Table 2.

Tyrosinase inhibition and DPPH radical scavenging (expressed as IC₅₀, mg/L) of the 50% ethanolic extract of C. aurantium flowers fermented by various lactic acid bacteria or fungi.

	B. bifidum	B. lactis	L. acidophilus	L. brevis	A. oryzae	A. niger
Tyrosinase inhibition	120.8 ± 5.2c	202.3 ± 8.8d	48.2 ± 2.3b	38.2 ± 0.9a	536.3 ± 7.1e	581.2 ± 4.6f
DPPH scavenging activity	96.2 ± 3.8c	275.8 ± 10.3d	36.1 ± 1.2b	18.6 ± 0.6a	418.2 ± 6.5e	462.3 ± 7.6f

In each row, letters (a–f) indicate P < 0.01.