β-酪蛋白基因型(A1A1、A1A2和A2A2)与乳凝特性及乳制品(软奶酪、酸奶油和黄油)脂肪酸组成和感官特性的关系

IF 0.8 4区农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2022-10-02 DOI:10.1080/09064702.2022.2141308

Kristina de Vitte, S. Kerzienė, J. Klementavičiūtė, Marius de Vitte, Vaida Dilbienė, R. Stankevičius

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引用次数: 0

摘要

研究了β-酪蛋白CSN2基因型(A1A1、A1A2、A2A2)对牛奶凝固特性、脂肪酸组成和乳制品(软奶酪、酸奶油和黄油)感官特性的影响。从同一畜群的96头奶牛中采集300 L牛奶，根据β-酪蛋白基因型将其分为100 L牛奶池。凝乳酶凝固时间和凝乳凝固速度A2A2乳最快，A1A1乳最慢。因此，A2A2乳凝块硬度最高，A1A1乳凝块硬度最低。A1A1乳制品的单不饱和脂肪酸含量较高，饱和脂肪酸含量较低。多不饱和脂肪酸主要存在于A2A2乳制品中，在A1A2乳制品中含量最低。CSN2基因型虽然影响牛奶凝固性状和乳制品脂肪酸含量，但不影响乳制品的感官性状。因此，选择性地培育具有优选品质的基因型可以改善乳制品。

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Relationship between β-casein genotypes (A1A1, A1A2, and A2A2) and coagulation properties of milk and the fatty acid composition and sensory characteristics of dairy products (soft cheese, sour cream, and butter)

ABSTRACT We examined how β-casein CSN2 genotypes (A1A1, A1A2, A2A2) affected milk coagulation properties, the fatty acid composition, and sensory traits of milk products (soft cheese, sour cream, and butter). We collected 300 L of milk from 96 cows in the same herd and sorted it into 100-L milk pools according to the β-casein genotype. Rennet coagulation time and curd-firming rate were fastest in A2A2 milk and slowest in A1A1 milk. Accordingly, curd firmness was highest in A2A2 milk and lowest in A1A1 milk. A1A1 milk products had higher levels of monounsaturated fatty acids and lower levels of saturated fatty acids. Polyunsaturated fatty acids were mainly found in A2A2 milk products and were lowest in A1A2 products. Although CSN2 genotypes influenced milk coagulation traits and fatty acid content of milk products, they did not influence the latter's sensory traits. Therefore, selectively breeding genotypes with preferred qualities may improve dairy products.

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来源期刊

Acta Agriculturae Scandinavica Section A-Animal Science 农林科学-奶制品与动物科学

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： Acta Agriculturæ Scandinavica, Section A – Animal Science publishes results of original research in animal science and their applications related to the following topics: -Animal breeding and genetics -Molecular genetics -Animal physiology and reproduction -Nutrition and feeding -Animal behaviour and welfare -General animal husbandry and systems of production, including economic and technical aspects -Hygiene and quality of animal products In addition to original articles, covering basic as well as applied subjects, the journal features review articles and short communications. Acta Agriculturæ Scandinavica, Section A – Animal Science forms part of a trilogy of titles published on behalf of the Nordic Association of Agricultural Scientists (NJF). The series also includes Section B - Soil & Plant Science and the recently launched Section C - Food Economics . Acta Agriculturae Scandinavica A, B and C are available to purchase as a combined subscription. This provides access to all three journals in the series, and is available to institutional subscribers only. For full pricing information, please view the Taylor & Francis Journals Price List here. Scientists in research, teaching and extension with specialised interest in animal science and production.