Recent Advances and Industrial Applications of Microbial Xylanases: A Review

Dhiman, Sunny; Mukherjee, Gunjan

doi:10.1007/978-981-13-0393-7_19

Cited by 23 publications

(31 citation statements)

References 81 publications

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“…to form mainly xylobiose, xylotriose, and a small fraction of xylooligosaccharides with a higher degree of polymerization [1].The enzyme has gained a massive interest due to its potential contribution in pulp and paper industry, production of xylooligosaccharides, texture promotion of bakery products, textile industry, development in nutritional value of pig and poultry feed, fruit softening and clarification of juices and wines, detergents, bioconversion of lignocellulosic material and agro-wastes to fuels, extraction of coffee, plant oils and pigments, retting of plant fibers, and so on [2]. An increase in the no of articles and reports DOI: http://dx.doi.org/10.22192/ijarbs.2017.04.09.010…”

Section: Introductionmentioning

confidence: 99%

Industrial application of glutaraldehyde activated immobilized xylanase for clarification of tomato juice

2017

Int. J. Adv. Res. Biol. Sci

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Xylanase is being utilized in many industries and fruit juice clarification is one of them. The industrial use of a free xylanase enzyme is finite because it is expensive and is structurally unbalanced in free form and not stable at high pH and temperature, which can be reduced by entrapment of xylanase upon an insoluble support. Immobilization of xylanase enzyme can be done within sodium alginate beads using entrapment technique. In this study amalgamation of sodium alginate and calcium chloride (0.44 M) was used for the preparation of immobilized beads. After the enzyme is immobilized it is applied on tomato juice which can be obtained by simple extraction .The turbidity and viscosity of juice is due the presence of polysaccharides like cellulose, hemicelluloses, starch, pectin etc. Therefore, juices needs be clarified before commercialization in market. Treatment of tomato juice with xylanase under optimized conditions resulted in an increase in reducing sugars, juice clarity, filterability, pH and but a decline in turbidity and viscosity. Immobilized xylanase was more effective in improving tomato juice overall acceptability and quality as compared to its soluble counterpart. The results showed xylanase, in immobilized form, is a potential candidate for use in fruit juice clarification. The clarity of juice is measured by comparing the transmittance of both samples that is tomato juice treated with xylanase and juice not treated with xylanase.

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Section: Introductionmentioning

confidence: 99%

Industrial application of glutaraldehyde activated immobilized xylanase for clarification of tomato juice

2017

Int. J. Adv. Res. Biol. Sci

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“…Xylan is present in the secondary cell wall of trees and it forms an interface between lignin and other hemicelluloses. It is one of the most abundant polysaccharide in nature 4 . It is present both in hardwoods and softwoods and account for 20-35% of the total dry weight in tropical plants and 8% in temperate soft woods 5 .…”

Section: Introductionmentioning

confidence: 99%

Production and Evaluation of Extracellular Xylanase From Gut Microbes of Dry-Wood Termites: Paper Industry

Shanmugam¹,

Balasubramanian²,

Gurumoorthy³

2017

Int. Res. J. Pharm.

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Termites play a major role in tropical and subtropical ecosystems. They depend on plants debris and decaying wood for nutrition and helps in recycling the nutrition back to the ecosystem. Since the wood consist of various types of hemicelluloses compounds which highly varies in structure and properties, there is a need for a wide range of digestive enzymes and the termites cannot produce all the enzymes. They are depende nt on the symbiotic microbes for the complete digestion of the consumed wood matter. These microbes found in the guts are able to synthesis enzymes, which are good both in quality and quantity. In this study the microbes capable of producing xylanase enzyme was screened and the m ost potential strain (zone of clearance 2.1cm) was isolated by Congo red dye staining. Such microbe was identified as actinomycetes by using 16s rRNA sequencing and this sequence was searched for similar matches using multiple sequence alignment in BLAST tool. The actinomycetes species was identified as Streptomyces avidinii and it was further used for the production of the enzyme. The optimum enzyme activity was observed in sixth day culture with a concentration of 0.5% Birchwood Xylan. The produced enzyme was then partially purified by using Ammonium sulfate precipitation followed by dialysis. The pulp bleaching ability of the enzyme was calculated from the treatment with the enzyme for a time period of 120 minutes there is a significant reduction in kappa number from 67.66 to 34.58. This passes to apply xylanase enzyme in the paper industry instead of chemicals for bleaching.

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“…Therefore, xylanase presents a challenging opportunity. Other application of xylanase is in the detergent industry, as it improves the cleaning ability of detergents that are more efficient in cleaning fruit, vegetable, soils and grass stains (Kumar et al, 2004;Dhiman et al, 2008). …”

Section: Surfactantsmentioning

confidence: 99%

“…are effective in a broader pH range of 5-9, with the optimum temperature for xylanase activity between 35ºC to 60ºC Motta et al, 2013). Bacterial strains studied for their xylanase activity (Amore et al, 2014;Dhiman et. al, 2008).…”

Section: Bacterial Xylanasesmentioning

confidence: 99%

Microbial Xylanases and Their Industrial Applications as Well as Future Perspectives: A Review

Sharma¹,

Sharma²

2017

GJBAHS

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Xylan is the most abundant and principal type of hemicellulose. It is a linear polymer of β-D xylopyranosyl units linked by (1-4) glycosidic bonds. Xylanases are most predominantly present in plant cell walls and are produced by different kinds of microorganisms like bacteria, fungi, protozoans and some yeast. Cellulase-free xylanases are important in pulp biobleaching as alternatives to the use of toxic chlorinated compounds because of the environmental hazards and diseases caused by the release of the adsorbable organic halogens. Xylanases has a wide range of applications in pulp and paper, food, animal feed, textiles and pharmaceuticals. In this review, we have focused on the studies of structural composition of xylan, sources of xylanases, production of xylanases and their potential industrial applications.

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Recent Advances and Industrial Applications of Microbial Xylanases: A Review

Cited by 23 publications

References 81 publications

Industrial application of glutaraldehyde activated immobilized xylanase for clarification of tomato juice

Industrial application of glutaraldehyde activated immobilized xylanase for clarification of tomato juice

Production and Evaluation of Extracellular Xylanase From Gut Microbes of Dry-Wood Termites: Paper Industry

Microbial Xylanases and Their Industrial Applications as Well as Future Perspectives: A Review

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