原生微生物启动剂在促进食用橄发酵中的有效性:在受控和环境温度下进行工业规模试验
Marco Campus1, Francesco Corrias2, Alberto Angioni2
1AGRIS-Agricultural Research Agency of Sardinia, 07100 Sassari, Italy.
Foods (Basel, Switzerland)
|July 12, 2025
概括
对于"Tonda di Cagliari"食用橄,使用多株初始培养物可确保食品安全,并增强营养药. 控制的发酵温度提高了质量,而启动器减少了加热的需要,降低了能源成本.
科学领域:
- 食品科学与技术 食品科学与技术
- 微生物学 微生物学
- 农业科学 农业科学
背景情况:
- 工业食用橄发酵依赖于微生物活动,以确保安全和质量.
- 传统的发酵过程可能是缓慢而变化的,尤其是在环境温度下.
- 起始培养提供了一种控制和增强发酵过程的方法.
研究的目的:
- 评估多菌株初始培养对工业食用橄发酵的影响.
- 为了比较环境和控制温度 (23-25°C) 的发酵.
- 评估对食品安全,营养成分和感官属性的影响.
主要方法:
- 使用多菌株初始培养物发酵"Tonda di Cagliari"食用橄.
- 在环境和控制温度下进行的发酵过程的比较.
- 分析pH值,微生物数量 (LAB,Enterobacteriaceae),化合物,水分,脂质,纹理和感官可接受性.
主要成果:
- 控制温度的发酵加速了酸化,导致pH值降低和LAB数量增加.
- 即使在环境温度下,初始注射也确保了安全的pH值 (<4.2).
- 启动剂注射的橄显示出显著更高的氧和总含量;控制温度保持了更高的和减少的水分/脂质.
结论:
- 多菌株初始培养提高了食用橄发酵中的食品安全和营养价值.
- 控制的发酵温度可以提高质量参数,降低损坏指标.
- 启动培养可以通过尽量减少加热的需求来降低能源成本,以达到安全的pH水平.
相关概念视频
Microbial Fermentation
406
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
406
Microbial Growth Measurement: Indirect Methods
194
Estimating microbial growth is essential for understanding population dynamics and environmental adaptations. Indirect methods provide valuable insights by measuring parameters such as turbidity, metabolic activity, and biomass, enabling efficient and reproducible assessments.During exponential growth, microbial cells scatter light proportionally to their biomass, a principle used in turbidity measurements. About one million cells per milliliter produce detectable scattering, which a...
194
Methods for Controlling Microbial Growth
508
Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
508
Microbial Growth Measurement: Direct Methods
292
Direct methods for measuring microbial populations in a culture are essential tools in microbiology, providing quantitative data for various applications. Among these, microscopic counts, plate counts, and serial dilution are widely used techniques, each with unique principles and applications.Microscopic CountsMicroscopic counting involves the use of a Petroff-Hausser chamber, a specialized microscope slide with a grid and defined depth. By observing a liquid culture under a microscope,...
292


