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Fumaric acid or trans-butenedioic acid is an organic compound with the formula HO 2 CCH=CHCO 2 H. A white solid, fumaric acid occurs widely in nature. It has a fruit-like taste and has been used as a food additive. Its E number is E297. [3] The salts and esters are known as fumarates. Fumarate can also refer to the C 4 H 2 O 2− 4 ion (in ...
Common food acids include vinegar, citric acid, tartaric acid, malic acid, folic acid, fumaric acid, and lactic acid. Acidity regulators Acidity regulators are used to change or otherwise control the acidity and alkalinity of foods. Anticaking agents Anticaking agents keep powders such as milk powder from caking or sticking. Antifoaming agents
Structural formula hexanoic acid: caproic acid n-caproic acid: CH 3 (CH 2) 4 COOH hexanedioic acid: adipic acid hexane-1,6-dioic acid: HOOC(CH 2) 4 COOH 2,3-dimethylbutanoic acid CH 3 (CHCH 3) 2 COOH 3,3-dimethylbutanoic acid CH 3 C(CH 3) 2 CH 2 COOH 2-hydroxypropane-1,2,3-tricarboxylic acid: citric acid 3-carboxy-3-hydroxypentanedioic acid 2 ...
The first medical use of fumaric acid was described in 1959 by Walter Schweckendiek, a German chemist, [15] and was a topical formulation for psoriasis. The Swiss company Fumapharm eventually brought Fumaderm, an oral formulation of dimethyl fumarate (along with some monoesters) to market for psoriasis in Germany in 1994.
Calcium fumarate is a compound with formula Ca(C 2 H 2 (COO) 2) or (OOC-CH=CH-COO)Ca. It is a calcium salt of fumaric acid, and has been used to enrich foods to boost calcium absorption. [1] It has E number "E367". [2]
Sodium fumarate, also called disodium fumarate, is a compound with the molecular formula Na 2 C 4 H 2 O 4. [1] It is the sodium salt of fumaric acid, [1] used as an acidity regulator in processed foods. [1] Sodium fumarate and fumaric acid are sometimes used as terminal electron acceptors in the cultivation of certain anaerobic microorganisms.
Structural effects can also be important. The difference between fumaric acid and maleic acid is a classic example. Fumaric acid is (E)-1,4-but-2-enedioic acid, a trans isomer, whereas maleic acid is the corresponding cis isomer, i.e. (Z)-1,4-but-2-enedioic acid (see cis-trans isomerism). Fumaric acid has pK a values of
Ascorbic acid: Found in oranges and green peppers and gives a crisp, slightly sour taste, better known as vitamin C. C 6 H 8 O 6: pH 3.59 [3] Citric acid: Found in citrus fruits and gives them their sour taste. C 6 H 8 O 7: pH 3.24 [3] Fumaric acid: Found in bolete mushrooms, Icelandic moss and lichen. Not found in fruits, used as a substitute ...