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.
Some nutrients break down when they're exposed to heat, whether it is from a microwave or a regular oven. Vitamin C is perhaps the clearest example. But because microwave cooking times are shorter, cooking with a microwave does a better job of preserving vitamin C and other nutrients that break down when heated. As far as vegetables go, cooking them in water robs them of some of their nutritional value because the nutrients leach out into the cooking water.