Polyphenolic Composition, Antioxidant Activity, and Polyphenol Oxidase (PPO) Activity of Quince (Cydonia oblonga Miller) Varieties
Aneta Wojdyło , Jan Oszmiański , Pawel Bielicki
AbstractPhytochemical profiles (phenolic compounds, L-ascorbic acid, antioxidant and PPO activities) of 13 different quince varieties and 5 genotypes were studied. Polyphenols were identified by LC-PDA-QTof/MS and quantified by UPLC-PDA and UPLC-FL. A total of 26 polyphenolic compounds found in quince tissues were identified and presented: 9 flavan-3-ols ((-)-epicatechin, procyanidin B2, 3 procyanidin dimers and trimers, and 1 tetramer); 8 hydroxycinnamates, derivatives of caffeoylquinic and coumaroylquinic acid; and 9 kaempferol and quercetin derivatives. The content of total polyphenols was between 170943 (genotype `S1') and 3436.56 mg/100 g dry weight ('Leskovac'). Flavan-3-ols, which are the major class of quince polyphenols, represented between 78 and 94% of the total polyphenolic compounds. The activity of PPO enzyme ranged from 709.85 to 1284.59 Delta U/min, and that of L-ascorbic acid ranged from 5.86 to 2642 mg/100 g. Some quince varieties and their products characterized by a higher content of phenolic compounds may be selected to promote their positive effect on health.
|Journal series||Journal of Agricultural and Food Chemistry, ISSN 0021-8561, (A 45 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||polyphenols; polymeric procyanidins; mDP; LC-MS-QTof; L-ascorbic acid; antioxidant activity; bioactive compounds; PPO|
|Score|| = 40.0, 10-09-2020, ArticleFromJournal|
= 45.0, 10-09-2020, ArticleFromJournal
|Publication indicators||= 70; = 84; : 2013 = 1.466; : 2013 = 3.107 (2) - 2013=3.387 (5)|
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