PHYSICOCHEMICAL CRITERIA, BIOACTIVE COMPOUNDS OF POMEGRANATE PEELS (Punica granatum L. SEFRI VARIETY) CULTIVATED IN BENI MELLAL, MOROCCO
LOUBNA CHAFKI *
Agro-food Technology and Quality Laboratory, Regional Center of Agricultural Research of Tadla, National Institute of Agricultural Research, Avenue Ennasr, BP 415 Rabat Principale, 10090 Rabat, Morocco and Laboratory of Biotechnology and Valorization of Phytogenetic Ressources, Faculty of Sciences and Technics, Sultan Moulay Slimane University, Beni Mellal, Morocco.
KAOUTAR ELFAZAZI *
Agro-food Technology and Quality Laboratory, Regional Center of Agricultural Research of Tadla, National Institute of Agricultural Research, Avenue Ennasr, BP 415 Rabat Principale, 10090 Rabat, Morocco.
HANANE AZZOUZI
Agro-food Technology and Quality Laboratory, Regional Center of Agricultural Research of Tadla, National Institute of Agricultural Research, Avenue Ennasr, BP 415 Rabat Principale, 10090 Rabat, Morocco and Laboratory of Environmental Engineering, Faculty of Sciences and Technics, Sultan Moulay Slimane University, Beni Mellal, Morocco.
MOUAD ACHCHOUB
Agro-food Technology and Quality Laboratory, Regional Center of Agricultural Research of Tadla, National Institute of Agricultural Research, Avenue Ennasr, BP 415 Rabat Principale, 10090 Rabat, Morocco and Laboratory of Environmental Engineering, Faculty of Sciences and Technics, Sultan Moulay Slimane University, Beni Mellal, Morocco.
SAMIR FAKHOUR
Plant Protection Laboratory, Regional Center of Agricultural Research of Tadla, National Institute of Agricultural Research, Avenue Ennasr, BP 415 Rabat Principale, 10090 Rabat, Morocco.
MOHAMED BENBATI
Animal Nutrition Laboratory, Regional Center of Agricultural Research of Tadla, National Institute of Agricultural Research, Avenue Ennasr, BP 415 Rabat Principale, 10090 Rabat, Morocco.
ABDELMAJID HADDIOUI
Laboratory of Biotechnology and Valorization of Phytogenetic Ressources, Faculty of Sciences and Technics, Sultan Moulay Slimane University, Beni Mellal, Morocco.
MOHAMED ELHANSALI
Laboratory of Biotechnology and Valorization of Phytogenetic Ressources, Faculty of Sciences and Technics, Sultan Moulay Slimane University, Beni Mellal, Morocco.
*Author to whom correspondence should be addressed.
Abstract
The chemical properties of pomegranate peel, from the labeled IGP Moroccan cultivar "Sefri d'Ouled Abdellah”, were evaluated. The pH, titratable acidity, soluble solids, powder color properties, ash content and dietary fibers were determined. Bioactive contents: total polyphenol content, flavonoids, condensed tannins, and water-soluble tannins were evaluated. The pomegranate peel has important ash content (10%±1) and remarkable dietary fibers (71±6.93%) compared to other fruits. The pomegranate peels contain considerable amounts of total polyphenols content (16.48±2.32 g EGA/100g DM), flavonoids (1.30±0.75 g ER/100g DM), water-soluble tannins (6.03±3.97 g ETA/100g DM), and condensed tannins (0.07± 0.01 g ETA/100 g DM). According to achieved results, pomegranate peel's high total polyphenols content, flavonoids, and tannin content have highlighted the potential of using it as a natural food preservative, nutritional supplement, or therapeutic product.
Keywords: Pomegranate peels, (Punica granatum L.), Sefri Ouled Abdellah, physiochemical properties, biochemical properties, Morocco
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