A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability. Occurs in the free state in lemons, currants, beetroot etc. and the seeds and juices of many flowers and plants. Commercially produced by large-scale fermentation of sugars using the mould Aspergillus nigus. Constit. of fruit drinks, pharmaceutical syrups. Flavouring ingredient. Primary function as an acid, acidity regulator, antioxidant, preservative and sequestrant. One of the most widely used food additives. Its clean taste makes it applicable in soft drinks, sugar confectionery, preserves, soups and sauces Citric acid is a weak organic acid. It is a natural preservative/conservative and is also used to add an acidic, or sour, taste to foods and soft drinks. (Wikipedia)


Manganese citrate is a chemical compound of manganese. Manganese is a naturally occurring metal with the symbol Mn and the atomic number 25. It does not occur naturally in its pure form, but is found in many types of rocks in combination with other substances such as oxygen, sulfur, or chlorine. Manganese occurs naturally in most foods and small amounts are needed to stay healthy, as manganese ions act as cofactors for a number of enzymes. (L228, L229)

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