Table 1.
Chemical data on flavones and flavonols, flavanones, and dihydroflavonols, the inhibiting activity of the ABTS (2.2-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) radical and the antioxidant activity on linoleic acid oxidation.
| Chemical Data Obtained by Spectrophotometry | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Countries | Spain | Chile | |||||||
| Regions/n° of Samples | Galicia/14 | Castilla y León/33 | Bio-Bio/52 | ||||||
| Constituents | Min–Max | Mean | SD | Min–Max | Mean | SD | Min–Max | Mean | SD |
| Total flavones + flavonols (mg quercetin/g propolis) | 28.2–149.6 | 61.5 | 36.3 | 19.9–190.3 | 88.5 | 38.9 | 0–161.1 | 57.3 | 35.6 |
| Total flavones + flavonols (mg rutin/g propolis) | 10.4–58.7 | 25.8 | 13.7 | 10.1–74.3 | 35.9 | 14.6 | 0–63.3 | 24.1 | 13.6 |
| Total flavanones + dihydroflavonols (mg pinocembrin/g propolisextract) | 31.8–73.9 | 49.4 | 9.6 | 31.7–81.6 | 56.7 | 15.3 | 27.0–149.7 | 75.8 | 34.3 |
| ABTS (nmolTrolox/mg propolis) | 1552.1–2012.6 | 1777.1 | 195.1 | 1197.7–2649.3 | 1907.7 | 384.2 | 641.2–8215.4 | 3863.5 | 1911.2 |
| Linoleic acid/β-carotene (% inhibition) | 72.7–83.3 | 78.0 | 3.7 | 21.6–82.2 | 56.5 | 21.1 | 54.7–88.1 | 70.0 | 7.1 |