Colorimetric Films Based on Polyvinyl Alcohol and Anthocyanins Extracted from Purple Tomato to Monitor the Freshness of Shrimp

Anthocyanin extracts from purple tomato (PTA) were incorporated with polyvinyl alcohol (PVA), resulting in a series of colorimetric PVA/PTA films with PTA concentrations of 0%, 1%, 3%, and 5% (based on PVA). The role of anthocyanin on color response, Fourier-transform infrared (FTIR), thickness, wat...

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Bibliographic Details
Main Authors: Yangyang Qi, Yana Li
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/16/4/495