Resumo
Foi determinada pela primeira vez a composição de carotenóides de nectarina (Prunus
persiea). Onze carotenóides foram identificados: 13-cis-caroteno, fral1s-caroteno, 9-cis-caroteno, trans-ç-caroteno, neo- criptoxantina, irans-criptoxantina, trans-luteína, trans-zeaxantina, trans-violaxantina, trans-mutatoxantina e trans-auroxantina. O principal carotcnóide foi a trans-B criproxantina (3,9 ± 0,7 ug/g), perfazendo 40,6% do total de carotcnóides (9,6 ± 0,7 ug/g), seguida pela trans-zeaxantina (1,6 ± 0,3 ug/g), trans-luteína (l,l ± 0,2 u/g) e trans-caroteno (1,0 ± 0,2 ug/g). O valor de vitamina A, proveniente de isômeros eis e trans da b-criptoxantina e do -caroteno foi de 54 ±
5 ERllOO g. A composição de carotenóides de nectarina mostrou-se muito semelhante a do pêssego, fato esperado já que estas frutas pertencem à mesma família.
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Copyright (c) 1998 HELENA Teixeira Godoy, DÉLIA B. Rodriguez-Amaya