The invention discloses a
metal-
polyphenol coordination color development
system and application thereof in meat freshness monitoring, and belongs to the technical field of intelligent monitoring, a preparation method of the
metal-
polyphenol coordination color development
system comprises the steps that S1, a
metal salt solution and a
polyphenol solution are mixed, pH is adjusted, and a metal-polyphenol colorimetric solution is obtained; and S2, loading the metal-polyphenol colorimetric solution on a base material,
drying and
cutting to obtain the metal-polyphenol amine response colorimetric device. According to the metal-polyphenol colorimetric material disclosed by the invention, the defects of
potential toxicity, single-stage color change, narrow color change range, single color change and the like of a traditional chemical
pigment are overcome, and the problems of low sensitivity, poor stability, high cost, complicated preparation process and the like of a natural
pigment are solved; the polyphenols and the metals can be recycled from
plant wastes or industrial
processing by adopting a water-soluble extraction method, so that the method has good
economic benefits and is more environment-friendly, and the prepared materials can be recycled.