Preparation of Smart Packaging Film based on Cassava Starch and Natural Dye from Uncaria Gambir Hunter Leaves

In this research, we reported the fabrication of packaging film based on cassava starch as a matrix crosslink with polyvinyl alcohol as filler we blended with natural dye from Uncaria Gambir extract. U. Gambir in small amounts can reduce the thickness of the film and be spread evenly distributed in the film structure. The study of moisture content in the Starch/PVA-U.Gambir film, is inversely proportional with the amount of U.Gambir. On the other hand, the solubility in water is directly proportional with the amount of U. Gambir. Based on the result of this research. Starch/PVA-U. Gambir film has the potential to be utilized as smart packaging film since it gives different responses toward acid-base condition.