A triterpenoid compound arising from loss of part of the carotene skeleton.
| Member | Definition | Role |
|---|
| 4,4'-diaponeurosporene | An apo carotenoid triterpenoid that is tetracosane which is substituted by methyl groups at positions 2, 6, 10, 15, 19, and 23, and contains double bonds at the 2-3 and 22-23 positions, and E-double bonds at the 4-5, 6-7, 8-9, 10-11, 12-13, 14-15, 16-17, and 18-19 positions. It is a yellow carotenoid pigment of Staphylococcus aureus. | 4,4'-diaponeurosporene |
| apocarotenal | An apo carotenoid triterpenoid compound arising from oxidative degradation of the beta,beta-carotene skeleton at the 8'-position. | 8'-apo-beta,psi-caroten-8'-al |
| staphyloxanthin | A xanthophyll that is beta-D-glucopyranose in which the hydroxy groups at positions 1 and 6 have been acylated by an all-trans-2,6,10,15,19,23-hexamethyltetracosa-2,4,6,8,10,12,14,16,18,22-decaenoyl group and a 12-methyltetradecanoyl group, respectively. Staphyloxanthin is responsible for the characteristic yellow-golden colour which gives the bacterium Staphylococcus aureus its name. | staphyloxanthin |