Question

How are the chemical reactions of food stuff with the environment controlled during storage?​

Answer 1

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Primarily the oxygen and microorgan- isms in air are responsible for adverse effects on stored food. The exposure of stored food to atmosphere is minimized by storing them in air tight container, evacuation or filling the container with N2 gas. Rate of a chemical reaction decreases with the lowering of temperature. Thus refriger-ation is useful for controlling chemical reaction of food stuff with environment. The reactions of food stuff with environment are catalyzed by enzymes. Due to boiling, the enzymes become denatured and the reactions are controlled.

Answer 2

Answer:

Foods are susceptible to quality losses due to chemical reactions, many of which are described in this volume. The rates of these reactions depend both on compositional and environmental factors. Control of undesirable changes during processing requires a quantitative analysis based on knowledge of kinetics of food deterioration.

Explanation: