Asam folat: Perbedaan antara revisi
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{{chembox
| Name = Folic acid
| ImageFile = Folicacid2.png
| ImageSize = 250px
| ImageName = Folic acid
| IUPACName = (2''S'')-2-[(4-{[(2-amino-4-hydroxypteridin-6-yl)methyl]amino}phenyl)formamido]pentanedioic acid
| OtherNames = ''N''-​(4-​{[(2-​amino-​4-​oxo-​1,​4-​dihydropteridin-​6-​yl)​methyl]​amino}​benzoyl)-​<small>L</small>-​glutamic acid; pteroyl-L-glutamic acid; Vitamin B<sub>9</sub>; Vitamin M; Folacin
| Section1 = {{Chembox Identifiers
|PubChem=6037
| SMILES = C1=CC(=CC=C1C(=O)NC<br>(CCC(=O)O)C(=O)O)<br>NCC2=CN=C3C(=N2)<br>C(=O)N=C(N3)N
| CASNo = 59-30-3
| CASNo_Ref = {{cascite}}
| RTECS = LP5425000
}}
| Section2 = {{Chembox Properties
| C=19 | H=19 | N=7 | O=6
| Appearance = yellow-orange crystalline powder
| Density =
| Solubility = 0.0016 mg/ml (25 °C)
| MeltingPt = 250 °C (523 K), [[Chemical decomposition|decomp.]]
| pKa = 1<sup>st</sup>: 2.3, 2<sup>nd</sup>: 8.3
}}
| Section7 = {{Chembox Hazards
| MainHazards = non-toxic, non-flammable}}
}}
'''Folic acid''' (also known as '''Vitamin B9'''<ref>{{cite web
| last = Ural
| first = Serdar H.
| authorlink =
| coauthors =
| title = Folic Acid and Pregnancy
| work =
| publisher = Kid's Health
| date = 2008-11
| url = http://kidshealth.org/parent/pregnancy_newborn/pregnancy/folic_acid.html
| format =
| doi =
| accessdate = 2009-03-19}}</ref> or '''Folacin''') and '''Folate''' (the naturally occuring form) are forms of the water-soluble [[B vitamins|Vitamin B<sub>9</sub>]]. Vitamin B9 (Folic acid and Folate inclusive) is essential to numerous bodily functions ranging from nucleotide synthesis to the remethylation of [[homocysteine]]. It is especially important during periods of rapid cell division and growth. Both children and adults require folic acid to produce healthy red blood cells and prevent anemia.<ref>Dietary Supplement Fact Sheet: Folate. Office of Dietary Supplements, National Institutes of Health. http://ods.od.nih.gov/factsheets/folate.asp</ref> Folate and Folic acid derive their names from the Latin word ''folium'' (leaf).
==Folate in foods and other sources==
[[Leafy vegetable]]s such as [[spinach]], [[turnip|turnip greens]], [[lettuce]]s, dried [[bean]]s and [[pea]]s, fortified [[cereal]] products, [[sunflower seed]]s and certain other [[fruit]]s and [[vegetable]]s are rich sources of folate. [[Liver]] and liver products also contain high amounts of folate, as does [[baker's yeast]]. Some [[breakfast cereal]]s (ready-to-eat and others) are fortified with 25% to 100% of the [[recommended dietary allowance]] (RDA) for folic acid. A table of selected food sources of folate and folic acid can be found at the USDA National Nutrient Database for Standard Reference.<ref name = USDA>{{cite web
| last =
| first =
| authorlink =
| coauthors =
| title = Reports by Single Nutrients
| work =
| publisher = USDA
| date = 2009-02-13
| url = http://www.ars.usda.gov/Services/docs.htm?docid=9673
| format =
| doi =
| accessdate = 2009-03-19}}</ref> Folic acid is added to grain products in many countries, and in these countries fortified products make up a significant source of folate <ref>Dietrich M, Brown CJ & Block G (2005) The effect of folate fortification of cereal-grain products on blood folate status, dietary folate intake, and dietary folate sources among adult non-supplement users in the United States. J Am Coll Nutr 24, 266-274.</ref>. Because of the difference in bioavailability between supplemented folic acid and the different forms of folate found in food, the dietary folate equivalent (DFE) system was established. 1 DFE is defined as 1 μg of dietary folate, or 0.6 μg of folic acid supplement. This is reduced to 0.5 μg of folic acid if the supplement is taken on an empty stomach.<ref>Suitor CW & Bailey LB (2000) Dietary folate equivalents: interpretation and application. J Am Diet Assoc 100, 88-94.</ref>
'''Asam folat''' adalah bentuk dari [[vitamin B]] yang larut dalam air. Asam ini terdapat secara alamiah dalam [[makanan]] dan dapat juga dimakan sebagai suplemen. Nama "folat" berasal dari kata bahasa Latin ''folium'' (daun).
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