| Literature DB >> 31826465 |
Shaolei Kang1, Hualin Wang2, Li Xia1, Minmin Chen1, Linlin Li1, Junfeng Cheng1, Xingjiang Li3, Shaotong Jiang3.
Abstract
In this work, a colorimetric film was designed for shrimp freshness monitoring by incorporating rose anthocyanins (RAs) in polyvinyl alcohol/okra mucilage polysaccharide (PVA/OMP) composite film. The presence of OMP changed the film-forming solution from Newtonian to non-Newtonian fluid. The addition of OMP and RAs decreased the crystalline of PVA due to the hydrogen bonds among RAs, OMP and PVA. An appropriate content of RAs and OMP could improve the film mechanical and barrier properties. The colorimetric film showed distinguishable color changes at pH 2-12 and was high sensitive to volatile ammonia. The target film of PVA/OMP-RAs could effectively monitor shrimp freshness in real time and the color changes were easily distinguished by naked eye, suggesting its potential in intelligent packaging for freshness monitoring of aquatic products and meat foods.Entities:
Keywords: Absolute ethanol (PubChem CID: 702); Ammonia (PubChem CID: 222); Colorimetric film; Freshness monitoring; Glucose (PubChem CID: 5793); Hydrochloric acid (PubChem CID: 313); Magnesium oxide (PubChem CID: 14792); Okra mucilage polysaccharides; Phenol (PubChem CID: 996); Polyvinyl alcohol; Polyvinyl alcohol (PubChem CID: 11199); Red rose anthocyanins; Sodium hydroxide (PubChem CID: 14798); Sulfuric acid (PubChem CID: 118)
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Year: 2019 PMID： 31826465 DOI： 10.1016/j.carbpol.2019.115402
Source DB: PubMed Journal: Carbohydr Polym ISSN： 0144-8617 Impact factor: 9.381