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Butter 2

Cream: heat treatment & crystallisation

11 multiple-choice questions on butter (Cream: heat treatment & crystallisation).

Question 1 of 110 of 11 answered

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Which heat treatment is usually applied to cream for churning (beyond the legal requirement)?

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All 11 questions in this quiz

Which heat treatment is usually applied to cream for churning (beyond the legal requirement)?
What is the purpose of the intense heat treatment of the cream?
What kill rate does the intense heat treatment have?
Which butter defect in particular is counteracted by the destruction of lipases?
Why is the release of SH groups an advantage in the heat treatment?
What is the purpose of cooling the cream?
How is crystal formation defined?
What happens to the fat loss in the buttermilk if the fat does not crystallise out until churning?
How can crystallisation of the fat be promoted?
Which physico-chemical quality requirements apply to cream for churning?
What is destroyed by the heat treatment, giving a better acidifying ability?

Sources

The questions are based on the Danish textbooks below and translated from the Danish. Main source: Mejerilære 2. Page numbers in the quizzes are the books' own; “unknown” means the page could not be established. The full tests also refer to Mælkekemi and Tetra Pak's Dairy Processing Handbook.

Waagner Nielsen, E. & Ullum, J. A. (2003). Mejerilære 1. [Dairy technology, vol. 1: general.] 4th edition, 1st printing. Erhvervsskolernes Forlag, Odense. ISBN 87-7881-397-2.
Waagner Nielsen, E. & Ullum, J. A. (2004). Mejerilære 2. [Dairy technology, vol. 2: products.] 5th edition, 1st printing (1st edition 1986). Erhvervsskolernes Forlag, Odense. ISBN 87-7881-484-7. [main source]
Stein Jensen, P. & Nielsen, J. J. (2006). Mikrobiologi. [Microbiology.] 5th edition (3rd printing 2022). Praxis Forlag A/S, Copenhagen. ISBN 978-87-7881-662-7.
Waagner Nielsen, E. & Buch Kristensen, J. M. (2006). Mikrobiologi og bioteknik. [Microbiology and Biotechnology.] 2nd edition. Erhvervsskolernes Forlag, Odense. ISBN 978-87-7881-666-5.
Stein Jensen, P. (2003). Mejeriproduktion. [Dairy Production.] 3rd edition, 1st printing. Erhvervsskolernes Forlag, Odense. ISBN 87-7881-411-1.
Statens Forsøgsmejeri [Danish State Experimental Dairy] (1961). 128. beretning. [Report no. 128.] Hillerød.

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This is an unofficial teaching and study tool. The quiz content was written for educational use on the basis of the textbooks listed, and translated from the Danish. Copyright in the original texts belongs to their authors and publishers (Erhvervsskolernes Forlag, Praxis Forlag and others) and is not affected by this.

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