Etude de la variabilité nutritionnelle des fruits de Ziziphus mauritiana Lam et de sa variété greffée Ziziphus mauritiana var Gola

Harouna TIRERA1,2*, Idrissa NDOYE1, Mamadou FAYE3, Malick GAYE2, Rokhaya GUEYE2, Elhadji Ousmane FAYE2, Sokhna NDAO DIAO2, Kadidiatou THIAM2, Mohamed Elbachir NACO2, Thierno Mouhamed WANE2, Pape Issakha DIEYE2, Yérim Mbagnick DIOP2, Amadou DIOP2, Alassane Wélé1, Bara NDIAYE2, Serigne Omar SARR2

1 : Laboratoire de Chimie Physique, Chimie Minérale, Chimie Organique et Thérapeutique, Université Cheikh Anta Diop (UCAD), Sénégal.

2 : Laboratoire de Chimie Analytique et Bromatologie, Université Cheikh Anta Diop (UCAD), Université Cheikh Anta Diop, BP

5005, Dakar, Sénégal.

3 : Institut de Technologie Nucléaire Appliquée, Université Cheikh Anta Diop, BP 5005 Dakar-Fann, Sénégal.

*Correspondence: harounatirera@hotmail.fr 

Abstract: Ziziphus mauritiana is a plant belonging to the Rhamnaceae family, widely distributed in northern Senegal. The fruits of Ziziphus mauritiana are a source of income and have many therapeutic properties. Deficiency in mineral elements and the presence of free radicals lead to a number of illnesses. Malnutrition, oxidative stress and underlying non-communicable diseases are therefore a major public health problem in Africa. So the study aimed to evaluate the nutritional quality of two varieties of Ziziphus mauritiana, a grafted variety of Ziziphus mauritian var Gola and the wild variety of Ziziphus mauritiana Lam from Bokidiawé. The results showed that the grafted variety was more active with DPPH and ABTS, indicating superior antioxidant properties with lower inhibitory concentrations (652.52 ± 0.005; 13.869 ± 0.005 mg/ml), respectively. For Ziziphus mauritian Lam, the inhibitory concentrations were (911.1 ± 0.004 to 84.330 ± 0.011 µg/ml), DPPH and ABTS, respectively. As for phytochemicals, Ziziphus mauritiana Lam had less polyphenols and flavonoids than Ziziphus mauritiana var Gola, (25.79 ± 0.22; 70.91 ± 1.01 mg EAG/g) dry matter, respectively for polyphenols; (5.0 ± 0.2; 30.0 ± 0.9 mg EQ/g) dry matter, respectively for flavonoids. The reducing sugar and protein content of Ziziphus mauritianaLam is more than double that of Ziziphus mauritiana var Gola, with values of (71.915 ± 1.002; 40.225 ± 0.925 g Eq glucose.100 g-1) dry matter glucose and (16.5 ± 0.5; 5.5 ± 0.2 mg EBD/100g) dry matter protein, respectively.

Keywords: Minerals, proteins, phytochemicals, Ziziphus Mauritian

DOI:  10.61585/UCAD-IJPPNA-v3i107

Tirera et al. IJPPNA Vol.03, n°01-2025.pdf

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