不同灭菌方法对发酵猪肉的保质期和物理化学指标的影响
Changqing Zhao1, Jinping Dai1, Feifei Chen1
1College of Bioengineering, Sichuan University of Science and Engineering, Yibin, China.
Frontiers in nutrition
|November 6, 2023
概括
中温蒸汽杀菌最好通过抑制微生物生长来延长发酵猪肉的保质期. 这种方法保持了可接受的物理化学和感官质量,确保了产品的安全性和风味.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 食品保存技术 食品保存技术
背景情况:
- 发酵猪肉是易受微生物破坏的受欢迎产品.
- 灭菌方法对于延长保质期和确保食品安全至关重要.
- 了解不同灭菌技术对产品质量的影响至关重要.
研究的目的:
- 评估各种杀菌方法对发酵猪肉的保质期的有效性.
- 评估绝育对关键物理化学参数和微生物群体的影响.
- 确定最佳的灭菌方法,以保持产品的质量和延长产品的保质期.
主要方法:
- 在真空密封的发酵猪肉中,经过了六种杀菌方法:沸,消毒,中温蒸汽,高温蒸汽,超声波和紫外线杀菌.
- 在整个储存期间,监测了微生物种群 (金黄色葡萄球菌,大肠杆菌,沙门氏菌,西格拉菌,有氧盘数),物理化学参数 (TVB-N,TBARS) 和感官评估.
- 杀菌参数包括每个方法的特定温度,压力,时间和能量水平.
主要成果:
- 中温蒸汽杀菌 (105°C,0.5Pa,30分钟) 产生了最有利的微生物特征,有氧板数低于1.0毫克CFU/g.
- 黄金葡萄球菌最早被检测到在超声波 (18天) 和紫外线 (15天) 灭菌的皮中,最近在中温蒸汽中 (33天).
- 物理化学参数,如总挥发性基本 (TVB-N) 和硫甲酸反应物质 (TBARS) 保持在中温蒸汽杀菌的可接受范围内.
结论:
- 中温蒸汽杀菌是延长发酵猪肉的保质期的最有效方法.
- 这种方法平衡了微生物安全性,同时保持了理想的物理化学和感官特征.
- 这项研究为优化发酵肉制品的生产和保存提供了宝贵的见解.
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