Effect of different extraction solvents on the content of Thymoquinone content of Nigella sativa L. seeds using UV-Visible spectroscopy and evaluation of the free radical scavenging activity. Indian Journal of Natural Products and Resources (IJNPR) [Formerly Natural Product Radiance (NPR)], [S. l.], v. 14, n. 1, p. 22–27, 2023. DOI: 10.56042/ijnpr.v14i1.1135. Disponível em: https://or.niscpr.res.in/index.php/IJNPR/article/view/1135. Acesso em: 26 may. 2026.