2011
DOI: 10.1016/j.chroma.2011.08.047
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Comprehensive analysis of maté (Ilex paraguariensis) compounds: Development of chemical strategies for matesaponin analysis by mass spectrometry

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Cited by 38 publications
(36 citation statements)
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“…In order to determine its chemical composition, the fraction HE-Bu (2 mg) was hydrolyzed in 0.5 mL of 45% formic acid (v/v), 14 h, 100°C [19]. The sample was dried under N 2 stream, then mixed in n -butanol-H 2 O (1 : 1, v/v), yielding two layers which were separated and evaporated.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…In order to determine its chemical composition, the fraction HE-Bu (2 mg) was hydrolyzed in 0.5 mL of 45% formic acid (v/v), 14 h, 100°C [19]. The sample was dried under N 2 stream, then mixed in n -butanol-H 2 O (1 : 1, v/v), yielding two layers which were separated and evaporated.…”
Section: Methodsmentioning
confidence: 99%
“…The sample was dried under N 2 stream, then mixed in n -butanol-H 2 O (1 : 1, v/v), yielding two layers which were separated and evaporated. The organic layer was evaluated by liquid chromatography analysis, whereas the aqueous one was submitted to successive reduction in NaBH 4 and acetylation in pyridine-acetic anhydride (200  μ L; 1 : 1, v/v) to analyze the monosaccharide composition, by gas chromatography-mass spectrometry (GC-MS) [19]. …”
Section: Methodsmentioning
confidence: 99%
“…5 Isopropylidenation is a common derivatization used to block specific hydroxyl groups of monosaccharides, used in oligosaccharide synthesis [19]. In an analytical approach, isopropylidenation was used to improve the identification of saponins by mass spectrometry with different glycosylation patterns [20]. Isopropylidenation was also crucial to the correct identification of isomeric dicaffeoylquinic acids with potent antiulcer activity [21].…”
Section: Introductionmentioning
confidence: 99%
“…According to the literature, matesaponins in I. paraguariensis samples mainly consist of ursolic acid derivatives (22). + with two losses of 162 Da and one loss of 150 Da, corresponding to two glycosyl and one arabinosyl residues (23). Fragmentation associated with loss of sugar molecules is common, because matesaponins are glycosylated compounds.…”
Section: Discussionmentioning
confidence: 99%