Research Article
Teeth Whitening and Antibacterial Effects of Juglans regia Bark: A Preliminary Study
Table 4
Sterols identified in Juglans regia.
| Sterol | Retention time |
| Campesterol | 47.187 | Stigmasterol | 47.52 |
| Organic acid | Lactic acid | 8.898 | Ethanimidic acid | 9.865 | Glycolic acid | 10.68 | Citric acid | 24.722 |
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