Table 3.

The $2_{III}^{5-2}$ fractional factorial design for five factors with their observed responses.

DOE	Extraction Variables					Extraction Yield (Relative % to Maximum Yield)
	x 1	x 2	x 3	x 4	x 5	PEN	HEX	PYR	2AP	2PF	OCT	OCA	NON
1	1	1	1	1	1	22.78	3.58	3.80	18.44	21.70	3.89	16.77	7.11
2	−1	−1	1	1	−1	6.05	1.36	1.66	100.00	11.28	9.80	100.00	100.00
3	−1	−1	−1	1	1	30.78	5.79	6.39	22.01	4.85	13.46	61.75	69.87
4	−1	1	1	−1	−1	21.72	1.63	2.04	62.20	9.55	13.73	59.42	22.31
5	−1	1	−1	−1	1	100.00	100.00	100.00	13.40	100.00	100.00	47.52	42.92
6	1	−1	−1	−1	−1	7.55	1.55	1.71	3.43	0.65	1.38	4.61	3.96
7	0	0	0	0	0	10.99	8.33	8.90	54.26	16.14	25.63	32.39	43.71
8	1	1	−1	1	−1	28.99	11.26	11.63	2.88	15.60	6.99	5.10	3.50
9	1	−1	1	−1	1	3.16	0.59	0.73	63.69	3.99	2.24	17.26	25.84
10	0	0	0	0	0	12.66	13.01	8.85	51.67	14.53	23.84	26.91	41.25
11	0	0	0	0	0	15.25	12.51	11.49	48.62	19.49	30.29	31.88	50.60

Abbreviations: Design of experiment (DOE), pentanal (PEN), hexanal (HEX), pyridine (PYR), 2-acetyl-1-pyrroline (2AP), 2-pentyl-furan (2PF), 1-octen-3-ol (OCT), (E)-2-octenal (OCA), and 2,4-nonadienal (NON).