Effect of Cooking and Roasting on Nutritional and Anti-Nutritional Factors in Kenaf (Hibiscus Cannabinus L.) Seed Meal.

K.D. Olawepo, O.T. Banjo, W.A. Jimoh, W.O. Fawole, O. Orisasona, A.H. Ojo-Daniel


The effect of cooking and roasting on levels of nutrients and anti-nutritional factors in Kenaf (Hibiscus cannabinus) seed meal was investigated. Significant (p < 0.05) variation existed in the nutrient levels among the raw, cooked and roasted kenaf seed meal. Roasting resulted in a significant (p < 0.05) increase in crude protein and mineral composition. The processing methods had no significant (p > 0.05) effect on the phytic acid but significantly (p < 0.05) reduced the tannin content of the kenaf seed meal. While cooking significantly (p < 0.05) reduced the trypsin inhibitors, roasting did not significantly (p > 0.05) alter the trypsin inhibitory activities in Kenaf seed meal  when compared with the unprocessed kenaf seed meal.

Key words: Hibiscus cannabinus; Kenaf seed meal; Cooking; Roasting; Nutrient; Anti-nutritional factors

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ISSN (Paper)2224-6088 ISSN (Online)2225-0557

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