2.1. Traditional fermentation of cotton seeds for Owoh production
Owoh was prepared in the traditional way using cotton seeds ( Sanni and Ogbonna, 1991). The seeds were removed from the lint and boiled in water for 2 h until they became soft. After boiling, the water was carefully discarded and the seeds soaked in cold water overnight. The seed coat was later removed manually by pressing between the fingers to obtain the cotyledons. These were then tightly wrapped with banana leaves (Musa sapientum) in different packets and boiled again for 1–2 h. The packets were removed after boiling and water was allowed to drain off completely. The packets were then placed in calabash trays and covered with jute bags. Fermentation was allowed for 3 days. The fermented mash is Owoh, a dark-brown, semi-moist solid with a pungent smell.