The antioxidant ability of those compounds showing significant correlations with the antioxidant capacity of cider was measured, on the same mM basis using standard solutions (0.5 mM) (Table 2). As shown in Table 2, for the DPPH assay the order for antioxidant activity was procyanidin B2 > epicatechin > hydrocaffeic acid > catechin > quercitrin > caffeic chlorogenic acids, which agrees with previous reports (Chinnici et al., 2004; Tsao et al., 2005; Saint- Cricq de Gaulejac et al., 1999a). In the case of the FRAP assay, thenorder was procyanidin B2 > hydrocaffeic acid > chlorogenchlorogenic caffeic acids > quercitrin > epicatechin catechin. In general, all the compounds tested increased their antioxidant capacity at 40 min, the hydrocaffeic acid being the less sensitive to reaction time. No activities were observed for p-coumaric, hydrocoumaric acids and phloridzin.
The antioxidant ability of those compounds showing significant correlations with the antioxidant capacity of cider was measured, on the same mM basis using standard solutions (0.5 mM) (Table 2). As shown in Table 2, for the DPPH assay the order for antioxidant activity was procyanidin B2 > epicatechin > hydrocaffeic acid > catechin > quercitrin > caffeic chlorogenic acids, which agrees with previous reports (Chinnici et al., 2004; Tsao et al., 2005; Saint- Cricq de Gaulejac et al., 1999a). In the case of the FRAP assay, thenorder was procyanidin B2 > hydrocaffeic acid > chlorogenchlorogenic caffeic acids > quercitrin > epicatechin catechin. In general, all the compounds tested increased their antioxidant capacity at 40 min, the hydrocaffeic acid being the less sensitive to reaction time. No activities were observed for p-coumaric, hydrocoumaric acids and phloridzin.
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