从机械学角度来看: tert-butylhydroquinone 在储存期间如何保持食用油中的抗氧化功效?
Mengqi Xu1, Yaxing Yu2, Jun Li2
1College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China; Food Laboratory of Zhongyuan, Luohe 462300, China.
Food chemistry
|August 19, 2025
概括
特-丁基 (TBHQ) 通过其固有的分子优势和其转化产品的再生活性,在食用油中保持其抗氧化能力. 这些化合物,包括三甲基基和二甲基基,有助于在储存期间持续保护.
科学领域:
- 食品化学 食品化学
- 氧化化学 有氧化化学
- 分析化学 分析化学
背景情况:
- 合成性抗氧化剂对于防止食用油中的脂质氧化至关重要.
- 了解抗氧化剂的长期稳定性和机制,如 tert-butylhydroquinone (TBHQ),对于食品的保存至关重要.
研究的目的:
- 在储存期间全面调查食用油中TBHQ的抗氧化机制.
- 阐明TBHQ的分子优势及其转化产品在维持抗氧化活性中的作用.
主要方法:
- 对TBHQ与其他性抗氧化剂进行比较分析.
- 在激素和甘油三系统中研究三丁基 (TBBQ) 降解为TBHQ.
- 使用GC-MS和NMR识别和验证转化产物 (MAHQ,2,2-二甲基-2,3-二博-5-ol) 的情况.
主要成果:
- TBHQ比其他合成酸抗氧化剂具有分子优势.
- TBHQ的主要转化产品,TBBQ,可以减少到TBHQ,再生抗氧化能力.
- 另外两种类产品,MAHQ和一种单类化合物被确定,MAHQ表现出显著的抗氧化活性.
结论:
- TBHQ在食用油中的持续抗氧化活性归因于其固有的特性及其转化产品的抗氧化功能.
- TBBQ的再生能力和MAHQ的活性有助于TBHQ在石油储存期间的有效性.
- 这些发现为TBHQ在食品工业中的应用提供了理论基础,以提高油的稳定性.
更多相关视频
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
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
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
Autoxidation of Ethers to Peroxides and Hydroperoxides
8.2K
Ethers represent a class of chemical compounds that become more dangerous with prolonged storage because they tend to form explosive peroxides when standing in the air. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly oxidize to form hydroperoxides and dialkyl peroxides.
8.2K
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
10.8K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
10.8K
Oxidation of Alcohols
13.5K
In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:
The process of oxidation in a chemical reaction is observed in any of the three forms:
13.5K


