A Review of Xylanase Production by the Fermentation of Xylan: Classification, Characterization and Applications

Motta, Fernanda Lopes; Andrade, Cristiane Conte Paim de; Santana, M. H. A.

doi:10.5772/53544

Cited by 39 publications

(13 citation statements)

References 115 publications

(181 reference statements)

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“…These results indicated that the expression of these enzymes is influenced by both bacterial proliferation and substrate-induced effects. 37 Moreover, the higher tendencies of the L. brevis ABC for XOS hydrolyzed from WU-AX may also result in XOS utilization, which might reduce the secretion of extracellular enzymes.…”

Section: ■ Discussionmentioning

confidence: 99%

Combination of Xylanase and Debranching Enzymes Specific to Wheat Arabinoxylan Improve the Growth Performance and Gut Health of Broilers

Lei

Shao

Yin

et al. 2016

J. Agric. Food Chem.

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Arabinoxylan (AX) is the major antinutritional factor of wheat. This study evaluated the synergistic effects of xylanase and debranching enzymes (arabinofuranosidase [ABF] and feruloyl esterase [FAE]) on AX. During in vitro tests, the addition of ABF or FAE accelerated the hydrolysis of water-soluble AX (WE-AX) and water-insoluble AX (WU-AX) and produced more xylan oligosaccharides (XOS) than xylanase alone. XOS obtained from WE-AX stimulated greater proliferation of Lactobacillus brevis and Bacillus subtilis than did fructo-oligosaccharides (FOS) and glucose. During in vivo trials, xylanase increased the average daily growth (ADG), decreased the feed-conversion ratio (FCR), and reduced the digesta viscosity of jejunum and intestinal lesions of broilers fed a wheat-based diet on day 36. ABF or FAE additions further improved these effects. Broilers fed a combination of xylanase, ABF, and FAE exhibited the best growth. In conclusion, the synergistic effects among xylanase, ABF, and FAE increased AX degradation, which improve the growth performance and gut health of broilers.

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Section: ■ Discussionmentioning

confidence: 99%

Combination of Xylanase and Debranching Enzymes Specific to Wheat Arabinoxylan Improve the Growth Performance and Gut Health of Broilers

Lei

Shao

Yin

et al. 2016

J. Agric. Food Chem.

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“…. (Motta et al 2013). Hence, it is essential to understand the requirement of substrate concentration in the fermentation medium in order to improve the xylanolytic enzyme complex productivity.…”

Section: Effect Of Initial Medium Ph On Xylanase Productionmentioning

confidence: 99%

“…In addition to xylooligosaccharides produced by the catalytic action, xylanases are of considerable importance in production of functional food additives or alternative sweeteners with beneficial properties (Laxmi et al 2012). Since, no individual xylanase is capable of meeting all the requirements of feed and food industries, more attention has been focused on the xylanase stability under different processing conditions such as pH, temperature and inhibitory ions, in addition to their ability to hydrolyze soluble and insoluble xylan denoting requirement of research efforts for isolation of effective xylanase complex producing microbes (Harris and Ramalingam 2010;Laxmi et al 2012;Motta et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Xylanase Production by Isolated Fungal Strain, Aspergillus fumigatus RSP-8 (MTCC 12039): Impact of Agro-industrial Material as Substrate

et al. 2015

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In the present investigation, the imperative role of agro-industrial biomass for improved xylanase production was evaluated using isolated fungal strain. This isolate was identified as Aspergillus fumigatus RSP-8 (MTCC 12039) based on morphological and 18S rRNA ribotyping and the organism was deposited in MTCC, IMTECH Chandigarh with accession number 12039. The isolated fungal strain is mesophilic in nature and produced maximum xylanase at 30°C, at pH 7 and agitation speed of 150 rpm. Xylanase complex production titers differed with the nature and complexity of carbon source and other physiological growth parameters including aeration, growth temperature, physiological medium pH, initial inoculum levels, etc. Highest xylanase titers (73 U/mL) noticed with hemicellulose isolated from sorghum straw and least with ground nut cake as carbon source among tested agro materials such as rice bran, green gram husk, sorghum straw, groundnut cake and wheat bran. A variation of three fold enzyme titers was observed with different tested carbon sources. Supplementation of glucose as carbon source did not produce any xylanase with this fungal strain revealing the xylanase in this isolate is induced by the carbon source. Variation of hemicellulose concentration as carbon source during the fermentation altered the production xylanase titers. The study suggested that, in xylanase production by A. fumigatus RSP-8, one of the major limiting factors is substrate chemical complexity.

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“…Moreover, these commercial enzymes are still limited by the high cost of production, narrow substrate reaction and instability under industrial process dynamics (Motta et al, 2013). Consequently, considerable efforts are being made to increase microbial cellulase and xylanase production by environmental strains (Kim et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Holocellulase Enzymes, Cellulases (EC 3.2.1.4) and xylanases (EC 3.2.1.8), have increased relevance in several areas of agro-industrial processes including the improvement of nutritional quality of animal feed, quality of dough for various baked products, for cleaning and anti-re-deposition action in detergent industry, cotton softening and denim finishing in textiles industry (Motta et al, 2013). In addition, these enzymes could be employed as environment-friendly means of lignocellulosic waste conversion to various bioproducts (de Souza Vandenberghe et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Optimization of Process Conditions for the Production of Holocellulase by a <i>Bacillus</i> Species Isolated from Nahoon Beach Sediments

Fatokun¹,

Nwodo²,

Olaniran³

et al. 2017

American Journal of Biochemistry and Biotechnology

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Production of holocellulase by a newly isolated marine Bacillus species via submerged fermentation technique at varying cultivation conditions was investigated. Enzyme production was optimized by altering one variable per time. Moreover effect of lignocellulosic saccharides in inducing cellulase and xylanase production was also investigated. The 16S ribosomal Deoxyribonucleic Acid (16S rDNA) gene sequence analysis exhibited 98% sequence similarity of the isolate with other Bacillus species in the gene bank and was deposited with the accession number KX524510. Optimal xylanase and cellulase production was attained at pH 7, temperature 30°C and agitation speed of 50 and 150 rpm. Furthermore, maximum xylanase and cellulase production were both achieved at 60 h corresponding to the late stationary growth stage, with activity of 16.6 and 0.061 U mL −1 respectively. Xylanase production was maximally induced by beechwood xylan, xylose and arabinose with activities of 13.59, 8.78 and 1.90 (U mL −1 ) respectively; while cellulase production was induced by carboxymethyl cellulose only and no cellulase activity was detected in the culture supernatant of the other carbon sources tested. Optimization increased cellulase and xylanase yields being 0.006-0.061 and 0.23-16.6 (U mL −1 ) from unoptimized to optimized respectively. The results of the study suggest the bacterial strain to be a proficient producer of cellulase and xylanase with potentials in biotechnological application.

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A Review of Xylanase Production by the Fermentation of Xylan: Classification, Characterization and Applications

Cited by 39 publications

References 115 publications

Combination of Xylanase and Debranching Enzymes Specific to Wheat Arabinoxylan Improve the Growth Performance and Gut Health of Broilers

Combination of Xylanase and Debranching Enzymes Specific to Wheat Arabinoxylan Improve the Growth Performance and Gut Health of Broilers

Xylanase Production by Isolated Fungal Strain, Aspergillus fumigatus RSP-8 (MTCC 12039): Impact of Agro-industrial Material as Substrate

Optimization of Process Conditions for the Production of Holocellulase by a <i>Bacillus</i> Species Isolated from Nahoon Beach Sediments

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