Self-assembled polyacylated anthocyanins on anionic wood film as a multicolor sensor for tracking TVB-N of meat

2Citations
Citations of this article
2Readers
Mendeley users who have this article in their library.
Get full text

Abstract

Available food indicator films do not have a wide color variation and have a low TVB-N carrying capacity. In this study, we generated a high TVB-N-loading multicolor sensor based on self-assembled polyacylated anthocyanins on anionic wood film for tracking meat freshness. We constructed an anionic wood film with H2O2/NaOH to fix Clitoria ternatea anthocyanins via electrostatic interactions. The maximum adsorption capacity was 0.82 mg/g at 50 °C for 4 h. The values of L*, a* and b* were 42.16, 7.30, and − 19.31, respectively. Clitoria ternatea anthocyanins-fixed wood film (CTWF) exhibited four significant color changes under different pH values with high pH-sensitivity. Furthermore, the fixation of Clitoria ternatea anthocyanins enhanced the thermal stability of the anionic wood film as the maximum decomposition temperature of CTWF increased from 323 °C to 336 °C. The water contact angles on the original wood film, anionic wood film, CTWF (Q min), and CTWF (Q max) were 84°, 75°, 55°, and 48° within 1 s, respectively. In addition, CTWF reacted with volatile amines due to its adequate hydrophilicity, changing from violet to green within 3 s at 53% RH under 7.50 mmol/L NH3, which is beneficial for monitoring meat freshness. When TVB-N of 14.56 mg in 100 g of pork approached 15 mg/100 g (GB 2707–2016), the color of CTWF (0.6 cm × 0.6 cm) changed from purple to blue. Therefore, CTWF holds potential as a smart sensor that can monitor the quality of protein-rich foods in real time.

Cite

CITATION STYLE

APA

Yun, Y., Chi, W., Liu, R., Ning, Y., Liu, W., Li, J., & Wang, L. (2024). Self-assembled polyacylated anthocyanins on anionic wood film as a multicolor sensor for tracking TVB-N of meat. Industrial Crops and Products, 208. https://doi.org/10.1016/j.indcrop.2023.117834

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free