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Title

Application of pH Indicator Label Based on Beetroot Color for Determination of Milk Freshness

Year: 1399
COI: JR_JEHSD-5-3_005
Language: EnglishView: 61
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Authors

Razieh Eshaghi - Department of Food Hygiene and Safety, School of Public Health, International Campus, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Elham khalili Sadrabad - Zoonotic Diseases Research Center, Department of Food Hygiene and Safety, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Ali Jebali - Medical Biotechnology Research Center, Ashkezar Branch, Islamic Azad University, Ashkezar, Yazd, Iran.
Seyedhossein Hekmatimoghaddam - Department of Advanced Medical Sciences and Technologies, School of Paramedicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Fateme Akrami Mohajeri - Zoonotic Diseases Research Center, Department of Food Hygiene and Safety, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.

Abstract:

Introduction: Applying of a new indicator in food packaging can be effective to inform consumers about the freshness and quality of the products. Materials and Methods: In the current study, a new milk freshness label was investigated containing beetroot color and multi layers of polystyrene. The label characteristics were investigated by estimating color number, release test, and scanning electron microscopy (SEM). The total bacterial count, pH, lactic acid concentration in milk, and label color number were measured using standard plate count, pH meter, titration of acidity, color analysis software, and UV spectrophotometry on days ۰, ۳, ۴, ۵, ۶, and ۷ at refrigerator temperature (۴ ± ۰.۲°C). Results: The label reacted to total bacterial count and pH changes with a visible color during milk spoilage. A positive correlation was found between the label color changes, total bacterial count, and pH. The color of label turned from dark red to light brown, which was related to the chemical changes and bacterial count of milk. Conclusion: According to this simple, visible, and affordable label, the shelf life of pasteurized milk was estimated as five days.

Keywords:

Paper COI Code

This Paper COI Code is JR_JEHSD-5-3_005. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1346742/

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Eshaghi, Razieh and khalili Sadrabad, Elham and Jebali, Ali and Hekmatimoghaddam, Seyedhossein and Akrami Mohajeri, Fateme,1399,Application of pH Indicator Label Based on Beetroot Color for Determination of Milk Freshness,https://civilica.com/doc/1346742

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The specifications of the publisher center of this Paper are as follows:
Type of center: علوم پزشکی
Paper count: 3,484
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