Friday, 3 January 2014

vit-c-Ascorbic acid

vit-c-Ascorbic acid

Functions

  • Potent antioxidant and also have important role in tissue oxidation
  • Needed for the formation of collagen (collagen accounts for 25% of total body protein)
  • Vitamin C coverts ferric iron to ferrous iron thus facilitate the absorption of iron from vegetable foods
  • Inhibits the formation of nitrosamine by intestinal mucosa

Sources

  • Main source-fresh fruit and green leafy vegetables
  • Good amount-Germinating pulses
  • Trace amount-fresh meat, fish, and cereals.
Source
Amount (mg/100g)
Fruits
Amla
Guava
Lime
Orange
Tomato
Germinated pulses
Bengal gram
Vegetables
Cabbage
Amaranth
Cauliflower
Spinach
Brinjal
Potatoes
Raddish

600
212
63
30
27


16

124
99
56
28
12
17
15

Deficiency-leads to Scurvy


  • Swollen and bleeding gums
  • Bleeding into skin or joints
  • Delayed wound healing
  • Weakness
  • Anemia
  • Subcutaneous bruising

Requirement

Group
Age/category
Amount of vitamin C needed(mg/d)
Man
Sedentary work
Moderate work
Heavy work
40
Women
Sedentary work
Moderate work
Heavy work
40
Pregnant women
60
Lactation
0-12 months
80
Infants
0-12 months
25
Children
1-9 years
40
Boys & Girls
10-17 years
40



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