Cellulose was extracted from Pandan leaves using a process involving alkali treatment and bleaching. The researchers analyzed the chemical composition of the extracted cellulose, its morphology using SEM, and its structure using FTIR and XRD. They also studied the thermal stability of both Pandan leaves and the extracted cellulose using TGA. The results showed that the treatment removed lignin and hemicellulose, resulting in 86% extraction of cellulose with improved thermal stability.