Screening of bacterial extracellular xylanase producers with potential for cellulose pulp biobleaching
نویسندگان
چکیده
منابع مشابه
Biobleaching of Bagasse Pulp with Xylanase Enzymes and Hydrogen Peroxide
The effect of the operating conditions (temperature, time, pH, enzyme level and pulp consistency) used in the enzymatic step of a XP (Cartazyme-hydrogen peroxide) sequence for bleaching Kraft pulp from bagasse on various properties of the resulting pulp and paper sheet products was studied. The quality of bagasse used, was examined by its yield, brightness,viscosity and the Kappa number. Finall...
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The biobleachability of soda-anthraquinone pulp from orange tree pruning has been evaluated in this study for the first time. Three different laccase-mediator systems (LMS) have been tested: laccase from Trametes villosa (Tv), either in combination with 1-hydroxybenzotriazole (HBT) or with acetosyringone (AS), and laccase from Myceliophthora thermophila (Mt) in combination with AS. After the LM...
متن کاملbiobleaching of bagasse pulp with xylanase enzymes and hydrogen peroxide
the effect of the operating conditions (temperature, time, ph, enzyme level and pulp consistency) used in the enzymatic step of a xp (cartazyme-hydrogen peroxide) sequence for bleaching kraft pulp from bagasse on various properties of the resulting pulp and paper sheet products was studied. the quality of bagasse used, was examined by its yield, brightness,viscosity and the kappa number. finall...
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Xylanase is a hemicellulase enzyme that catalyses the hydrolysis of xylan to xylose which is widely used in processing of feed, pulp and paper. It is produced by many microorganisms especially filamentous fungi like Trichoderma and Aspergillus. A potential xylanolytic fungal isolate Aspergillus niger was isolated from forest soils of Tirumala, AP, India, and its crude enzyme was checked for its...
متن کاملBiobleaching of Wheat Straw Pulp using Laccase and Xylanase
Wheat straw pulp can be considered to be one of most important raw materials for specialty and functional paper products. Bleaching sequences involving laccase and xylanase were applied to bleach wheat straw pulp. The bleached pulp properties after a sequence of xylanase (X), laccase (L), and extraction (E), i.e. XLE, were compared with those of LE and LEX sequences. It was found that the XLE b...
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ژورنال
عنوان ژورنال: Acta Scientiarum. Biological Sciences
سال: 2019
ISSN: 1807-863X,1679-9283
DOI: 10.4025/actascibiolsci.v41i1.42101