Sökning: "Pulsed electric field PEF"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden Pulsed electric field PEF.

1. 1. Developing a High-Voltage Mechanical Disconnector: Meeting Safety Standards

   Master-uppsats, Lunds universitet/Innovation

   Författare :Hampus Carlqvist; [2023]
   Nyckelord :Opticept; Standards; Product development; Disconnector; High Voltage; Technology and Engineering;

   Sammanfattning : This master thesis is conducted in collaboration with Opticept Technologies, a company operating in the Pulsed Electric Field (PEF) treatment industry. PEF treatment necessitates the use of high-voltage machines, and this thesis focuses on exploring a mechanical disconnector that serves as an essential safety feature for such high-voltage systems. LÄS MER

3. 2. Prolongation of shelf life of minimally processed spinach by combining vacuum impregnation and electric field treatments

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

   Författare :Sophia Leffler; [2022]
   Nyckelord :spinach; pulsed electric field; moderate electric field; reversible electroporation; vacuum impregnation; shelf life; metabolic activity; respiration; food engineering; Agriculture and Food Sciences;

   Sammanfattning : A continuous growth of the world population raises the importance of preserving food resources while maintaining their nutrient value. Leafy vegetables such as spinach are a food category which decay quickly, and a large amount ends up as food waste. LÄS MER

4. 3. Machine Concept for Pulsed Electric Field Treatment of Leafy Products

   Master-uppsats, Lunds universitet/Innovation

   Författare :Patrik Johansson; [2022]
   Nyckelord :Product development; Opticept; PEF; Leafy Products; Prototyping; Technology and Engineering;

   Sammanfattning : This master thesis, executed in collaboration with Opticept Technologies, has the purpose of developing a machine concept that enables the treatment of leafy products with Pulsed Electric Fields (PEF). PEF is an emerging technology within the food industry that works by changing the cell membrane structure of food products by exposing them to high-voltage electric fields. LÄS MER

5. 4. 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. 5. 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