Chemigum P83 elastomeric modifier is for plasticized PVC, which improves mechanical properties and melt processing. It helps the end use application to resist abrasion, flex-fatigue, chemicals, oils and fuels.
The three R's for nutrient preservation are to reduce the amount of water used in cooking, reduce the cooking time and reduce the surface area of the food that is exposed. Waterless cooking, pressure cooking, steaming, stir-frying and microwaving are least destructive of nutrients. Frozen vegetables can be steamed.
According to HowStuffWorks, food preservation slows down the activity of disease-causing bacteria or kills bacteria in food altogether. Preserving food keeps it from spoiling too quickly, allowing it to last for weeks or even months longer than it does normally.