相关实验视频
Updated: Feb 17, 2026

05:17
Preparation of High-Quality Fermented Fish Product
Published on: August 23, 2019
11.1K
通过强烈的脉冲光来保护鱼的质量:控制微生物无活化和ATP降解
Da-Hee Ryu1, Hye-Jae Choi1, Ji-Yoon Lee1
1Department of Food Science and Biotechnology, Ewha Womans University, Seoul, 03760 South Korea.
Food science and biotechnology
|February 16, 2026
概括
强脉冲光 (IPL) 可以减少鱼上的微生物,并通过减少低素积累来减缓腐烂. 然而,过度的IPL能量可能会加速鱼类的退化,需要优化处理条件.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 保持鱼类的新鲜度和安全性对于公众健康和食品工业至关重要.
- 强脉冲光 (IPL) 是一种新兴的非热技术,用于食品中的微生物无活化.
- 评估储存期间鱼类质量退化对于确定保质期至关重要.
研究的目的:
- 评估强脉冲光 (IPL) 在降低鱼类微生物负载方面的有效性.
- 调查IPL对鱼类新鲜度指标的影响,特别是低丁积累.
- 确定IPL的最佳能量流动,以平衡微生物无活化和保持鱼类质量.
主要方法:
- 六种类型的鱼被IPL处理,能量流动范围为3.6~28.4 J/cm2.
- 在治疗后量化了微生物无活化水平.
- 在整个储存期间,通过测量K1值和低素比率来评估鱼的新鲜度.
- 分析了不同IPL能量水平对ATP降解和素积累的影响.
主要成果:
- 在六种鱼类中,IPL治疗实现了1.23至1.85日志之间的最大微生物无活化水平.
- IPL显著降低了所有接受治疗的鱼类中素积累的速度,在特定的能量流动下观察到显著的效果 (例如,在第10天红海的17.1 J/cm2下减少了74.9%).
- 发现过高的IPL能量流动加快了储存期间鱼类新鲜度的恶化.
结论:
- IPL有效地减少了微生物负载,并减缓了腐烂指标,如鱼类中素积累.
- 优化IPL能量对于最大限度地使微生物无活化至关重要,同时最大限度地减少对鱼类新鲜性的不良影响.
- 需要进一步的研究来确定不同鱼类的IPL处理参数,以确保安全和质量.
相关概念视频
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
1.2K
Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
1.2K
Physical Methods for Controlling Microbial Growth: Temperature
1.2K
Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...
1.2K

