Search for dissertations about: "alkaliphiles"

Found 4 swedish dissertations containing the word alkaliphiles.

  2. 1. An Alkaline Active Cyclodextrin Glycosyltransferase from an Alkaliphilic Bacillus agaradhaerens

    Author : Rita Martins; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cloning; characterization; purification; 16S rRNA gene analysis; screening; alkaliphiles; soda lakes; Bacillus agaradhaerens; cyclodextrins; cyclodextrin glycosyltransferase; alpha-amylase family; sequencing; immobilization; Biotechnology; Bioteknik;

    Abstract : Soda lakes represent the most stable naturally-occurring alkaline environments on Earth and harbour a diverse population of alkaliphiles. Alkaliphilic microorganisms have attracted a great interest due to their ability to produce extracellular enzymes that are active and stable at high pH values. READ MORE

  4. 2. An Alkaline Active Endo-Xylanase from Bacillus halodurans S7:Molecular and Structural Aspects

    Author : Gashaw Mamo; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bioteknik; Biotechnology; Biokemisk teknik; mutagensis; Biochemical technology; xylanase structure; glycoside hydrolase family 10 cloning; Bacillus halodurans; Xylanase; alkaliphiles;

    Abstract : A strain of an alkaliphilic bacterium Bacillus halodurans was isolated from a water sample in Lake Shalla, a soda lake in the Ethiopian Rift Valley. From the culture of this isolate, B. halodurans S7, a xylanase which is active in a wide range of pH, with an optimum at about 9-9.5 was purified. READ MORE

  5. 3. Alkaliphilic Bacillus species and an alkaline active lipolytic enzyme

    Author : Virginia Vargas Calle; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biotechnology; soda lakes; alkaliphilic Bacillus sp.; lipolytic enzyme; Bacillus bogoriensis; Bacillus halodurans; Bioteknik;

    Abstract : The Great Rift Valley running through Eastern Africa contains a large number of soda lakes. These unique lakes constitute among the most stable alkaline environments with a dense and varied population of microorganisms. Such microorganisms are invariable alkaliphiles and are considered to be a promising source of enzymes with unique features. READ MORE

  6. 4. Production, purification and characterization of antibacterial biomolecules from an alkaliphilic Bacillus

    Author : Abolghasem Danesh; Bioteknik; []
    Keywords : ;

    Abstract : Forty alkaliphiles, which were isolated from samples collected in Eastern Africa, have been screened for production of antibacterial compounds. One of these isolates, Bacillus halodurans B20, was able to produce a prominent amount of antibacterial activity against a Gram-positive bacteria on agar plates [paper I] and selected for further study. READ MORE