1994
DOI: 10.1021/jf00042a011
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Occurrence of cis-Isomers of Provitamin A in Brazilian Fruits

Abstract: Brazil has a wide variety of tropical, subtropical, and temperate fruits with widely differing carotenoid compositions, providing a good setting for investigating the natural occurrence of cis-isomers of provitamins. Seventy-five samples were analyzed. The fruits could be classified into two main groups:(1) those having @-carotene as the principal provitamin and (2) those with @-cryptoxanthin as the major provitamin. Some fruits also had a-carotene, y-carotene, a-cryptoxanthin, and @-apo-10'-carotenal, usually… Show more

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Cited by 89 publications
(78 citation statements)
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“…12,14 The levels of total phenols of plums (Table 1) were within the range found by Gil et al, 15 whereas the total carotenoids contents were higher than those found by these authors for plum from California (United States). Furthermore, Kim et al 16 and Chun et al 17 found higher levels of total phenols in plum from New York, while the levels of flavonoids were within the range presented in this study.…”
Section: Resultssupporting
confidence: 74%
See 1 more Smart Citation
“…12,14 The levels of total phenols of plums (Table 1) were within the range found by Gil et al, 15 whereas the total carotenoids contents were higher than those found by these authors for plum from California (United States). Furthermore, Kim et al 16 and Chun et al 17 found higher levels of total phenols in plum from New York, while the levels of flavonoids were within the range presented in this study.…”
Section: Resultssupporting
confidence: 74%
“…10 De Rosso & Mercadante, 12 Godoy & Rodriguez-Amaya, 14 Gil et al, 15 Chun et al, 17 Luximon-Ramma et al, 18 Faria et al, 19 Jagadeesh et al, 20 Faria et al 21 …”
Section: Supplementary Informationmentioning
confidence: 99%
“…A extração e quantificação dos carotenoides totais foram realizadas segundo Godoy & Rodriguez--Amaya (1994). As amostras foram misturadas com celite, com a finalidade de facilitar o rompimento das estruturas celulares e liberação dos carotenoides, e, em seguida, submetidas à extração com acetona P.A.…”
Section: Methodsunclassified
“…Os coeficientes de absorção para o licopeno e a-caroteno em éter de petróleo são 3420 e 2800, respectivamente (Godoy & Rodriguez-Amaya 1994). A fórmula utilizada para o cálculo foi CT (μg g -1 ) = 10 4 .abs.vol/ 1% E 1cm .m, em que CT = carotenoides totais; Abs = absorbância no maior pico detectado; Vol = volume do balão utilizado na diluição (ml); 1% E 1cm = valores tabelados (absortividade em função do carotenoide predominante na amostra); m = massa da amostra (g).…”
Section: Methodsunclassified
“…LIMA et al (2007) afi rmaram que a polpa do pequi é rica em lipídios, com valor médio de 33,4%. Dessa polpa, obtém-se o azeite de pequi, que possui coloração vermelho-alaranjada, devido à presença de pigmentos carotenoides (GODOY et al, 1994). Os carotenoides, além de serem corantes naturais dos alimentos, parecem apresentar ação protetora contra o câncer e atuam ainda como um potente antioxidante com ação protetora contra doenças cardiovasculares.…”
Section: Introductionunclassified