Monitoring fish freshness with pH-sensitive hydrogel films containing quercetin or eucalyptol

Mirzaei, Akbar; Mirzaei, Ghazaleh; Nezafat, Zahra; Javanshir, Shahrzad; Karimkhani, Mohammad Mahdi; Jamshidi, Abdollah

doi:10.1016/j.fochx.2024.101738

Food Chemistry: X

2024

DOI: 10.1016/j.fochx.2024.101738

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Monitoring fish freshness with pH-sensitive hydrogel films containing quercetin or eucalyptol

Akbar Mirzaei,

Ghazaleh Mirzaei,

Zahra Nezafat

et al.

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Preparation and Characterization of Bio-Based Freshness Indicator Labels Loaded with Natural Pigments with High Stability and Sensitivity

Tan,

Liu,

Cheng

et al. 2024

Foods

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Freshness indicator labels are crucial for food quality monitoring. However, existing labels often lack stability and sensitivity. This study aims to develop a safe freshness indicator label with high stability and sensitivity. By evaluating the pH response characteristics and stability of four natural pigments, purple potato anthocyanin (PA) was identified as having the best color properties. Mixing the more stable alizarin (AL) with PA improved the stability of the pigment solution without reducing sensitivity. These film labels are prepared with three natural biomolecules and polymers that are a two-by-two composite of them: soybean isolate protein, acacia bean gum, and sodium alginate. Through comparisons of ammonia response, color stability, water solubility, and mechanical properties, the soy protein isolate and locust bean gum composite were determined to be the optimal substrate system. The label of soybean protein isolate and locust bean gum was initially applied to the freshness identification of shrimp and chicken. The results show that the label can effectively respond to the spoilage of aquatic products and meat products and has great application potential in the field of food packaging.

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Preparation and Characterization of Bio-Based Freshness Indicator Labels Loaded with Natural Pigments with High Stability and Sensitivity

Tan,

Liu,

Cheng

et al. 2024

Foods

View full text Add to dashboard Cite

show abstract

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Monitoring fish freshness with pH-sensitive hydrogel films containing quercetin or eucalyptol

Cited by 1 publication

References 56 publications

Preparation and Characterization of Bio-Based Freshness Indicator Labels Loaded with Natural Pigments with High Stability and Sensitivity

Preparation and Characterization of Bio-Based Freshness Indicator Labels Loaded with Natural Pigments with High Stability and Sensitivity

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