用无线电频率或常规连续加热处理的西红油同质 (salmorejo) 的消毒温度的验证
Marina Kravets1, Cristina Cedeño-Pinos1, Andrés Abea2
1Department of Food Technology and Science and Nutrition, Veterinary Faculty, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain.
Foods (Basel, Switzerland)
|August 12, 2023
概括
射频 (RF) 和常规加热 (CH) 的巴氏杀菌有效地减少了salmorejo的微生物. 在80°C的巴氏杀菌可以平衡微生物无活化和质量损失的新鲜类产品.
科学领域:
- 食品科学 食品科学 食品科学
- 食品工程 食品工程
- 热处理热处理
背景情况:
- 萨尔莫雷霍 (Salmorejo) 是一种以番茄为基础的冷泥,通常使用常规加热 (CH) 进行巴氏化.
- 射频加热 (RF) 由于其体积加热特性,可以提高巴氏杀菌的潜力.
- 了解热引起的变化对于优化salmorejo加工至关重要.
研究的目的:
- 通过RF和CH连续加热,验证salmorejo的消毒温度.
- 为了比较RF和CH在微生物和酶失活中的有效性.
- 评估热处理对salmorejo质量属性的影响.
主要方法:
- 在70-100°C的温度下,Salmorejo使用RF (27.12 MHz) 和CH进行了巴氏杀菌.
- 进行了微生物学 (总和胞性美索菲尔微生物) 和酶学 (pectin甲基化酶,过氧化酶,多氧化酶,多甲基化酶) 分析.
- 评估了质量参数,包括颜色,味道,质地,维生素C含量和脂质氧化.
主要成果:
- 两种CH和RF治疗都显著降低了微生物负载,并使关键酶 (pectin甲基化酶,过氧化酶,多氧化酶) 失活.
- 通过这两种方法,都没有抑制聚氨酸酶的活性.
- 在80°C的最佳消毒实现了微生物/酶失活和最小的热损伤之间的平衡,保持了类似新鲜的质量.
结论:
- 使用常规或射频加热,在80°C下对salmorejo进行消毒,可以有效地实现微生物和酶抑制,同时保持产品质量.
- 射频加热为CH提供了一个可行的替代方案,用于生产高质量的巴氏化盐.
- 进一步研究聚甲氨酶抑制可能是有必要的,以提高保质期.
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