Chemical composition, digestibility and antinutritional factors content of two wild legumes: Styphonolobium burseroides and Acacia bilimekii |
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Authors: | A Sotelo P Migliaro A Toledo J Contreras |
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Institution: | (1) Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México (UNAM), México, DF, 04510, México;(2) Departamento de Biología, Universidad Autonóma de Puebla, México |
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Abstract: | The chemical composition, digestibility and toxin contents of two wild legumes: Styphnolobium burseroides and Acacia bilimekii, collected in a semi-arid zone of Mexico, were determined. Both legumes had a high fiber content. The seeds of Styphnolobium burseroides had a low protein content (14%), and the pod a high content of reducing sugars. However the seeds of Acacia bilimekii had a high protein concentration (35%). The seed proteins were low in sulphur amino acids and tryptophan in both legumes but were rich in lysine. Trypsin inhibitors and lectins were present in low concentrations; alkaloids and cyanogenic glucosides were not detected. The in vitro digestibility for monogastric animals was low but the same test with ruminal juice showed a high digestibility for both legumes. Based on their chemical composition and digestibility, these legumes could be a good alternative source in the feeding of ruminants. |
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Keywords: | Acacia bilimekii Antinutritional factors Nutritive value Styphnologium burseroides Wild legume |
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