It also contains vitamins, especially thiamine. Cashew nut proteins are complete, having all the essential amino acids and a kilogramme of the nut yields about 6000 calories compared to 3600 calories from cereals, 1800 calories from meat and 650 calories from fresh citrus fruit.
Chilli pepper (Capsicum spp.) is one of the most important vegetables in the world. It has a rapidly growing period of 90 to 150 days while some species like the Capsicum annum (bell pepper) are true perennials.
Chilli originated from the Americas with their cultivars now grown around the world because they are widely used as food and medicine.
Cocoa flourishes in areas that are not more than 20 degrees north or south of the equator. The trees respond well in regions with high temperature and distributed rainfall. In Nigeria, the cocoa tree is grown from seedlings which are raised in nurseries, when the seedlings reach a height of 3 cm they are transplanted at a distance of 3 to 4 meters. The cultivation of cocoa is done by many small-scale farmers on farmlands of around 2 hectares while export is dominated by a few firms.
Maize can be processed into different products for various end uses at the traditional level and on an industrial scale. While a large proportion of products utilized in developing countries are obtained via traditional processing, industrial processing meets the bulk of the demand in developed countries.