Review Article

Colorful World of Microbes: Carotenoids and Their Applications

Table 2

List of naturally produced pigments and their examples.

Group Example

HydrocarbonsLycopersene, Phytofluene, Hexahydrolycopene, Torulene, and α-Zeacarotene
AlcoholsAlloxanthin, Cynthiaxanthin, Pectenoxanthin, Cryptomonaxanthin,
Crustaxanthin, Gazaniaxanthin, OH-Chlorobactene, Loroxanthin,
Lycoxanthin, Rhodopin, Rhodopinol aka Warmingol, and Saproxanthin
GlycosidesOscillaxanthin, Phleixanthophyll
EtherRhodovibrin, Spheroidene
EpoxidesDiadinoxanthin, Luteoxanthin, Mutatoxanthin, Citroxanthin, Zeaxanthin
furanoxide, Neochrome, Foliachrome, Trollichrome, and Vaucheriaxanthin
AldehydesRhodopinal, Wamingone, and Torularhodinaldehyde
Acids and estersTorularhodin, Torularhodin methyl ester
KetonesCanthaxanthin aka Aphanicin, Chlorellaxanthin, Capsanthin,
Capsorubin, Cryptocapsin, 2,2′Diketospirilloxanthin, Flexixanthin,
Phoenicoxanthin, Hydroxyspheriodenone, Pectenolone, Phoeniconone aka Dehydroadonirubin, Phoenicopterone, Rubixanthone, and Siphonaxanthin
Esters of alcoholsAstacein, Fucoxanthin, Isofucoxanthin, Physalien, Zeaxanthin
dipalmitate, and Siphonein
Apocarotenoidsβ-Apo-2′-carotenal, Apo-2-lycopenal, Apo-6′-lycopenal, Azafrinaldehyde,
Bixin, Citranaxanthin, Crocetin, Crocetinsemialdehyde, Crocin Digentiobiosyl,
Hopkinsiaxanthin, Paracentrone, and Sintaxanthin
Nor or seco carotenoidsActinioerythrin, β-Carotenone, Peridinin, Pyrrhoxanthininol, Semi-α-carotenone,
Semi-β-carotenone, and Triphasiaxanthin
Retro carotenoids and
retro apocarotenoids
Eschscholtzxanthin, Eschscholtzxanthone, Rhodoxanthin, and Tangeraxanthin
Higher carotenoidNonaprenoxanthin, Decaprenoxanthin, and Bacterioruberin