Assertion: citric acid | /r/Synonym | a"natural citric acid
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Source sentences:
text: The citric acid extracted from these products is known as a"natural citric acid" in contrast to "fermentation citric acid" lemons, limes and pine apples are the principle sources of natural citric acid, which is produced chiefly in Italy, especially Sicily, and also in California, Hawai and the West Indies.