Authors : O. Omolara Oluwaniyi , A. Samuel Ibiyemi and A. Lamidi Usman
Abstract: The aim of this research was to investigate suitable detoxification method(s) for thevetia seed meal. This should lead to the production of a meal with significantly reduced cardiac glycoside content with minimal loss of nutrient. Acid hydrolysis of the defatted meal followed by alcoholic extraction of the freed aglycones with 80% aqueous alcohol gave a detoxified meal with 95% reduction in the toxic glycoside content (from 42.7 g kg-1 to 2.15 g kg-1) and a 3.9% increase in crude protein (from 42.79 to 44.45%) but with a 48% loss of meal (100 g defatted meal giving 52 g detoxified meal), while direct alcoholic extraction of the glycoside led to a 98% reduction in the glycoside content (from 42.7 g kg-1 to 0.83 g kg-1); a 25.3% increase in crude protein content (from 42.79 to 53.6%) and an 18% loss of material (with 100 g defatted meal giving 82 g detoxified meal). The results showed that alcoholic treatment is more effective for reducing the toxin content of thevetia meal with minimal loss of material and nutrient than acid hydrolysis.
O. Omolara Oluwaniyi , A. Samuel Ibiyemi and A. Lamidi Usman , 2007. Effect of Detoxification on the Nutrient Content of Thevetia peruviana Seed Cake. Research Journal of Applied Sciences, 2: 188-191.