Smart Indicator Curcumin Film For Monitoring Freshness of Peeled Blood Clams

Abstract

Peeled blood clam is one of the fresh fish food products which is quite popular among Indonesian people. However, shelled blood clams are a product that is prone to quality deterioration. This is because blood clams are composed mostly of water and protein. A smart packaging application is needed for peeled blood clam products so that consumers can easily find out the freshness level of the product. Research has been carried out on smart labels of indicator films with natural dyes from turmeric rhizome. The purpose of this study was to obtain the optimum concentration of turmeric extract as a natural coloring film indicator for the freshness of peeled blood clam products. Film indicator is made using the basic ingredients of canna starch and various concentrations of turmeric extract by 8%, 10%, 12% and 14%. Tests carried out in this study included RGB mean, weight loss, pH and organoleptic tests. This study used a completely randomized design (CRD) method which consisted of two repetitions for each test. Tests were carried out every 3 hours for 12 hours at room temperature and every 2 days for 8 days at chiller temperature. From this study, it was found that indicator film with a concentration of 12% was the best variation for visually detecting deterioration in quality in shelled blood clams. Film color change occurred on the 2nd day of chiller temperature. The color change of this film has a strong correlation with changes in the pH of the shellfish