Laju Perubahan Bilangan Peroksida VCO Dalam Botol Kaca Bening Terisolasi Dengan Metode Accelerated Shelf Life Testing

Abstract

Indonesia has great potential in the development of coconut derivative products, one of which is VCO which has high economic value and extensive health benefits. However, the quality of VCO can decrease during storage due to the oxidation process characterized by an increase in the peroxide value. Storage temperature and packaging type are important aspects that affect the stability of the quality and shelf life of the product. This study aims to analyze the effect of temperature and storage time on changes in the peroxide value of VCO in insulated clear glass bottles, determine the appropriate reaction kinetic model, and predict the shelf life using the Accelerated Shelf-Life Testing (ASLT) method with the Arrhenius equation approach. The study was conducted by storing VCO samples at various temperatures of 28°C, 40°C, and 50°C for 42 days, with observation intervals every seven days. The parameter analyzed was the peroxide value using the titrimetric method. The results showed that an increase in storage temperature was directly proportional to the oxidation rate. This is evidenced by the reaction rate constant (k) which increases with increasing temperature, namely 0.000978 days⁻¹ (28°C), 0.002483 days⁻¹ (40°C), and 0.005119 days⁻¹ (50°C). Based on the peroxide value parameter, the predicted shelf life of VCO in an insulated clear glass bottle is 1,850.7 days at 28°C, 728.96 days at 40°C, and 353.57 days at 50°C. In conclusion, the use of insulated containers can provide protection, but storage temperature remains a critical factor. It is recommended that storage be carried out at low temperatures to maximize the product's shelf life.