Vitamin C can be destroyed by heat and light. High-heat cooking temperatures or prolonged cook times can break down the vitamin. Because it is water-soluble, the vitamin can also seep into cooking liquid and be lost if the liquids are not eaten.
Does vitamin C oxidize in light?
In topical skin-care products, vitamin C is sensitive to light and air. “When exposed to these factors, it becomes oxidized to dehydroascorbic acid, which is less stable and less efficacious,” Dr. Hogan explains.
Is vitamin C stable in light?
The stability of vitamin C in topical solutions is a concern, as exposures to air, heat, and/or light may slowly degrade vitamin C.
Does light affect vitamin C concentration?
At moderate light intensities of 140, 200 and 285 μmol m-2 s-1 and a light sum of 10-30 mol day-1, the Vitamin C concentration increased by 65% in comparison to the controls. The light sum is best applied at low intensity for a longer period (20 h) than at higher intensities for a shorter period (14 h).
What vitamins does light destroy?
Riboflavin, also called vitamin B2, releases energy from carbohydrates. B2 is destroyed by exposure to light, therefore foods with riboflavin should be keep in dark or opaque containers.
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