The groundnut is particularly valued for its protein content (26%). On equal weight basis (Kg for Kg), groundnuts contain more protein than meat and about two and a half times more than eggs.
Being an oil seed crop, it contains 40 to 49% oil. In addition to protein, groundnuts are a good source of calcium, phosphorus, iron, zinc and boron. The groundnuts also contains vitamin E and small amounts of vitamin B complex. High in calories, 5.6 calories nut -1 (calorific value of 567).
Food value of Groundnuts Source:
Content
Percentage
Protein
25.2
Oil
48.2
Starch
11.5
Soluble sugar
4.5
Crude Fiber
2.1
Moisture
6
Jambunathan 1991
Nutritional characteristics of groundnut kernel
Characteristics
Raw*
Roasted*
Calories(g)
564
582
Protein(g)
26
26
Fat(g)
47.5
48.7
Carbohydrate(g)
18.6
20.6
Calcium(mg)
69
72
Phosphorus(mg)
401
401
Iron(mg)
2.1
2.2
Thiamine (B1)(mg)
1.14
0.32
Riboflavine(B2)(mg)
0.13
0.13
Niacin(mg)
17.2
17.2
* Content 100-1 g; Source: Burn and Huffman, 1975
Chemical composition of groundnut shell, haulms and oil cake (in%)
Characteristics
Shell
Haulms
Oil Cake
Cellulose
65.7
22.11 to 35.35
Carbohydrates
21.2
38.06 to 46.95
22 to 30
Proteins
7.3
8.30 to 15.0
45 to 60
Minerals
4.5
1.39 to 2.88
4 to 5.7
Crude Fiber
22.11 to 35.35
3.8 to 7.5
Moisture
7.13 to 10.0
8 to 10
Source: Reddy, P.S., 1988
Submitted by msrivani on Thu, 05/02/2009 - 18:11
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