Published 2023

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Publication details

Journal : International Dairy Journal , vol. 145 , p. 1–8–7 , 2023

Publisher : Elsevier

International Standard Numbers :
Printed : 0958-6946
Electronic : 1879-0143

Publication type : Academic article

Contributors : Olsen, Martine Andrea; Ketto, Isaya Appelesy; Øyaas, Jorun; Abdelghani, Ahmed; Svartebekk, Kristine Myhrer; Skeie, Siv Borghild

Research areas

Raw material knowledge

Sensory sciences

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Kjetil Aune
Chief Librarian
kjetil.aune@nofima.no

Summary

The effect of the composite genotypes of αS1-κ-casein (BBAA, BBBB, BCAA) on renneting properties and yield during cheese-making of a Havarti-type cheese was investigated. Milk with αS1-κ-CN BCAA showed a shorter renneting time, while milk with αS1-κ-CN BBAA obtained the highest cheese yield. 24 h after starter addition, different protein profiles were found between the cheeses with different αS1-κ-CN genotypes. After 5 months of ripening, cheese with αS1-κ-CN BBBB contained more free amino acids than αS1-κ-CN BCAA. Cheese with αS1-κ-CN BCAA expressed a higher intensity of sweetness and lower intensity of hardness than the αS1-κ-CN BBBB and BBAA cheeses. Cheeses with αS1-κ-CN BBAA had a higher intensity of sunlight flavour than cheeses with the two other αS1-κ-CN genotypes and were assessed to be less juicy than αS1-κ-CN BBBB cheeses. The composite genotypes of αS1-κ-casein affect milk coagulation, cheese yield and cheese maturation and are highly relevant for the dairy industry.

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