Effects of UVA-light on Color Transition of Anthocyanin and Curcumin Dyes and Possible Application of Light-Activated Oxygen Indicator in Food Package

Abstract

　This study aims to experiment appropriate ratio of pigment from the nature to develop as Oxygen indicator. The trial brought the natural pigment of two kinds of vegetation, Red Cabbage and Turmeric. The intensity changes of the SC were in the ratio to weight of 30, 50 and 70 and SED with the ratio of 750, 1000 and 1500 of MC of 10-percent intensity of the weight as the binder. It was found that Red Cabbage film in the ratio to weight of SC to SED equal to 50: 1500, 70: 1500 rapidly changed and acquired the least time for 960 seconds upward after UV radiation. The Turmeric film took the mildest color of change with its original color.