Antioxidant activity of Brazilian bean cultivars

Journal of the Brazilian Chemical Society

Claus, Thiago¹  Maruyama, Swami A.¹  Matsushita, Makoto¹  Palombini, Sylvio V.¹  Universidade Tecnológica Federal do Paraná, Londrina, Brazil¹  Universidade Estadual de Maringa, Maringa, Brazil¹  Souza, Nilson E. de¹  Gomes, Sandra Terezinha Marques¹  Montanher, Paula F.¹  Visentainer, Jesuí V.¹ 

关键词: brazilian beans;    antioxidant assays;    Quencher procedure;   

DOI  :  10.5935/0103-5053.20130100

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

This study quantified fatty acids and evaluated the proximate composition, antioxidant activity paired with Quencher procedure and total phenolic compounds in Brazilian bean cultivars. The samples showed high amounts of polyunsaturated fatty acids, such as linoleic acid (191.54 to 329.50 mg g-1 of total lipids) and α-linolenic acid (228.03 to 367.27 mg g-1 of total lipids). The obtained ratios between Omega 6 and 3 fatty acids were low, between 0.71 and 1.12. In relation to antioxidant activity assays, the cultivars showed the best results upon employing the 2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS) method (2401.34 to 4394.80 µmol Trolox equivalent g-1). The lowest results were observed in the ferric reducing antioxidant power (FRAP) assays, 530.93 to 1440.13 µmol Trolox equivalent g-1. The results from 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ABTS methods showed the greatest correlation between themselves (r = 0.619). High concentrations of total phenolic compounds were also detected in the studied cultivars, which varied from 81.85 to 173.65 mg gallic acid equivalent 100g-1.

【 授权许可】

Unknown