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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
DPPH radical (A), hydroxyl radical (B), and superoxide anion radical (C) scavenging activities of six isolated APs (P1 to P6) from the hydrolysate of skipjack tuna (K. pelamis) heads. The data are presented as the mean ± SD (n = 3).