Identification of apples rich in health-promoting flavan-3-ols and phenolic acids by measuring the polyphenol profile

Ceymann, Maria; Arrigoni, Eva; Schärer, Hans-Jakob; Nising, Anna Bozzi; Hurrell, Richard F.

doi:10.1016/j.jfca.2011.12.002

Cited by 105 publications

(110 citation statements)

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“…Specific studies aimed at comparing total phenolic content in commercial and ancient apple cultivars were performed by Iacopini et al (2010) and Ceymann et al (2012). The commercial cultivars were characterized by lower phenolic content and antioxidant activity compared to old varieties, in agreement with our results.…”

Section: Resultssupporting

confidence: 85%

Comparison of physicochemical traits of red-fleshed, commercial and ancient apple cultivars

Contessa¹,

Botta²

2016

Hort. Sci. (Prague)

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Contessa C., Botta R. (2016) Cultivation of apples is currently based on a limited number of commercial cultivars; as a consequence, ancient and local varieties have almost completely disappeared. Red-fleshed, ancient and commercial cultivars were analysed for flesh firmness, soluble solid content, pH, titratable acidity, total phenolics and anthocyanin contents, total antioxidant capacity, sugars and organic acids composition, to evaluate their nutraceutical value. The ancient cultivars, in particular cv. Magnana, were generally higher in organic acids, sugars content and total phenolics content in the flesh than the commercial cultivars considered. The red-fleshed cultivar was distinct from the ancient and commercial apples and resulted in an excellent source of antioxidants, with values of anthocyanins content and antioxidant capacity five times higher than the other cultivars; these values were comparable to those of berry species. In addition, the red-fleshed apple was rich in malic acid, citric acid, fructose and glucose. The breeding of red flesh apples is still in progress and should consider the use of ancient cultivars for their positive physicochemical characteristics to improve flavour and storage aptitude.

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Section: Resultssupporting

confidence: 85%

Comparison of physicochemical traits of red-fleshed, commercial and ancient apple cultivars

Contessa¹,

Botta²

2016

Hort. Sci. (Prague)

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“…C enriched cranberry supplement is reflected in the excellent correlation with AA. For apple juice 44,45 and beer, 18,46 in which the major polyphenols are hydroxycinnamic acid and flavan-3-ols, the best correlation is observed with model antioxidants within these groups.…”

Section: Correlation Between Aops Determined For Complex Samples Amentioning

confidence: 99%

The Methodology Applied in DPPH, ABTS and Folin-Ciocalteau Assays Has a Large Influence on the Determined Antioxidant Potential

Abramovič¹,

Grobin²,

Ulrih³

et al. 2017

ACSi

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Antioxidant potential (AOP) is not only the property of the matrix analyzed but also depends greatly on the methodology used. The chromogenic radicals 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (and Folin-Ciocalteu (FC) assay were applied to estimate how the method and the composition of the assay solvent influence the AOP determined for coffee, tea, beer, apple juice and dietary supplements. Large differences between the AOP values depending on the reaction medium were observed, with the highest AOP determined mostly in the FC assay. In reactions with chromogenic radicals several fold higher values of AOP were obtained in buffer pH 7.4 than in water or methanol. The type of assay and solvent composition have similar influences on the reactivity of a particular antioxidant, either pure or as part of a complex matrix. The reaction kinetics of radicals with antioxidants in samples reveals that AOP depends strongly on incubation time, yet differently for each sample analyzed and the assay applied.

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“…Sampling and sample treatment for the quantification of the total phenolic content (TPC) and antioxidative potential by ferric reducing antioxidant power (FRAP) were done as described in other studies [42,43]. At harvest, 20 fruits out of the whole production per tree were randomly chosen and pooled in one sample.…”

Section: Fruit Quality Parametersmentioning

confidence: 99%

“…homogenisation. Extracts were allowed to stand at room temperature for 1 h to sediment, before an aliquot of the supernatant was directly used for the analysis of TPC by the FolinCiocalteu method [42] and the FRAP method [43]. Both tests were carried out on a Konelab Arena 20XT analyser (Thermo Fisher Scientific Oy, Vantaa, Finland).…”

Section: Fruit Quality Parametersmentioning

confidence: 99%

“…Both tests were carried out on a Konelab Arena 20XT analyser (Thermo Fisher Scientific Oy, Vantaa, Finland). An external catechin standard calibration was used for quantification, and the results were expressed as mg catechin equivalents (CE) 100 g −1 edible fruit (FM) [42,43]. Vitamin C, ascorbic acid and dehydroascorbic acid were quantified after extracting 5.0 g of the above-mentioned frozen powder with 50 mL phosphate buffer containing 1 g L −1 DLdithiothreitol.…”

Section: Fruit Quality Parametersmentioning

confidence: 99%

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Influence of irrigation strategies on productivity, fruit quality and soil-plant water status of subsurface drip-irrigated apple trees

Chenafi

Monney

Arrigoni

et al. 2016

Fruits

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-Introduction. The aim of this work was to study the effects of regulated deficit irrigation (RDI) on fruit yield, fruit weight and fruit quality parameters, as well as soil-plant water relations, in apple orchards under highfrequency subsurface drip irrigation in a region with a continental climate. Materials and methods. Four irrigation treatments were applied in 2010 and 2011 to apple trees cv. 'Gala': T1, no irrigation; T2, optimal irrigation except during summer; T3, optimal irrigation except during summer when RDI with a threshold for irrigation at −1.2 MPa midday stem water potential (Ψ stem) was utilised; T4, optimal irrigation. The soil water status and plant water status were followed over two growing seasons. Results and discussion. The irrigation treatments had no significant impact on fruit yield. However, compared with optimal irrigation (T4) and RDI (T3), the absence of irrigation in summer (T1, T2) induced low Ψ stem (< −1.2 MPa), decreased fruit size and slightly increased the soluble solid, vitamin C and polyphenol contents of the fruits. The RDI (T3) during summer allowed a water-use reduction of 47% without loss in fruit yield, fruit weight and fruit quality compared with the optimal irrigation (T4). Conclusion. The RDI treatment saved 47% water compared with optimal irrigation without negative impacts on yield and fruit quality. In the temperate conditions of Switzerland, Ψ stem, as well as Ψ soil, are well adapted for scheduling RDI in apple orchards.Keywords: Switzerland / apple / Malus domestica / irrigation scheduling / regulated deficit irrigation / water stress / phenolics / vitamin C Résumé -Influence de stratégies d'irrigation sur la productivité, la qualité des fruits et le statut hydrique sol-plante de pommiers arrosés en goutte à goutte enterré. Introduction. Le but de cette étude a été d'analyser les effets de la régulation déficitaire de l'irrigation (RDI), avec des applications d'eau en goutte à goutte enterré à fréquence élevée, sur le rendement en fruits, le poids des fruits, et la qualité des fruits, ainsi que sur les relations hydriques entre sol et plante sur des vergers de pommier sous un climat continental. Matériel et méthodes. Quatre procédés d'irrigation ont été appliqués aux pommiers (cv. 'Gala') en 2010 et 2011 : T1, témoin non irrigué ; T2, irrigation optimal à l'exception d'absence d'irrigation durant l'été ; T3, irrigation optimal à l'exception une restriction d'irrigation induisant un stress modéré durant l'été, avec un seuil fixé à -1.2 MPa de Ψ stem (irrigation déficitaire régulée, RDI) ; T4, irrigation optimale. L'impact de ces régimes sur le potentiel hydrique du sol (Ψ soil) et le potentiel hydrique du tronc (Ψ stem) a été suivi pendant deux saisons. Résultats et discussion. Les régimes d'irrigation n'ont eu aucun impact significatif sur le rendement en fruits. Toutefois, par rapport à l'irrigation optimale (T4) et RDI (T3), l'absence d'irrigation en été (T1, T2) induit des potentiels de tronc bas (Ψ stem < -1,2 MPa) et une diminution du poids des ...

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Identification of apples rich in health-promoting flavan-3-ols and phenolic acids by measuring the polyphenol profile

Cited by 105 publications

References 50 publications

Comparison of physicochemical traits of red-fleshed, commercial and ancient apple cultivars

Comparison of physicochemical traits of red-fleshed, commercial and ancient apple cultivars

The Methodology Applied in DPPH, ABTS and Folin-Ciocalteau Assays Has a Large Influence on the Determined Antioxidant Potential

Influence of irrigation strategies on productivity, fruit quality and soil-plant water status of subsurface drip-irrigated apple trees

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