Vikasari, S.N. et al. 2024. Potency of Roselle Calyx (Hibiscus sabdariffa L.) Extract to Inhibit Protein Denaturation in Vitro. JFIOnline | Print ISSN 1412-1107 | e-ISSN 2355-696X. 16, 2 (Jul. 2024), 143–149. DOI:https://doi.org/10.35617/jfionline.v16i2.216.