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Biotechnology Of Microbial Xylanases Enzymology Molecular Biology And Application Pdf

biotechnology of microbial xylanases enzymology molecular biology and application pdf

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Published: 29.04.2021

A detailed overview of xylanases: an emerging biomolecule for current and future prospective

Xylanase EC 3. As such, it plays a major role in micro-organisms thriving on plant sources for the degradation of plant matter into usable nutrients. Xylanases are produced by fungi, bacteria, yeast, marine algae, protozoans, snails, crustaceans, insect, seeds, etc. However, the principal commercial source of xylanases is filamentous fungi. Commercial applications for xylanase include the chlorine -free bleaching of wood pulp prior to the papermaking process, and the increased digestibility of silage in this aspect, it is also used for fermentative composting. Apart from its use in the pulp and paper industry , xylanases are also used as food additives to poultry; in wheat flour for improving dough handling and quality of baked products [1] ; for the extraction of coffee, plant oils, and starch; in the improvement of nutritional properties of agricultural silage and grain feed; and in combination with pectinase and cellulase for clarification of fruit juices and degumming of plant fiber sources such as flax, hemp, jute, and ramie. A good quantity of scientific literature is available on key features of xylanase enzymes in biotechnology ranging from their screening in microbial sources to production methods, characterization, purification and applications in commercial sector.

Biotechnology of Microbial Xylanases: Enzymology, Molecular Biology, and Application

Metrics details. Xylan is the second most abundant naturally occurring renewable polysaccharide available on earth. It is a complex heteropolysaccharide consisting of different monosaccharides such as l -arabinose, d -galactose, d -mannoses and organic acids such as acetic acid, ferulic acid, glucuronic acid interwoven together with help of glycosidic and ester bonds. Xylanases are abundantly present in nature e. Microbial xylanases show varying substrate specificities and biochemical properties which makes it suitable for various applications in industrial and biotechnological sectors. The suitability of xylanases for its application in food and feed, paper and pulp, textile, pharmaceuticals, and lignocellulosic biorefinery has led to an increase in demand of xylanases globally. Hemicelluloses consist of xylan, a heteropolysaccharide substituted with monosaccharides such as l -arabinose, d -galactose, d -mannoses and organic acids such as acetic acid, ferulic acid, glucuronic acid interwoven together with help of glycosidic and ester bonds Collins et al.

Metrics details. The utilization of raw biomass components such as cellulose or hemicellulose for the production of valuable chemicals has attracted considerable research interest in recent years. One promising approach is the application of microorganisms that naturally convert biomass constituents into value added chemicals. One of these organisms — Ustilago maydis — can grow on xylan, the second most abundant polysaccharide in nature, while at the same time it produces chemicals of biotechnological interest. In this study, we present the identification of an endo-1,4-beta xylanase responsible for xylan degradation.

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The xylan degrading enzyme, xylanase can be used to develop eco-friendly technologies mainly in the paper and pulp industries. By using this enzyme, the lignocelluloses materials can be modified to produce high quality liquid fuel and other products. There is a wide range of applications for the xylanase as an enzyme and more with thermostable xylanase.

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  1. Nazario L.

    01.05.2021 at 11:16

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  2. David H.

    08.05.2021 at 12:48

    In this review, a comprehensive discussion exclusively on bacterial xylanases; their gene organization; different factors and conditions affecting enzyme yield and activity; and their commercial application have been deliberated in the light of recent research findings and extensive information mining.

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