Valor protÃico e implicaÃÃes nutricionais da lectina de sementes de Cratylia mollis quando presente na dieta

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

Camaratu bean (Cratylia mollis ), a native plant from the Semi-Arid Region of Pernambuco, Brazil, is considered an excellent forage resource, and an alternative to obtain lectins. In this work the protein pattern and nutritional implications of C. mollis lectin was evaluated for a better characterization of the camaratu bean as a nutritional source. Diets with "egg-whiteâ(Ew, positive control), raw (RCm) and cooked (CCm) C. mollis seed meals or supplemented (SRCm and SCCm) with Lmethionine and L-tryptophan, as well as a diet containing purified C. mollis lectin (Cra) and a diet without protein (NPC), for 10 days as a period, for Wistar male rats weaned at 21 days of age. The main organs were dissected, weighted, and lyophilized to obtain the dry weight; carcasses were, also, dried. Dry weights were recorded before incorporating the organs with their original carcasses which were then grounded. The animals fed with RCm, SRCm and CCm showed low values of growth, similar to NPC group; SCCm group revealed a less significant reduction of development. The nutritional parameters of digestibility, NPU (âNet Protein Utilizationâ) and biologic value were significantly reduced to RCm; SRCm and CCm showed low NPU and biological value but good digestibility. The SCCm group presented good values to all parameters. Animal fed with Cra diet showed a good increase in animal weight, excellent vitality and physical aspects with good digestibility, NPU and biological values similar to EW group. However, a signifiicant hypertrophy of some organs was observed when compared to of animals organs fed with EW diet. These results suggested that C. mollis seeds and Cra induced organ alterations in rats

ASSUNTO(S)

lectina bioquimica lectin camaratu bean pernambuco feijÃo camaratu sementes de c. mollis pernambuco seeds of the c.mollis

ACESSO AO ARTIGO

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