Amine response smartphone-based portable and intelligent polyvinyl alcohol films for real-time detection of shrimp freshness

Food freshness monitoring is an important component in ensuring food safety for consumers and the food industry. Therefore, there is an urgent need for a portable, low-cost, and efficient detection method to determine the freshness. In this study, polyvinyl alcohol (PVA) was used as polymer carrier...

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Bibliographic Details
Published in:Food chemistry 2024-08, Vol.450, p.139347-139347, Article 139347
Main Authors: Luo, Man, Liu, Ji, Zhang, Yating, Wang, Tao, Ren, Xiaomei, Gui, Lijuan, Zhao, Junyuan, Zhang, Xuwei, Tang, Yunqing, Zeng, Ziting, Hou, Fengzhen, Zhong, Qifeng, Yuan, Zhenwei, Xu, Hui
Format: Article
Language:English
Subjects:
Amines - analysis
Amines - chemistry
Animals
Curcumin - analysis
Curcumin - chemistry
Electrospun nanofibers
Food Packaging - instrumentation
Freshness
Mixed natural dyes
Penaeidae - chemistry
Polyvinyl Alcohol - chemistry
Shellfish - analysis
Smart tab
Smartphone
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Summary:Food freshness monitoring is an important component in ensuring food safety for consumers and the food industry. Therefore, there is an urgent need for a portable, low-cost, and efficient detection method to determine the freshness. In this study, polyvinyl alcohol (PVA) was used as polymer carrier to prepare electrospinning film containing curcumin (Cur) and gardenia blue (GB) as intelligent indicator label on food packaging for real-time nondestructive detection of freshness of shrimp. The detection limit of ammonia response is less than or equal to 20 ppm, and the detection time is about 1 min, indicating that it has a sensitive response effect. At the same time, a smartphone application that can identify amines in response to color changes has been developed, and consumers can understand freshness by scanning the label. This study demonstrates the huge potential of smart indicator labels for food freshness monitoring. •Preparation of intelligent label using natural pigments curcumin and gardenia blue.•PVA has low cost, easy degradation, and is environmentally friendly.•The stability of smart tags is increased through chemical crosslinking using glutaraldehyde.•Mobile phone applets to achieve real-time and accurate detection.
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2024.139347