Table 2.

The retention times of the six most important chromatographic peaks in HPLC and their corresponding MS² mass spectra inference information.

Peak a	RT (min)	MS2 Mass Spectrum	[M − H]−	Molecular Formula	Proposed Compound
1	10.29	Figure 2B	301.2167	C20H30O2	EPA
2	11.26	Figure 2C	277.2168	C18H30O2	ALA
3	12.19	Figure 2D	327.2279	C22H32O2	DHA
4	13.91	Figure 2E	303.2325	C20H32O2	ARA
5	15.66	Figure 2F	279.2287	C18H32O2	LA
6	22.53	Figure 2G	281.2446	C18H34O2	OA

^a The number of chromatographic peak in HPLC chromatogram (Figure 1C); RT: the retention time of chromatographic peaks in HPLC; EPA: eicosapentaenoic acid; ALA: α-linolenic acid; DHA: docosahexaenoic acid; ARA: arachidonic acid; LA: linoleic acid; OA: oleic acid.