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Smart Biopolymer-Based Nanocomposite Materials Containing pH-Sensing Colorimetric Indicators for Food Freshness Monitoring.
Molecules. 2022 May 16; 27(10)M

Abstract

Nanocomposite biopolymer materials containing colorimetric pH-responsive indicators were prepared from gelatin and chitosan nanofibers. Plant-based extracts from barberry and saffron, which both contained anthocyanins, were used as pH indicators. Incorporation of the anthocyanins into the biopolymer films increased their mechanical, water-barrier, and light-screening properties. Infrared spectroscopy and scanning electron microscopy analysis indicated that a uniform biopolymer matrix was formed, with the anthocyanins distributed evenly throughout them. The anthocyanins in the composite films changed color in response to alterations in pH or ammonia gas levels, which was used to monitor changes in the freshness of packaged fish during storage. The anthocyanins also exhibited antioxidant and antimicrobial activity, which meant that they could also be used to slow down the degradation of the fish. Thus, natural anthocyanins could be used as both freshness indicators and preservatives in biopolymer-based nanocomposite packaging materials. These novel materials may therefore be useful alternatives to synthetic plastics for some food packaging applications, thereby improving the environmental friendliness and sustainability of the food supply.

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Authors+Show Affiliations

Tavassoli M
Student Research Committee, Tabriz University of Medical Sciences, Tabriz 5166614711, Iran. Nutrition Research Center, Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz 516615731, Iran.
Alizadeh Sani M
Division of Food Safety and Hygiene, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran 1417614411, Iran.
Khezerlou A
Student Research Committee, Tabriz University of Medical Sciences, Tabriz 5166614711, Iran. Nutrition Research Center, Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz 516615731, Iran.
Ehsani A
Nutrition Research Center, Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz 516615731, Iran.
Jahed-Khaniki G
Division of Food Safety and Hygiene, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran 1417614411, Iran.
McClements DJ
Department of Food Science, University of Massachusetts Amherst, Amherst, MA 01003, USA.

MeSH

AnimalsAnthocyaninsBiopolymersColorimetryHydrogen-Ion ConcentrationNanocompositesPlant ExtractsSmart Materials

Pub Type(s)

Journal Article

Language

eng

PubMed ID

35630645

Citation

Tavassoli, Milad, et al. "Smart Biopolymer-Based Nanocomposite Materials Containing pH-Sensing Colorimetric Indicators for Food Freshness Monitoring." Molecules (Basel, Switzerland), vol. 27, no. 10, 2022.
Tavassoli M, Alizadeh Sani M, Khezerlou A, et al. Smart Biopolymer-Based Nanocomposite Materials Containing pH-Sensing Colorimetric Indicators for Food Freshness Monitoring. Molecules. 2022;27(10).
Tavassoli, M., Alizadeh Sani, M., Khezerlou, A., Ehsani, A., Jahed-Khaniki, G., & McClements, D. J. (2022). Smart Biopolymer-Based Nanocomposite Materials Containing pH-Sensing Colorimetric Indicators for Food Freshness Monitoring. Molecules (Basel, Switzerland), 27(10). https://doi.org/10.3390/molecules27103168
Tavassoli M, et al. Smart Biopolymer-Based Nanocomposite Materials Containing pH-Sensing Colorimetric Indicators for Food Freshness Monitoring. Molecules. 2022 May 16;27(10) PubMed PMID: 35630645.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Smart Biopolymer-Based Nanocomposite Materials Containing pH-Sensing Colorimetric Indicators for Food Freshness Monitoring. AU - Tavassoli,Milad, AU - Alizadeh Sani,Mahmood, AU - Khezerlou,Arezou, AU - Ehsani,Ali, AU - Jahed-Khaniki,Gholamreza, AU - McClements,David Julian, Y1 - 2022/05/16/ PY - 2022/04/07/received PY - 2022/05/06/revised PY - 2022/05/10/accepted PY - 2022/5/28/entrez PY - 2022/5/29/pubmed PY - 2022/6/1/medline KW - chitosan KW - integrity indicators KW - intelligent packaging KW - natural anthocyanins KW - pH-responsive films JF - Molecules (Basel, Switzerland) JO - Molecules VL - 27 IS - 10 N2 - Nanocomposite biopolymer materials containing colorimetric pH-responsive indicators were prepared from gelatin and chitosan nanofibers. Plant-based extracts from barberry and saffron, which both contained anthocyanins, were used as pH indicators. Incorporation of the anthocyanins into the biopolymer films increased their mechanical, water-barrier, and light-screening properties. Infrared spectroscopy and scanning electron microscopy analysis indicated that a uniform biopolymer matrix was formed, with the anthocyanins distributed evenly throughout them. The anthocyanins in the composite films changed color in response to alterations in pH or ammonia gas levels, which was used to monitor changes in the freshness of packaged fish during storage. The anthocyanins also exhibited antioxidant and antimicrobial activity, which meant that they could also be used to slow down the degradation of the fish. Thus, natural anthocyanins could be used as both freshness indicators and preservatives in biopolymer-based nanocomposite packaging materials. These novel materials may therefore be useful alternatives to synthetic plastics for some food packaging applications, thereby improving the environmental friendliness and sustainability of the food supply. SN - 1420-3049 UR - https://www.unboundmedicine.com/medline/citation/35630645/Smart_Biopolymer_Based_Nanocomposite_Materials_Containing_pH_Sensing_Colorimetric_Indicators_for_Food_Freshness_Monitoring_ DB - PRIME DP - Unbound Medicine ER -