Sökning: "Lactic acid bacteria"

Visar resultat 16 - 20 av 69 avhandlingar innehållade orden Lactic acid bacteria.

1. 16. Fermented probiotic beverage based on quinoa : Functionality, hygiene, and health effects

   Författare :Pamela Rosario Canaviri Paz; Avdelningen för livsmedel och läkemedel; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Quinoa grains; Fermentation; Lactic acid bacteria; Probiotics; Food safety; Starter culture; Polyphenol compounds; Microbiota composition; Functional food; Gut microbiota;

   Sammanfattning : White quinoa grains were used as a source of novel beneficial microorganisms and as a matrix for development of a fermented plant-based drink. Studies on the quinoa grain microbiota were performed by applying spontaneous fermentation to allow isolation of autochthonous Lactiplantibacillus strains with potential to be used as starter cultures. LÄS MER

3. 17. Probiotics and berry-associated polyphenols: catabolism and antioxidative effects

   Författare :Maja Jakesevic; Avdelningen för livsmedel och läkemedel; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bilberry; Rosehips; Chokeberry; Probiotics; Lactic acid bacteria; Polyphenols; Ischemia-reperfusion; Oxidative stress;

   Sammanfattning : Oxidative stress can cause damage to DNA, proteins and lipids and is associated with inflammation and various human diseases as cancer, atherosclerosis, and autoimmune diseases. Polyphenol-rich diet, such as fruits and berries, may act as antioxidants and prevent oxidative stress and, thereby, associated diseases. LÄS MER

4. 18. Metabolic Engineering of Disaccharide Catabolism for Polysaccharide Formation in Lactococcus lactis and Streptococcus thermophilus

   Författare :Fredrik Levander; Institutionen för immunteknologi; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; Chemical technology and engineering; metabolic engineering; exopolysaccharide; polysaccharide; disaccharide; Streptococcus thermophilus; lactic acid bacteria; Lactococcus lactis; Biochemical technology; Biokemisk teknik; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

   Sammanfattning : Exopolysaccharides (EPSs) produced by the lactic acid bacteria (LAB) Lactococcus lactis and Streptococcus thermophilus are important for the rheological behaviour and texture of a variety of fermented food products. Furthermore, EPSs from food-grade LAB have potential as food additives and functional food ingredients with both health and economic benefits. LÄS MER

5. 19. 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

7. 20. In silico analysis of microbial communities through constraint-based metabolic modelling

   Författare :Parizad Babaei; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; fermented food production; metagenomics; genome-scale metabolic model; community modelling; malnourishment; Microbial community; systems biology; lactic acid bacteria; gut microbiota; uniform randomised sampling;

   Sammanfattning : Microbial communities are involved in many vital biological processes from elemental cycles to sustaining human health. The bacterial assemblages are remarkably under-studied as they are reluctant to grow in the laboratory conditions. LÄS MER