Reaction Process: PlantCyc:POTATO_PWY-6809

neoxanthin biosynthesis related metabolites

find 2 related metabolites which is associated with chemical reaction(pathway) neoxanthin biosynthesis

trans-neoxanthin ⟶ 9'-cis-neoxanthin

Violaxanthin

(1R,3S,6S)-6-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-ol

C40H56O4 (600.4178)


Violaxanthin belongs to the class of organic compounds known as xanthophylls. These are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Xanthophylls arise by oxygenation of the carotene backbone. Thus, violaxanthin is considered to be an isoprenoid lipid molecule. Violaxanthin is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. Violaxanthin is an orange-coloured pigment that is found in brown algae and various plants (e.g. pansies). It is biosynthesized from the epoxidation of zeaxanthin. Violaxanthin is a food additive that is only approved for use in Australia and New Zealand (INS: 161e) (PMID: 29890662). 3 (violaxanthin, zeaxanthin and antheraxanthin) participate in series of photo-induced interconversions known as violaxanthin cycle; Xanthophyll; a carotene epoxide that is precursor to capsanthin; cleavage of 9-cis-epoxycarotenoids (violaxanthin) to xanthoxin, catalyzed by 9-cis-epoxycarotenoid dioxygenase, is the key regulatory step of abscisic acid biosynthesis; one of 3 xanthophylls involved in evolution of plastids of green plants (oxygen evolution). (all-E)-Violaxanthin is found in many foods, some of which are orange bell pepper, passion fruit, pepper (c. annuum), and italian sweet red pepper. D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids

   

cis-Neoxanthin

(1R,3S)-6-[(3E,5E,7E,9E,11E,13E,15Z,17E)-18-[(1S,4S,6R)-4-hydroxy-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-ylidene]-1,5,5-trimethylcyclohexane-1,3-diol

C40H56O4 (600.4178)


Cis-neoxanthin is a member of the class of compounds known as xanthophylls. Xanthophylls are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Xanthophylls arise by oxygenation of the carotene backbone. Cis-neoxanthin is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Cis-neoxanthin can be found in ginkgo nuts and potato, which makes cis-neoxanthin a potential biomarker for the consumption of these food products. D020011 - Protective Agents > D000975 - Antioxidants > D002338 - Carotenoids