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Table 1 The percentage yields and IC30 values of free radical scavenging activities of STF extracts, its components and active compounds were obtained from DPPH assay and represented as Mean ± SEM. in triplicate experiments. IC30 values indicated concentrations of the test compounds required to scavenge DPPH radical by 30%

From: IL-1β-induced modulation of gene expression profile in human dermal fibroblasts: the effects of Thai herbal Sahatsatara formula, piperine and gallic acid possessing antioxidant properties

No. Material name Part of usage Percentage of components in formula (W/W)a % yields (W/W)a DPPH assay IC30 value (μg/mL)
1 L-ascorbic acid - - - 3.32 ± 0.22
2 Piperine - - - >120
3 Gallic acid - - - 8.04 ± 0.94
4 STF formula - - 19.78 19.62 ± 1.13
5 1,7, 7 – trimethylbicyclo (2.2.1) heptan −2- one (analytical camphor) crystal 1.40 - >120
6 Acorus calamus L. root 8.80 1.73 >120
7 Anethum graveolens L. seed 1.00 2.82 >120
8 Atractylodes lancea (Thunb.) DC. root 0.50 6.83 >120
9 Baliospermum solanifolium (Burm.) Suresh root 8.00 0.74 90.86 ± 16.96
10 Clausena excavate Burm.f. stem 4.80 2.30 98.47 ± 4.81
11 Cuminium cyminum L. seed 0.80 6.26 75.67 ± 11.63
12 Ferula assa-foetida Regel gum 1.00 27.89 >120
13 Lepidium sativum L. seed 1.10 7.83 49.43 ± 5.42
14 Merremia vitifolia (Burm.f.) Hallier.f. stem 0.80 1.49 25.17 ± 2.34
15 Myristica fragrans Houtt. fruit 1.30 1.01 19.99 ± 1.17
16 Myristica fragrans Houtt. mace 1.20 2.02 31.35 ± 3.13
17 Nigella sativa L. seed 0.70 9.21 >120
18 Pistacia chinensis subsp. integerrima (J. L. Stewart ex Brandis) Rech. f. Lagasca. root 0.60 11.09 65.57 ± 8.81
19 Picrorhiza kurroa Royle ex Benth. root 0.40 7.70 84.96 ± 1.18
20 Pimpinella anisum L. seed 0.90 5.40 78.54 ± 7.47
21 Piper nigrum L. fruit 24.00 0.03 >120
22 Piper retrofractum Vahl. fruit 9.60 6.03 >120
23 Plumbago indica L. root 22.40 2.30 72.88 ± 6.84
24 Terminalia chebula Retz. fruit 10.40 28.29 5.14 ± 0.52
25 Terminalia chebula Retz. gall 0.30 8.83 2.35 ± 0.18
  1. a(W/W) = gram unit