Published 2026-11-15
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Qualitative determination of biological phenolic compounds using Millon's reagent

DOI: https://doi.org/10.22490/26194759.12037
Roger Alberto Rabelo Florez National Open and Distance University (UNAD) image/svg+xml
Valerin Paola Hincapie Tapia National Open and Distance University (UNAD) image/svg+xml
Yurley Patricia Guerrero Rodríguez National Open and Distance University (UNAD) image/svg+xml
Katerine Escorcia Díaz National Open and Distance University (UNAD) image/svg+xml
Danna Lamboglia Rodríguez National Open and Distance University (UNAD) image/svg+xml
Yibelis Yacelis Carrillo Almeira National Open and Distance University (UNAD) image/svg+xml
Shirly Gutiérrez Beleño National Open and Distance University (UNAD) image/svg+xml
Candy Margarita Alvarez Rodriguez National Open and Distance University (UNAD) image/svg+xml
Katya Gicela García Pérez National Open and Distance University (UNAD) image/svg+xml
Edhisson Navarro Guerrero National Open and Distance University (UNAD) image/svg+xml
Milena Cuellar Meneses National Open and Distance University (UNAD) image/svg+xml
Alexandra Rosmery Sanjuan Arias National Open and Distance University (UNAD) image/svg+xml
Sofía Michel Lobo Pacheco National Open and Distance University (UNAD) image/svg+xml
Laura Liceth Caamaño Ballesteros National Open and Distance University (UNAD) image/svg+xml
Cristian David Rodriguez Leiva National Open and Distance University (UNAD) image/svg+xml
Rosa Delis Torres Romero National Open and Distance University (UNAD) image/svg+xml
Yulitza Yaileth Caldozo Rosado National Open and Distance University (UNAD) image/svg+xml
Estefany Lorena Rosado Sánchez National Open and Distance University (UNAD) image/svg+xml
Vanessa Martínez Díaz National Open and Distance University (UNAD) image/svg+xml
Yamilitza Araujo Calero National Open and Distance University (UNAD) image/svg+xml
Dana Vanessa Amaris Meza National Open and Distance University (UNAD) image/svg+xml
Naren David Castañeda Lobo National Open and Distance University (UNAD) image/svg+xml
Maria José Lora Bertel National Open and Distance University (UNAD) image/svg+xml
Ingrith Gisela Sarabia Cardenas National Open and Distance University (UNAD) image/svg+xml
Tatiana Marcela Mendoza Salas National Open and Distance University (UNAD) image/svg+xml
Carolina Judith De La Cruz García National Open and Distance University (UNAD) image/svg+xml
Vicky Consuelo Caycedo Rodriguez National Open and Distance University (UNAD) image/svg+xml

Introduction: Tyrosine is a non-essential aromatic amino acid that acts as a major constituent in protein synthesis. Objective: The purpose of this research was to identify the presence of tyrosine in different biological samples. Methodology: A qualitative, experimental approach was used to identify phenolic compounds in various biological samples by observing color changes resulting from specific chemical reactions. Results: Tyrosine was not successfully identified in the test tubes containing the reagents and biological samples. Discussion: Negative results (yellow color) were observed in test tubes expected to test positive (red or pink color). This occurred because the test tubes were not properly shaken after adding Millon's reagent. Conclusion: The laboratory objective was not achieved, as the qualitative Millon's test did not allow for the detection of tyrosine in biological simples.

keywords: Millon's test, Tyrosine, Protein, Aromatic rings
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How to Cite

Rabelo Florez, R. A., Hincapie Tapia, V. P., Guerrero Rodríguez, Y. P., Escorcia Díaz, K., Lamboglia Rodríguez, D., Carrillo Almeira, Y. Y., Gutiérrez Beleño, S., Alvarez Rodriguez, C. M., García Pérez, K. G., Navarro Guerrero, E., Cuellar Meneses, M., Sanjuan Arias, A. R., Lobo Pacheco, S. M., Caamaño Ballesteros, L. L., Rodriguez Leiva, C. D., Torres Romero, R. D., Caldozo Rosado, Y. Y., Rosado Sánchez, E. L., Martínez Díaz, V., … Caycedo Rodriguez, V. C. (2026). Qualitative determination of biological phenolic compounds using Millon’s reagent. Biociencias, 10(1), 89-97. https://doi.org/10.22490/26194759.12037
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