Ascorbic Acid Flashcards
Who/where were four people/places that discovered it? Ascorbic Acid
Hippocrates, British navy, pasteurization, scurvy in guinea pigs
what are its four properties? Ascorbic Acid
acid taste, water soluble; rapidly oxidized by air, light, Cu and alkali; powerful reducing agent
what are its seven functions? Ascorbic Acid
antioxidant, hydroxylator, wound healing, metabolism of some amino acids, iron absorption, resistance to infection/stress, protective of cancer?
what happens with its function as an antioxidant? Ascorbic Acid
active form is reduced: hydrogens, inactive form is oxidized
what happens with its function as a hydroxylator? Ascorbic Acid
proline and lysine (collagen) convert to the hydroxy form in collagen and bone; phenylalanine –> tyrosine
what happens with its function as a wound healer? Ascorbic Acid
proline and lysine convert to the hydroxy form
what happens with its function in the metabolism of some amino acids? Ascorbic Acid
phenylalanine –> tyrosine
what happens with its function in enhancing iron absorption? Ascorbic Acid
Fe +3 –> Fe +2
how much will double the amount of iron available for absorption? Ascorbic Acid
25 mg
what has the same effect as 1 mg vitamin c? Ascorbic Acid
1 g meat
what happens with its function as a resistor of stress? Ascorbic Acid
its highest in the adrenal gland, hypertrophied in guinea pigs
is it protective against getting a cold? Ascorbic Acid
no
what were the results of a toronto study? Ascorbic Acid
no effect on number of colds but fewer days with severe symptoms, its an anti-histamine
what is the deficiency disease called? Ascorbic Acid
scurvy
what are the five greatest food sources? Ascorbic Acid
wild rose hips, sweet pepper, orange, potato, tomato
