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Merck
CN

Citric acid production.

Biotechnology annual review (2007-09-19)
Marin Berovic, Matic Legisa
ABSTRACT

Citric acid is a commodity chemical produced and consumed throughout The World. It is used mainly in the food and beverage industry, primarily as an acidulant. Although it is one of the oldest industrial fermentations, its World production is still in rapid increasing. Global production of citric acid in 2007 was over 1.6 million tones. Biochemistry of citric acid fermentation, various microbial strains, as well as various substrates, technological processes and product recovery are presented. World production and economics aspects of this strategically product of bulk biotechnology are discussed.

MATERIALS
Product Number
Brand
Product Description

Supelco
Citric acid, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
USP
Citric acid, United States Pharmacopeia (USP) Reference Standard
Sigma-Aldrich
Citric acid, ACS reagent, ≥99.5%
Sigma-Aldrich
Citric acid, anhydrous, suitable for cell culture, suitable for plant cell culture
Sigma-Aldrich
Citric acid, Vetec, reagent grade, 99%
Sigma-Aldrich
Citric acid, BioUltra, anhydrous, ≥99.5% (T)
Sigma-Aldrich
Citric acid, meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)
Supelco
Citric acid, Anhydrous, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
Citric acid, 99%
Citric acid, anhydrous, European Pharmacopoeia (EP) Reference Standard
Sigma-Aldrich
Citric acid, ≥99.5%, FCC, FG
Sigma-Aldrich
Citric acid, anhydrous, free-flowing, Redi-Dri, ACS reagent, ≥99.5%