CHARACTERIZATION OF ANTIOXIDANT ACTIVITY AND TOTAL PHENOLIC COMPOUND CONTENT OF BIRCH OUTER BARK EXTRACTS USING MICRO PLATE ASSAY. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 1, p. 197–201, 2017. DOI: 10.17770/etr2017vol1.2554. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4193.. Acesso em: 11 mar. 2026.