Seasonal Variation in Fatty Acid and Amino Acid Composition of the Patagonian Marine Polychaete Abarenicola pusilla and Its By-Products

Table 3

Fatty acid content (mg·g⁻¹ sample) in the press liquid. Each value represents the average value (n = 3) and the standard error.

FAME	Spring	Summer	Autumn	Winter
	Press liquid (mg FAME g^−1)
15 : 0, pentadecanoic acid	0.29 ± 0.06	0.25 ± 0.12	0.14 ± 0.00	0.15 ± 0.02
16 : 0, palmitic acid	2.23 ± 0.31	1.63 ± 0.84	0.67 ± 0.01	1.37 ± 0.39
16 : 1n − 7, palmitoleic acid	1.33 ± 0.19	1.05 ± 0.53	0.35 ± 0.02	0.66 ± 0.18
17 : 0, heptadecanoic acid	0.30 ± 0.05	0.30 ± 0.05	0.11 ± 0.0q	0.11 ± 0.14
17 : 1n − 7, heptadecenoic acid	0.18 ± 0.03	0.15 ± 0.07	0.08 ± 0.01	0.07 ± 0.02
18 : 0, stearic acid	0.40 ± 0.04	0.42 ± 0.26	0.13 ± 0.00	0.25 ± 0.04
18 : 1n − 9, oleic acid	0.77 ± 0.11	0.77 ± 0.52	0.23 ± 0.02	0.81 ± 0.13
20 : 1n − 9, eicosaenoic acid	0.71 ± 0.12	0.53 ± 0.22	0.22 ± 0.01	0.21 ± 0.06
18 : 3n − 3, α-linolenic acid	0.26 ± 0.04	0.11 ± 0.05	0.06 ± 0.01	0.12 ± 0.07
18 : 2n − 6, linoleic acid	0.34 ± 0.00	0.22 ± 0.10	0.09 ± 0.01	0.23 ± 0.16
20 : 4n − 6, arachidonic acid (ARA)	0.60 ± 0.08	0.49 ± 0.24	0.11 ± 0.02	0.06 ± 0.06
20 : 5n − 3, eicosapentaenoic acid (EPA)	0.45 ± 0.04	0.57 ± 0.27	0.03 ± 0.01	0.17 ± 0.17
22 : 6n − 3, docosahexaenoic acid (DHA)	0.10 ± 0.03	0.10 ± 0.05	0.01 ± 0.01	0.08 ± 0.08
Other SFA	0.53 ± 0.05	0.15 ± 0.05	0.50 ± 0.06	1.64 ± 1.30
Other MUFA	0.54 ± 0.02	0.48 ± 0.25	0.26 ± 0.02	0.21 ± 0.12
Other PUFA	0.07 ± 0.05	0.09 ± 0.04	0.06 ± 0.01	0.07 ± 0.07
FAME ratios
EPA/ARA	0.76 ± 0.16^b	1.18 ± 0.02^b	0.26 ± 0.04^b	3.09 ± 0.00^c
DHA/EPA	0.21 ± 0.04	0.17 ± 0.01	0.25 ± 0.25	0.44 ± 0.000
n − 3/n – 6	0.79 ± 0.04	0.98 ± 0.00	0.59 ± 0.02	0.92 ± 0.21