Abstract
Analysis of mineral content and proximate composition of Arachis hypogaea seeds were carried out using standard analytical method (AOAC, 2000). Raw, boiled and fried groundnut (Arachis hypogaea) seeds were analyzed for proximate and mineral composition. The results revealed that the raw, boiled and fried seeds contained (6.70% ± 0.04, 5.63% ± 0.04 and 7.68% ± 0.05, Ash contents), (4.10% ± 0.05, 3.85% ± 0.03 and 4.37% ± 0.04, crude fibre), (20.38% ± 0.30, 23.86% ± 0.04 and 25.64%±0.05, crude protein), (39.32% ± 0.04, 32.76% ± 0.01 and 46.36% ± 0.06 crude fat), (29.86% ± 0.07, 33.92% ± 0.03 and 6.93% ± 0.04 carbohydrate) respectively. There was a significant difference between the nutritional value of the raw and heat processed samples: Boiling decreased crude fibre, ash contents, crude protein and crude fat. While carbohydrate increased with boiling when compared with the raw and fried groundnut. Minerals increased with increasing heat processing temperature. Calcium; Potassium, Magnesium, Sodium, Phosphorus, Copper, Iron and Manganese showed that (240.56 ± 0.03, 220.94 ± 0.04, and 245.85 ± 0.02-Ca), (166.25 ± 0.05, 152.03 ± 0.06 and 218.08 ± 0.50-K), (40.36 ± 0.02, 44.18± 0.02 and 46.04 ± 0.04-Mg), (352.64 ± 0.04, 396.12±0.03 and 402.63 ± 0.03-Na), (28.10 ± 0.05, 35.25±0.01 and 40.57 ± 0.02-P), (2.49 ± 0.02, 2.66 ± 0.04 and 2.74 ± 0.05-Cu), (14.82 ± 0.05, 13.10 ± 0.02 and 25.51 ± 0.04-Fe), (4.07±0.03, 3.78±0.04, and 3.44±0.02-Zn) and (3.41 ± 0.02, 3.11±0.02 and 4.77 ± 0.03-Mn) respectively with the raw sample having the least value.
Highlights
Arachis hypogaea (Groundnut or peanut) is a species in the legume of family (Fabaceae) and the most important legume in Africa
The results revealed that the raw, boiled and fried seeds contained (6.70% ± 0.04, 5.63% ± 0.04 and 7.68% ± 0.05, Ash contents), (4.10% ± 0.05, 3.85% ± 0.03 and 4.37% ± 0.04, crude fibre), (20.38% ± 0.30, 23.86% ± 0.04 and 25.64%±0.05, crude protein), (39.32% ± 0.04, 32.76% ± 0.01 and 46.36% ± 0.06 crude fat), (29.86% ± 0.07, 33.92% ± 0.03 and 6.93% ± 0.04 carbohydrate) respectively
The results of the mineral elements and the proximate composition analysis of raw, boiled and fried Arachis hypogaea seeds are as shown in the Table A and B
Summary
Arachis hypogaea (Groundnut or peanut) is a species in the legume of family (Fabaceae) and the most important legume in Africa. It is an important crop of Brazilian origin, though cultivated in tropical and temperature climates [1]. Peanuts are generally rich in nutrient, providing over 30 essential nutrients and phytonutrients [4]. A new study by a group of Huntsville researchers found out that boiled peanuts bring out up to four times more chemicals that protect against disease than raw, dry or fried nut. Recent research has found antioxidants that protect cells against the risk of degenerative disease and other chemicals that may provide health benefits [4]
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