研究不和脂肪酸微乳液的抗氧化特性
Fan Yang1, Mingjun Tang1, Kun Wang1
1College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China.
Journal of microencapsulation
|July 2, 2025
概括
一种新的微乳液系统显著提高了不和脂肪酸 (UFA) 的抗氧化能力和保质期. 这种增强的UFAs微乳液 (UFAs-M) 显示出对热和紫外线的稳定性有所改善.
科学领域:
- 材料科学 材料科学 材料科学
- 食品化学 食品化学
- 制药科学 制药科学
背景情况:
- 不和脂肪酸 (UFA) 具有宝贵的抗氧化特性,但容易降解.
- 提高UFA的稳定性和生物可用性对于其有效应用至关重要.
- 微乳液技术提供了一种有前途的方法来稳定和释放脂性化合物.
研究的目的:
- 为不和脂肪酸 (UFA) 开发一个微乳液系统 (UFA-M).
- 评估准备好的UFA-M的储存稳定性和抗氧化特性.
- 评估温度和紫外线暴露等环境因素对UFA-M的影响.
主要方法:
- 使用直接乳化来制备UFAs微乳液 (UFAs-M).
- 使用激光衍射测量了粒子大小,泽塔潜力和多分散度指数 (PDI).
- 使用DPPH测试来确定抗氧化活性和激素清除能力.
- 封装效率和药物负载被量化.
主要成果:
- 在90天的时间里,UFAs-M表现出一致的粒子大小 (49.1-57.4nm) 和负泽塔电位 (-11.79到-13.13mV).
- 获得了高封装效率 (91.5-98.4%) 和药物负载 (0.862-0.984%) 的结果.
- 与自由UFAs (65.33%) 相比,UFAs-M表现出明显更高的DPPH激素清除活性 (82.8%).
- 在热应力和紫外线照射下,UFAs-M显示出增强的抗氧化性能.
结论:
- 开发的微乳液系统有效地增强了不和脂肪酸的抗氧化能力.
- UFAs-M 提供了更好的存储稳定性和保护免受热和紫外线损坏的保护.
- 这种微乳液配方对需要稳定UFA的实际应用具有重大潜力.
相关概念视频
Radical Autoxidation
2.2K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
2.2K
Structure of Lipids
90.7K
Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic...
90.7K
Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids
6.1K
Diols are compounds with two hydroxyl groups. In addition to syn dihydroxylation, diols can also be synthesized through the process of anti dihydroxylation. The process involves treating an alkene with a peroxycarboxylic acid to form an epoxide. Epoxides are highly strained three-membered rings with oxygen and two carbons occupying the corners of an equilateral triangle. This step is followed by ring-opening of the epoxide in the presence of an aqueous acid to give a trans diol.
6.1K
Oxidation of Phenols to Quinones
3.4K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
3.4K
What are Lipids?
204.8K
Overview
204.8K
Colloids
17.9K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
17.9K


