Essays about: "freezing tolerance"

Showing result 1 - 5 of 7 essays containing the words freezing tolerance.

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

   University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

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

   Abstract : 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. READ MORE

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

   University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

   Author : George Lukhava; [2021]
   Keywords : 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;

   Abstract : 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. READ MORE

4. 3. Application of pulsed electric fields and vacuum impregnation to improve the freezing tolerance of fresh Origanum vulgare leaves

   University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

   Author : Iliana Karasa; [2018]
   Keywords : Oregano leaves; Freezing; Freezing tolerance; Pretreatments; Vacuum Impregnation; Pulsed electric fields; food engineering; livsmedelsteknik; Agriculture and Food Sciences; Technology and Engineering;

   Abstract : One of most ancient food preservation methods is freezing because there are not caused significant changes the sensory characteristics and nutritional value of foods. Last decade, have been made great steps for the optimization of freezing tolerance of fresh vegetables, fruits and species. READ MORE

5. 4. Effect of freezing and thawing rates on camel sperm quality

   University essay from SLU/Dept. of Clinical Sciences

   Author : Bodil Elwing; [2017]
   Keywords : Camel semen; cryopreservation; freezing rate; thawing temperature; motility analysis;

   Abstract : The objective of this study was to evaluate the effect of different freezing rates and thawing temperatures on the quality of camel spermatozoa post thawing. Ten ejaculates from five male camels were frozen at five different freezing rates, achieved by placing the straws at specific heights above the surface of liquid nitrogen for different times (4 cm for 15 min; 1 cm for 15 min; 7 cm for 15 min; 7 cm for 5 min + 4 cm for 3 min; 4 cm for 5 min + 1 cm for 3 min) followed by storage in liquid nitrogen. READ MORE

6. 5. Ytfuktens inverkan på sockerbetans lagringsduglighet vid minusgrader

   University essay from SLU/Dept. of Biosystems and Technology (from 130101)

   Author : Johan Skyggeson; [2016]
   Keywords : sockerbetor; lagring; stuka; frost; fukt; vind; sugar beet; long-time storage; pile; moist; wind;

   Abstract : Sedan 2006 finns det endast ett sockerbruk kvar i Sverige, vilket har resulterat i förlängda lagringstider hos sockerbetsodlare. De sista betorna plockas i regel upp under andra hälften av november och kan komma att behöva lagras fram till slutet av januari. READ MORE