title: LC-MS/APCI identification of glucoside esters and diesters of astaxanthin from the snow alga Chlamydomonas nivalis including their optical stereoisomers.
abstract: HPLC methods (LC-MS/APCI and chiral HPLC) were used for the identification of astaxanthin derivatives from the red snow alga Chlamydomonas nivalis collected in Austrian Alps, Slovak High Tatra Mountains and Bulgarian Pirin. We observed a striking difference in the composition of astaxanthin optical isomers in C. nivalis collected in geographically distinct regions. Furthermore, algae from the Pirin Mountains differed in the dominance of astaxanthin diglucoside diesters, suggesting an alternative strategy to enhance cell viability at low temperatures.
authors: Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague, Czech Republic. rezanka@biomed.cas.cz
authors: Tomáš
authors: T
authors: Řezanka
authors: Linda
authors: L
authors: Nedbalová
authors: Irena
authors: I
authors: Kolouchová
authors: Karel
authors: K
authors: Sigler
mesh_terms: D002470:Cell Survival; D002696:Chlamydomonas / Q000737:chemistry*; D002853:Chromatography, Liquid; D003080:Cold Temperature; D004952:Esters / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry*; D013058:Mass Spectrometry; D015394:Molecular Structure; D013237:Stereoisomerism; D024341:Xanthophylls / Q000737:chemistry
chemical_list: D004952:Esters; D005960:Glucosides; D024341:Xanthophylls; C005948:astaxanthine