A pH-indicating smart tag based on porous hydrogel as food freshness sensors

Journal of Colloid and Interface Science(2023)

Cited 3|Views7
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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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