Applied Biology in Saharan Areas
Volume 3, Numéro 4, Pages 42-53
2021-12-31

Classification Of Some Date Cultivars Algerian Soft Consistency According To Their Glycemic Index



Authors : Mimouni Yamina .

Abstract

Abstract-Dates are the fruits of the date palm (Phoenix dactylifera L.), they are highly appreciated by the Saharan population. They are classified as carbohydrate foods. These tend to raise blood sugar levels. The objective of this study is to classify the dates of six soft cultivars (Ghars, Itima, Bentqbala, Aliwrached, Mizit and Tinissine) the most answered in the South-East region of Algeria according to their Glycemic Index (GI) and to check their glycemic power in order to establish a good management of the consumption of these fruits. especially for diabetics and the obese. Initially a qualitative and quantitative characterization of carbohydrates realized for the cultivars studied, followed by dietary characterization (GI determination). The thin layer chromatography (TLC) shows the presence of reducing sugars in all investigated cultivars. Biochemical analysis recorded levels of total sugars varied between 65.84% ± 0.61 and 89.89% ± 0.05, reducing sugars contents fluctuate between 58.38% ± 0.03 and 75.28% ± 0.05%, that of sucrose is between 5.71% ± 0.1 and 17.66% ± 0.03. The pectins oscillate between 1.88% ± 0.21 to 4.43% ± 0.6. The GI values obtained seem low, they are equal: 31.01, 35.99, 36.50, 42.42, 49.00 and 51.80 respectively for Itima, AliWrached, Tinissine, BentQbala, Ghars and Mizit. Low GI foods do not cause a significant increase in postprandial blood sugar. We can classify the dates of six cultivars studied among low GI foods because (˂ 55). This allows us to develop adequate food management strategy for diabetics and the obese.

Keywords

Key words: Soft dates, glycemic index, classification, diabetics, Ouargla, Algeria.

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