压力温度对物种,挥发性概况和丰富的油中的感觉评价的影响
Ming Chen1, Jingyi Wang2, Wangting Zhou1
1School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China.
Food research international (Ottawa, Ont.)
|November 21, 2025
概括
压缩温度显著影响丰富的油 (SROs),降低含量和改变挥发性概况. 较高的温度增加了烤的风味,但减少了有益的有机物种.
科学领域:
- 食品科学 食品科学 食品科学
- 营养化学 营养化学
- 分析化学 分析化学
背景情况:
- 富含的油 (SROs) 由于其营养益处而受到重视.
- 加工温度是影响食用油质量的关键因素.
研究的目的:
- 研究压缩温度对物种,挥发性化合物和SROs感官属性的影响.
- 了解不同温度范围 (50-150°C) 如何影响SRO特性.
主要方法:
- 在五个不同的温度范围内生产SRO:50-60°C (CPO),70-80°C (LPO),90-100°C (MPO),110-120°C (SPO) 和140-150°C (HPO).
- 分析了物种,挥发性有机化合物 (VOC) 概况和感官属性.
- 使用主要成分分析 (PCA) 来分析VOC数据.
主要成果:
- 总含量随着温度的升高而显著下降,有机物种表现出高热敏度.
- 挥发性有机化合物的多样性和丰度随着压缩温度的增加而增加,低温和高温SROs具有不同的配置.
- 感官评估将低温的SRO与绿色香味,高温的SRO与烤/坚果和烟雾的音符联系起来.
结论:
- 压缩温度极大地影响SRO中的保留和风味的发展.
- 优化压缩温度对于在SRO生产中平衡营养价值 (含量) 和理想的风味配置至关重要.
相关概念视频
Responses to Heat and Cold Stress
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
Effects of Temperature on Free Energy
The spontaneity of a process depends upon the temperature of the system. Phase transitions, for example, will proceed spontaneously in one direction or the other depending upon the temperature of the substance in question. Likewise, some chemical reactions can also exhibit temperature-dependent spontaneities. To illustrate this concept, the equation relating free energy change to the enthalpy and entropy changes for the process is considered:
Pressure Gauges
Most pressure gauges, like those on scuba tanks, are calibrated to read zero at atmospheric pressure. Readings from such gauges are called the gauge pressure, which is the pressure relative to atmospheric pressure. When the pressure inside the tank exceeds atmospheric pressure, the gauge reports a positive value. Some gauges are designed to measure negative pressure. For example, many physics experiments must take place in a vacuum chamber, a rigid chamber from which some of the air is pumped...
Tension
Tension is a force along the length of a medium, in particular, a force carried by a flexible medium, such as a rope or cable. The word "tension" comes from Latin, meaning "to stretch". Not coincidentally, the flexible cords that carry muscle forces to other parts of the body are called tendons. Any flexible connector, such as a string, rope, chain, wire, or cable, can exert pull only parallel to its length; so, a force carried by a flexible connector is a tension with a direction parallel to...
Stress: General Loading Conditions
To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
Factors Affecting Perception
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
An illustrative example of a perceptual set is the scenario where an airline pilot told...


