Soluble Solids Content of Different Regions of Watermelons

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Abstract
The soluble solids con -tent of the flesh of ripe watermelons (Citrullus vulgaris) was detd. by means of a hand refractometer. 23 watermelons were involved in the test and 23 areas in each fruit were sampled. The areas of highest soluble solids content were near the seed and center of the flesh. The tissue near the rind was low in soluble solids. About 85% of soluble solids consist of sugars, therefore this method has been used as a measure of quality. The juice obtained from half of each melon had 11.23%, and the juice from the 23 samples averaged 11.06% soluble solids. The watermelons are so variable in composition that there was a significant diff. between the above 2 readings. In a fruit so variable as a watermelon, the choice of one area for sampling must involve certain dangers of inaccuracy.

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