牛肉通过使用冷空气的射频加热来软化牛肉的最佳条件
Jinse Kim1, Dong Soo Choi1, Yong Hoon Kim1
1Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA, Jeonju, Jeollabuk-do, Republic of Korea.
Journal of food science
|November 20, 2023
概括
射频软化 (RF-T) 通过使用低冷却温度有效地在高温下软化牛肉,同时最大限度地减少微生物破坏. 这种方法在减少细菌生长的情况下实现了类似衰老的效果,使其成为一个有前途的工业应用.
科学领域:
- 食品科学与技术 食品科学与技术
- 肉类科学 肉科学
- 生物技术是生物技术.
背景情况:
- 高温老化 (15-37°C) 加快了牛肉的软化,但有微生物腐烂的风险.
- 恒温加热方法可能导致不必要的微生物繁殖.
- 需要新的方法来实现软化而不会损害食品安全.
研究的目的:
- 研究射频软化 (RF-T) 以实现类似于老化的牛肉软化.
- 为了确定最佳的RF-T条件 (温度,功率,时间) 以抑制微生物生长.
- 评估RF-T对牛肉质地和自由氨基酸含量的影响.
主要方法:
- 牛肉样本在不同的冷却温度 (-20°C至15°C) 和特定的射频加热功率 (15-30W/kg) 下,用RF-T处理了22-48小时.
- 在处理后测量了表面有氧细菌的数量.
- 分析了切片切割力 (SSF) 和自由氨基酸 (FAA) 含量,以评估软化和风味的发展.
主要成果:
- 与较高温度 (15°C和5°C) 相比,较低的冷却温度 (-10°C和-20°C) 显著减少了有氧细菌的数量.
- 在48小时的最佳RF-T条件下 (30W/kg,-20°C) 导致20%以上的软化和FAA的1.5倍增加.
- 在最佳的RF-T条件下,细菌水平 (5.22 log CFU/g) 仍然低于韩国监管限制 (6.7 log CFU/g).
结论:
- 射频软化 (RF-T) 是一种可行的高温软化方法,用于牛肉.
- 在RF-T过程中控制室温有效地抑制了微生物的腐烂,并增强了表面的干燥.
- RF-T提供了一种可复制和可工业应用的方法,以提高安全性和质量来生产类似成熟的牛肉.
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