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| Titre: | Quantitative and Qualitative Characterization of Native Date Fruits (Phoenix dactylifera L.) cv. ‘Mejhoul’ Related to their Geographical Origins in the Moroccan Oases |
| Auteur(s): | Hakim Outghouliast
Zerhoune Messaoudi
Amina Ouazzani Touhami
Lhoussain Ait Haddou |
| Date de publication: | 2019 |
| Référence bibliographique: | European Journal of Scientific Research, Vol. 152 (1), p. 35-47 |
| Résumé: | Date palm fruit is well known as a staple human food in many countries with arid
and semi-arid climates, notably Morocco. The dates of Mejhoul variety, renowned for the
excellence of its market value, were the subject of this study.
Samples harvested at the Tmar stage, from 8 different sites in the Moroccan oases
were examined in order to study the variability of date quality as a function of agro climatic
conditions, in term of main pomological and physicochemical characterization. On the
pomological level, the maximum length of the dates is of the order of 4.69±1.11 cm
recorded for the Aoufouss oases while the minimum length is 3.85±0.63 cm obtained for
the Tinjdad site. The width oscillates between a maximum of 2.67±0.57 cm recorded for
the Zagora dates and a minimum of 2.24±0.34 cm obtained for the Mâadid dates.
Moreover, the maximum weight of dates is of the order of 22.79±0.57 g for the Ziz oases,
whereas the minimum weight (12.41±0.43 g) is measured for Tinjdad site. Dates harvested
from Ziz oasis are the wettest (40.73%) while those of Aoufouss are the least humid
(26.83%). The total mineral matter in the dates is not affected by the sampling site. The
obtained values of dietary fiber ranged from 4.76 to 7.22 % NDF/100 g dry matter for date
from Ouarzazate and Ziz, respectively. Quantitative and Qualitative Characterization of Native Date Fruits (Phoenix dactylifera L.)
cv. ‘Mejhoul’ Related to their Geographical Origins in the Moroccan Oases High Performance Liquid Chromatography (HPLC) was used with REZEX RHM
monosaccharide H+ column and Refractometer as detector. Standard sugars (Glucose,
fructose, sucrose and maltose) were spotted using dionized water as solvent. Sugars content
was mainly dominated by glucose and fructose, but sucrose and maltose were not detected.
Glucose content is higher than that of fructose in the dates of all the geographical origins
studied. Ouarzazate dates are the richest in glucose (38.07 g/100 g dry matter), Zagora
dates are rich in fructose 36.54 g/ 100 g dry matter, while those of Tinjdad are the least rich
in both sugars (glucose: 29.89 g/100 g dry matter and fructose: 26.97 g/ 100 g dry matter).
These results can be confirmed the influence of different environmental place, type of the soil
and agricultural practices on the contents of these elements in the Moroccan Mejhoul dates. |
| Licence: | http://andzoa.ma/fr |
| URI/URL: | http://localhost:8080/dspace/handle/0/3586 |
| ISSN: | 1450-216X / 1450-202X |
| Collection(s) : | Fonds Documentaire
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