Characterization of phenolic compounds in different anatomical pear (Pyrus communis L.) parts by ultra-performance liquid chromatography photodiode detector-quadrupole/time of flight-mass spectrometry (UPLC-PDA-Q/TOF-MS)

• Published in: International journal of mass spectrometry Vol. 392; pp. 154 - 163
• Main Authors: Kolniak-Ostek, Joanna, Oszmiański, Jan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 03.12.2015
• Subjects: Leaves; Peel; Phenolics; Pulp; Seeds; UPLC/ESI–MS; Leaves; Peel; Seeds; UPLC/ESI–MS; Phenolics; Pulp
• ISSN: 1387-3806; 1873-2798
• DOI: 10.1016/j.ijms.2015.10.004

•Fruit by-products contain high levels of phenolic compounds.•The leaves and the seeds are characterized by the greatest diversity of phenolics.•Pear phenolics could be applied in the formulation of nutritional supplements. The aim of this study was to identify and compare phenolic acids and derivatives, flavan-3-ols, flavonols, flavones, hydrochalcones and anthocyanins in different anatomical pear parts. Fruits and leaves of ‘Radana’ pear (Pyrus communis L.) were used in this study. Seventy-two phenolic compounds were determined in the examined samples using ultra-performance liquid chromatography photodiode detector-quadrupole/time of flight-mass spectrometry (UPLC-PDA-Q/TOF-MS) method, and 27 phenolic acids and their derivatives, 19 flavan-3-ols, seven flavonols and one flavone were characterized for the first time in pear. Major qualitative differences were found in the phenolic profiles. The highest diversity of phenolics was found in leaves and seeds, while in the pulp the lowest number of phenolic compounds was identified.