Yusmaniar, Intan Fadia Andani, Futi Kusuma Hati, Afrizal
Uncontrolled temperature fluctuations are a major factor contributing to the deterioration of food products, leading to quality degradation, microbial growth, and an increased risk of foodborne illness. Therefore, the development of effective thermal insulation materials for packaging is crucial for maintaining food temperature and ensuring safety. This research focuses on developing a packaging film based on polyvinyl alcohol (PVA), combined with silica xerogel synthesized from rice husk ash. The film was fabricated using the casting method, incorporating varying concentrations of silica xerogel - specifically 0%, 1%, 3%, 5%, and 7%. The results showed that the film containing 3% silica xerogel exhibited the optimal tensile strength, reaching 25.27 MPa. Furthermore, higher concentrations of silica xerogel in the PVA/xerogel composite film were associated with longer environmental degradation times. Overall, the incorporation of silica xerogel into PVA films has proven effective in maintaining food shape and integrity, supporting its potential as a thermal insulation packaging material. © Published under licence by IOP Publishing Ltd.
Department of Chemistry, State University of Jakarta, Jakarta, Indonesia
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