Simple detection of food spoilage using polydiacetylene/poly(vinyl alcohol) hybrid films
- Authors
- Park, Sera; Lee, Gil Sun; Cui, Chunzhi; Ahn, Dong June
- Issue Date
- 4월-2016
- Publisher
- SPRINGER
- Keywords
- polydiacetylene; poly(vinyl alcohol); food spoilage; ammonia detection
- Citation
- MACROMOLECULAR RESEARCH, v.24, no.4, pp.380 - 384
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- MACROMOLECULAR RESEARCH
- Volume
- 24
- Number
- 4
- Start Page
- 380
- End Page
- 384
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/88989
- DOI
- 10.1007/s13233-016-4040-6
- ISSN
- 1598-5032
- Abstract
- Polydiacetylene (PDA)/poly (vinyl alcohol) (PVA) hybrid films are investigated for detection of ammonia gas generated by the food spoilage process. The films were obtained by mixing solutions containing diacetylene vesicles and aqueous PVA, and then drying. The films, which consist of carboxylic-acid-terminated PDA, showed a blue-to-red color transition upon reaction with ammonia gas. Through Fourier transform infrared (FTIR) analysis, we found that the observed color transition resulted from an ionic interaction between the carboxyl group of PDA and ammonia gas. In addition, patterned films were fabricated by selective UV irradiation through a photomask. Finally, the PDA/PVA hybrid films were found to show a color transition after reaction with real proteinic food at 25 A degrees C. These results verify that the PDA/PVA hybrid films can be used for easier and more convenient real- time detection of food spoilage by the naked eye.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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