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  4. Determining the Behavior of Water in Buttermilk Cheese with Polymerized Whey Protein Using Differential Scanning Calorimetry and Nuclear Magnetic Resonance Analysis
 
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Determining the Behavior of Water in Buttermilk Cheese with Polymerized Whey Protein Using Differential Scanning Calorimetry and Nuclear Magnetic Resonance Analysis

Type
Journal article
Language
English
Date issued
2022
Author
Cais-Sokolińska, Dorota 
Bielska, Paulina 
Baranowska, Hanna M.
Tomaszewska-Gras, Jolanta 
Faculty
Wydział Nauk o Żywności i Żywieniu
Journal
Applied Sciences (Switzerland)
ISSN
2076-3417
DOI
10.3390/app122211528
Web address
https://www.mdpi.com/2076-3417/12/22/11528
Volume
12
Number
22
Pages from-to
art. 11528
Abstract (EN)
In this research, the behavior of water in buttermilk cheese with the addition of polymerized whey proteins was determined. Various parameters of the produced cheese, such as texture, color, water activity, and unbound protein fraction, were examined. Four different samples of buttermilk cheese were prepared, including no addition of whey protein concentrate (BMC); addition of whey protein concentrate (BMC/WPC; 5.62%, w/v), single-heated polymerized whey protein (BMC/SPWP; 28%, w/v), and double-heated polymerized whey protein (BMC/DPWP; 28%, w/v). Differential Scanning Calorimetry (DSC) analysis showed that the highest percentage of freezable water in the water fraction and the lowest of unfreezable water was found in buttermilk cheese with WPC and buttermilk cheese with DPWP. Nuclear magnetic resonance (NMR) analysis showed that the relaxation times were longer in buttermilk cheese with WPC, compared to buttermilk cheese with SPWP and DPWP. Single heat treatment of whey proteins increased stickiness almost 3-fold, and double heat treatment had almost a 2-fold increase in work of shear of cheese samples. The calculated total color difference (ΔE) of the cheese samples suggested that those with polymerized whey protein may increase consumer acceptability.
Keywords (EN)
  • buttermilk cheese

  • polymerized whey protein

  • differential scanning calorimetr...

  • nuclear magnetic resonance

  • texture

  • color

License
cc-bycc-by CC-BY - Attribution
Open access date
November 13, 2022
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