Fig. 2From: Chemical characterization and antioxidant potential of volatile oil from an edible seaweed Porphyra tenera (Kjellman, 1897)DPPH radical scavenging potential of a Porphyra tenera volatile oil (PTVO) and b BHT and α-tocopherol as the reference compound. Different superscripts in each column indicate significant differences in the mean at P < 0.05Back to article page