Development of a pH‐sensing indicator for shrimp freshness monitoring: Curcumin and anthocyanin‐loaded gelatin films

Abstract An intelligent pH‐sensing indicator containing Roselle (Hibiseus sabdariffa L.) (RS) anthocyanin and curcumin (CR) was developed and characterized as on‐package indicator tags to check the freshness of shrimp during the storage at 4°C. FE‐SEM and FT‐IR analysis showed that RS and CR were su...

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Main Authors: Fatemeh S. Mohseni‐Shahri, Farid Moeinpour
Format: Article
Language:English
Published: Wiley 2023-07-01
Series:Food Science & Nutrition
Subjects:
Online Access:https://doi.org/10.1002/fsn3.3375
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author Fatemeh S. Mohseni‐Shahri
Farid Moeinpour
author_facet Fatemeh S. Mohseni‐Shahri
Farid Moeinpour
author_sort Fatemeh S. Mohseni‐Shahri
collection DOAJ
description Abstract An intelligent pH‐sensing indicator containing Roselle (Hibiseus sabdariffa L.) (RS) anthocyanin and curcumin (CR) was developed and characterized as on‐package indicator tags to check the freshness of shrimp during the storage at 4°C. FE‐SEM and FT‐IR analysis showed that RS and CR were successfully immobilized in the gelatin–glycerol film‐forming substrate. The addition of various natural dyes increased the thickness and antioxidant action of the colorimetric film. To assess the response to changes in the pH, the colorimetric film was immersed in different buffers. Based on volatile amines secreted by shrimp, a test application of a colorimetric film containing natural dyes at a ratio of CR:RS = 1:4 (v/v) was conducted in shrimp at 4°C. The total volatile basic nitrogen (TVB‐N) and the pH of shrimp were monitored during refrigerated storage for 10 days, and the color changes of the indicator were recorded simultaneously. The results indicated that the designed colorimetric film could produce various colors, which are thought to be indicative of the freshness and spoilage of packaged shrimp. Therefore, the target film can be utilized as a promising smart packaging material for monitoring the freshness of shrimp and aquatic products in real time.
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spelling doaj.art-1929cb509dfe4ad99efeaea702af21c32023-07-14T06:57:56ZengWileyFood Science & Nutrition2048-71772023-07-011173898391010.1002/fsn3.3375Development of a pH‐sensing indicator for shrimp freshness monitoring: Curcumin and anthocyanin‐loaded gelatin filmsFatemeh S. Mohseni‐Shahri0Farid Moeinpour1Department of Chemistry, Bandar Abbas Branch Islamic Azad University Bandar Abbas IranDepartment of Chemistry, Bandar Abbas Branch Islamic Azad University Bandar Abbas IranAbstract An intelligent pH‐sensing indicator containing Roselle (Hibiseus sabdariffa L.) (RS) anthocyanin and curcumin (CR) was developed and characterized as on‐package indicator tags to check the freshness of shrimp during the storage at 4°C. FE‐SEM and FT‐IR analysis showed that RS and CR were successfully immobilized in the gelatin–glycerol film‐forming substrate. The addition of various natural dyes increased the thickness and antioxidant action of the colorimetric film. To assess the response to changes in the pH, the colorimetric film was immersed in different buffers. Based on volatile amines secreted by shrimp, a test application of a colorimetric film containing natural dyes at a ratio of CR:RS = 1:4 (v/v) was conducted in shrimp at 4°C. The total volatile basic nitrogen (TVB‐N) and the pH of shrimp were monitored during refrigerated storage for 10 days, and the color changes of the indicator were recorded simultaneously. The results indicated that the designed colorimetric film could produce various colors, which are thought to be indicative of the freshness and spoilage of packaged shrimp. Therefore, the target film can be utilized as a promising smart packaging material for monitoring the freshness of shrimp and aquatic products in real time.https://doi.org/10.1002/fsn3.3375food spoilage sensorintelligent packagingmixed natural dyespH indicators
spellingShingle Fatemeh S. Mohseni‐Shahri
Farid Moeinpour
Development of a pH‐sensing indicator for shrimp freshness monitoring: Curcumin and anthocyanin‐loaded gelatin films
Food Science & Nutrition
food spoilage sensor
intelligent packaging
mixed natural dyes
pH indicators
title Development of a pH‐sensing indicator for shrimp freshness monitoring: Curcumin and anthocyanin‐loaded gelatin films
title_full Development of a pH‐sensing indicator for shrimp freshness monitoring: Curcumin and anthocyanin‐loaded gelatin films
title_fullStr Development of a pH‐sensing indicator for shrimp freshness monitoring: Curcumin and anthocyanin‐loaded gelatin films
title_full_unstemmed Development of a pH‐sensing indicator for shrimp freshness monitoring: Curcumin and anthocyanin‐loaded gelatin films
title_short Development of a pH‐sensing indicator for shrimp freshness monitoring: Curcumin and anthocyanin‐loaded gelatin films
title_sort development of a ph sensing indicator for shrimp freshness monitoring curcumin and anthocyanin loaded gelatin films
topic food spoilage sensor
intelligent packaging
mixed natural dyes
pH indicators
url https://doi.org/10.1002/fsn3.3375
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