ABSTRACT
ABSTRACT Beauregard sweet potato is an orange color crop rich in β-carotene, a precursor of vitamin A. β-carotene improve immunity and decrease of incidence of degenerative diseases. The objective of this work was to introduce sweet potato in the diet through of some food products, such as bread, cake and sweets. The effect of processing on the chemical composition, as well as the quantification of phenols and total carotenoids, antioxidant activity, and sensory acceptability were evaluated. Cakes and coconut sweets presented higher levels of carotenoids. Higher phenolic and antioxidant activity were verified in cocoa sweets. All foods had good acceptability: 86% for bread, 83.3% for cake and 84,4%, and 86% for coconut and cocoa sweets, respectively. Servings of 95g of roasted sweet potato, 330g of bread, 182g of cake, 187g of coconut sweet and 391g end of cocoa sweet, would provide the recommended daily intake of vitamin A for children 10 years and older. It was concluded that the elaboration of foods containing sweet potato is a viable alternative to inserting biofortified foods into the human diet.
RESUMEN Los camote Beauregard son genotipos de color naranja, ricos en β-caroteno, precursores de la vitamina A. El β-caroteno ayuda a mejorar la inmunidad y reducir el riesgo de enfermedades degenerativas. El objetivo del trabajo fue introducir el camote en la dieta a través del pan, pasteles y dulces tipo postre. Se evaluó el efecto del procesamiento sobre la composición química, así como la cuantificación de fenoles y carotenoides totales, actividad antioxidante y aceptabilidad sensorial. Las tortas y caramelos de coco mostraron mayores niveles de carotenoides y cacao, mayor actividad fenólica y antioxidante. Se confirmó una buena aceptabilidad, en la cual el pan presentó 86%, el torta 83,3%, y los dulces tipo postre de coco y de cacao 84,4% y 86% respectivamente. Las porciones de 95 g de batatas al horno, 330 g de pan, 182 g de torta, 187 g y 391 g de dulce de coco y dulce de cacao respectivamente, proporcionarían la ingesta diaria recomendada de vitamina A para niños de 10 años en adelante. Se concluyó que la preparación de alimentos que contienen batatas es una alternativa viable a la inclusión de alimentos biofortificados en la dieta humana.
ABSTRACT
Dentre as espécies cultivadas no semiárido baiano, as abóboras são uma excelente alternativa de produção. Nessa região onde são encontrados os mais baixos Índices de Desenvolvimento Humano (IDH) do Brasil e populações com alta incidência de hipovitaminose A, materiais promissores de abóboras, fontes de carotenoides, podem ser inseridos no agronegócio irrigado. O objetivo do trabalho foi identificar acessos de abóboras do Banco Ativo de Germoplasma (BAG) de Cucurbitáceas da Embrapa Semiárido com altos teores de carotenoides totais e vitamina A. Os teores de carotenoides totais (CT), expressos em termos de β-caroteno, variaram de 14,93µg g-1 (A4) até 290,62µg g-1 (A43) entre os diferentes acessos (A). Dos carotenoides encontrados nos acessos com maiores teores de CT, 60-70% foram quantificados como α- e β-caroteno, representando um valor total de vitamina A de 1.182,39 gRAE 100g-1 (A40) e 1.828,84 gRAE 100g-1 (A43). Esses resultados demonstram que os 48 acessos de abóboras do BAG estudados apresentam grande variação quanto ao teor de carotenoides totais, e os selecionados representam alta fonte de vitamina A.
Among the species of short cycle crops, with great potential to be increased within the agribusiness of the Semi-Arid Bahia, the pumpkins are an excellent alternative for production. In this region where are found the lowest HDI of Brazil, and populations with high incidence of hypovitaminosis A, promising materials of pumpkins with high amounts of carotenoids have a chance to be good accepted and inserted into the irrigated agribusiness. The aim of this research was to identify accessions of pumpkins from the Active Germplasm Bank (BAG) of Cucurbitáceas from Embrapa Semi-arid with high amounts of total carotenoids and vitamin A. The amount of total carotenoids found by UV-vis spectrophotometry (445nm) in different accessions (A) ranged from 14.93mg g-1 (A4) to 290.62mg g-1 (A43), with average value of 366.60 31.21µg g-1. In the access with higher amounts of total carotenoids a percentage between 60-70 % were quantified as α- and β-carotene showing a total value of vitamin A of 1,182.39 gRAE 100g-1 (A40) and 1,828.84 gRAE 100g-1 (A43). These results demonstrate that the 48 accessions of pumpkins BAG studied show a big variation in the content of total carotenoids, and may represent some high source of vitamin A, which really increase the importance of identifying genotypes for production in large scale of lines segregant of vitamin A.