A pH-indicating smart tag based on porous hydrogel as food freshness sensors
Journal of Colloid and Interface Science(2023)
Abstract
Our study demonstrates that the gel undergoes an obvious color shift during the spoilage of milk and shrimp, revealing its potential application as a smart tag signaling food freshness.
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Key words
Smart tag, Gellan gum, Starch, Colorimetric pH indicator, Food safety
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