Fundamentals of Food Technology

Defenition

DEFINITION

• Energy is defined as the capacity for doing work.
  
• The energy contained within the chemical constituents of food can be either trapped in the body or used to produce heat or allow the body to move.
• So energy in nutrition is focused on chemical energy and the kinetic energy of motion.
• The energy value of food is expressed in kilocalories.
• Kilo calorie can be defined as ‘heat required to raise the temperature of one kg of water through one degree celsius’