在实地观察到的消毒过程中加工奶酪粘弹性质的评估
F Buňka1, M Sedlačík2, P Foltin1
1Laboratory of Food Quality and Safety Research, Department of Logistics, Faculty of Military Leadership, University of Defence, Kounicova 65, 662 10 Brno, Czech Republic.
绝育显著改变了加工奶酪的粘弹性,增加了硬度和粘度. 尽管味道和颜色发生了变化,但该产品在加工后仍然可以接受消费者,并且可以很好地传播.
科学领域:
- 食品科学与技术 食品科学与技术
- 乳制品科学 乳制品科学
- 类风病学 类风病学 类风病学
背景情况:
- 消毒加工奶酪需要延长零售和应急用品的保质期.
- 标准储存条件是≤25°C至少24个月.
- 绝育是实现延长保质期的关键方法.
研究的目的:
- 在灭菌过程中对加工奶酪的粘弹性特性进行现场变化的特征.
- 在消毒后分析梅拉德反应和脂质氧化标记物的变化.
- 评估消毒对纹理,颜色,味道和传播能力的影响.
主要方法:
- 在加热,保持和冷却阶段进行现场气质测量 (储存和损失模块,相角).
- 对梅拉德反应和脂质氧化标记物的分析.
- 纹理分析 (硬度,纠正应力,延伸粘度).
- 感官评估 (味道,颜色,可传播性).
主要成果:
- 粘弹性模块最初减少,然后在灭菌期间和之后显著增加,灭菌后相角较低.
- 观察到梅拉德反应和脂质氧化的标记物增加.
- 硬度增加,应力纠正,延伸粘度增加.
- 消毒奶酪呈现出更深的颜色和更糟糕的味道,但保持了消费者接受度和传播能力.
结论:
- 灭菌会导致加工奶酪的风质和纹理特性发生显著的变化.
- 虽然化学标记物和味道和颜色等感官属性受到负面影响,但产品仍然具有可接受的传播能力和消费者接受度.
- 了解这些现场变化对于优化加工奶酪的灭菌过程至关重要.
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