Development and Characterization of Additives Content on The Properties of Polyethylene Terephthalate (PET) Bottles for Hot-Fill Applications : The Quality of Fruit Juice Made from Concentrate

Abstract

This research is to study the development of polyethylene terephthalate copolymer bottle packaging with polyethylene glycol (PET-co-PEG) at the ratio of additives. and different forms. To improve the properties, factors affecting the migration and diffusion amounts of each type of primary aromatic amine (PAA) will be studied. of specific migration limits for containers made of certain plastics The limit of detection (LOD) is not more than 0.002 mg/kg. Meets the limits set forth in the Food Contact Materials (FCM) Act by analyzing physical properties. thermal properties, chemical properties, and the study of storage period (self-life), % total soluble solid (brix°), and pH. And the molding of different samples did not affect the change in the chemical composition of the packaging. and when tested, the glass transition temperature (Tg) was 82.5, 81.5, 80.7, 79.8, and 82.2 °C, and the melting temperature (Tm) was 253.9, 253.7, 246.9, 253.5, and 248.9 °C. Therefore, the type of packaging for hot-fill applications It must have the right ratio of additives and formability. It will be able to maintain stability in the quality of concentrated juice and have a longer storage period. Resistant to high-temperature storage Including being able to withstand more acidic conditions. To meet the needs of consumers in terms of quality and safety. It is also an important factor in the advancement of the concentrated fruit juice industry.