. 2016 Aug 5;21(8):1024. doi: 10.3390/molecules21081024

Table 4.

IC₅₀ value for the DPPH radical-scavenging ability and β-carotene bleaching inhibition about the essential oils of B. balsamifera in different months.

No.	Month	IC₅₀ Value
No.	Month	DPPH	BCB
1	September	9.13 ± 7.31 ^a	1.98 ± 0.44 ^a
2	October	7.22 ± 6.04 ^b	2.22 ± 0.63 ^b
3	November	7.46 ± 2.53 ^b	2.43 ± 0.69 ^c
4	December	4.83 ± 2.99 ^c	2.07 ± 0.36 ^a

BCB: β-carotene bleaching; DPPH: 2,2-Diphenyl-1-picrylhydrazyl; IC₅₀: half maximal inhibitory concentration. The values are expressed as mean ± standard deviation. DPPH: n = 15 in No. 1; n = 12 in No. 2–4; BCB: n = 10. ^a–c mean the values in the same column with the same letter are not significantly different at p < 0.05.