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. 2023 Feb 24:17:100610.
doi: 10.1016/j.fochx.2023.100610. eCollection 2023 Mar 30.

Changes in the lipid profiles of hairtail (Trichiurus lepturus) muscle during air-drying via liquid chromatography-mass spectrometry analysis

Yueqin Liao  1 , Yixuan Ding  1 , Qi Du  1 , Yingru Wu  1 , Huimin Lin  1   2 , Soottawat Benjakul  3 , Bin Zhang  1   2
Affiliations

Changes in the lipid profiles of hairtail (Trichiurus lepturus) muscle during air-drying via liquid chromatography-mass spectrometry analysis

Yueqin Liao et al. Food Chem X. .

Abstract

Chemical and liquid chromatography-mass spectrometry (LC/MS)-based lipidomics analyses were performed to explore the alterations in lipid profiles in the hairtail muscle during air-drying. The peroxide value (POV) and carbonyl group value (CGV) in the air-dried hairtail (ADH) significantly increased with air-drying time. Lipidomics results revealed 1,326 lipids, which were grouped into 33 lipid categories, including 422 triglycerides (TGs), 170 phosphatidylcholines (PCs), 110 phosphatidylethanolamines (PEs), among others. In addition, ADH contained 131 and 201 differentially abundant lipids (DALs) at high and low levels, respectively. Among them, DALs, TGs, PCs, LPCs, and LPEs could be used to distinguish between ADH and FH samples. The apparent alterations in ADH and FH samples were attributed to lipid decomposition, side-chain modifications during oxidation, or oxygen- and salt-promoted lipid oxidation. Thus, this study provides a more comprehensive understanding of hairtail lipid profiles before and after air-drying which can be used as a guide for hairtail products.

Keywords: Air-dried hairtail; Chemical properties; Lipid component; Lipidomics; Oxidation.

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Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Figures

None
Graphical abstract
Fig. 1
Fig. 1
Changes in the POVs and CGVs of hairtail muscle during 5 d of air-drying. Inset photographs are the dried hairtail samples. Different letters in the same line indicate significant differences at P < 0.05.
Fig. 2
Fig. 2
Classification and composition of lipid profiles (1,236 species) detected in the ADH and FH samples.
Fig. 3
Fig. 3
PCA, PLS-DA, and permutation score plots of PLS-DA resulted from the ADH and FH samples detected via LC-MS-based lipidomics analysis. (A, C, and E) positive ion mode and (B, D, and F) negative ion mode.
Fig. 4
Fig. 4
Volcano plot of lipid profiles identified in the ADH and FH samples. Green and red dots represent the DALs accumulated at low and high abundance levels, respectively. Blue dots represent lipids that were not significantly different between the two samples. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
Fig. 5
Fig. 5
Hierarchical cluster, heat-map, and VIP values of the DALs (top 50 species; as representatives) identified in the ADH and FH samples. VIP score was based on the PLS-DA model. Heat-map with red or green color indicates high or low abundance of the DALs between the ADH and FH samples. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
Fig. 6
Fig. 6
Box plots analysis illustrating the abundance differences of the DALs (Top 10 species; as representatives) identified between the ADH and FH samples.
Supplementary Fig. S1
Supplementary Fig. S1
Composition and number of the DALs (332 species) in the ADH and FH samples.
Supplementary Fig. S2
Supplementary Fig. S2
Hierarchical cluster and heat-map analyses of the DALs (332 species) between the ADH and FH samples identified by LC-MS/MS analysis.
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