Modified atmosphere packaging for milk cake: assessment of ideal gas composition for extending shelf life

PurposeMilk cake is a well-renowned khoa-based dairy product in India, produced either from the buffalo milk or using a specific danedar variety of khoa. Under ambient conditions, shelf-life of milk cake is generally up to 3–4 days, whereas under refrigeration conditions, it can last up to 12–14 day...

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Bibliographic Details
Published in:British food journal (1966) 2021-07, Vol.123 (8), p.2893-2906
Main Authors: Chawla, Rekha, Sivakumar, S, Mishra, Santosh Kumar, Kaur, Harsimran, Anurag, Rahul Kumar
Format: Article
Language:English
Subjects:
Animal sciences
Atmosphere
Buffalo milk
Cakes
Carbon dioxide
Dairy industry
Dairy products
Food
Food packaging
Gas composition
Gases
Ideal gas
Milk
Packaging
Parameters
Polyethylene terephthalate
Refrigeration
Shelf life
Storage life
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Summary:PurposeMilk cake is a well-renowned khoa-based dairy product in India, produced either from the buffalo milk or using a specific danedar variety of khoa. Under ambient conditions, shelf-life of milk cake is generally up to 3–4 days, whereas under refrigeration conditions, it can last up to 12–14 days. Therefore, the present study aims to evaluate the effect of modified atmosphere packaging (MAP) to enhance the shelf-life and keeping intact freshness of milk cake under refrigerated conditions (4 ± 2 °C).Design/methodology/approachDifferent gas concentrations of N2 and CO2 (70:30, 50:50 and 90:10) were used as a treatment, whereas control samples were kept under atmospheric air composition. The product was examined for sensory, physicochemical and microbiological parameters at weekly intervals.FindingsThe physicochemical and microbiological attributes displayed gradual elevation with progressive storage period in all the samples. However, the overall sensory profile of the product remained acceptable for a longer duration. Most of the quality parameters in control declined more rapidly with a shelf life of 14 days, in comparison to MAP packed samples, where gas flushing with the ratio 70:30 was found to be best suited for extending the shelf life of milk cake up to 28 days at refrigeration temperature.Originality/valueTo extend the shelf life of milk cake, modified atmosphere was provided with different gas ratios to reach a best-suited environment for sensory, storage life and proximate parameters.
ISSN:0007-070X
1758-4108
DOI:10.1108/BFJ-09-2020-0785