OPTIMIZATION OF ULTRASONIC EXTRACTION TIME FOR PHENOLIC CONTENT AND ANTIOXIDANT ACTIVITY OF COMMERCIAL CINNAMON EXTRACT. Pakistan Journal of Life and Social Sciences (PJLSS), [S. l.], v. 15, n. 6, 2026. DOI: https://doi.cibangsa.org/DOI-2026-458. Disponível em: https://pjlsedu.com/index.php/pjls/article/view/18. Acesso em: 27 oct. 2026.