Sökning: "temperature and pH"
Visar resultat 21 - 25 av 328 uppsatser innehållade orden temperature and pH.
21. Solid-state fermentation of the microalgae Scenedesmus sp. for improved conservation and protein digestibility
Master-uppsats, Lunds universitet/Bioteknik; Lunds universitet/Bioteknik (master)Sammanfattning : As part of a research grant aimed at producing chicken feed from the novel microalgae Scenedesmus sp., called the ReMAPP project, this thesis investigates opportunities to increase the conservation potential and protein digestibility utilizing solid-state lactic acid fermentation and commercial enzyme additives. LÄS MER
22. Optimising microfluidic preparation of lipid sponge phase nanoparticles for biomolecule encapsulation
Master-uppsats, Lunds universitet/Kemiteknik (CI)Sammanfattning : Drug delivery with lipid nanoparticles, especially sponge phase lipid nanoparticles (LNP), has been well studied because of its ability for drug encapsulation and transferring the drug through the cell membrane. The sponge phase LNP formulation could be affected by the molecular structure of the lipid, the temperature, pH, dilution, the buffer, and the addition of a stabiliser. LÄS MER
23. The effect of temperature on the chemical stability of Vitamin C in a cosmetic product – Development of an HPLC-method for quantitative analysis
Master-uppsats, KTH/Tillämpad fysikalisk kemiSammanfattning : Vitamin C är en populär ingrediens i hudvårdsprodukter, bland annat på grund av dess positiva effekter på kollagen-produktionen i huden och dess antioxidativa egenskaper. Dessvärre är vitamin C en känslig ingrediens som lätt bryts ned av ljus, syre, hög temperatur eller fel pH-värde. LÄS MER
24. Impact of storage at freezing temperatures on casein micelle size, coagulation properties and curd yield in bovine milk
Master-uppsats, SLU/Department of Molecular SciencesSammanfattning : Frozen storage is an efficient and convenient way to preserve and transport milk, but the effect from frozen storage needs to be further researched. The objective of this study was to investigate how storage at freezing temperatures (-80°C and -20°C) of frozen and freeze-dried bovine milk samples, respectively, affects pH, casein micelle size, ethanol stability, rheological properties and curd yield. LÄS MER
25. Characterization of ulvan polysaccharide degrading enzymes from Wenyingzhuangia fucanilytica
Master-uppsats, Lunds universitet/Bioteknik; Lunds universitet/Bioteknik (master)Sammanfattning : The aim of this thesis was to fully characterize the enzyme WFp-105, including bioinformatic analysis, structural modeling, full activity and stability characterization and product determination. As well as for the enzyme WFp-37; optimize protein production in regard to expression strains and cultivation temperature, analyzing the genomic context as well as performing an initial activity detection. LÄS MER