Exploring the Lipids Involved in the Formation of Characteristic Lactones in Japanese Black Cattle.
Japanese black cattle
gas chromatography-olfactometry
lipidomics
triacylglyceride
wagyu beef aroma
Journal
Metabolites
ISSN: 2218-1989
Titre abrégé: Metabolites
Pays: Switzerland
ID NLM: 101578790
Informations de publication
Date de publication:
29 Mar 2021
29 Mar 2021
Historique:
received:
08
02
2021
revised:
25
03
2021
accepted:
25
03
2021
entrez:
3
4
2021
pubmed:
4
4
2021
medline:
4
4
2021
Statut:
epublish
Résumé
The meat from Japanese Black cattle (Japanese Wagyu) is finely marbled and exhibits a rich and sweet aroma known as Wagyu beef aroma. To clarify the key metabolites involved in the aroma, we analyzed the correlation between lactone and lipid composition in Japanese Black cattle. Using gas chromatography-olfactometry, we identified 39 characteristic odorants of the intermuscular fat. Seven characteristic lactones considered to be involved in Wagyu beef aroma were quantified and compared in the marbled area and intermuscular fat using a stable isotope dilution assay. Among them, γ-hexalactone was the only lactone whose level was significantly higher in the marbled area. To explore the lipid species involved in lactone formation, we analyzed samples with different aroma characteristics. Liquid chromatography-mass spectrometry revealed eight lipid classes and showed significant differences in triacylglycerides (TAGs). To determine the molecular species of TAGs, we performed high-performance liquid chromatography analysis and identified 14 TAG species. However, these analyses showed that seven lactones had a low correlation with the TAGs. However, γ-hexalactone showed a positive correlation with linoleic acid. This study suggests that lipid composition affects the characteristic lactone profile involved in the Wagyu beef aroma.
Identifiants
pubmed: 33805322
pii: metabo11040203
doi: 10.3390/metabo11040203
pmc: PMC8067244
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : a project for developing technology to create new businesses for domestic livestock and their products
ID : 2018-2020
Organisme : a grant from the Livestock Promotional Subsidy from the Japan Racing Association
ID : 2020-55
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