Citral
Script error: No such module "Unsubst". Template:Dist <templatestyles src="Chembox/styles.css"/>
Template:Chembox image cellTemplate:Chembox image cellTemplate:Chembox image cellTemplate:Chembox image cellTemplate:Chembox AllOtherNamesTemplate:Chembox headerbarTemplate:Chembox IndexlistTemplate:Chembox JmolTemplate:Chembox ChEMBLTemplate:Chembox ECHATemplate:Chembox E numberTemplate:Chembox IUPHAR ligandTemplate:Chembox UNIITemplate:Chembox CompToxTemplate:Chembox headerbarTemplate:Chembox headerbarTemplate:Chembox GHS (set)Template:Chembox headerbarTemplate:Chembox Datapage checkTemplate:Chembox Footer| Template:Longitem | Template:Unbulleted list |
| ChEBI | Template:Unbulleted list |
| ChemSpider | Template:Unbulleted list |
| DrugBank | Template:Unbulleted list |
| EC Number | Template:Unbulleted list |
| KEGG | Template:Unbulleted list |
| Template:Longitem | Template:Unbulleted list |
| RTECS number | Template:Unbulleted list |
| UN number | 2810 |
| Script error: No such module "collapsible list". | |
| Script error: No such module "collapsible list". | |
| Template:Longitem | C10H16O |
| Molar mass | 152.24 g/mol |
| Appearance | Pale yellow liquid |
| Odor | Lemon like |
| Density | 0.893 g/cm3 |
| Boiling point | Template:Chembox CalcTemperatures |
| Vapor pressure | 0.22Script error: No such module "String".mmHg (20Script error: No such module "String".°C) |
| Template:Longitem | Script error: No such module "val". |
| NFPA 704 (fire diamond) | Template:NFPA 704 diamond |
| Flash point | Template:Chembox CalcTemperatures |
| Template:Longitem | Template:Ubl |
Template:Chembox Footer/trackingScript error: No such module "TemplatePar".Template:Short description
Citral is an acyclic monoterpene aldehyde. Being a monoterpene, it is made of two isoprene units. Citral is a collective term which covers two geometric isomers that have their own separate names; the E-isomer is named geranial (trans-citral; α-citral[2]) or citral A. The Z-isomer is named neral (cis-citral; β-citral[2]) or citral B. These stereoisomers occur as a mixture, often not in equal proportions; e.g. in essential oil of Australian ginger, the neral to geranial ratio is 0.61.[3]
Natural Occurrence
Citral is present in the volatile oils of several plants:[4][5][6]
Further, in the lipid fraction (essential oil) of Australian ginger (51–71%)[3] Of the many sources of citral, the Australian myrtaceous tree, lemon myrtle, Backhousia citriodora F. Muell. (of the family Myrtaceae), is considered superior.[7]
Uses
Citral is a precursor in the industrial production of vitamin A, vitamin E, vitamin K.
Citral is also precursor to lycopene, ionone and methylionone.
Fragrances
Citral has a strong lemon (citrus) scent and is used as an aroma compound in perfumery. It is used to fortify lemon oil. (Nerol, another perfumery compound, has a less intense but sweeter lemon note.) The aldehydes citronellal and citral are considered key components responsible for the lemon note with citral preferred.[7]
It also has pheromonal effects in acari and insects.[8][9]
The herb Cymbopogon citratus has shown promising insecticidal and antifungal activity against storage pests.[10]
Food additive
Citral is commonly used as a food additive ingredient.[11]
It has been tested (2016) in vitro against the food-borne pathogen Cronobacter sakazakii.[12]
See also
References
<templatestyles src="Reflist/styles.css" />
- ↑ Citral, The Merck Index, 12th Edition.
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
Script error: No such module "Check for unknown parameters".
External links
- MSDS Script error: No such module "webarchive".