TY - JOUR
T1 - Isoflavones and antioxidant capacity of Peruvian and Brazilian lupin cultivars
AU - Ranilla, Lena Gálvez
AU - Genovese, Maria Inés
AU - Lajolo, Franco Maria
N1 - Funding Information:
We are grateful to Ademir Calegari from the Agronomic Institute of Parana (Brazil) for providing the Brazilian lupin cultivars and to Amelia Huaringa from the Legume and Cereal Program of Agraria University (Lima-Peru) for the supply of the Andean lupin cultivars. This research was supported by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).
PY - 2009/8
Y1 - 2009/8
N2 - Seed coats, cotyledons and hypocotyls from six Peruvian (Lupinus mutabilis Sweet) and two Brazilian (Lupinus albus and Lupinus angustifolius) lupin cultivars were assessed regarding their content of isoflavones and antioxidant capacity. Genistein and a genistein derivative were detected in seed coats and cotyledons from Peruvian cultivars. Total isoflavones ranged from 9.8 to 87, 16.1 to 30.8 and 1.3 to 6.1 mg/100 g of sample in fresh weight (expressed as genistein) in seed coat, cotyledon and hypocotyl fractions, respectively, from mutabilis species, whereas no isoflavones were detected in L. angustifolius and L. albus. A significant correlation (r = 0.99) was found between the total isoflavone levels and the antioxidant capacity measured by the 2,2-diphenyl-1-picrylhydrazyl radical-scavenging method in all fractions of Peruvian samples. No condensed tannins were detected in any of the lupin cultivars. The H-6 Andean cultivar is promising for its high isoflavone content and antioxidant capacity. Insights from this study indicate that lupin cultivars of the mutabilis species have similar isoflavone profiles and that isoflavones are more concentrated in the cotyledon seed fraction than in the seed coat or hypocotyl fractions.
AB - Seed coats, cotyledons and hypocotyls from six Peruvian (Lupinus mutabilis Sweet) and two Brazilian (Lupinus albus and Lupinus angustifolius) lupin cultivars were assessed regarding their content of isoflavones and antioxidant capacity. Genistein and a genistein derivative were detected in seed coats and cotyledons from Peruvian cultivars. Total isoflavones ranged from 9.8 to 87, 16.1 to 30.8 and 1.3 to 6.1 mg/100 g of sample in fresh weight (expressed as genistein) in seed coat, cotyledon and hypocotyl fractions, respectively, from mutabilis species, whereas no isoflavones were detected in L. angustifolius and L. albus. A significant correlation (r = 0.99) was found between the total isoflavone levels and the antioxidant capacity measured by the 2,2-diphenyl-1-picrylhydrazyl radical-scavenging method in all fractions of Peruvian samples. No condensed tannins were detected in any of the lupin cultivars. The H-6 Andean cultivar is promising for its high isoflavone content and antioxidant capacity. Insights from this study indicate that lupin cultivars of the mutabilis species have similar isoflavone profiles and that isoflavones are more concentrated in the cotyledon seed fraction than in the seed coat or hypocotyl fractions.
KW - Antioxidant capacity
KW - Brazilian and Peruvian lupin cultivars
KW - Food composition
KW - Isoflavones
KW - Lupinus albus
KW - Lupinus angustifolius
KW - Lupinus mutabilis Sweet
UR - http://www.scopus.com/inward/record.url?scp=69549113410&partnerID=8YFLogxK
U2 - 10.1016/j.jfca.2008.06.011
DO - 10.1016/j.jfca.2008.06.011
M3 - Article
AN - SCOPUS:69549113410
SN - 0889-1575
VL - 22
SP - 397
EP - 404
JO - Journal of Food Composition and Analysis
JF - Journal of Food Composition and Analysis
IS - 5
ER -