Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 8, Issue 26, Pages 9731-9741Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.0c01833
Keywords
Cellulose nanocrystal; Hydroxypropyl guar; Anthocyanin; Ionic liquid; pH-sensing film
Categories
Funding
- National Natural Science Foundation of China [21875050, 31270633]
- Natural Foundation of Shandong Province [ZR2017MC007]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX18_1825]
Ask authors/readers for more resources
Simple, fast, and accurate detection of food freshness is of considerable significance to ensure food safety. The pH values of foods can be good indicators of their freshness, which can be used for real-time detection of food quality. Herein, we fabricated a pH-sensing film for flexible smart labels based on hydroxypropyl guar (HPG), cellulose nanocrystal (CNC), 1-butyl-3-methylimidazolium chloride (BmimCl), a kind of ionic liquid (IL), and anthocyanin (Anth). We investigated the structure, optical properties, and mechanical strength of the composite films. These films can be used to detect ammonia (NH3) generated from seafood during storage by pH-sensing capability and monitor the real-time freshness of seafood. The HPG/CNC/IL/Anth film exhibited several advantages, such as wide color-change range, easy identification, high sensitivity, good reversibility, excellent stability, and low detection limit. The pH-sensing films can function as flexible smart labels for real-time, visual, and accurate detection of food freshness in cold chain logistics and other fields.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available