Composition minérale et vitaminique des fruits de cinq espèces sous exploitées en Algérie :Celtis australisL., Crataegus azarolus L., Crataegus monogynaJacq., Elaeagnus angustifoliaL.etZizyphus lotusL.

Abstract

Mineral and vitamin composition of fruits of five underexploited species in Algeria: Celtis australis L., Crataegus azarolus L., Crataegus monogyna Jacq., Elaeagnus angustifolia L. and Zizyphus lotus L. Abstract-Introduction. Celtis australis L., Crataegus azarolus L., Crataegus monogyna Jacq., Angustifolia elaeagnus L. and Zizyphus lotus L. are unconventional fruit trees and shrubs, which are very common in Africa, especially in Algeria. Their fruits are traditionally used as sources of vitamins and minerals that could constitute a significant raw material for food. They are eaten fresh or dried. The aim of our work was to determine the vitamin and mineral composition of these fruits. Materials and methods. Our study focused on a comparison of these fruits for their biometric characteristics, and content of vitamin compounds and mineral elements in their edible portion. Results and discussion. The pulp of the five fruits studied proved to be richer in vitamins (tocopherol, carotene, vitamin C, thiamine B1) and minerals (calcium, magnesium, potassium, iron, manganese) than some more widely-consumed fruits. The content of some trace elements (zinc, copper) did not exceed toxicity thresholds, indicating that consumption of these fruits was not detrimental to public health. Conclusion. The fruits analysed may be a source of significant nutritional contribution and may be used in various fields: food, cosmetics, pharmaceutical and others. Algeria / Celtis australis L. / Crataegus azarolus L. / Crataegus monogyna Jacq. / Elaeagnus angustifolia L. / Zizyphus lotus L. / fruits / mineral content / vitamin content / toxicity Composition minérale et vitaminique des fruits de cinq espèces sousexploitées en Algérie : Celtis australis L., Crataegus azarolus L., Crataegus monogyna Jacq., Elaeagnus angustifolia L. et Zizyphus lotus L. Résumé-Introduction. Celtis australis L., Crataegus azarolus L., Crataegus monogyna Jacq., Elaeagnus angustifolia L. et Zizyphus lotus L. sont des arbres et arbustes fruitiers non conventionnels, très communs en Afrique et surtout en Algérie. Leurs fruits traditionnellement exploités sont sources de minéraux et vitamines qui pourraient constituer une matière première non négligeable pour l'alimentation. Ils sont consommés frais ou secs. L'objectif de notre travail a été de déterminer la composition minérale et vitaminique de ces fruits. Matériel et méthodes. Notre étude a porté sur une comparaison de ces fruits quant à leurs caractéristiques biométriques et à la teneur de leur portion comestible en composés vitaminiques et éléments minéraux. Résultats et discussion. La pulpe des cinq fruits étudiés s'est révélée plus riche en vitamines (tocophérol, carotène, vitamine C, thiamine B 1) et en minéraux (calcium, magnésium, potassium, fer, manganèse) que certains fruits plus largement consommés. La teneur de quelques oligo-éléments (zinc, cuivre) n'a pas dépassé le seuil de toxicité, indiquant que la consommation de ces fruits n'était pas préjudiciable à la santé publique. Conclusion. Les fruits analys...

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Potential Benefits of Jujube (Zizyphus Lotus L.) Bioactive Compounds for Nutrition and Health

“…The mineral analysis of Z. lotus fruit showed that calcium, magnesium, and potassium were the predominance compounds with 490.84, 397.91, and 134.99 mg/100 g, respectively, [55] (Table 6). Similar amounts for magnesium and calcium were found in Z. lotus pulp [19], while higher contents of these three minerals are present in Z. lotus seeds, with amounts ranging from 92.41 to 1349.06 mg/100 g [11, 19].…”