Extremophiles and Their Peptides, Proteins and Enzymes

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 1615

Special Issue Editor


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Guest Editor
Department of Chemistry, Pukyong National University, Busan 48513, Republic of Korea
Interests: cold-active enzymes; psychrophilic proteins; ice-binding proteins; antifreeze proteins; cold-adaptation
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Special Issue Information

Dear Colleagues,

Microorganisms can not only survive but also thrive in almost all niches of the environment on our planet. Not surprisingly, more than two thirds of microorganisms can be classified as extremophiles, such as hyperthermophiles, thermophiles, psychrophiles, acidophiles, basophiles, halophiles, piezophiles, etc. Their extreme habitats confer unique properties to these microorganisms. Some of these properties have led to significant progress in life science and have made a lasting impact on society—for example, Taq DNA polymerase. In addition, they have great potential to be used in biotechnology, industry, and biomedicine. Although the amount of genomic and proteomic data on extremophiles has increased continuously, thanks to advances in next-generation sequencing and bioinformatics, only a fraction of their proteins and enzymes have been utilized.

This Special Issue of Applied Sciences on “Extremophiles and Their Peptides, Proteins and Enzymes” will cover but not be limited to reviews and recent findings regarding the isolation, characterization, engineering, structure determination of proteins and enzymes, and their applications.

Prof. Dr. Hak Jun Kim
Guest Editor

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Keywords

  • extremophilic enzymes
  • extremophilic proteins
  • extremophilic peptides
  • folding and stability
  • expression system
  • protein design and engineering
  • X-ray crystal structure
  • NMR solution structure
  • microevolution
  • metagenomics
  • molecular dynamics simulation
  • industrial enzymes
  • fermentation
  • applications

Published Papers (1 paper)

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Research

17 pages, 3214 KiB  
Article
Saline Sediments as a Suitable Source for Halophilic Inoculums to Degrade Azo Dyes in Synthetic and Real Textile Wastewaters by Microbial Electrochemical Systems
by Sirine Saadaoui, Benjamin Erable, Nesrine Saidi, Luc Etcheverry, Mohamed Neifar, Ahmed Salaheddine Masmoudi, Rim Driouech, Ameur Cherif and Habib Chouchane
Appl. Sci. 2023, 13(9), 5581; https://doi.org/10.3390/app13095581 - 30 Apr 2023
Cited by 1 | Viewed by 1336
Abstract
The treatment of textile wastewater (TWW) loaded with recalcitrant azo dyes in bioelectrochemical systems (BES) rather than in physicochemical processes is a low-cost and environmentally friendly process. The main objective of this study is to investigate the potential of different saline sediments collected [...] Read more.
The treatment of textile wastewater (TWW) loaded with recalcitrant azo dyes in bioelectrochemical systems (BES) rather than in physicochemical processes is a low-cost and environmentally friendly process. The main objective of this study is to investigate the potential of different saline sediments collected from extreme Tunisian environments for the formation of bioanodes capable ofsimultaneous azo dyes degradation and electric current generation in synthetic (STWW) and real textile wastewaters (RTWW) characterized by a varied composition of azo dyes and a high salinity. The obtained bioanodes and anolytes were studied comparatively by electrochemical, microscopic, analytical, and molecular tools.Based on the UV–visible spectra analysis, the breakdown of the azo bond was confirmed. With RTWW, the BES achieved a chemical oxygen demand (COD) abatement rate of 85%with a current density of 2.5 A/m2. Microbial community analysis indicated that a diverse community of bacteria was active for effluent treatment coupled with energy production. At the phylum level, the electrodes were primarily colonized by proteobacteria and firmicutes, which are the two phyla most involved in bioremediation. The analysis of the microbial community also showed the abundance of Marinobacter hydrocarbonoclasticus and Marinobacter sp. species characterized by their high metabolic capacity, tolerance to extremophilic conditions, and role in hydrocarbon degradation. Full article
(This article belongs to the Special Issue Extremophiles and Their Peptides, Proteins and Enzymes)
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