Sökning: "Flavonoid"
Visar resultat 1 - 5 av 24 avhandlingar innehållade ordet Flavonoid.
1. Modification of flavonoid content and photosynthesis by ultraviolet-B radiation. Atrazine-tolerant and -sensitive ultivars of Brassica napus
Sammanfattning : Levels of ultraviolet-B (UV-B, 280-320 nm) radiation reaching the Earth´s surface increase due to stratospheric ozone depletion. In this thesis the effect of enhanced UV-B radiation was studied on the atrazine-tolerant mutant Stallion, susceptible to photoinhibition, and the atrazine-sensitive cultivar Paroll of Brassica napus (oilseed rape). LÄS MER
2. Molecular development of a thermostable β-glucosidase for modification of natural products
Sammanfattning : The gene encoding a β-glucosidase originating from the extreme thermophile Thermotoga neopolitana has been cloned and expressed in Escherichia coli. The aim was to produce a thermostable enzyme that could be used to remove sugar residues from glucosylated natural products classified as flavonoids by applying a method combining extraction in hot pressurized water with enzymatic hydrolysis. LÄS MER
3. Improving flavonoid production in Saccharomyces cerevisiae using synthetic biology tools
Sammanfattning : Flavonoids are plant secondary metabolites and represent one of the largest classes of natural products. Due to their health-beneficial properties, they have found potential applications in foods, beverages, cosmetics, and pharmaceuticals. Currently, their production is based on extraction from plant material. LÄS MER
4. Organelle movement in melanophores: Effects of Panax ginseng, ginsenosides and quercetin
Sammanfattning : Panax ginseng is a traditional herb that has been used for over 2000 years to promote health and longevity. Active components of ginseng include ginsenosides, polysaccharides, flavonoids, polyacetylenes, peptides, vitamins, phenols and enzymes, of which the ginsenosides are considered to be the major bioactive constituents. LÄS MER
5. Molecular responses against Heterobasidion annosum s.l. in Picea abies
Sammanfattning : Norway spruce [Picea abies (L.) Karst.] is a main tree species in European forests and is important both ecologically and economically. The root rot fungus Heterobasidion annosum sensu lato (s. LÄS MER