Studies on Polymeric Dyes. II. : Azo Dyes.(1)
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چکیده
منابع مشابه
Reduction of polymeric azo and nitro dyes by intestinal bacteria.
The O(2)-sensitive reduction of high-molecular-weight aromatic azo and nitro dyes by intestinal bacteria appears to be mediated by low-molecular-weight electron carriers with E(o)' = -200 to -350 mV. This process may allow the design of polymeric azo prodrugs for specific release of certain aromatic amines in the colon.
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The ligninolytic enzyme system of Phanerochaete chrysosporium decolorizes several recalcitrant dyes. Three isolated lignin peroxidase isoenzymes (LiP 4.65, LiP 4.15, and LiP 3.85) were compared as decolorizers with the crude enzyme system from the culture medium. LiP 4.65 (H2), LiP 4.15 (H7), and LiP 3.85 (H8) were purified by chromatofocusing, and their kinetic parameters were found to be simi...
متن کاملThiophene-Based Azo Dyes and Their Applications in Dyes Chemistry
The thiophene-based azo dyes class of azo dyes have generated considerable interest since its discovery 62 years ago. These dyes have come to be applied to a very large number and variety of fibres and have therefore achieved an importance which is probably greater than the weights used would suggest. The connection between dyeing and fastness properties on the one hand and chemical constitutio...
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A total of 47 bacterial isolates were isolated and screened for their ability to degrade selected azo dyes. Of these, one isolates were chosen for further studies based on their ability to degrade a wide spectrum of dyes efficiently and rapidly and identified as Xanthomonas campestris MTCC 10,108. Several microbial cultures Pseudomonas flourecense, Bacillus subtilis and Rhizobium radiobacter pr...
متن کاملStudies on the laccase-mediated decolorization, kinetic, and microtoxicity of some synthetic azo dyes
BACKGROUND Enzymatic elimination of synthetic dyes, one of the most environmentally hazardous chemicals, has gained a great interest during the two last decades. The present study was performed to evaluate the decolorization and detoxification potential of the purified laccase of Paraconiothyrium variabile in both non-assisted and hydroxybenzotriazole-aided form against six azo dyes. RESULTS ...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1969
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.89.4_524