Identification of both hydroxycinnamic and chlorogenic acids present in aqueous extracts of walnut leaves (Juglans regia L.) were carried out by using, for the first time, standard compounds not commercially available for qualitative identification. In particular, in addition to caffeic, ferulic, p-coumaric and sinapic acids, cis and trans mono-caffeoylquinic, dicaffeoylquinic, mono-feruloylquinic and cis and trans mono-p-coumaroylquinic acid isomers were detected and quantified by Ultra High Pressure Liquid Chromatography and the seasonal variations of these secondary metabolites were investigated.
Aqueous extracts of walnut (Juglans regia L.) leaves: quantitative analyses of hydroxycinnamic and chlorogenic acids
Gutiérrez Ortiz, Anggy Lusanna;Berti, Federico;Navarini, Luciano;Crisafulli, Paola;Colomban, Silvia;Forzato, Cristina
2018-01-01
Abstract
Identification of both hydroxycinnamic and chlorogenic acids present in aqueous extracts of walnut leaves (Juglans regia L.) were carried out by using, for the first time, standard compounds not commercially available for qualitative identification. In particular, in addition to caffeic, ferulic, p-coumaric and sinapic acids, cis and trans mono-caffeoylquinic, dicaffeoylquinic, mono-feruloylquinic and cis and trans mono-p-coumaroylquinic acid isomers were detected and quantified by Ultra High Pressure Liquid Chromatography and the seasonal variations of these secondary metabolites were investigated.| File | Dimensione | Formato | |
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Manuscript_Forzato.pdf
Open Access dal 15/05/2019
Descrizione: This is a pre-copyedited, author-produced version of an article accepted for publication in Journal of Chromatographic Science following peer review. The version of record is available online at: https://academic.oup.com/chromsci/article/56/8/753/4995613, DOI 10.1093/chromsci/bmy041
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JCS_2018.pdf
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