Table 3.
Most mentioned plant secondary metabolites associated with antioxidant activity after bibliometric analysis in the Scopus online database (https://www.scopus.com/).
| TOPIC | Total of Documents | % of the Total |
|---|---|---|
| Antioxidants | 455,065 | 100 |
| Antioxidants/plant | 114,148 | 25.08 |
| Antioxidant category | % of the Plant Total | |
| Alkaloids | 4937 | 4.33 |
| Sulfur compounds | 1237 | 1.08 |
| Partial scores for group one | 6174 | 5.41 |
| Terpene/terpenoid | 6086 | 5.34 |
| Essential oil | 5931 | 5.20 |
| Carotene/carotenoid | 9689 | 8.49 |
| Partial scores for group two | 21,706 | 19.03 |
| Polyphenol/phenol | 49,267 | 43.16 |
| Flavonoid | 27,058 | 23.70 |
| Tannin | 6191 | 5.42 |
| Coumarin | 1487 | 1.30 |
| Partial scores for group three | 84,003 | 73.58 |
Hits are scored when all the words “defined in the search pattern” appear in the title, keywords and/or article abstract.