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. Author manuscript; available in PMC: 2021 Apr 1.
Published in final edited form as: J Agric Food Chem. 2020 Mar 19;68(13):3995–4004. doi: 10.1021/acs.jafc.9b07965

Table 1.

Effective concentrations of various antioxidants

Free radical1 Measure Antrodin C Vitamin C BHA2 Vitamin E Glutathione
ABTS• TEAC3 0.2929 ± 0.0183 0.9834 ± 0.0636 3.5688 ± 0.1690 0.9864 ± 0.0453 1.3169 ± 0.0185
OH• EC505 0.7925 ± 0.0189 0.3729 ± 0.0158 ND4 0.7973 ± 0.0013 0.7002 ± 0.0211
DPPH• EC50 0.0015 ± 0.00004 0.0006 ± 0.00009 0.0034 ± 0.0001 0.0039 ± 0.0002 0.0002 ± 0.00003
1

ABTS•, 2,2’-azinobis-3-ethylbenzothiazoline-6-sulfonate radical; OH•, hydroxyl radical; DPPH•, 2,2-diphenyl-1-picrylhydrazyl radical

2

BHA, Butylated hydroxyanisole

3

TEAC, Trolox-equivalent antioxidant capacity [mM]

4

ND, Not determined.

5

EC50, 50% effective concentration [mg/mL]