TY - JOUR T1 - UHPLC-ESI-QqTOF-MS/MS characterization of minor chlorogenic acids in roasted Coffea arabica from different geographical origin. AU - De Rosso,Mirko, AU - Colomban,Silvia, AU - Flamini,Riccardo, AU - Navarini,Luciano, Y1 - 2018/08/09/ PY - 2018/02/22/received PY - 2018/06/15/revised PY - 2018/06/25/accepted PY - 2018/7/6/pubmed PY - 2018/11/21/medline PY - 2018/7/6/entrez KW - Arabica KW - UHPLC-QqTOF-MS/MS KW - coffee KW - dimethoxycinnamoyl KW - quinic acids SP - 763 EP - 771 JF - Journal of mass spectrometry : JMS JO - J Mass Spectrom VL - 53 IS - 9 N2 - Chlorogenic acids are relevant coffee quality markers, taste, and aroma precursors as well as important bioactive compounds. A number of mono-acyl, di-acyl, and tri-acyl quinic acid isomers were found in green coffee beans, being mono-caffeoyl, mono-feruloyl, mono-p-coumaroyl, and di-caffeoylquinic acid isomers considered as quantitatively major compounds. Roasting process increases the chemical complexity of coffee by inducing the formation of a number of lactones (quinides), shikimates, and other chlorogenic acids derivatives. So far, little attention has been paid in characterizing minor chlorogenic acids and derivatives in roasted Coffea arabica, also known as Arabica. In the present work, roasted C. arabica samples from different geographical origins (Brazil, Colombia, Costa Rica, Ethiopia, Guatemala, and India) were characterized by UHPLC-ESI-QqTOF-MS/MS. Several minor chlorogenic acid isomers were identified. In particular, HR-MS/MS provided putative identification of four dimethoxycinnamoyl-quinic acid derivatives, such as 4-dimethoxycinnamoylquinic acid, 4-dimethoxycinnamoyl-3-caffeoylquinic acid, 3-dimethoxycinnamoyl-4-feruloylquinic acid, 4-dimethoxycinnamoyl-5-feruloylquinic acid, and two caffeoyl, feruloyl quinic acid derivatives (3-caffeoyl-4-feruloylquinic acid and 3-feruloyl-4-caffeoylquinic acid). To our knowledge, these compounds were found in roasted Arabica coffee for the first time, and their presence is independent on the different geographical origins examined. SN - 1096-9888 UR - https://www.unboundmedicine.com/medline/citation/29974575/UHPLC_ESI_QqTOF_MS/MS_characterization_of_minor_chlorogenic_acids_in_roasted_Coffea_arabica_from_different_geographical_origin_ DB - PRIME DP - Unbound Medicine ER -