Table 1 Putative identifications of identified biomarkers and the ion found to be most significant for the separation of salmon from different geographical origin in the chemometric models

From: Data fusion and multivariate analysis for food authenticity analysis

Metabolism

Ion bin category (Da)

Chemical composition

Accurate mass (Da)

Lipid identifier

Unsaturated fatty acids [FA0103]

127.1

C7H12O2

127.0759

FA 7:1

239.1

C15H28O2

239.2011

FA 15:1

277.3

C18H30O2

277.2168

FA 18:3

301.3

C20H30O2

301.2168

FA 20:5

327.3

C22H32O2

327.2324

FA 22:6

337.3

C22H42O2

337.3107

FA 22:1

Branched fatty acids [FA0102]

255.3

C16H32O2

255.2324

FA 16:0

279.3

C18H32O2

279.2330

FA 18:2

281.3

C18H34O2

281.2481

FA 18:1

309.3

C20H38O2

309.2794

FA 20:1

Primary amides

280.3

C14H23N3O3

280.1667

–

282.3

C18H37NO

282.2797

–

N-acyl amines [FA0802]

128.1

C7H15NO

128.1075

NA 7:0

222.1

C14H25NO

222.1863

NA 14:2

338.3

C20H37NO3

338.2701

NA 20:2

Diacylglycerophosphoglycerols

745.5

C40H75O10P

745.5020

PG 34:2

Diacylglycerophosphocholines

790.5

C45H78NO8P

790.5387

PC 37:6

Triacylglycerols

909.5

C60H94O6

909.6972

TG 57:11