Research article

The effects of small changes in temperature on proteolysis during isothermal and non-isothermal aging of full-fat and reduced-fat Cheddar cheese

  • Received: 14 April 2022 Revised: 22 May 2022 Accepted: 23 May 2022 Published: 02 June 2022
  • Effective approaches for modulating the evolution of cheese quality attributes are needed for mitigating challenges that are associated with fluctuating supply and demand as well as with disrupt supply chain. Proteolysis is the most important and most complex cascade of events that affects the evolution of cheese quality attributes. Information about the effects of small changes in temperature during isothermal and non-isothermal aging of Cheddar cheese at temperatures lower than 10 ℃ on proteolysis has been developed to a very limited extent. The objective of the research was to age FF and RF Cheddar cheeses for six months at different isothermal and non-isothermal time-at-temperature regimes at temperature ranging from 5 to 8 ℃ and to investigate the effects of these conditions on proteolysis. Changes in the level of cheese-N fractions that are soluble at pH 4.6, soluble in 12% TCA and soluble in 5% PTA were monitored. The proteolytic cascade during aging was significantly (p < 0.05) influenced by a combined impact of the time-at-temperature details of aging and cheese composition. The highest and lowest levels of the investigated fractions were found in cheeses that had been aged isothermally at 8 and 5 ℃, respectively. In most cases, proteolysis in the FF cheeses was to a higher extent than in the RF ones. Proteolysis during non-isothermal aging was significantly affected by the aging regime in a time-at-temperature-specific manner (p < 0.05). The results can offer new opportunities for modulating the rate of cheese aging. The demonstrated significant effect of a very small change in aging temperature on proteolysis during cheese aging also highlights the critical importance of establishing and maintaining isotropic temperature distribution in cheese aging rooms.

    Citation: Moshe Rosenberg, Yael Rosenberg. The effects of small changes in temperature on proteolysis during isothermal and non-isothermal aging of full-fat and reduced-fat Cheddar cheese[J]. AIMS Agriculture and Food, 2022, 7(2): 341-356. doi: 10.3934/agrfood.2022022

    Related Papers:

  • Effective approaches for modulating the evolution of cheese quality attributes are needed for mitigating challenges that are associated with fluctuating supply and demand as well as with disrupt supply chain. Proteolysis is the most important and most complex cascade of events that affects the evolution of cheese quality attributes. Information about the effects of small changes in temperature during isothermal and non-isothermal aging of Cheddar cheese at temperatures lower than 10 ℃ on proteolysis has been developed to a very limited extent. The objective of the research was to age FF and RF Cheddar cheeses for six months at different isothermal and non-isothermal time-at-temperature regimes at temperature ranging from 5 to 8 ℃ and to investigate the effects of these conditions on proteolysis. Changes in the level of cheese-N fractions that are soluble at pH 4.6, soluble in 12% TCA and soluble in 5% PTA were monitored. The proteolytic cascade during aging was significantly (p < 0.05) influenced by a combined impact of the time-at-temperature details of aging and cheese composition. The highest and lowest levels of the investigated fractions were found in cheeses that had been aged isothermally at 8 and 5 ℃, respectively. In most cases, proteolysis in the FF cheeses was to a higher extent than in the RF ones. Proteolysis during non-isothermal aging was significantly affected by the aging regime in a time-at-temperature-specific manner (p < 0.05). The results can offer new opportunities for modulating the rate of cheese aging. The demonstrated significant effect of a very small change in aging temperature on proteolysis during cheese aging also highlights the critical importance of establishing and maintaining isotropic temperature distribution in cheese aging rooms.



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