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Importance of Food Additives for Stability and Quality

Explore the role and functions of food additives in maintaining the stability, appearance, taste, and nutritional value of processed foods. Learn about the classification, benefits, and safety of additives.

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Importance of Food Additives for Stability and Quality

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Presentation Transcript

  1. ADDITIVES OBJECTIVES 1. Which substances are additives; 2. Importance of additives for food technology; 3. Classification.

  2. ADDITIVES 2 What are food additives? • They are substances, or ingredients which are added to food products for maintaining their stability. • Additives are artificial or natural substances, added to food, for microbial and chemical stability of foods to delay or even stop food rancidity.

  3. ADDITIVES 3 Why use Additives ? • Food produced on the large scale that is needed to supply supermarkets and other food shops has to be transported and stored before it is consumed . • It has to stay in top condition over a much longer period of time than home cooked food. • Additives are used so that these foods still have a consistently high quality.

  4. ADDITIVES 5 Functions of food additives: • Improve the taste or appearance of a processed food Eg: beeswax –glazing agent is used to coat apples. • Improve the keeping quality or stability of a food Eg: sorbitol –added to mixed dried fruit to maintain moisture level and softness of the fruit. • Improve shelf life or storage time Eg: SO2 added to sausage meat to avoid microbial growth. • Ensure nutritional value. • Maintain uniform quality and to enhance quality parameters like flavour, colour etc., in large scale production.

  5. ADDITIVES 6 FIVE GENERAL CRITERIA OF FOOD ADDITIVES • Must perform their intended function. • Must not deceive the consumer or conceal defects. • Cannot considerably reduce nutritional value. • Cannot be used to achieve an affect that could be gained by good manufacturing practices. • A method of analysis must exist to monitor the additive.

  6. ADDITIVES 7 (Marcus Porcius Cato DE AGRI CULTURA)

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  21. ADDITIVES 23 ARE FOOD ADDITIVES SAFE TO CONSUME?

  22. CONCLUSIONS Is Food Chemistry funny and interesting? 24 GOOD LUCK WITH FOOD CHEMISTRY!

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