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. 2022 Sep 6;14(18):3706. doi: 10.3390/polym14183706

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Mechanism of color change in pH−sensitive anthocyanins to monitor shrimp freshness (adapted from Zhao et al. 2022 [106] and You et al. 2000 [102]).