Antioxidant activity of SPF as affected by simulated gastrointestinal pHconditions. Results obtained from means of three determinations ± standard deviation.
Trolox was used as a standard in DPPH· scavenging activity, ABTS·+ scavenging activity,
FRAP and beta-carotene bleaching (BCB) assays. The standard for iron chelating activity
assays was ethylenediaminetetra acetic acid (EDTA).