Improving Aspergillus niger tannase yield by N+ ion beam implantation
نویسندگان
چکیده
منابع مشابه
Some factors affecting tannase production by Aspergillus niger Van Tieghem
One variable at a time procedure was used to evaluate the effect of qualitative variables on the production of tannase from Aspergillus niger Van Tieghem. These variables including: fermentation technique, agitation condition, tannins source, adding carbohydrates incorporation with tannic acid, nitrogen source type and divalent cations. Submerged fermentation under intermittent shaking gave the...
متن کاملA novel tannase from Aspergillus niger with beta-glucosidase activity.
An extracellular tannase was produced from solid-state cultures of Aspergillus niger. The enzyme was purified to homogeneity from the cell-free culture broth by preparative isoelectric focusing and by FPLC using anion-exchange and gel-filtration chromatography. SDS-PAGE analysis as well as gel localization studies of purified tannase indicated the presence of two enzyme forms, with molecular ma...
متن کاملCatalytical Properties of Free and Immobilized Aspergillus niger Tannase
A fungal tannase was produced, recovered, and immobilized by entrapment in calcium alginate beads. Catalytical properties of the immobilized enzyme were compared with those of the free one. Tannase was produced intracellularly by the xerophilic fungus Aspergillus niger GH1 in a submerged fermentation system. Enzyme was recovered by cell disruption and the crude extract was partially purified. T...
متن کاملImprovement of tannase production under submerged fermentation by Aspergillus niger FBT1 isolated from a mangrove forest
Aspergillus niger FBT1, a local extracellular strain for tannase production, was isolated from soil collected from Matang Mangrove Forest Reserve in Perak, Malaysia. This fungus strain was cultivated in an Erlenmeyer flask under a submerged fermentation system. Medium compositions play a very important role in enhancing enzyme production during fermentation. The production of tannase by A. nige...
متن کاملCharacterization And Application Of Tannase Produced By Aspergillus Niger ITCC 6514.07 On Pomegranate Rind
Extracellular tannase and gallic acid were produced optimally under submerged fermentation at 37 (0)C, 72 h, pH 5.0, 10 %(v/v) inoculum and 4 %(w/v) of the agroresidue pomegranate rind (PR) powder by an Aspergillus niger isolate. Tannic acid (1 %) stimulated the enzyme production by 245.9 % while with 0.5 % glucose, increase was marginal. Tannase production was inhibited by gallic acid and nitr...
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ژورنال
عنوان ژورنال: Brazilian Archives of Biology and Technology
سال: 2013
ISSN: 1516-8913
DOI: 10.1590/s1516-89132013000100018