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Comparative metabolite profiling and chemical study of Ramalina siliquosa complex using LC-ESI-MS/MS approach.

Abstract : A chemical study of the lichen Ramalina siliquosa complex found in Brittany was conducted. Eight chemotypes were considered and their chemical composition was elucidated for the first time by LC-MS analysis. Ten main compounds were identified: conhypoprotocetraric acid (1), salazinic acid (2), peristictic acid (3), cryptostictic acid (4), protocetraric acid (5), stictic acid (6), norstictic acid (7), hypoprotocetraric acid (8), 4-O-demethylbarbatic acid (9), (+)-usnic acid (10) and 22 minor compounds were reported. The MS/MS fragmentation patterns of each compound of R. siliquosa complex were determined and proposed.
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https://hal.archives-ouvertes.fr/hal-00865388
Contributor : Muriel Cadieu <>
Submitted on : Tuesday, September 24, 2013 - 2:28:27 PM
Last modification on : Friday, May 29, 2020 - 9:20:35 AM

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Delphine Parrot, Saleem Jan, Nicolas Baert, Sylvain Guyot, Sophie Tomasi. Comparative metabolite profiling and chemical study of Ramalina siliquosa complex using LC-ESI-MS/MS approach.. Phytochemistry, Elsevier, 2013, 89, pp.114-24. ⟨10.1016/j.phytochem.2013.02.002⟩. ⟨hal-00865388⟩

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