OMEGA-3 Fatty Acids Retention, Oxidative Quality, and Sensoric Acceptability of Spray-Dried Flaxseed Oil

Table 2

Impact of spray-drying conditions on alpha-linolenic fatty acids retention in flaxseed oil dried powder at different days and storage intervals.

Spray-dryer process run	Independent variables				Alpha-linolenic fatty acids (% of total fatty acids)
	Inlet air temperature (°C)	Feed flow rate (mL/hr)	Atomization speed (rpm)	Outlet temperature (°C)	0 days	Storage at temperature 4°C		Storage at temperature 25°C
						30 days	60 days	30 days	60 days
1	140 (0)	300 (+1)	16000 (0)	60 (‒1)	54.30 ± 0.95^a	53.72 ± 0.92^ab	51.58 ± 0.72^bc	51.32 ± 0.65^bc	47.62 ± 0.55^de
2	140 (0)	250 (0)	12000 (‒1)	60 (‒1)	54.82 ± 0.90^a	53.12 ± 0.89^ab	52.95 ± 0.75^b	52.52 ± 0.69^b	47.84 ± 0.67^de
3	140 (0)	200 (‒1)	16000 (0)	80 (+1)	51.35 ± 0.85^bc	50.78 ± 0.79^c	49.84 ± 0.69^cd	48.24 ± 0.60^d	47.56 ± 0.59^de
4	120 (‒1)	200 (‒1)	16000 (0)	70 (0)	53.71 ± 0.79^ab	52.94 ± 0.68^b	51.34 ± 0.59^bc	51.12 ± 0.52^bc	48.11 ± 0.51^d
5	160 (+1)	300 (+1)	16000 (0)	70 (0)	51.92 ± 0.84^bc	50.84 ± 0.80^c	49.92 ± 0.75^cd	48.98 ± 0.68^d	47.86 ± 0.59^de
6 (C1)	140 (0)	250 (0)	16000 (0)	70 (0)	53.04 ± 0.91^ab	52.35 ± 0.81^b	51.54 ± 0.75^bc	51.35 ± 0.61^bc	47.52.±0.69^de
7	120 (‒1)	250 (0)	16000 (0)	80 (+1)	51.44 ± 0.84^bc	50.89 ± 0.76^c	49.74 ± 0.68^cd	49.25 ± 0.59^cd	46.38 ± 0.54^e
8 (C2)	140 (0)	250 (0)	16000 (0)	70 (0)	53.08 ± 0.74^ab	52.35 ± 0.68^b	51.45 ± 0.59^bc	50.92 ± 0.57^c	47.32 ± 0.51^de
9	140 (0)	200 (‒1)	16000 (0)	60 (‒1)	55.07 ± 0.96^aa	54.72 ± 0.86^a	53.95 ± 0.76^ab	52.52 ± 0.67^b	48.15 ± 0.63^d
10	160 (+1)	250 (0)	16000 (0)	60 (‒1)	54.20 ± 0.81^a	53.15 ± 0.75^ab	52.19 ± 0.65^b	51.65 ± 0.58^bc	47.98 ± 0.52^de
11	160 (+1)	250 (0)	12000 (‒1)	70 (0)	52.40 ± 0.71^b	51.65 ± 0.65^bc	50.22 ± 0.58^c	49.81 ± 0.56^cd	46.85 ± 0.49^e
12	120 (‒1)	250 (0)	12000 (‒1)	70 (0)	53.50 ± 0.86^ab	52.64 ± 0.82^b	51.33 ± 0.79^bc	51.10 ± 0.68^bc	47.46 ± 0.57^de
13	140 (0)	200 (‒1)	20000 (+1)	70 (0)	53.10 ± 0.92^ab	50.84 ± 0.81^c	50.45 ± 0.74^c	50.11 ± 0.61^c	48.16 ± 0.55^d
14	120 (‒1)	250 (0)	16000 (0)	60 (‒1)	55.01 ± 0.76^aa	53.65 ± 0.75^ab	52.61 ± 0.67^b	52.31 ± 0.58^b	49.61 ± 0.50^cd
15 (C3)	140 (0)	250 (0)	16000 (0)	70 (0)	53.16 ± 0.82^ab	52.75 ± 0.71^b	51.75 ± 0.65^bc	51.22 ± 0.59^bc	48.45 ± 0.48^d
16	120 (‒1)	300 (+1)	16000 (0)	70 (0)	53.11 ± 0.79^ab	52.75 ± 0.68^b	51.74 ± 0.57^bc	51.12 ± 0.54^bc	47.33 ± 0.45^de
17	140 (0)	250 (0)	12000 (‒1)	80 (+1)	51.15 ± 0.92^bc	50.22 ± 0.82^c	49.32 ± 0.77^cd	48.96 ± 0.69^d	46.78 ± 0.56^e
18 (C4)	140 (0)	250 (0)	16000 (0)	70 (0)	53.18 ± 0.84^ab	52.62 ± 0.74^b	51.73 ± 0.69^bc	51.23 ± 0.55^bc	48.98 ± 0.49^d
19	140 (0)	300 (+1)	16000 (0)	80 (+1)	50.60 ± 0.74^c	49.91 ± 0.71^cd	48.55 ± 0.65^d	47.95 ± 0.57^de	46.51 ± 0.52^e
20	160 (+1)	250 (0)	16000 (0)	80 (+1)	50.31 ± 0.93^c	50.02 ± 0.88^c	49.32 ± 0.78^cd	48.63 ± 0.64^d	46.25 ± 0.56^e
21	140 (0)	300 (+1)	12000 (‒1)	70 (0)	52.70 ± 0.90^b	51.91 ± 0.85^bc	50.73 ± 0.75^c	49.99 ± 0.62^cd	47.67 ± 0.59^de
22	120 (‒1)	250 (0)	20000 (+1)	70 (0)	53.21 ± 0.83^ab	52.52 ± 0.78^b	51.43 ± 0.66^bc	50.43 ± 0.58^c	48.57 ± 0.48^d
23	140 (0)	250 (0)	20000 (+1)	80 (+1)	50.80 ± 0.78^c	49.95 ± 0.75^cd	48.11 ± 0.68^d	47.65 ± 0.60^de	46.74 ± 0.55^e
24	140 (0)	300 (+1)	20000 (+1)	70 (0)	52.40 ± 0.86^b	51.33 ± 0.77^bc	50.64 ± 0.70^c	50.18 ± 0.59^c	47.45 ± 0.51^de
25	140 (0)	250 (0)	20000 (+1)	60 (‒1)	54.50 ± 0.96^a	53.51 ± 0.87^ab	52.01 ± 0.81^b	51.84 ± 0.77^bc	48.34 ± 0.68^d
26	160 (+1)	250 (0)	20000 (+1)	70 (0)	52.10 ± 0.91^b	51.22 ± 0.86^bc	50.21 ± 0.79^c	49.73 ± 0.66^cd	46.83 ± 0.57^e
27	160 (+1)	200 (‒1)	16000 (0)	70 (0)	52.60 ± 0.84^b	51.00 ± 0.74^bc	50.04 ± 0.64^c	49.64 ± 0.60^cd	47.14 ± 0.51^de
28	140 (0)	200 (‒1)	12000 (‒1)	70 (0)	53.41 ± 0.77^ab	52.54 ± 0.69^b	51.23 ± 0.61^bc	50.92 ± 0.57^c	46.96 ± 0.49^e
29 (C5)	140 (0)	250 (0)	16000 (0)	70 (0)	53.08 ± 0.81^ab	50.91 ± 0.73^c	49.21 ± 0.63^cd	48.75 ± 0.61^d	47.33 ± 0.55^de
30 (C6)	140 (0)	250 (0)	16000 (0)	70 (0)	53.24 ± 0.93^ab	52.65 ± 0.88^b	51.54 ± 0.78^bc	51.11 ± 0.64^bc	47.84 ± 0.53^de

^{C1,C2,C3,C4,C5,C6}Spray-drying process at center points. Experimental model = Box–Behnken design. Total number of spray-drying treatments = 30. Number of replicates = 03. ^a-eValues with similar letters show homogenous groups within the row and column ().