Unusual polyunsaturated fatty acids in edible marine worms identified by covalent adduct chemical ionization mass spectrometry.
Food Chem
; 463(Pt 2): 141287, 2024 Sep 13.
Article
en En
| MEDLINE
| ID: mdl-39298850
ABSTRACT
Non-traditional seafood, such as spoon worms (Urechis unicinctus) and peanut worms (Sipunculus nudus), serves as both delicacies and potential solutions to the global food insecurity crisis. Despite being consumed primarily in parts of China, Korea, and Japan, the nutritional values especially the complex fatty acid compositions of these marine worms are difficult to characterize. To overcome this obstacle, we employed covalent adduct chemical ionization (CACI) tandem mass spectrometry for the de novo identification of their unusual polyunsaturated fatty acids (PUFA). Through this method, we identified several PUFA with polymethylene-interrupted (PMI) double bond configurations, including 223(7Z,13Z,16Z), a novel PUFA derived from sciadonic acid. U. unicinctus exhibits an exceptionally low n-6/n-3 PUFA ratio of 0.15, making it a potential functional food to counterbalance the n-6/n-3 imbalance in modern diets. S. nudus boasts notably high concentrations (â¼3 %, wt/wt) of branched chain fatty acids (BCFA), exceeding typical levels found in dairy products.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Food Chem
Año:
2024
Tipo del documento:
Article
Pais de publicación:
Reino Unido