“…Still, in comparison with published results for Butterhead lettuce, our control group presented slightly higher lutein amounts (Table 1) than those reported by Kimura and Rodriguez-Amaya (2003) (2.14 ± 0.14 mg 100 g À1 , FW) and Mou (2005) (0.54-2.54 mg 100 g À1 , FW). As regards to b-carotene's content (Table 1), Cardoso, Lucia, Stringheta, Chaves, & Pinheiro-Sant'Ana, 2009 reported similar values, ranging from 2.10 to 3.58 mg 100 g À1 , FW. The amounts of minor carotenoids (Table 1) found in the present work are within the same range as those found in previous studies (Baslam, Moralesa, Garmendia, & Goicoechea, 2013;Kimura & Rodriguez-Amaya, 2003) as well as individual and total chlorophylls (Table 1) (Agüero, Barg, Yommi, Camelo, & Roura, 2008;Mou, 2005).…”