Research Article

Teeth Whitening and Antibacterial Effects of Juglans regia Bark: A Preliminary Study

Table 4

Sterols identified in Juglans regia.

SterolRetention time

Campesterol47.187
Stigmasterol47.52

Organic acid
 Lactic acid8.898
 Ethanimidic acid9.865
 Glycolic acid10.68
 Citric acid24.722