Another name for Aspergillus niger is black mold. The mold turns sugars into citric acid that's safe to use in foods, cosmetics, and other products. The citric acid that’s added to many food and ...

Citric acid was first derived from lemon juice by a Swedish researcher in 1784 (1). Because of its acidic, sour-tasting nature, citric acid is predominantly used as a flavoring and preserving ...