AOAC SPIFAN Stakeholder Program Meeting Book (September 10, 2020)
Vitamin C, structure and activity
OH
O
O
OH
H
OH OH
L-ascorbic acid = 100 % vitamin C activity
L-dehydroascorbic acid = 100 % vitamin C activity
L-ascorbyl palmitate = 100 % vitamin C activity 1 mg L-ascorbyl palmitate = 0.425 mg vitamin C
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Source of illustrations Lemons: https://www.savibio.fr/fruits/42-citron-jaune.html
Vitamin C in foods
Food
Total vitamin C (mg/100 g)
Broccoli Cabbage Spinach Potatoes Oranges
100-160
40-80 25-70 10-20 50-80 20-30
Grapefruit
Human milk 5 Sources: USDA database. Ball, Vitamins in Foods (2006)
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Source of illustrations Lemons: https://www.savibio.fr/fruits/42-citron-jaune.html
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