Maqboulah Almasouri and Anwaigy Almasawri 2025. Estimation of Free Acid Content and the Effect of Thermal Treatments on HMF Levels in Samples from the Local Market in Derna, Libya. AlQalam Journal of Medical and Applied Sciences. (Dec. 2025), 2728–2731. DOI:https://doi.org/10.54361/ajmas.258490.