| 词条 | Gamma-Carotene |
| 释义 |
| Name = γ-Carotene | ImageFile = Gamma-carotene.svg | ImageSize = 270px | ImageAlt = Skeletal formula of γ-carotene | ImageFile1 = Gamma-Carotene-3D-spacefill.png | ImageSize1 = 270 | ImageAlt1 = Space-filling model of the γ-carotene molecule | IUPACName = β,ψ-Carotene | SystematicName = 2-((1E,3E,5E,7E,9E,11E,13E,15E,17E,19E)-3,7,12,16,20,24-hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaen-1-yl)-1,3,3-trimethylcyclohex-1-ene | OtherNames = β,psi-Carotene |Section1={{Chembox Identifiers | CASNo = 472-93-5 | PubChem = 5280791 | ChemSpiderID = 4444349 | ChEBI = 27740 | SMILES = C(/C1=C(/CCCC1(C)C)C)=C\\C(=C\\C=C\\C(=C\\C=C\\C=C(\\C=C\\C=C(\\C=C\\C=C(/C)CC\\C=C(/C)C)C)C)C)C | InChI = 1/C40H56/c1-32(2)18-13-21-35(5)24-15-26-36(6)25-14-22-33(3)19-11-12-20-34(4)23-16-27-37(7)29-30-39-38(8)28-17-31-40(39,9)10/h11-12,14-16,18-20,22-27,29-30H,13,17,21,28,31H2,1-10H3/b12-11+,22-14+,23-16+,26-15+,30-29+,33-19+,34-20+,35-24+,36-25+,37-27+ | InChIKey = HRQKOYFGHJYEFS-BXOLYSJBBV | StdInChI = 1S/C40H56/c1-32(2)18-13-21-35(5)24-15-26-36(6)25-14-22-33(3)19-11-12-20-34(4)23-16-27-37(7)29-30-39-38(8)28-17-31-40(39,9)10/h11-12,14-16,18-20,22-27,29-30H,13,17,21,28,31H2,1-10H3/b12-11+,22-14+,23-16+,26-15+,30-29+,33-19+,34-20+,35-24+,36-25+,37-27+ | StdInChIKey = HRQKOYFGHJYEFS-BXOLYSJBSA-N |Section2={{Chembox Properties | C=40|H=56 | Appearance = | Density = | MeltingPtC = 160 to 162 | MeltingPt_ref = [1] | BoilingPt = | Solubility = |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} γ-Carotene is a carotenoid, and is a biosynthetic intermediate for cyclized carotenoid synthesis in plants. It is formed from cyclization of lycopene by lycopene cyclase epsilon.[2] Along with several other carotenoids, γ-Carotene is a vitamer of vitamin A in herbivores and omnivores. Carotenoids with a cyclized, beta-ionone ring can be converted to vitamin A, also known as retinol, by the enzyme Beta-carotene 15,15'-dioxygenase; however, the bioconversion of gamma-carotene to retinol has not been well-characterized. References1. ^{{cite journal | author = Ruegg, R. | journal = Helvetica Chimica Acta | year = 1961 | volume = 44 | pages = 985–93 | doi = 10.1002/hlca.19610440414 | title = Synthesen in der Carotinoid-Reihe. 17. Mittelung. γ-Carotin sowie d,l-α- und β-Carotin aus Dehydro-β-apo-12′-carotinal(C25) | last2 = Schwieter | first2 = U. | last3 = Ryser | first3 = G. | last4 = Schudel | first4 = P. | last5 = Isler | first5 = O. | issue = 4}} {{carotenoids}}{{DEFAULTSORT:Carotene, gamma-}}{{organic-compound-stub}}2. ^Rodriguez-Concepcion M, Stange C. Biosynthesis of carotenoids in carrot: an underground story comes to light. Archives of biochemistry and biophysics. 2013;539:110-6. 2 : Carotenoids|Cyclohexenes |
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