Lumansoc, Teresa S.Blasquez, Irenella A.2025-04-252024-05Blasquez, I. A. (2024). Processing of paperboard from the fiber of torch ginger (Etlingera elatior) stem at different levels of cassava starch as binder [Undergraduate thesis, Davao del Sur State College]. Davao del Sur State College Institutional Repository.https://hdl.handle.net/20.500.14578/202This study examined the potential of torch ginger (Etlingera elatior) stem fiber as an alternative source of fiber added with different levels of cassava starch as binder for paperboard production. The study was established with three (3) treatments and each is replicated thrice. The treatments were: Treatment 1: 240 grams cassava starch, Treatment 2: 320 grams cassava starch, and Treatment 3: 480 grams cassava starch. Using a molder, the pulp was molded and sundried until the desired weight was achieved. The paperboards were then tested in terms of odor, paper whiteness, smoothness/texture, grammage, water absorbency, and pH level. The data collected was statistically analyzed using one-way analysis of variance (ANOVA) at 1% and 5% levels of significance. Statistically, results showed significant difference in the odor, paper whiteness, smoothness of texture, or water absorbency of the produced paperboard among the treatments, while the ANOVA results for grammage showed a significant difference. Moreover, the pH level was tested in a composite manner, with pH values ranging from 8.7-9.0 and Treatment 1 having the lowest unit production cost analysis which if PHP 14.46 per piece of paperboard. Thus, torch ginger (E. elatior) stem fiber is a potential material for paperboard production.enEtlingera elatiorNaOHPaperboardCassava starchpH LevelGingerFiberPaperboard--RecyclingPaperboard productionGingerCassavaAlternative sourceFiberThesis