Sökning: "arabinose"
Visar resultat 21 - 25 av 29 avhandlingar innehållade ordet arabinose.
21. Bioplastics from Biomass - Acetylation of Xylans with Green Chemistry
Sammanfattning : There is social, environmental and increasing economic pressure on the industrial sector to substitute non-renewable resources with renewable ones as the increasing World population is exponentially depleting the fossil fuel supplies of the Earth. Each year about 260 million tons of plastics are produced from crude oil and most of it ends up as waste. LÄS MER
22. The GRE3 encoded aldo-keto reductase and its influence on xylose fermentation in recombinant Saccharomyces cerevisiae strains
Sammanfattning : The aim of the work presented in this thesis was to improve ethanol formation from xylose in recombinant Saccharomyces cerevisiae strains. This was achieved by decreasing the xylitol by-product formation. Gre3p is the major xylose-reducing enzyme in S. cerevisiae. LÄS MER
23. Design of kinetic models for assessment of critical aspects in bioprocess development : A case study of biohydrogen
Sammanfattning : The world faces major climate challenges and extensive efforts need to be taken to combat this issue. Replacing fossil-derived fuels and chemicals with renewables are one important step on the way. Hydrogen has a great potential as a renewable energy carrier for the transport sector and as a green chemical for the industry. LÄS MER
24. Appraisal of strategies to improve thermophilic hydrogen production exploiting Caldicellulosiruptor species
Sammanfattning : The transition from a fossil to a bio-based economy is of vital importance to stem the effects of ongoing climate change.This bio-based economy will necessitate the production of both biofuels and chemical compounds from biologicalsources. LÄS MER
25. Study on the structure and properties of xylan extracted from eucalyptus, sugarcane bagasse and sugarcane straw
Sammanfattning : Lignocellulosic biomasses are an important source of chemical components such as cellulose, lignin and hemicelluloses, and can be used for a variety of purposes in both the pulp and paper and chemical conversion industries. Xylan, the main hemicellulose found in hardwood and grass plants, plays an important role during the pulping/pretreatment process reactions, including those used in 2nd generation bioethanol production. LÄS MER