SciELO - Scientific Electronic Library Online

vol.51Minimal residual disease in prostate cancer patients after primary treatment: theoretical considerations, evidence and possible use in clinical managementThe physiological and molecular mechanism of brassinosteroid in response to stress: a review author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google


Biological Research

Print version ISSN 0716-9760


CABRERA, Ma. Ángeles  and  BLAMEY, Jenny M.. Biotechnological applications of archaeal enzymes from extreme environments. Biol. Res. [online]. 2018, vol.51, 37.  Epub Nov 28, 2018. ISSN 0716-9760.

To date, many industrial processes are performed using chemical compounds, which are harmful to nature. An alternative to overcome this problem is biocatalysis, which uses whole cells or enzymes to carry out chemical reactions in an environmentally friendly manner. Enzymes can be used as biocatalyst in food and feed, pharmaceutical, textile, detergent and beverage industries, among others. Since industrial processes require harsh reaction conditions to be performed, these enzymes must possess several characteristics that make them suitable for this purpose. Currently the best option is to use enzymes from extremophilic microorganisms, particularly archaea because of their special characteristics, such as stability to elevated temperatures, extremes of pH, organic solvents, and high ionic strength. Extremozymes, are being used in biotechnological industry and improved through modern technologies, such as protein engineering for best performance. Despite the wide distribution of archaea, exist only few reports about these microorganisms isolated from Antarctica and very little is known about thermophilic or hyperthermophilic archaeal enzymes particularly from Antarctica. This review summarizes current knowledge of archaeal enzymes with biotechnological applications, including two extremozymes from Antarctic archaea with potential industrial use, which are being studied in our laboratory. Both enzymes have been discovered through conventional screening and genome sequencing, respectively.

Keywords : Antarctica; Archaea; Extremozymes; Biocatalysis.

        · text in English     · English ( pdf )