ± 0.87 g 100 g -1 ) and xylan (13.02 ± 0.66 g 100 g-1 ). Bio-processing of LOC was carried out through SSF in two different combinations utilizing efficient cellulaseand xylanase-producing strains, Bacillus pumilus KF640221 (Set-I) and Bacillus tequilensis KF640219 (Set-II), isolated previously from the proximal intestines of rohu, Labeo rohita and silver carp, Hypophthalmichthys molitrix, respectively. Analysis of the fermentation sets revealed that B. pumilus KF640221 in Set-I was most effective in reducing the cellulose and xylan contents of LOC. Besides, SSF under optimized conditions caused considerable increase in crude protein, crude lipid, total free amino acids and total free fatty acids along with reduction in the contents of other anti-nutritional factors, e.g., crude fiber, tannins, phytic acid and trypsin inhibitor. High performance liquid chromatography (HPLC) analysis of raw and fermented LOC of Set-I indicated that concentrations of methionine, histidine, tryptophan, phenylalanine, threonine were increased considerably. Further research is inevitable to explore the possibilities for utilization of SSF-processed LOC to set up a strategy for sustainable utilization of low cost oil-cakes as animal feed ingredients.

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Section: Effect Of Different Temperaturesupporting

confidence: 84%

Section: Effect Of Inoculum Sizementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bio-processing of Linseed Oil-Cake through Solid State Fermentation by Non- Starch Polysaccharide Degrading Fish Gut Bacteria

Banerjee¹,

Ghosh²

2016

Ferment Technol

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“…Xylanase production by Bacillus licheniformis strain SC using media M-II with different agricultural wastes at further higher concentrations under submerged fermentation indicated that wheat bran (23.86 U/ml) acted as a best substrate for the maximum enzyme production followed by corn cob(15.87 U/ml) after 48 h. The level of enzyme was 14.57 U/ml with sugarcane bagasse and 11.24 U/ml rice bran after 24 h (Figure 3). Using wheat bran as a substrate different strains of Bacillus as (2 %, w/v) Bacillus pumilus 17 , Bacillus coagulans BL69 18 , Bacillus megaterium 19 …”

Section: Medium Optimizationmentioning

confidence: 99%

Phylogenetic Analysis, Optimization of Nutritive Media Composition and Immobilization of Xylanase Enzyme Produced by Bacillus Licheniformis Strain Sc

Chaturvedi¹,

Kohli²,

Singh³

et al. 2014

Int. Res. J. Pharm.

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Enzyme productions by microorganisms are increasing with rising cost and finite supply of fossil energy. Microorganisms required for the conversion of lignocellulosic materials into fermentable sugars. A newly Bacillus was isolated from decaying wood and identified for high xylanase activity. It was identified as Bacillus licheniformis strain (KJ842626) by 16S rRNA gene sequencing and by different biochemical tests. The phylogenetic relations to other xylanolytic bacteria were also analyzed. The immobilization of enzyme had been done by gel entrapment process with final concentration of 4 % agar and 1 % agarose solution. The immobilized enzyme might be advantageous for industrial applications therefore the immobilization of cells for higher xylanase production. From the above investigations it was concluded that xylanase produced by Bacillus has industrially application in different industry and the cell entrapment composed of agar and agarose exhibited higher activity and better operational stability.

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Biotechnological Applications of Biocatalysts from the Firmicutes Bacillus and Geobacillus Species

Satyanarayana

Sharma

Mehta

et al. 2011

Microorganisms in Sustainable Agriculture and Biotechnology

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High-level xylanase production by alkaliphilic Bacillus pumilus ASH under solid-state fermentation

Cited by 57 publications

References 32 publications

Bio-processing of Linseed Oil-Cake through Solid State Fermentation by Non- Starch Polysaccharide Degrading Fish Gut Bacteria

Bio-processing of Linseed Oil-Cake through Solid State Fermentation by Non- Starch Polysaccharide Degrading Fish Gut Bacteria

Phylogenetic Analysis, Optimization of Nutritive Media Composition and Immobilization of Xylanase Enzyme Produced by Bacillus Licheniformis Strain Sc

Biotechnological Applications of Biocatalysts from the Firmicutes Bacillus and Geobacillus Species

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