Sökning: "Acetic acid"
Visar resultat 21 - 25 av 145 avhandlingar innehållade orden Acetic acid.
21. Dentine caries : acid tolerant microorganisms and aspects on collagen degradation
Sammanfattning : Karies är en stor folksjukdom, trots att den både kan förebyggas och behandlas effektivt. Om man inte ingriper preventivt och låter det naturliga förloppet råda, kommer kariesangreppet till slut att bryta igenom emaljen och involvera även den underliggande dentinvävnaden. LÄS MER
22. Colour changes and acid formation in wood during heating
Sammanfattning : Heating wood has since ancient times been a method to dry and modify its properties. Nowadays heat is used in industrial processes for the same reasons. Treatment at temperatures above 150ºC can change the colour, improve resistance to biodegradation and enhance dimensional stability. LÄS MER
23. Towards membrane engineering as a tool in cell factory design: A case study on acetic acid tolerance in Saccharomyces cerevisiae
Sammanfattning : The sustainable production of fuels, chemicals, and materials using renewable resources is a necessity if we are to reduce our ecological footprint and the rate of climate change. Lignocellulosic biomass, the major constituent of plant cell walls, is a renewable raw material with great potential due to its high abundance. LÄS MER
24. Superabsorbent Polymers from the Cell Wall of Zygomycetes Fungi
Sammanfattning : The present thesis presents new renewable, antimicrobial and biodegradable superabsorbent polymers (SAPs), produced from the cell wall of zygomycetes fungi. The cell wall was characterized and chitosan, being one of the most important ingredients, was extracted, purified, and converted to SAP for use in disposable personal care products designed for absorption of different body fluids. LÄS MER
25. Ethanol Production from Lignocellulosic Materials: Potential of Continuous Cultivation, Immobilisation, and Zygomycetous Fungi
Sammanfattning : This thesis deals with the production of bio-ethanol, a sustainable alternative to fossil fuels, from dilute-acid lignocellulosic hydrolysate in a continuous immobilised cell system and fermentation of the hydrolysate by a zygomycete organism, M. indicus. LÄS MER