11 results on '"Lindahl, Lina"'
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2. Minskad belastning på dricksvattenresursen genom industriell-urban vattensymbios
- Author
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Carnohan, Shane, Nicolaidis Lindqvist, Andreas, Simons, Andrew, Wallin, Elin, Hamberg, Lars, Lindahl, Lina, Carnohan, Shane, Nicolaidis Lindqvist, Andreas, Simons, Andrew, Wallin, Elin, Hamberg, Lars, and Lindahl, Lina
- Abstract
Vattenbrist är en akut global, och i många områden växande, utmaning. Pågående klimatförändringar och växande behov i stora delar av världen förändrar både tillgången och efterfrågan på rent vatten. Europa står inför flera akuta vattenrelaterade utmaningar med betydande säkerhets- och miljömässiga konsekvenser. Perioder av återkommande vattenbrist är en av de främsta utmaningarna som redan har drabbat flertalet europeiska länder, särskilt utsatt är området kring medelhavet. Men, även i Sverige är vattenbrist en utmaning som äventyrar försörjning av både dricksvatten och vatten till industri och jordbruk i flera regioner i de södra och sydöstra delarna av landet. I både Vimmerby och Visby, Kalmar och Gotlands län, ses vattenbrist i dag som den främsta utmaningen för att säkra dricksvattenförsörjningen. Risken för vattenbrist förväntas öka i framtiden för båda dessa städer då pågående klimatförändringar bidrar till ökade säsongsvariationer i både nederbörd och temperatur. Utöver vattenbrist brottas båda städerna dessutom med att upprätthålla en god vattenkvalitet. Avrinning från jordbruket (bekämpningsmedel, gödselmedel, etc.) och föroreningar från urbana hårdgjorda ytor som letar sig ned i grund- och ytvattenkällor utgör en ständig risk för vattenkvaliteten i den samhällsviktiga dricksvattenförsörjningen. För att adressera dessa utmaningar och säkra tillgången till dricksvatten i tillräcklig mängd och av god kvalitet även i framtiden behövs ett övergripande tillvägagångssätt, som omfattar hållbara metoder för hantering av grundvatten, förbättrad övervakning av vattenkvalitet och utveckling av robusta strategier som möjliggör anpassning till att klara av ett föränderligt klimat. I detta projekt har konceptet industriell-urban vattensymbios utforskats som en möjlig lösning för att bidra till säkrad vattentillgång och minskad belastning på lokala dricksvattenresurser, med städerna Visby och Vimmerby som fallstudieobjekt. Vattensymbios är ett systematiskt samarbete där o
- Published
- 2023
3. Potentialstudie för biogassubstrat i Västra Götaland, Halland och Skåne
- Author
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Broberg, Kristina, Lindahl, Lina, Tamm, Daniel, Broberg, Kristina, Lindahl, Lina, and Tamm, Daniel
- Abstract
The potential of producing biogas by digestion from substrates in Västra Götaland, Halland and Skåne has in this study been estimated to approximately 5 900 GWh per year, of which 2 300 GWh are found in Västra Götaland, 650 GWh in Halland and 3 000 GWh in Skåne. The estimated potential is based on the current amounts of the substrate categories food waste, agricultural residues, manure, sludge from sewage treatment plants and industrial organic residues. For each of the three regions, the largest contributor to the current substrate potential is agricultural residues. This category contributes with approximately 3 900 GWh annually in total for the three regions. However, to be able to fully realize the potential of the agricultural residues there are logistic and technical challenges to be solved. Manure accounts for the second largest contribution to the potential, approximately 1 000 GWh per year for the three regions. The conditions to realize the manure potential are good with national production support in place for this substrate category. The study also includes a brief investigation of future substrate categories focused on marine substrates, grass and hay harvesting, industrial wastewater and biological methanation. From the future substrates, a contribution of a total of 3 600 GWh per year will be added to the estimated potential for the three regions. The largest addition is potential biological methanation of the carbon dioxide streams from the total substrate potential from the current categories, approximately 3 000 GWh annually. Thereafter, the largest contributing future substrate category is industrial wastewater. Including the future substrate flows, a total biogas potential of 9 500 GWh per year was estimated for Västra Götaland, Skåne and Halland together. To realize the potential, close cooperation between substrate owners, gas producers and municipalities are needed together as well as a long-term policy landscape.
- Published
- 2022
4. Vattenanvändning och möjligheter till vattenbesparing hos kemiklustret i Stenungsund
- Author
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Lindahl, Lina, Simons, Andrew, Gervind, Pernilla, Lindahl, Lina, Simons, Andrew, and Gervind, Pernilla
- Abstract
Water use and opportunities for water savings at the chemical industry cluster in Stenungsund Water scarcity is a growing problem in Sweden, as well as internationally, due to increasing demand for water and the impact of climate change. This is the case in Stenungsund where the ability for the municipality and industry to expand is limited by the availability of water from the local lake, Stora Hällungen. Working with the four largest industrial sites in the Stenungsund industrial cluster, Perstorp, Nouryon, Borealis and INOVYN, this project focused on mapping water use in the cluster by testing and further developing a tool for mapping of water use in industry. The flow of water through the industrial sites, its uses, treatment approaches and aggregated water quality data were included in the mapping and is presented using visual outputs generated from the tool. A methodology for water quality assessment and grouping was also developed and included in the tool. Results of the mapping were used as foundation to investigate opportunities for water savings through improved efficiency and reuse of wastewater streams. Measures to improve water efficiency include minimisation of the volume of reject water in treatment processes, sequence optimisation for reducing water use in cleaning and optimisation of steam and cooling systems. Opportunities for water reuse include the reuse of wastewater or stormwater for cooling at Perstorp and the Borealis PE site, and the recirculation of wastewater from the Borealis Cracker. Critically, the incentives for individual companies to implement water savings and reuse measures are a decisive factor in their implementation. Given this, a next step from this work would be to conduct a more comprehensive risk analysis to investigate future needs of the various stakeholders with respect to water and water supply risks. From these results a pinch analysis considering water quality could also be conducted to find further opportunities for w
- Published
- 2022
5. Sphingolipids contribute to acetic acid resistance in Zygosaccharomyces bailii
- Author
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Lindahl, Lina, Genheden, Samuel, Eriksson, Leif A., Olsson, Lisbeth, and Bettiga, Maurizio
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Sphingolipids ,myriocin ,Antifungal Agents ,Cell Membrane ,Biofuels and Environmental Biotechnology ,Zygosaccharomyces ,Articles ,molecular dynamics simulations ,Molecular Dynamics Simulation ,Lignin ,Article ,Permeability ,Culture Media ,Fatty Acids, Monounsaturated ,lignocellulose ,membrane permeability ,inhibitors ,acetic acid tolerance ,Acetic Acid - Abstract
Lignocellulosic raw material plays a crucial role in the development of sustainable processes for the production of fuels and chemicals. Weak acids such as acetic acid and formic acid are troublesome inhibitors restricting efficient microbial conversion of the biomass to desired products. To improve our understanding of weak acid inhibition and to identify engineering strategies to reduce acetic acid toxicity, the highly acetic‐acid‐tolerant yeast Zygosaccharomyces bailii was studied. The impact of acetic acid membrane permeability on acetic acid tolerance in Z. bailii was investigated with particular focus on how the previously demonstrated high sphingolipid content in the plasma membrane influences acetic acid tolerance and membrane permeability. Through molecular dynamics simulations, we concluded that membranes with a high content of sphingolipids are thicker and more dense, increasing the free energy barrier for the permeation of acetic acid through the membrane. Z. bailii cultured with the drug myriocin, known to decrease cellular sphingolipid levels, exhibited significant growth inhibition in the presence of acetic acid, while growth in medium without acetic acid was unaffected by the myriocin addition. Furthermore, following an acetic acid pulse, the intracellular pH decreased more in myriocin‐treated cells than in control cells. This indicates a higher inflow rate of acetic acid and confirms that the reduction in growth of cells cultured with myriocin in the medium with acetic acid was due to an increase in membrane permeability, thereby demonstrating the importance of a high fraction of sphingolipids in the membrane of Z. bailii to facilitate acetic acid resistance; a property potentially transferable to desired production organisms suffering from weak acid stress. Biotechnol. Bioeng. 2016;113: 744–753. © 2015 The Authors. Biotechnology and Bioengineering Published by Wiley Periodicals, Inc.
- Published
- 2015
6. Alcohols enhance the rate of acetic acid diffusion in S. cerevisiae: biophysical mechanisms and implications for acetic acid tolerance
- Author
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Lindahl, Lina, primary, Genheden, Samuel, additional, Faria-Oliveira, Fábio, additional, Allard, Stefan, additional, Eriksson, Leif A., additional, Olsson, Lisbeth, additional, and Bettiga, Maurizio, additional
- Published
- 2018
- Full Text
- View/download PDF
7. Membrane engineering of S. cerevisiae targeting sphingolipid metabolism
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Lindahl, Lina, primary, Santos, Aline X. S., additional, Olsson, Helén, additional, Olsson, Lisbeth, additional, and Bettiga, Maurizio, additional
- Published
- 2017
- Full Text
- View/download PDF
8. push: katalog belysningsobjekter 2BA produktdesign HiOA : utstilling DogA 16. mai-24. mai 2012
- Author
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Aaberg, Benedikte, Aarseth, Eli Marianndotter, Arnet, Pernille Angell, Bergsaker, Andreas Ferdinand Risse, Berntsen, Bendik Sjur, Carlsen, Emilie Stahl, Dybwad, Håvard Martin Stokke, Edlén, Elina Maria, Eriksen, Tomas Eidsvold, Gabrielsen, Kristin Rovik, Henriksen, Viktoria Helen, Høglid, Karina Engen, Ilstad, Hans Petter, Iversen, Ellen Sofie, Kallstad, Andreas, Lain, Christopher, Langset, Heidi Karoline Nordvold, Larsen, Tine Berge, Leiknes, Anja, Lindahl, Lina Vinju, Lindgård, Bjørn Tore Karlsen, Løk, Tone, Mackenzie, Siobahn Naomi, Måseidvåg, Sandra, Nguyen, Tuyet Trinh Thi, Ohlsson, Emilia, Raagaard, Ida-Franciska, Rønning, Maria Katharina, Saasen, Marie, Sanner, Margaret Sripo, Steinnes, Inger, Stormo, Thea Marie, Sundby, Cecilie, Thorstensen, Marie Ramm, Torgrimsen, Mia Christin, Verbaan, Marius Alexander Amundsen, Westlie, Eva Christin, and Åsgård, Alexander Ekelund
- Subjects
Design ,Produktdesign ,Belysning ,Utstillinger ,Utstillingskataloger - Abstract
Katalog belysningsobjekter i produktdesign, 2012
- Published
- 2012
9. Sphingolipids contribute to acetic acid resistance inZygosaccharomyces bailii
- Author
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Lindahl, Lina, primary, Genheden, Samuel, additional, Eriksson, Leif A., additional, Olsson, Lisbeth, additional, and Bettiga, Maurizio, additional
- Published
- 2015
- Full Text
- View/download PDF
10. Sphingolipids contribute to acetic acid resistance in Zygosaccharomyces bailii.
- Author
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Lindahl, Lina, Genheden, Samuel, Eriksson, Leif A., Olsson, Lisbeth, and Bettiga, Maurizio
- Abstract
ABSTRACT Lignocellulosic raw material plays a crucial role in the development of sustainable processes for the production of fuels and chemicals. Weak acids such as acetic acid and formic acid are troublesome inhibitors restricting efficient microbial conversion of the biomass to desired products. To improve our understanding of weak acid inhibition and to identify engineering strategies to reduce acetic acid toxicity, the highly acetic-acid-tolerant yeast Zygosaccharomyces bailii was studied. The impact of acetic acid membrane permeability on acetic acid tolerance in Z. bailii was investigated with particular focus on how the previously demonstrated high sphingolipid content in the plasma membrane influences acetic acid tolerance and membrane permeability. Through molecular dynamics simulations, we concluded that membranes with a high content of sphingolipids are thicker and more dense, increasing the free energy barrier for the permeation of acetic acid through the membrane. Z. bailii cultured with the drug myriocin, known to decrease cellular sphingolipid levels, exhibited significant growth inhibition in the presence of acetic acid, while growth in medium without acetic acid was unaffected by the myriocin addition. Furthermore, following an acetic acid pulse, the intracellular pH decreased more in myriocin-treated cells than in control cells. This indicates a higher inflow rate of acetic acid and confirms that the reduction in growth of cells cultured with myriocin in the medium with acetic acid was due to an increase in membrane permeability, thereby demonstrating the importance of a high fraction of sphingolipids in the membrane of Z. bailii to facilitate acetic acid resistance; a property potentially transferable to desired production organisms suffering from weak acid stress. Biotechnol. Bioeng. 2016;113: 744-753. © 2015 Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
11. Alcohols enhance the rate of acetic acid diffusion in S. cerevisiae : biophysical mechanisms and implications for acetic acid tolerance.
- Author
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Lindahl L, Genheden S, Faria-Oliveira F, Allard S, Eriksson LA, Olsson L, and Bettiga M
- Abstract
Microbial cell factories with the ability to maintain high productivity in the presence of weak organic acids, such as acetic acid, are required in many industrial processes. For example, fermentation media derived from lignocellulosic biomass are rich in acetic acid and other weak acids. The rate of diffusional entry of acetic acid is one parameter determining the ability of microorganisms to tolerance the acid. The present study demonstrates that the rate of acetic acid diffusion in S. cerevisiae is strongly affected by the alcohols ethanol and n-butanol. Ethanol of 40 g/L and n-butanol of 8 g/L both caused a 65% increase in the rate of acetic acid diffusion, and higher alcohol concentrations caused even greater increases. Molecular dynamics simulations of membrane dynamics in the presence of alcohols demonstrated that the partitioning of alcohols to the head group region of the lipid bilayer causes a considerable increase in the membrane area, together with reduced membrane thickness and lipid order. These changes in physiochemical membrane properties lead to an increased number of water molecules in the membrane interior, providing biophysical mechanisms for the alcohol-induced increase in acetic acid diffusion rate. n-butanol affected S. cerevisiae and the cell membrane properties at lower concentrations than ethanol, due to greater and deeper partitioning in the membrane. This study demonstrates that the rate of acetic acid diffusion can be strongly affected by compounds that partition into the cell membrane, and highlights the need for considering interaction effects between compounds in the design of microbial processes., Competing Interests: Conflict of interest: The authors declare that they have no competing interests.
- Published
- 2017
- Full Text
- View/download PDF
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