Vitamines and oral health - Vitamins, food processing and food preparation
3 important questions on Vitamines and oral health - Vitamins, food processing and food preparation
- Name 2 benefits of food processing.
- Name the limitation of food processing and how this can occur.
- Name 2 food preparation techniques that cause nutrient depletion
Benefits
- extends shelf life: food is saver --> eliminate harmful bacteria
- enables companies to produce + sell foods in large quantities for consumer --> makes food more affordable
Limitation = degradation of vitamin molecules + other nutrients: nutrients lost in food processing due to:
- high temperature
- oxygen exposure
- light
Nutrient depletion preparation techniques
- boiling: releases nutrients in cooking water (steaming is better)
- prolonged exposure to heat --> such as slow cooking or roasting
- extends shelf life: food is saver --> eliminate harmful bacteria
- enables companies to produce + sell foods in large quantities for consumer --> makes food more affordable
Limitation = degradation of vitamin molecules + other nutrients: nutrients lost in food processing due to:
- high temperature
- oxygen exposure
- light
Nutrient depletion preparation techniques
- boiling: releases nutrients in cooking water (steaming is better)
- prolonged exposure to heat --> such as slow cooking or roasting
- What is the difference between fortification and enrichment of processed foods? Give an example.
Fortification
- vitamins + minerals added to the food product
- during or after processing
- may add nutrients that do not naturally occur in those foods
- ex: C in orange juice
Enrichment
- vitamins + minerals
- lost during processing
- are added back to food product
- ex: fiber back to milled bread/flour
- vitamins + minerals added to the food product
- during or after processing
- may add nutrients that do not naturally occur in those foods
- ex: C in orange juice
Enrichment
- vitamins + minerals
- lost during processing
- are added back to food product
- ex: fiber back to milled bread/flour
- Why are there variations In food sources of vitamins?
- Why is standardization of vitamin content impossible?
Variations due to soil + growing environment
Impossible because:
- supplement manufacturing variations
- purity of components --> in the supplement --> varies
- variations in absorption --> of the supplement --> by body
Impossible because:
- supplement manufacturing variations
- purity of components --> in the supplement --> varies
- variations in absorption --> of the supplement --> by body
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