Caramel
(kar' a mel).
DEFINITION
Caramel is a concentrated solution of the product obtained by heating sugar or glucose until the sweet taste is destroyed and a uniform dark brown mass results, a small amount of alkali or of alkaline carbonate or a trace of mineral acid being added while heating.
[Note—Where included in articles for coloring purposes, Caramel complies with the regulations of the FDA concerning color additives (21 CFR 73.85, caramel). ]
IMPURITIES
•  Arsenic, Method II 211: NMT 3 ppm
•  Lead 251: NMT 10 ppm
•  Ash: It swells when incinerated, and forms a coke-like charcoal that burns off only after prolonged heating at a high temperature. It yields NMT 8.0% of ash.
SPECIFIC TESTS
•  Microbial Enumeration Tests 61 and Tests for Specified Microorganisms 62: Meets the requirements of the tests for absence of Salmonella species and Escherichia coli
•  Specific Gravity 841: NLT 1.30
•  Purity: The addition of 0.5 mL of phosphoric acid to 20 mL of a solution (1 in 20) produces no precipitate.
ADDITIONAL REQUIREMENTS
•  Packaging and Storage: Preserve in tight containers.
Auxiliary Information— Please check for your question in the FAQs before contacting USP.
Topic/Question Contact Expert Committee
Monograph Robert H. Lafaver, M.S.
Scientific Liaison
1-301-816-8335
(EXC2010) Monographs - Excipients
61 Radhakrishna S Tirumalai, Ph.D.
Principal Scientific Liaison
1-301-816-8339
(GCM2010) General Chapters - Microbiology
62 Radhakrishna S Tirumalai, Ph.D.
Principal Scientific Liaison
1-301-816-8339
(GCM2010) General Chapters - Microbiology
USP35–NF30 Page 1728