European Food Research and Technology, cilt.236, sa.3, ss.523-530, 2013 (SCI-Expanded)
Widely consumed legumes including chickpeas, red kidney beans, haricot beans, yellow lentils, red lentils and green lentils were analysed to determine the content of non-isoflavone phytoestrogenic compounds such as quercetin, rutin, apigenin, coumestrol and lignan (matairesinol and secoisolariciresinol). Methanolic extracts obtained by ultrasound-assisted extraction were analysed by the triple quadrupole LC-MS/MS. Red kidney beans were the best source of quercetin (603. 2 ± 307. 2 μg/kg) and rutin (73. 4 ± 14. 0 μg/kg). Apigenin and secoisolariciresinol contents were the highest in yellow lentils (18. 5 ± 0. 84 μg/kg) and haricot beans (451. 9 ± 192. 2 μg/kg), respectively. Coumestrol contents of haricot beans (18. 5 ± 1. 45 μg/kg) and red kidney beans (18. 5 ± 1. 26 μg/kg) were equal to each other, and these were determined as the highest coumestrol content values. The best sources of matairesinol occurred in green lentils (28. 2 ± 0. 18 μg/kg) and chickpeas (27. 7 ± 1. 83 μg/kg). Differences between contents of each sample of the same legume were significant and remarkable, especially for quercetin and secoisolariciresinol. © 2013 Springer-Verlag Berlin Heidelberg.