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  • Title: Effect of cooking time on some nutrient and antinutrient components of bambaragroundnut seeds.
    Author: Omoikhoje SO, Aruna MB, Bamgbose AM.
    Journal: Anim Sci J; 2009 Feb; 80(1):52-6. PubMed ID: 20163468.
    Abstract:
    The proximate composition, gross energy, mineral composition, percentage sugar, oligosaccharides and antinutrient substances of bambaragroundnut seeds subjected to different cooking times were determined. The seeds were cooked for 30, 60, 90 and 120 min. Results of the proximate analysis showed that only the ether extract and ash were significantly (P < 0.05) reduced as the cooking time increased. In contrast, gross energy values significantly (P < 0.05) increased with increased cooking time. Amongst, the mineral elements assayed, calcium, magnesium and iron were significantly (P < 0.05) increased, while phosphorous, potassium, sodium and copper were reduced significantly (P > 0.05) with inreased cooking time. Percentage sucrose and glucose of bambaragroundnut seeds were significantly (P < 0.05) lowest in the raw form, but increased progressively with increased of cooking time. Raffinose and stachyose levels were reduced significantly by increased cookinf time (P < 0.05) with the least value in seeds cooked for 120 min. Trypsin inhibitor, hemagglutinin and tannin were completely eliminated in seeds cooked for 60 min or longer, but the phytin level was reduced significantly (P < 0.05) by cooking. For a significant detoxification of antinutrient substances and for optimal bioavailability of the component nutrients of bambaragroundnut seeds, an optimum cooking time of 60 min at 100 degrees C is therefore recommended.
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