calcium propanoate - wikipedia, the free encyclopedia
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Calcium propanoate[1]
Calcium propanoate
Calcium propionate
Mycoban
Identifiers
CASnumber
4075-81-4
PubChem 19999
ChemSpider 18840
EC number 223-795-8
Jmol-3D
images
Image 1
(http://chemapps.stolaf.edu/jmol/jmol.php
model=CCC%28%3DO%29%5BO-
%5D.CCC%28%3DO%29%5BO-
%5D.%5BCa%2B2%5D)
Properties
Molecular
formula
C6H10CaO4
Molar mass 186.2192 g/mol
Appearance White crystalline solid
Solubility in
water
49 g/100 mL (0 C)
55.8 g/100 mL (100 C)
Solubility slightly soluble in methanol, ethanol
insoluble in acetone, benzene
Structure
Crystal
structure
monoclinic
(verify)(what is: / ?)
Calcium propanoateFrom Wikipedia, the free encyclopedia
Calcium propanoate orcalcium propionate has the
formula Ca(C2H5COO)2. It is the calcium salt of propanoic
acid.
Uses
As a food additive, it is listed as E number 282 in the
Codex Alimentarius. Calcium propanoate is used as a
preservative in a wide variety of products, including but not
limited to bread, other baked goods, processed meat,
whey, and other dairy products.[2] In agriculture, it is used,
amongst other things, to prevent milk fever in cows and as a
feed supplement [3] Propanoates prevent microbes from
producing the energy they need, like benzoates do.However, unlike benzoates, propanoates do not require an
acidic environment.[4]
Calcium propanoate is used in bakery products as a mold
inhibitor, typically at 0.1-0.4% [5] (though animal feed may
contain up to 1%). Mold contamination is considered a
serious problem amongst bakers, and conditions commonly
found in baking present near-optimal conditions for mold
growth.[6]
A few decades ago,Bacillus mesentericus (rope), was a
serious problem,[7] but today's improved sanitary practices
in the bakery, combined with rapid turnover of the finished
product, have virtually eliminated this form of
spoilage.[citation needed] Calcium propanoate and sodium
propanoate are effective against bothB. mesentericus rope
and mold.[8]
Metabolism of propanoate begins with its conversion to
propionyl coenzyme A (propionyl-CoA), the usual first stepin the metabolism of carboxylic acids. Since propanoic acid
has three carbons, propionyl-CoA can directly enter neither
beta oxidation nor the citric acid cycles. In most
vertebrates, propionyl-CoA is carboxylated to D-
methylmalonyl-CoA, which is isomerised to L-
methylmalonyl-CoA. A vitamin B12-dependent enzyme
catalyzes rearrangement of L-methylmalonyl-CoA to
succinyl-CoA, which is an intermediate of the citric acid
cycle and can be readily incorporated there.
IUPAC name
Other names
SMILES
InChI
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Except where noted otherwise, data are given for
materials in their standard state (at 25 C, 100 kPa)
Infobox references
When propanoic acid is infused directly into rodents' brains,
it produces reversible behavior (e.g. hyperactivity, dystonia,
social impairment, perseveration) and brain (e.g. innate
neuroinflammation, glutathione depletion) changes that may
be used as a model of human autism in rats.[9]
According to the Pesticide Action Network North America, calcium propionate is slightly toxic.[10] This rating is
not uncommon for food products; vitamin C is also rated by the same standards as being slightly toxic. [11] Calcium
propanoate can be used as a fungicide on fruit.[12]
References
1. ^Merck Index, 11th Edition, 1705.
2. ^ Codex Alimentarius data for calcium propanoate
(http://www.codexalimentarius.net/gsfaonline/additives/details.html?id=306)
3. ^ Center for Food and Nutrition Policy review of use of calcium propanoate as an organic agent in cow feed and
as milk fever prevention (http://www.ams.usda.gov/NOP/NationalList/TAPReviews/CalciumPropionate.pdf)
4. ^ "Ingredients -- Calcium propionate" (http://sci-toys.com/ingredients/calcium_propionate.html) . http://sci-toys.com/ingredients/calcium_propionate.html. Retrieved 2007-03-10.
5. ^ http://www.nysaes.cornell.edu/necfe/pubs/pdf/Venture/venture3_chemical.html
6. ^ "Keeping molds, bacteria at bay" (http://bakingmanagement.bakery-net.com/article/7448) .
http://bakingmanagement.bakery-net.com/article/7448. Retrieved 2007-03-24.
7. ^ Furia, T. E. (1973). CRC Handbook of Food Additives. CRC Handbook of Food Additives. CRC Press.
8. ^ Furia, T. E. (1973). CRC Handbook of Food Additives. CRC Handbook of Food Additives. CRC Press.
9. ^ D. F. MacFabe, D. P. Cain, K. Rodriguez-Capote, A. E. Franklin, J. E. Hoffman, F. Boon, A. R. Taylor, M.
Kavaliers and K.-P. Ossenkopp (2007). "Neurobiological effects of intraventricular propionic acid in rats: Possible
role of short-chain fatty acids on the pathogenesis and characteristics of autism spectrum disorders". Behavioral
Brain Research176 (1): 149169. doi:10.1016/j.bbr.2006.07.025 (http://dx.doi.org/10.1016%2Fj.bbr.2006.07.025
.10. ^ Pesticide Action Network data on calcium propanoate (http://www.pesticideinfo.org/Detail_Chemical.jsp?
Rec_Id=PC33679)
11. ^ Pesticide Action Network data on Vitamin C (http://www.pesticideinfo.org/Detail_Chemical.jsp?
Rec_Id=PC35665)
12. ^ Biggs, A. R.; El-Kholi, M. M.; El-Neshawy, S.; Nickerson, R. (1997). "Effects of Calcium Salts on Growth,
Polygalacturonase Activity, and Infection of Peach Fruit by Monilinia fructicola".Plant Disease81 (4): 399.
doi:10.1094/PDIS.1997.81.4.399 (http://dx.doi.org/10.1094%2FPDIS.1997.81.4.399) .
External links
Center for Science in the Public Interest list of food additives
(http://www.cspinet.org/reports/chemcuisine.htm)
Retrieved from "http://en.wikipedia.org/w/index.php?title=Calcium_propanoate&oldid=520905066"
Categories: Propionates Calcium compounds Food preservatives
This page was last modified on 1 November 2012 at 14:54.
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