闪光加热工艺,以有效地保存肉类
Yimin Mao1,2, Peihua Ma3, Tangyuan Li1
1Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA.
Nature communications
|May 8, 2024
概括
一种新的闪光加热方法迅速使牛肉上的表面微生物失活,形成一个薄薄的脱水层. 这样可以保持食品安全和质量,而不会影响牛肉.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 材料科学 材料科学 材料科学
背景情况:
- 传统的食品保存方法可能会对感官质量产生负面影响.
- 维护食品安全和质量对于公众健康至关重要.
研究的目的:
- 开发和评估一种使用超高温闪光加热的新型食品保存技术.
- 评估这种方法对微生物无活化和食品质量的影响.
主要方法:
- 将高电力应用于碳基板,以快速加热 (<1秒) 到超过2000 K的朱尔热量.
- 用超高温闪光加热处理牛肉的表面,以创建一个~100微米的不活性层.
主要成果:
- 微生物对有氧美索菲尔细菌,Enterobacteriaceae,酵母和菌的无活化,使其低于检测极限.
- 保存牛肉的视觉外观,质地和营养水平超过5天的室温储存.
- 与未经处理的对照组相比,微生物生长和质量恶化显著减少.
结论:
- 超高温闪光加热是提高食品安全和质量的有希望的技术.
- 这种表面处理方法有效地使微生物无活化,同时保持牛肉的整体特性.
- 该技术为传统的保存方法提供了潜在的替代方案.
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