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Total flavonoid content and ferric-reducing antioxidant power (FRAP) antioxidant activity of blueberry (a,c), and chokeberry (b,d) extracts according to the extraction time and temperature in subcritical-water extraction (SWE) (n = 3). TE (trolox equivalent), FW (fresh weight), CE (catechin equivalent). Means in bars with same letters are not significantly different according to Duncan’s test at p < 0.05.
