Minerals d Elements Professor Dr.Jin BQ Dept.of Food Sci.Nutrition
§1 Intriduction Distribution 1. In the Earth: 2. In the Body: 20 kinds mainly, >70 kinds 3. Influence: Earth, Water, Food
§1 Intriduction Distribution 1. In the Earth: 2. In the Body: 20 kinds mainly, >70 kinds 3. Influence: Earth, Water, Food
元素周期表 *
元素周期表 *
Classification 1 Macro-elements: or Minerals, Salts >0.01% in the body 7 kinds: Ca, P, Na, K, Mg, Cl, S 60-80% in total minerals Unit: g 2 Microelements: <0.01% or <0.005% in the body Unit: mg, µg
Classification 1 Macro-elements: or Minerals, Salts >0.01% in the body 7 kinds: Ca, P, Na, K, Mg, Cl, S 60-80% in total minerals Unit: g 2 Microelements: <0.01% or <0.005% in the body Unit: mg, µg
3 Essential Microelements: FAO/WHO in 1995: 10 kinds Cu, Co, Cr, Fe, F, I, Mn, Mo, Se, Zn WHO in 1973: 14 kinds Fe, Cu, Zn, I, Mn, Co, Mo, F, Se, Sn, Be,Ni, Si, V No substitute materials in body 4 Toxic Microelements: Pb, Cd, Hg, As 5 Others: Al, Li and so on
3 Essential Microelements: FAO/WHO in 1995: 10 kinds Cu, Co, Cr, Fe, F, I, Mn, Mo, Se, Zn WHO in 1973: 14 kinds Fe, Cu, Zn, I, Mn, Co, Mo, F, Se, Sn, Be,Ni, Si, V No substitute materials in body 4 Toxic Microelements: Pb, Cd, Hg, As 5 Others: Al, Li and so on
Typicality Only from food and drink Variety in different organs Assisting and anti-assisting Small quantity in body
Typicality Only from food and drink Variety in different organs Assisting and anti-assisting Small quantity in body
Physiological function Important ingredients in body Maintaining the balance of pH, osmosis and penetration in cell or in body Transduction of Muscle and Nerve Synthesis of functional materials
Physiological function Important ingredients in body Maintaining the balance of pH, osmosis and penetration in cell or in body Transduction of Muscle and Nerve Synthesis of functional materials
Deficiency Distribution in the environment Inhibitors in foods Losing in food processing Special requirement for human Delaying action
Deficiency Distribution in the environment Inhibitors in foods Losing in food processing Special requirement for human Delaying action
Safety Range (< 85%)
Safety Range (< 85%)
§2 Calcium The first element in the body Content: Adult 850-1200g in total Infant 28g at born ≌1.5-2.0% in BW Renew: Adult 2-4% one year, 700mg/d >45 age 0.7% a year Baby 1-2 year in total p106-108
§2 Calcium The first element in the body Content: Adult 850-1200g in total Infant 28g at born ≌1.5-2.0% in BW Renew: Adult 2-4% one year, 700mg/d >45 age 0.7% a year Baby 1-2 year in total p106-108