高压加工对鱼冷藏过程中的颜色,纹理和挥发性配置的影响
Lama Ismaiel1, Ancuta Nartea1, Benedetta Fanesi1
1Department of Agricultural, Food and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy.
Foods (Basel, Switzerland)
|January 25, 2025
概括
高压加工 (HPP) 通过保持质量,有效地延长了沙丁鱼的保质期. 在冷藏期间,HPP处理减少了氧化,并保持了理想的感觉属性.
科学领域:
- 食品科学 食品科学 食品科学
- 海洋生物学 海洋生物学
- 食品技术 食品技术 食品技术
背景情况:
- 延长新鲜鱼类的保质期,如沙丁鱼,同时保持其质量是一个重大挑战.
- 非热加工技术,如高压加工 (HPP),为保护海产品质量提供了潜在的解决方案.
研究的目的:
- 研究高压加工 (HPP) 对新鲜沙丁鱼的物理化学属性和保质期的影响.
- 评估不同HPP压力 (400和600MPa) 和保持时间 (1-10分钟) 在冷藏14天期间对沙丁鱼质量的影响.
主要方法:
- 新鲜的沙丁鱼在不同的养时间下,在400MPa和600MPa下受HPP的约束.
- 物理化学分析包括纹理,颜色和挥发性有机化合物分析.
- 样品在寒冷条件下储存了14天,并定期进行质量评估.
主要成果:
- 增加的HPP压力和保持时间导致沙丁鱼在储存期间的硬度和性更大,并且沙丁鱼的L*值更高.
- 与对照样本相比,HPP处理的沙丁鱼在整个储存期内表现出较低的a*值.
- HPP显著改变了挥发性特征,减少了诸如六和2,4-六等氧化化合物的产生,并持续降低了水平.
结论:
- 高压加工显示了延长沙丁鱼的保质期的潜力.
- HPP治疗有助于保持关键的质量属性,包括质地和颜色,并减少脂质氧化.
- 该研究强调HPP是一种可行的技术,可以提高沙丁鱼的质量和可销售性.
相关概念视频
Extraction: Effects of pH
Consider a neutral form of an amine, B, with a partition coefficient, K, in a liquid mixture containing organic and aqueous phases. The pH of the aqueous phase affects the charge on acidic and basic solutes, and the charged form is usually more soluble in the aqueous phase. Suppose the conjugate acid form of the amine is soluble only in the aqueous phase while the base form is soluble in both phases. Then the distribution coefficient, D, can be given as the ratio of amine concentration in the...
Microbial Spoilage of Food
Microbial food spoilage refers to the degradation of food quality resulting from the metabolic activity of microorganisms such as bacteria, yeasts, and molds. These microbes proliferate on various food substrates depending on factors such as moisture content, nutrient availability, and storage conditions, leading to undesirable sensory and structural changes.Bacteria are primary agents of spoilage in high-moisture, nutrient-dense foods like meat, milk, and vegetables. Microbial spoilage occurs...
Pasteurization and Food Preservation
Pasteurization is a widely employed thermal processing technique designed to enhance the safety and shelf life of perishable food and beverages. By subjecting products to specific high temperatures for controlled durations, this method effectively inactivates pathogenic microorganisms and spoilage enzymes without significantly compromising sensory qualities. The technique has been pivotal in food safety management, especially for consumables susceptible to microbial contamination such as milk,...
Principles of Food Preservation
Food spoilage results from microbial growth, enzymatic activity, and environmental factors that gradually degrade the sensory, nutritional, and safety qualities of food. Preservation techniques aim to slow or halt these processes to extend shelf life and maintain product quality.A key concept in food microbiology is the microbial growth curve, which includes four phases: lag, exponential (log), stationary, and death. During the lag phase, bacteria adjust to their environment without significant...
Methods of Controlling Food Spoilage
Food spoilage is caused by microbial growth or by chemical and physical changes, all of which affect the taste, texture, and safety of food.Temperature-Based PreservationRefrigeration at 0–4 °C slows microbial growth and enzyme activity, making it ideal for short-term storage. However, certain spoilage organisms—such as psychrotrophs like Listeria monocytogenes—can still proliferate at these temperatures. Freezing below -18 °C further slows biological processes by forming ice crystals, which...


