Humid tropical root crop cassava can be grown in low nutrient soils and drought conditions. For the millions of people in tropics, cassava is one of the most important metabolic sources of calories and it is the third most grown plant in the sub-tropical and tropical areas of Africa1. The root which consists with outer phelloderm (peel), parenchyma (starchy bulk of the root) and central vascular core is the main commercial product of cassava2.
In 1988 the Department of Agriculture in Sri Lanka released its first cassava cultivar, CARI-555, which is with very high farmer acceptance due to desirable characters like good plant type, high yield potential and good culinary qualities. So a new study was conducted to analyze the proximate composition (moisture, ash, total fat, crude fiber, crude protein and carbohydrate) in the peel and the flesh of cassava cultivar “CARI-555” in order to increase its use as food and the industrial utilization of selected cassava cultivar3.
The proximate compositions of moisture, ash, crude protein, crude fiber and carbohydrate content of cassava variety CARI-555, showed significant difference between the flesh and the phelloderm (peel). But there was no significant difference exists in between the fat content of the root flesh and the peel. The root flesh contain significantly high amount of carbohydrate than the peel where the peel contain significantly high amount of moisture, ash, crude protein and crude fiber than the root flesh.
The results presented that the moisture content of the flesh of CARI-555 showed strong significant negative relationships with ash content and the fat content of the flesh. The fat content in the flesh was correlated positively and significantly with the fat content of peel.
It was thus concluded that the root flesh contain significantly high amount of carbohydrates than the peel where the peel contain significantly high amount of moisture, ash, crude protein and crude fiber than the root flesh. A negative correlation significantly existed between the moisture, fat and ash content of flesh. The fat content of the flesh was correlated positively and significantly with the fat content of the peel.
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