Optimized microwave-assisted extraction of total phenolic and flavonoid contents from defatted seeds and press residue of Opuntia ficus-indica (l.) mill

  • Souad Khaled Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS), Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie https://orcid.org/0009-0001-2793-6939
  • Amokrane Mahdeb Division de Recherche Agrosystèmes de Montagne, Institut National de la Recherche Agronomique d’Algérie, Station Oued-Ghir, 06000 Bejaia, Algérie https://orcid.org/0000-0002-8050-3868
  • Azzedine Mazari Division de Recherche des Technologies Agroalimentaires, Institut National de la Recherche Agronomique d’Algérie, Station Mehdi Boualem, BP37, Baraki, Alger, 16000, Algérie https://orcid.org/0000-0001-8391-0146
  • Farid Dahmoune Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS), Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie; Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS), Faculté des Sciences de la Nature et de la Vie et des Sciences de la Terre, Université de Bouira, 10000 Bouira, Algérie https://orcid.org/0000-0001-6072-0411
  • Meriem Amrane-Abider Centre de Recherche en Technologies Agro-alimentaires. Route de Targua Ouzemmour, 06000 Bejaia, Algérie https://orcid.org/0000-0003-2831-3271
  • Mohamed Hamimeche Laboratoire de Zoologie Appliquée et d’écophysiologie animale (LZA), Faculté des Sciences de la Nature et de la Vie, Université de Jijel, Algérie https://orcid.org/0000-0002-3363-5577
  • Lydia Terki Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS), Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie https://orcid.org/0009-0001-2428-5552
  • Khodir Madani Laboratoire de Biomathématiques, Biophysique, Biochimie, et Scientométrie (L3BS), Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, 06000 Bejaia, Algérie; Centre de Recherche en Technologies Agro-alimentaires. Route de Targua Ouzemmour, 06000 Bejaia, Algérie https://orcid.org/0000-0001-5356-6890
Keywords: antioxidants, Microwave-Assisted Extraction (MAE), Opuntia ficus-indica, press residue, RSM-modelling, seeds

Abstract

Phenolic content of Opuntia ficus indica (OFI) was estimated in samples of seeds and press residue (cake) generated through mechanical oil extraction process. A microwave-assisted extraction (MAE) method was investigated for the optimization of the extracted total phenolic (TPC) and total flavonoid contents (TFC). The influence of extraction parameters on the yields of TPC, TFC were modelled using a second-order regression equation. The optimal MAE conditions were: 61.65 % ethanol concentration, 633.42 W microwave power, 3.59 min irradiation time and 46.28 mL/g solid-to-liquid ratio (SLR) for phenolics extraction, and 54.97 %, 580.04 W, 3.20 min and 47.40 mL/g for flavonoids extraction from defatted seeds powder. The extracts obtained under these conditions showed a TPC and TFC of 416.311±1.154 mg gallic acid equivalent (GAE) per100 g dry weight (DW) and 52.67±0.72 mg quercetin equivalent (QE)/100 g DW, respectively. Regarding press residue, the optimal conditions were 60.26%, 643.89 W, 3.85 min and 47.28 mL/g for phenolics extraction, and 67.96 %, 464.41 W, 2.46 min and 41.04 mL/g for flavonoids extraction; with a TPC and TFC of 400.11±3.14 mg GAE/100 g DW and 38.75±0.16 mg QE/100g DW, respectively. The results of the present study confirmed that OFI seeds and press residues could be considered as a non-negligible source of phenolics with a good antioxidant activity and revealed that MAE is a reliable method for optimizing yields of recovered phytochemicals from such agricultural products derivatives and by-products, with an intent to be scaled-up for industrial, nutraceutical or pharmaceutical applications.

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Published
2024-03-05
How to Cite
Khaled, Souad, Amokrane Mahdeb, Azzedine Mazari, Farid Dahmoune, Meriem Amrane-Abider, Mohamed Hamimeche, Lydia Terki, and Khodir Madani. 2024. “Optimized Microwave-Assisted Extraction of Total Phenolic and Flavonoid Contents from Defatted Seeds and Press Residue of Opuntia Ficus-Indica (l.) Mill”. The Annals of the University Dunarea De Jos of Galati. Fascicle VI - Food Technology 48 (1), 24-43. https://doi.org/https://doi.org/10.35219/foodtechnology.2024.1.02.
Section
ORIGINAL ARTICLES