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You are required to plan a procedure that will allow you to compare quantitatively the glucose concentrations in samples of fresh orange, lemon and grapefruit.
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You are required to plan a procedure that will allow you to compare quantitatively the glucose concentrations in samples of fresh orange, lemon and grapefruit. I predict that orange juice is the most concentrated out of the three juices. Orange juice should have a higher concentration of glucose, followed by Grapefruit then lemon. I have predicted this because of a source I have obtained which showed that orange has the greatest number of grams of monosaccharide. The juice sample The amount of monosaccharide in grams (g) Orange 8.5 Grapefruit 5.3 Lemon 1.6 ("Manuel of Nutrition" by J. Mafa) If there is a greater number of monosaccharides there would be a higher concentration of glucose present. Benedict's test can prove this as the more reducing sugar present the greater the amount and the darker the colour of the precipitate. A Benedict's test is a test, which can be used to show the presence of reducing sugars. I predict that orange juice would have the...
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