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2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) radical scavenging activities of tofu incorporated with different levels of licorice powder (LP). Means within the same activity without a common letter (a–d) are significantly different (P<0.05).
