Trimethylamine N-Oxide in Aquatic Foods
Xiaoyue Li1, Chengcheng Wang1, Teruyoshi Yanagita2
1SKL of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China.
Journal of Agricultural and Food Chemistry
|June 17, 2024
Summary
Trimethylamine N-oxide (TMAO) is vital for marine life and seafood quality. While linked to chronic diseases, seafood
Area of Science:
- Marine Biology and Biochemistry
- Food Science and Technology
- Human Health and Nutrition
Background:
- Trimethylamine N-oxide (TMAO) is a key nonprotein nitrogen compound abundant in seafood.
- TMAO plays crucial roles in marine organism osmoregulation and is important for aquaculture and seafood preservation.
- Emerging research suggests TMAO may promote chronic diseases, necessitating a balanced understanding of its effects.
Purpose of the Study:
- To comprehensively review the multifaceted roles of TMAO in aquatic products.
- To evaluate the physiological functions, flavor, and quality impacts of TMAO in marine organisms and seafood.
- To analyze the conversion of TMAO precursors, its influence on human health, and interactions with other seafood components.
Main Methods:
- Literature review synthesizing existing research on TMAO.
- Analysis of physiological roles in marine organisms.
- Examination of TMAO's impact on seafood quality and human health.
Main Results:
- TMAO is essential for marine life and seafood preservation.
- Seafood consumption increases circulating TMAO levels.
- Dietary seafood offers health benefits and potential nutraceuticals that may counteract TMAO's adverse effects.
Conclusions:
- A balanced perspective on TMAO's positive and negative attributes is crucial.
- Understanding TMAO's dual role is key for maximizing its benefits while mitigating risks.
- Dietary seafood provides health advantages that likely outweigh potential TMAO-related concerns.
More Related Videos
Related Concept Videos
2° Amines to N-Nitrosamines: Reaction with NaNO2
4.2K
Secondary amines react with nitrous acid to form N-nitrosamines, as depicted in Figure 1. Nitrous acid, a weak and unstable acid, is formed in situ from an aqueous solution of sodium nitrite and strong acids, such as hydrochloric acid or sulfuric acid, in cold conditions. In the presence of an acid, the nitrous acid gets protonated. The subsequent loss of water results in the formation of the electrophile known as nitrosonium ion.
4.2K
Physical Properties of Amines
3.1K
Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
3.1K
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview
3.3K
Nitrous acid and nitric acids are two types of acids containing nitrogen, among which nitrous acid is weaker than nitric acid. Nitrous acid with a pKa value of 3.37 ionizes in water to give a nitrite ion and the hydronium ion.
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by...
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by...
3.3K


