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对高压处理的Serra da Estrela奶酪在冷藏期间质量稳定性的不同包装条件的比较

Rita S Inácio^1,2, Maria J P Monteiro², José A Lopes-da-Silva¹

¹LAQV-REQUIMTE, Department of Chemistry, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal.

Foods (Basel, Switzerland)

|May 27, 2023

概括

高压加工 (HPP) 有效地减少了传统的塞拉达埃斯特雷拉奶酪中的腐烂微生物. 与纸包装相比,真空包装在长期储存期间可以更好地控制蛋白质分解和质地.

科学领域:

食品科学食品科学食品科学
微生物学微生物学
食品技术食品技术食品技术

背景情况:

保护原产地名称 (PDO) 产品Serra da Estrela奶酪传统上使用没有真空密封的纸包装.
高压加工 (HPP) 用于冷巴氏杀菌,以解决安全问题,需要真空包装.

研究的目的:

为了比较非真空纸包装与真空包装对HPP处理的Serra da Estrela奶酪的有效性.
评估包装系统在10个月的储存期内对微生物数量,蛋白质溶解和质感的影响.

主要方法:

测试了两种包装系统:非真空防脂纸和真空塑料薄膜包装.
监测了微生物种群 (乳球菌,乳球菌,肠球菌,总美索菲尔,腐烂微生物,酵母和菌).
在整个10个月的储存期间,评估了奶酪蛋白质分解和质地变化.

主要成果:

在两种包装类型中,HPP显著降低了腐烂微生物的可活细胞数量,低于量化极限 (<3 log cfu g-1).
真空包装可以更好地控制奶酪蛋白解,保持更接近原始对照奶酪的值.
与非真空纸包装奶酪相比,真空包装奶酪的硬度随着时间的推移而增加.

结论:

传统的非真空纸包装适用于塞拉达埃斯特雷拉奶酪的短期存储 (<3个月).
对于延长的储存期 (长达10个月),在塑料薄膜中进行真空包装对于保持奶酪质量和控制微生物活动来说是优越的.

关键词:

羊奶生奶奶酪是牛奶生奶奶酪.高压的高压的高压.微生物进化过程中的微生物.塑料片塑料片塑料片蛋白质溶解过程中的蛋白质溶解.在安全方面,安全是安全的.这是一个感官感官的感觉.储存储存储存储存储存是一个在真空中吸收真空.包裹在纸上,用纸包装.

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