2026-04-13T07:05:04Zhttps://recercat.cat/oai/request

oai:recercat.cat:10459.1/668262024-12-05T21:41:01Zcom_2072_3622col_2072_479130

00925njm 22002777a 4500 dc Delpino Rius, Antoni author Eras i Joli, Jordi author Gatius Cortiella, Ferran author Balcells Fluvià, Mercè author Canela i Garayoa, Ramon author 2019-10-25T17:50:02Z 2019-10-25T17:50:02Z 2019-09-10 Here we authenticated single-varietal peach purees and pear juices on the basis of primary metabolite and phenolic compound analysis by Proton Nuclear Magnetic Resonance (1H-NMR) and Ultra Performance Liquid Chromatography coupled to Photodiode Array and Tandem Mass Spectrometry (UPLC-PDA-MS/MS), respectively. After suitable preprocessing, the 1H-NMR and chromatographic data were evaluated by principal component analysis (PCA). The PCA combining data from primary metabolites and phenolic compounds allowed the separation of the clusters in all cases, allowing discrimination of processed and unprocessed peach purees, both separately and pooled. The PCA of primary metabolites allowed the cluster separation of purees of distinct peach varieties but not between processed and non-processed purees. The PCA of phenolic compounds allowed better cluster separation than of primary metabolites. For pear juices, both PCA approaches allowed satisfactory discrimination of Alejandrina, Conference, and Blanquilla cultivars. These approaches may help to better control cultivar authenticity in fruit products. It could therefore contribute to the development of a process to achieve products characterized by a quality characteristic of a given cultivar. This research was funded by the Catalan Government, grant number [2017 SGR 828]. http://hdl.handle.net/10459.1/66826 Authentication Primary metabolites Phenolic compounds Combined analysis of primary metabolites and phenolic compounds to authenticate commercial monovarietal peach purees and pear juices