Sökning: "PEF"

Visar resultat 6 - 10 av 25 uppsatser innehållade ordet PEF.

1. 6. Förnybara fibrer i textila produkter : en väg mot hållbar utveckling

   Kandidat-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Författare :Mathilda Stenström; Elin Johnsson; [2022]
   Nyckelord :Waste management; bio-based materials; biodegradable materials; bioeconomy; mixed fiber; circular economy; end-of-life; sustainability; monomaterial; textile fiber content.; Avfallshantering; biobaserade material; bionedbrytbara material; bioekonomi; blandfiber; cirkulär ekonomi; end-of-life; hållbar utveckling; monomaterial; textilt fiberinnehåll.;

   Sammanfattning : Den globala efterfrågan på textila produkter ökar ständigt, samtidigt som branschen står inför stora utmaningar gällande dess höga klimat- och miljöpåverkan. Omkring 65 miljoner ton syntetiskt material framställs årligen, där polyester står för 82% och dominerar marknaden. LÄS MER

3. 7. Bioplastics Material Flow Analysis And Their Environmental Impacts

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :Xinyi Qin; [2022]
   Nyckelord :Bioplastics; Material flow analysis; Life cycle analysis;

   Sammanfattning : This research is conducted to have a better understanding on the future develop- ment of bioplastics and their environmental impacts. This research first studies the future consumption and waste of bioplastics till 2050 by material flow analysis (MFA). LÄS MER

4. 8. Integration of food shelf-life in life cycle assessment of polymers

   Master-uppsats, Lunds universitet/Förpackningslogistik

   Författare :Divya Sukumaran Nair; [2021]
   Nyckelord :Food shelf-life; life cycle assessment; biopolymers; food packaging; sustainability; shelf-life induced food waste; Technology and Engineering;

   Sammanfattning : Biopolymers are being considered as a promising alternative to fossil-based polymers and this inclination towards biopolymers is due to their lower environmental impact owing to their origin from renewable resources. The environmental impact assessment, however, often does not consider the impact of barrier properties of polymers and the resulting differences in food waste generated in the supply chain. LÄS MER

5. 9. The effectivity of vacuum impregnation with glycerol and secondary metabolites on electroporated arugula leaves to improve freezing stability.

   Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

   Författare :Oscar de Kuijer; [2021]
   Nyckelord :Pulsed electric field PEF; Arugula; Electroporation; Secondary metabolites; Glycerol; Food engineering; Livsmedelsteknik; Technology and Engineering; Agriculture and Food Sciences;

   Sammanfattning : Freeze damage is a common issue in many food items. The cellular dehydration caused by freezing can be prevented through addition of a cryoprotectant. Research has shown that it is possible to improve the freezing tolerance of plant materials by addition of cryoprotectants, which forms hydrogen bonds with water molecules. LÄS MER

7. 10. Effects of Vacuum Impregnation with Various Substances in Combination with Pulsed Electric Field to Improve the Freezing Tolerance of Arugula Leaves

   Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

   Författare :George Lukhava; [2021]
   Nyckelord :Food Engineering; Food Preservation; Pulsed Electric Fields; PEF; Vacuum Impregnation; VI; Arugula; Cryoptrotectant; Glycerol; Secondary Metabolites; Folic Acid; Folate; Folacin; Vitamin B1; Thiamine; Thiamin; Agriculture and Food Sciences;

   Sammanfattning : As of 2020 an estimated number of 821 million people across the world are undernourished and that figure is expected to grow by 2 billion before the end of 2050 (United Nations Sustainable Development 2020). Despite this, every year over 1/3 of food produced globally is disposed of without consumption (Global Panel on Agriculture and Food Systems for Nutrition 2018), and the actual number might be much higher. LÄS MER