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Table 4 Impact of Spray drying conditions on alpha-linolenic fatty acids retention in designer egg dried powder at different days and storage intervals

From: Fatty acids characterization and oxidative stability of spray dried designer egg powder

Spray dryer process run

Independent variables

ALA (mg/50 g egg)

Inlet air temperature (°C)

Feed flow rate (mL/hr)

Atomization speed (rpm)

Outlet temperature (°C)

0 Day

Storage at Temperature 4 °C

Storage at Temperature 25 °C

30 Days

60 Days

30 Days

60 Days

1

160 (− 1)

300 (0)

16,000 (−1)

70 (0)

127.57 ± 0.46ab

126.22 ± 0.41b

123.05 ± 0.44cd

123.12 ± 0.42cd

118.52 ± 0.41ef

2

180 (0)

200 (−1)

20,000 (0)

60 (−1)

118.81 ± 0.70ef

117.34 ± 0.62f

114.33 ± 0.61gh

114.25 ± 0.62gh

109.55 ± 0.67j

3

180 (0)

300 (0)

16,000 (−1)

80 (+ 1)

116.58 ± 0.47fg

117.19 ± 0.44f

114.14 ± 0.47gh

112.37 ± 0.41hi

107.53 ± 0.44k

4

180 (0)

400 (+ 1)

20,000 (0)

60 (−1)

125.67 ± 0.54bc

124.05 ± 0.44c

121.76 ± 0.62d

121.53 ± 0.42d

116.43 ± 0.31fg

5

180 (0)

200 (−1)

16,000 (− 1)

70 (0)

118.30 ± 0.19ef

117.04 ± 0.13f

114.75 ± 0.15gh

114.21 ± 0.14gh

109.51 ± 0.16j

6

160 (−1)

300 (0)

24,000 (+ 1)

70 (0)

114.75 ± 0.61gh

113.66 ± 0.51h

110.45 ± 0.34ij

110.55 ± 0.43ij

105.87 ± 0.75l

7(C1)

180 (0)

300 (0)

20,000 (0)

70 (0)

114.82 ± 0.70gh

113.55 ± 0.45h

110.76 ± 0.61ij

110.72 ± 0.67ij

105.01 ± 0.52l

8(C2)

180 (0)

300 (0)

20,000 (0)

70 (0)

114.68 ± 0.54gh

113.35 ± 0.24h

110.41 ± 0.32ij

110.42 ± 0.31ij

105.42 ± 0.34l

9

180 (0)

300 (0)

24,000 (+ 1)

60 (−1)

115.97 ± 0.87g

114.72 ± 0.61gh

111.95 ± 0.82i

111.32 ± 0.24i

106.45 ± 0.35kl

10

200 (+ 1)

300 (0)

24,000 (+ 1)

70 (0)

101.19 ± 0.12n

100.15 ± 0.09no

97.15 ± 0.06p

97.55 ± 0.08p

92.68 ± 0.13s

11(C3)

180 (0)

300 (0)

20,000 (0)

70 (0)

114.76 ± 0.69gh

113.65 ± 0.53h

110.22 ± 0.54ij

110.01 ± 0.51ij

105.03 ± 0.42l

12(C4)

180 (0)

300 (0)

20,000 (0)

70 (0)

114.75 ± 0.63gh

113.64 ± 0.57h

110.33 ± 0.64ij

110.43 ± 0.37ij

105.56 ± 0.46l

13

180 (0)

200 (−1)

20,000 (0)

80 (+ 1)

106.03 ± 0.31kl

105.44 ± 0.32l

102.55 ± 0.40mn

102.21 ± 0.22mn

97.56 ± 0.42p

14

200 (+ 1)

400 (+ 1)

20,000 (0)

70 (0)

111.19 ± 0.49i

110.05 ± 0.43ij

107.61 ± 0.53k

107.31 ± 0.28k

102.61 ± 0.52mn

15

160 (−1)

400 (+ 1)

20,000 (0)

70 (0)

124.61 ± 0.54c

123.55 ± 0.41cd

120.75 ± 0.65de

120.62 ± 0.56de

115.45 ± 0.38g

16

180 (0)

400 (+ 1)

20,000 (0)

80 (+ 1)

113.95 ± 0.84h

112.65 ± 0.54hi

109.74 ± 0.61j

109.32 ± 0.57j

104.33 ± 0.67lm

17

160 (−1)

300 (0)

20,000 (0)

80 (+ 1)

115.57 ± 0.43g

114.12 ± 0.35gh

111.32 ± 0.28i

111.46 ± 0.37i

106.78 ± 0.63kl

18

200 (+ 1)

300 (0)

20,000 (0)

80 (+ 1)

102.68 ± 0.63mn

101.62 ± 0.52n

98.33 ± 0.29op

98.63 ± 0.50op

93.98 ± 0.47r

19

160 (−1)

200 (−1)

20,000 (0)

70 (0)

117.87 ± 0.71f

116.11 ± 0.64fg

113.55 ± 0.42h

113.15 ± 0.38h

108.09 ± 0.42jk

20

180 (0)

400 (+ 1)

16,000 (−1)

70 (0)

125.70 ± 0.62bc

124.62 ± 0.51c

121.32 ± 0.46d

121.43 ± 0.32d

116.35 ± 0.27fg

21

180 (0)

300 (0)

24,000 (+ 1)

80 (+ 1)

103.92 ± 0.74m

102.01 ± 0.61mn

99.73 ± 0.66o

99.59 ± 0.46o

94.67 ± 0.54qr

22

180 (0)

300 (0)

16,000 (−1)

60 (− 1)

128.37 ± 0.28a

127.32 ± 0.27ab

124.43 ± 0.32c

124.43 ± 0.31c

119.87 ± 0.41e

23

180 (0)

400 (+ 1)

24,000 (+ 1)

70 (0)

112.25 ± 0.72hi

111.95 ± 0.84i

108.11 ± 0.65jk

108.55 ± 0.47jk

103.34 ± 0.59m

24

160 (−1)

300 (0)

20,000 (0)

60 (−1)

127.47 ± 0.38ab

126.33 ± 0.24b

123.64 ± 0.45cd

123.78 ± 0.33cd

118.75 ± 0.42ef

25(C5)

180 (0)

300 (0)

20,000 (0)

70 (0)

114.13 ± 0.20gh

113.01 ± 0.24h

110.01 ± 0.23ij

110.54 ± 0.37ij

105.34 ± 0.29l

26

200 (+ 1)

300 (0)

16,000 (−1)

70 (0)

114.88 ± 0.51gh

113.22 ± 0.44h

110.21 ± 0.33ij

110.43 ± 0.36ij

105.33 ± 0.21l

27

180 (0)

200 (−1)

24,000 (+ 1)

70 (0)

105.01 ± 0.22l

104.00 ± 0.21lm

101.04 ± 0.32n

101.34 ± 0.29n

96.34 ± 0.23pq

28

200 (+ 1)

200 (−1)

20,000 (0)

70 (0)

104.82 ± 0.56lm

103.54 ± 0.47m

100.23 ± 0.51no

100.32 ± 0.57no

95.96 ± 0.63q

29

200 (+ 1)

300 (0)

20,000 (0)

60 (−1)

114.19 ± 0.12gh

113.12 ± 0.15h

110.21 ± 0.16ij

110.65 ± 0.25ij

105.33 ± 0.29l

  1. C1,C2,C3,C4,C5represent spraying drying process at center points
  2. Experimental model = Box-Behnken design
  3. Total number of spray drying treatments = 29
  4. No of replicates = 03
  5. a-svalues with similar letters show homogenous group within row and column (p > 0.05)