The conservation of energy is an essential step we can all take towards overcoming the mounting problems of the worldwide energy crisis and environmental degradation. In the food processing industry a substantial amount of energy is consumed. Excessive use of energy is usually associated with many industrial plants worldwide, and food processing plants are no exception. Enormous potential exists for cost effective improvement in existing energy usage equipment.

This special issue will deal with:

1. Process Engineering: this field will deal with sterilization, extrusion process, Requirements for the design of food processing equipment and drying of fruit and vegetables.

2. Energy conservation: this field will talk about optimum operating conditions of unit operation used in food industry and how physical and rheological properties affects these unit operation in order to rationalize energy consumption in factories.

3. Water Conservation: this field will talk about water treatment in food industry and methods used for waste water treatment. Also how we can use agricultural wastes as an adsorber of heavy metals and phenols found in waste water or using nanoparticles in water treatment.