Design of experiment for evaluation the optical condition in deodorizing charcoal forming from mangosteen peel
Keywords:
Drying, Deodorizing charcoal, Mangosteen peel, Design of experimentAbstract
Mangosteen peel odor-absorbing charcoal adds value to agricultural waste, aligning with the circular economy and supporting community products through the One Tambon One Product initiative (OTOP). However, due to the trial-and-error methods used by OTOP groups, quality control is inconsistent, leading to mold growth caused by high moisture content. This research aimed to address this problem by investigating factors affecting moisture levels and identifying the optimal formulation through an experimental design involving three factors: starch type (Tapioca starch and rice flour), mixing ratio (80, 100, and 120 grams), and aging time (8, 10, and 12 hours), with three experimental replicates. The results revealed that only aging time significantly influenced moisture content at a 95% confidence level with an error margin of 5%, and the best formulation consists of 800 grams of mangosteen peel, 100 grams of rice flour, and aging time of 12 hours.
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