Optimization and Characterization of Ultrasound-Assisted Pectin Extracted from Orange Waste. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 22, n. 2, p. 344–357, 2024. DOI: 10.21743/pjaec/2021.12.13. Disponível em: http://pjaec.pk/index.php/pjaec/article/view/110. Acesso em: 13 jul. 2025.