Isolation and molecular characterization of dye tolerant bacteria from dye contaminated soil in Kerala
Language: English
Published by GRIN Verlag, 2017
- Softcover
- New
Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
AbeBooks seller since August 14, 2006
Condition: New
£ 41.35
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Druck auf Anfrage Neuware - Printed after ordering - Scientific Study from the year 2017 in the subject Biology - Micro- and Molecular Biology, grade: 1.5, Mar Augusthinose College, language: English, abstract: The dyes are complex chemical compounds that imparts colour to substances. On the urge of urbanisation, the use of synthetic dyes is increasing largely and its untreated effluent release causes serious environmental pollution affecting water bodies by disturbing the aquatic ecosystem, soil, plants, animals, humans. The recalcitrant nature of these dyes limits its treatment using conventional methods wherein biological methods using microorganisms are reported to completely mineralize the dyes lowering the release of degradation products.The present work focuses on the biodegradation of synthetic dyes by isolating bacteria from a dyeing unit. Soil samples from the dye contaminated soils was collected, its degradation potentiality was observed using three major dye of studies congo red, brilliant green and methylene blue within 24 hr incubation. Maximum decoloarized dye (congo red and brilliant green) were chosen, serially diluted to 10-5 and plated to obtain two distinct colonies from decolorized congo red (CR1, CR2) and three distinct colonies from decolorized brilliant green (BG1, BG2, BG3). These isolates were biochemically characterized.Molecular characterization was performed by isolating DNA from five isolates and amplified it using PCR, with the 16s rRNA gene primer. The PCR amplification product having approximately 1500bp were sequenced, edited and searched using BLAST against the known sequences within NCBI databases. The isolates were identified to be CR1 as Pseudomonas (88% identity), CR2 as Aeromonas (89% identical) and BG1/BG2 were confirmed to belong to same genus as Bacillus (99% identical). The phylogenetic tree showed a clear divergence between isolated species. Furthermore, the dye tolerance of isolates were observed by optimization analysis to be as CR1 and CR2 tolerated up to 4% of congo red dye and among BG1, BG2 and BG3; BG1 tolerated up to 0.50% of brilliant green dye. Thus, CR1 and CR2 were observed to be potent azo dye decolourizers. Recombinant DNA Technology can be applied in this field that can make the above future application more reliable.…
Seller Inventory # 9783668446885
- Title
- Isolation and molecular characterization of dye tolerant bacteria from dye contaminated soil in Kerala
- Author
- Nimisha Vinod
- Publisher
- GRIN Verlag
- Publication year
- 2017
- Condition
- Neu
- Binding
- Taschenbuch
- Language
- English
- ISBN 10
- 3668446881
- ISBN 13
- 9783668446885
- Item weight
- 141 grams
- Dimensions
- 210x148x7 mm
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