Assertion: vitamin c | /r/AtLocation | food
Facets:
value: as a preservative
type: PURPOSE
value: often
type: TEMPORAL
Source sentences:
text: We can delay this process if we sprinkle lemon juice onto it and that is why ascorbic acid is often added to food as a preservative.
text: FDA does not require the new food food labels to list vitamin C content unless vitamin C has been added to the food.