Open AccessSterols and Other Metabolites from Freshwater Microalga Chlorococcum infusionum (Schrank) Meneghini
Author(s) -
Consolacion Y. Ragasa,
Emelina H. Mandia,
Maria Carmen S. Tan,
Glenn G. Oyong,
Cynthia F. Madrazo,
Aristotle T. Ubando,
Alvin B. Culaba,
Chien Chang Shen
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22656
Subject(s) - chemistry , dichloromethane , lutein , nuclear magnetic resonance spectroscopy , organic chemistry , carotenoid , stereochemistry , botany , biochemistry , solvent , biology
Chemical investigation of the dichloromethane extract of Chlorococcum infusionum afforded a mixtureof chondrillasterol (1) and 22-dihydrochondrillasterol (2) in a 3:1 ratio as the major sterols, and lutein(3), triacylglycerols (4), fatty acids (5) and hydrocarbons (6) as the minor compounds. The structuresof compounds 1 and 2 were elucidated by extensive 1D and 2D NMR spectroscopy, while compounds3-6 were identified by comparison of their NMR data.