Sökning: "Lactococcus"

Visar resultat 6 - 10 av 14 avhandlingar innehållade ordet Lactococcus.

1. 6. Beta-glucose 1-phosphate interconverting enzymes in Lactococcus lactis: physiological role and regulation in maltose, trehalose and glucose metabolism

   Författare :Ulrika Andersson; Teknisk mikrobiologi; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi; Biochemical technology; Biokemisk teknik; bacteriology; Microbiology; Kemiteknik och kemisk teknologi; Chemical technology and engineering; trehalose 6-phosphate phosphorylase; beta-phosphoglucomutase; maltose phosphorylase; glucose; trehalose; maltose; Lactococcus lactis; beta-glucose 1-phosphate;

   Sammanfattning : Lactic acid bacteria (LAB), including Lactococcus lactis, are abundant in nature. These bacteria convert carbohydrates into mainly lactate by a rather uncomplicated metabolism. An improved understanding of the physiological and genetical mechanisms involved in carbohydrate metabolism and its regulation will improve the industrial use of LAB. LÄS MER

3. 7. Vitreoscilla Haemoglobin - Peroxidase Activity and Metabolic Aspects

   Författare :Malin Kvist; Tillämpad biokemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; metabolism; Biokemi; Metabolism; Biochemistry; Naturvetenskap; Natural science; lipid peroxidation; hypoxia; salt stress; Escherichia coli; Lactococcus lactis; hydrogen-bonding network; proximal site; mutations; Vitreoscilla haemoglobin; peroxidase activity; Proteins; enzymology; Proteiner; enzymologi;

   Sammanfattning : The function of non-vertebrate haemoglobins (Hbs) appears more diverse than that of vertebrate Hbs, possibly reflecting the various demands to be met among their hosts. Sharing structural features with other haem proteins/enzymes, Hbs display a qualitative overlap in activities with functions extending beyond oxygen transport/storage. LÄS MER

4. 8. Characterization of respiratory physiology in Lactococcus lactis for high-yield production of high-performance starter cultures

   Författare :Anna Johanson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; batch cultivations; lag phase; haemin haem; respiration-permissive conditions; aerobic growth; Lactic acid bacteria; acidification activity; continuous cultivations; starter culture production;

   Sammanfattning : Fermented food products are consumed world-wide, every day, and the demand is growing as intake increases. Lactococcus lactis is a lactic acid bacterium commonly used as a starter culture to produce fermented dairy products. LÄS MER

5. 9. Antagonistic properties of lactic acid bacteria : purification and characterization of a bacteriocin produced by Lactococcus lactis ssp. lactis

   Författare :Elín Gudmundsdóttir; Chalmers tekniska högskola; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; lanthibiotics; purification; nisin; bacteriocins; lactic acid bacteria;

   Sammanfattning : .... LÄS MER

7. 10. Physiology of Industrially Relevant Bacteria: Freeze-drying tolerance of Lactobacillus reuteri and Pseudomonas chlororaphis and product formation of Lactococcus lactis metabolizing maltose

   Författare :Johan Palmfeldt; Teknisk mikrobiologi; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; virologi; mykologi; Microbiology; bacteriology; virology; mycology; bakteriologi; Mikrobiologi;

   Sammanfattning : When the metabolic activity of bacteria is exploited by the food and biotechnology industries, freeze-drying is commonly used to produce concentrated bacterial cultures with enhanced storage stability. The freeze-drying tolerance of the probiotic strain Lactobacillus reuteri and the biocontrol agent Pseudomonas chlororaphis has been characterized in this work. LÄS MER