Class notes
Minerals
- Course
- Nutrition (DENT3030)
Describe different types of minerals & the benefits of them as well as consequences for lacking them
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🍷Week 10 - Minerals
Mineralization
The deposition of inorganic element (minerals) on an organic matrix
(mainly composed of protein in combination with some polysaccharides
& lipids)
Bone mineralization & growth
Calcified structures include bone & teeth
Collagen + bone undergo constant remodelling
Organic matrix of bone is 9095% collagen fibers
Formation of collagen requires protein, vitamin C, iron, copper, &
zinc
Once collagen is formed, mineralization begins
Calcium, phosphorus, magnesium, sodium, potassium, &
carbonate ions form mineral matrix
Calcium reserve
Week 10 - Minerals 1
, 0.4 - 10% of total bone calcium in shapeless (amorphous) form
Formation of teeth
Crystalline structure of enamel is one of the most insoluble & resistant
proteins known
Comparable to hardness of quartz
Dentin contains the same constituent as bon, but its structure is more
dense
Cementum is bone-like structure, but because it contains fewer
minerals + softer than bone
Development of normal, healthy teeth
Affected by metabolic factors
parathyroid secretion
the availability of calcium
phosphate
vitamin D
protein
many other nutrients
Week 10 - Minerals 2
, Intro to minerals
Inorganic elements that have many physiological functions
Inorganic elements in body account for 4% total body weight 6lb for a
150lb person)
2 categories:
Major minerals (require in larger amounts)
Micronutrients or trace elements (require in smaller amount)
Calcium
Roles
Most abundant minerals in the body 1200g)
99% in teeth & bone
Bone health
Blood clotting
Transmit nerve impulses
Week 10 - Minerals 3
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