Biotechnology for Biofuels and Bioproducts

Table 1 Fatty acid composition of P. tricornutum following N deprivation

From: Molecular and cellular mechanisms of neutral lipid accumulation in diatom following nitrogen deprivation

Fatty acids	Control		-N
Fatty acids	Total FA%	DW%	Total FA%	DW%
C14:0 (myristic)	5.31	0.22	6.27	0.12
C16:0 (palmitic)	15.89	0.66	25.87	0.49
C18:0 (stearic)	2.67	0.11	2.37	0.04
Sum SFA	23.87	0.99	34.51	0.65
C16:1 (palmitoleic)	23.91	0.99	42.55	0.80
C18:1 (oleic)	2.45	0.10	NT	ND
Sum MUFA	26.36	1.09	42.55	0.80
C18:2 (linoleic)	NT	NT	5.22	0.10
C18:3 (linolenic)	2.69	0.11	1.25	0.02
C20:5 (eicosapentaenoic)	20.33	0.84	11.67	0.22
C22:6 (docosahexaenoic)	1.07	0.04	0.64	0.01
Sum PUFA	24.09	1.00	18.78	0.35
other FA	10.88	0.45	2.71	0.05
Total FA identified	85.20	3.53	98.55	1.85
Unsaturation ratios:
C 16 unsat./C16:0	1.50	0.06	1.64	0.03
C18 unsat./C18.0	1.93	0.08	2.73	0.05
Total unsat./total sat.	2.11	0.09	1.78	0.03
Lipid content (DW)		24.13		53.33

Abbreviations: FA, Fatty acid; DW, Dry weight; SFA, Saturated fatty acid; MUFA, Monounsaturated fatty acid; PUFA, Polyunsaturated fatty acid; ND, not detected.

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