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Polyphenol Characterization and Antioxidant Activity of Grape Seeds and Skins from Sicily: A Preliminary Study

Author

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  • Vita Di Stefano

    (Department of Biological, Chemical and Pharmaceutical Science and Technology (STEBICEF), University of Palermo, Via Archirafi, 90123 Palermo, Italy)

  • Carla Buzzanca

    (Department of Biological, Chemical and Pharmaceutical Science and Technology (STEBICEF), University of Palermo, Via Archirafi, 90123 Palermo, Italy)

  • Maria Grazia Melilli

    (National Research Council of Italy (CNR), Institute of BioEconomy (IBE)—SS Catania, Via Paolo Gaifami, 18, 95126 Catania, Italy)

  • Serena Indelicato

    (Department of Biological, Chemical and Pharmaceutical Science and Technology (STEBICEF), University of Palermo, Via Archirafi, 90123 Palermo, Italy)

  • Manuela Mauro

    (Department of Biological, Chemical and Pharmaceutical Science and Technology (STEBICEF), University of Palermo, Via Archirafi, 90123 Palermo, Italy)

  • Mirella Vazzana

    (Department of Biological, Chemical and Pharmaceutical Science and Technology (STEBICEF), University of Palermo, Via Archirafi, 90123 Palermo, Italy)

  • Vincenzo Arizza

    (Department of Biological, Chemical and Pharmaceutical Science and Technology (STEBICEF), University of Palermo, Via Archirafi, 90123 Palermo, Italy)

  • Massimo Lucarini

    (CREA—Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy)

  • Alessandra Durazzo

    (CREA—Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy)

  • David Bongiorno

    (Department of Biological, Chemical and Pharmaceutical Science and Technology (STEBICEF), University of Palermo, Via Archirafi, 90123 Palermo, Italy)

Abstract

The interest in the consumption of health-promoting foods has led to identifying derivatives of the wine industry as products to increase the functional properties of different foods or to design new functional foods. The main goal of this study is to characterize and valorize byproducts and wastes of Sicilian grapes as new sources of bioactive components, from the perspective of a circular economy and a biorefinery approach. In particular, this research investigated: 1. the total phenolic content and antioxidant activities and 2. the phenolic profiles of free and bound fractions of defatted grape seeds and red grape skins from Sicily. Defatted grape seeds (DGS) and red grape skins (RGSK) are rich in phenolic compounds. Twenty biophenols were found in the defatted seeds and red grape skins. Particularly interesting were the results obtained after basic hydrolysis, which allowed the release of biophenols from the matrix. The degreased grape seeds showed p-coumaric acid levels at 4641.65 µg g −1 , gallic acid at 2649.23 µg g −1 , and caffeic acid at 1474.13 µg g −1 , along with appreciable quantities of myricetin, epicatechin, and quercetin. As a sustainable approach, the reuse and the value added of the byproducts and wastes of grapes grown in Sicily is shown, which makes possible new applications in different fields, i.e., nutraceuticals.

Suggested Citation

  • Vita Di Stefano & Carla Buzzanca & Maria Grazia Melilli & Serena Indelicato & Manuela Mauro & Mirella Vazzana & Vincenzo Arizza & Massimo Lucarini & Alessandra Durazzo & David Bongiorno, 2022. "Polyphenol Characterization and Antioxidant Activity of Grape Seeds and Skins from Sicily: A Preliminary Study," Sustainability, MDPI, vol. 14(11), pages 1-10, May.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:11:p:6702-:d:828086
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    References listed on IDEAS

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    1. Vita Di Stefano & David Bongiorno & Carla Buzzanca & Serena Indelicato & Antonello Santini & Massimo Lucarini & Antonio Fabbrizio & Manuela Mauro & Mirella Vazzana & Vincenzo Arizza & Alessandra Duraz, 2021. "Fatty Acids and Triacylglycerols Profiles from Sicilian (Cold Pressed vs. Soxhlet) Grape Seed Oils," Sustainability, MDPI, vol. 13(23), pages 1-10, November.
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    Cited by:

    1. Afroditi Michalaki & Elpida Niki Iliopoulou & Angeliki Douvika & Constantina Nasopoulou & Dimitris Skalkos & Haralabos Christos Karantonis, 2022. "Bioactivity of Grape Skin from Small-Berry Muscat and Augustiatis of Samos: A Circular Economy Perspective for Sustainability," Sustainability, MDPI, vol. 14(21), pages 1-11, November.
    2. Fabiola Sciacca & Nino Virzì & Nicola Pecchioni & Maria Grazia Melilli & Carla Buzzanca & Sonia Bonacci & Vita Di Stefano, 2023. "Functional End-Use of Hemp Seed Waste: Technological, Qualitative, Nutritional, and Sensorial Characterization of Fortified Bread," Sustainability, MDPI, vol. 15(17), pages 1-13, August.
    3. Riye Sha & Shuhua Zhu & Linnan Wu & Xujiao Li & Huanhuan Zhang & Dongdong Yao & Qi Lv & Fangxia Wang & Fengyun Zhao & Pengcheng Li & Kun Yu, 2022. "Pre-Harvest Application of Multi-Walled Carbon Nanotubes Improves the Antioxidant Capacity of ‘Flame Seedless’ Grapes during Storage," Sustainability, MDPI, vol. 14(15), pages 1-16, August.

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