Glycemic Index, Chemical Composition And Acceptability Of Blends Of Pulpy Guava And Watermelon Juice

ABSTRACT

The study investigated the chemical composition, glycemic index and consumer’s acceptability of blends of pulpy guava and watermelon juice using standard methods. The results revealed that at p<0.05 the control glucose D, had its peak value of blood glucose level 120mg/dl at 60minutes, (Guava: Watermelon; 70: 30) had its peak of glucose level 80mg/dl at 120minutes, (Guava : Watermelon; 50:50) had its peak of glucose level 82mg/dl at 30minutes and (Guava : Watermelon; 30:70) had its peaks of glucose level 82mg/dl at 30, 60 and 90 minutes. The glycemic index value of (Guava: watermelon; 70:30) was least recording 19 units while the highest glycemic index (GI) was found in (Guava: watermelon; 50:50) with 26 units. Proximate analysis reveals high carbohydrate content of (6.43%) for (Guava: Watermelon; 70:30). Mineral analysis revealed that potassium (K) content of the juices was as high as 16.73mg/100g.The juices were found to be very rich in vitamin C up to (25.80%). Anti-nutrients were found in the juices when evaluated except alkaloids (Guava: watermelon; 50:50) portion was proved to be liked very much scoring above eight (8) in the hedonic scale of measurement.