Journal ArticleDOI
Potential of halotolerant and halophilic microorganisms for biotechnology.
Rosa Margesin,Franz Schinner +1 more
TLDR
Halotolerant microorganisms play an essential role in food biotechnology for the production of fermented food and food supplements and the degradation or transformation of a range of organic pollutants and theproduction of alternative energy are other fields of applications of these groups of extremophiles.Abstract:
Halotolerant or halophilic microorganisms, able to live in saline environments, offer a multitude of actual or potential applications in various fields of biotechnology. The technical applications of bacteriorhodopsin comprise holography, spatial light modulators, optical computing, and optical memories. Compatible solutes are useful as stabilizers of biomolecules and whole cells, salt antagonists, or stress-protective agents. Biopolymers, such as biosurfactants and exopolysaccharides, are of interest for microbially enhanced oil recovery. Other useful biosubstances are enzymes, such as new isomerases and hydrolases, that are active and stable at high salt contents. Halotolerant microorganisms play an essential role in food biotechnology for the production of fermented food and food supplements. The degradation or transformation of a range of organic pollutants and the production of alternative energy are other fields of applications of these groups of extremophiles.read more
Citations
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Journal ArticleDOI
Biotransformation of textile dyes: a bioremedial aspect of marine environment
R. S. Shertate,Prakash Thorat +1 more
TL;DR: In this paper, the authors used chemical coagulation, Flocculat ion and Precipitation techniques for the removal of dye colors from waste waters, but this method is no t cost beneficial as it generates huge amount of Sludge and to dispose the sludge is major problem.
Book ChapterDOI
Genetic Tools for the Manipulation of Moderately Halophilic Bacteria of the Family Halomonadaceae
Carmen Vargas,Joaquín J. Nieto +1 more
TL;DR: In this review, the most relevant tools are described, with emphasis given to cloning vectors, genetic exchange mechanisms, mutagenesis approaches, and reporter genes for genetic manipulation of moderately halophilic bacteria.
Journal ArticleDOI
Identification of new members of alkaliphilic lipases in archaea and metagenome database using reconstruction of ancestral sequences.
TL;DR: The reconstructed ancestral sequence-based searches increased the sensitivity and efficacies to detect remotely homologous sequences and identified 21 new members of alkaliphilic lipases, most of which showed conserved pentapeptide [X-His-Ser-X-Gly] motif, a key feature of lipase family.
Book ChapterDOI
Extracellular Proteases from Halophilic and Haloalkaliphilic Bacteria: Occurrence and Biochemical Properties
TL;DR: The proteases of halophilic and haloalkaliphilic bacteria from the marine sources appear to have significant role in the detergent industries, ripening of the salted fish, fish sauces and marinades, modifying fish protein concentrations, dehairing and deskinning, non aqueous enzymology and asymmetric catalysis.
Journal ArticleDOI
Chitin Accelerates Activation of a Novel Haloarchaeal Serine Protease That Deproteinizes Chitin-Containing Biomass
Yaoxin Zhang,Mengxin Wang,Xin Du,Wei Tang,Li Zhang,Moran Li,Jian Wang,Bing Tang,Xiao-Feng Tang +8 more
TL;DR: Results demonstrate that SptC is capable of removing proteins from shrimp shell powder (SSP) at high salt concentrations and, Interestingly, N*-IWT released soluble peptides from SSP faster than did MWT, suggesting that ChBD-mediated binding of the autoprocessed complex to chitin in SSP not only accelerates enzyme activation but also facilitates the deproteinization process by increasing the local protease concentration around the substrate.
References
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Journal ArticleDOI
Microbial production of surfactants and their commercial potential.
JD Desai,Ibrahim M. Banat +1 more
TL;DR: Biosurfactants are more effective, selective, environmentally friendly, and stable than many synthetic surfactants, and the most promising applications are cleaning of oil-contaminated tankers, oil spill management, transportation of heavy crude oil, enhanced oil recovery, recovery of crude oil from sludge, and bioremediation of sites contaminated with hydrocarbons, heavy metals, and other pollutants.
Journal ArticleDOI
Potential commercial applications of microbial surfactants.
TL;DR: Biosurfactants are amphiphilic compounds of microbial origin with considerable potential in commercial applications within various industries and have advantages over their chemical counterparts in biodegradability and effectiveness at extreme temperature or pH and in having lower toxicity.
Journal ArticleDOI
Biology of moderately halophilic aerobic bacteria
TL;DR: The moderately halophilic heterotrophic aerobic bacteria form a diverse group of microorganisms and approaches to the study of genetic processes have recently been developed, opening the way toward an understanding of haloadaptation at the molecular level.
Journal ArticleDOI
Bioenergetic Aspects of Halophilism
TL;DR: Examinination of microbial diversity in environments of increasing salt concentrations indicates that certain types of dissimilatory metabolism do not occur at the highest salinities.
Journal ArticleDOI
Halophilic adaptation of enzymes.
TL;DR: It is described how thermodynamic observations, such as parameters pertaining to solvent–protein interactions or enzyme-unfolding kinetics, depend strongly on solvent composition and reveal the important role played by water and ion binding to halophilic proteins.
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