In order to do a best stipulation on her consumption, it is necessary to know if a food provoke faintly, fairly or highly the glyceamia. The aim of this work was to evaluate the glycemic index of coconut water sugar from three coconuts varieties. So, with a cohort of 15 people, a capillary blood was collect after sugar ingestion and the glycaemia read directly on a glucometer. The result showed that the brown and white sugar from coconut sugar can be classified as low glycemic index food. Also, the glycemic indexes of white coconut water sugar are 2 to 3 more lower than that the brown sugar. The glycemic indexes of sugars vary according to the variety of coconut used. The sugars of the coconut palm (MYD) are more hyperglycemic than those of the hybrid (PB121 + ) which is more hyperglycemic than the sugars of the coconut palm (WAT). Thus, with a controlled consumption, the coconut water sugars could be the sugars that are best for the health of the healthy and diabetic populations because it raises slightly the postprandial glucose.
L'hybride F1 NJM x GVT est un cocotier créé pour lutter contre la maladie du jaunissement mortel du cocotier. Cet hybride a été montré tolérant à la maladie du jaunissement mortel du Ghana. Cependant, planté dans les conditions agro-climatiques de la Côte d'Ivoire, il a été peu étudié au plan biochimique. L'objectif de cette étude est donc d'évaluer les caractéristiques physico-chimiques de l'eau des noix immatures de cocotier issues des descendances d2, d3, d6, d7, d11 et d15 de l’hybride F1 NJM x GVT. Ainsi, ont été déterminés, la masse de l’eau des noix et ses teneurs en matière sèche, cendres, degré Brix, sucres totaux, sucres réducteurs, protéines et composés phénoliques à l’aide de méthodes standards. Les résultats obtenus montrent que les masses de l’eau et le degré Brix ont des valeurs plus importantes pour les descendance d2, d6 et d7. Quant aux eaux des descendances d3, d11 et d15, elles présentent des taux élevés de sucres totaux et de composés phénoliques. Cette hétérogénéité des paramètres physico-chimique de l’eau, offre un large éventail de choix de transformation au plan industriel (boisson, sirop, etc.). Mots clés : eau de coco, descendances, hybride NJM x GVT, caractéristiques physico-chimiques, jaunissement mortel, Côte d’Ivoire. The F1 NJM x GVT hybrid is a coconut palm tree created to lethal yellowing disease. This hybrid has been shown to be tolerant of lethal yellowing disease of Ghana. However, planted under the agro-climatic conditions of the Ivory Coast, it has been little biochemical studied. The present study aims to characterize nutritive composites of immature coconut water from progeny d2, d3, d6, d7, d11 and d15 of F1 NJM x GVT hybrid. Thus, the contents of dry matter, ash, Brix degree, total sugars, reducing sugars, proteins, phenolic compounds and coconut water weight, were determined by standard analysis methods. The results obtained show higher values of coconut water weight and Brix degree in the group of progeny d2, d6 and d7. As for progeny d3, d11 and d15 the have high levels of total sugars and phenolic compounds. This heterogeneity of the nutritive parameters, offers a lot off choices in coconut transformation (drink, syrup, etc.).
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