GC-FID and NMR Spectroscopic Studies on Gamma Irradiated Walnut Lipids
Table 3
Fatty acids composition % of (Total Fatty Acids) TFA in total lipids of non-irradiated and irradiated walnuts packaged in modified atmosphere.
Fatty acids
0 kGy
5 kGy
10 kGy
13 kGy
C12:0
0.03 ± 0.00a
0.03 ± 0.00a
0.03 ± 0.00a
0.03 ± 0.00a
C14:0
0.04 ± 0.00a
0.04 ± 0.00a
0.04 ± 0.00a
0.04 ± 0.00a
C14:1
0.02 ± 0.00a
0.02 ± 0.00a
0.02 ± 0.00a
0.02 ± 0.00a
iso-C15:0
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
C15:0
0.35 ± 0.01a
0.34 ± 0.01a
0.35 ± 0.01a
0.39 ± 0.01b
C15:1ω-5
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
C16:0
6.76 ± 0.07a
7.02 ± 0.12b
7.22 ± 0.06b
7.45 ± 0.07c
iso-C16:0
0.06 ± 0.00a
0.07 ± 0.01a
0.07 ± 0.01a
0.08 ± 0.00b
C16:1ω-7
0.08 ± 0.01a
0.09 ± 0.00a
0.09 ± 0.00a
0.09 ± 0.01a
iso-C17:0
—
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
anteiso-C17:0
0.01 ± 0.00a
0.02 ± 0.00b
0.01 ± 0.00a
0.02 ± 0.00b
cyclo-C17:0
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
C17:0
0.03 ± 0.00a
0.05 ± 0.00b
0.03 ± 0.00a
0.04 ± 0.01a
C17:1ω-7
0.02 ± 0.00a
0.02 ± 0.00a
0.02 ± 0.00a
0.02 ± 0.00a
C18:0
2.30 ± 0.03a
2.56 ± 0.03b
2.98 ± 0.03c
3.54 ± 0.03d
C18:1ω-9
19.77 ± 0.07a
19.59 ± 0.14ab
19.53 ± 0.03b
19.76 ± 0.06a
C18:1ω-7
0.52 ± 0.01a
0.53 ± 0.01a
0.51 ± 0.01a
0.58 ± 0.00b
C18:2ω-6
59.71 ± 0.16a
59.04 ± 0.11b
58.77 ± 0.05c
58.10 ± 0.05d
C18:3ω-6
0.07 ± 0.00a
0.08 ± 0.01a
0.06 ± 0.00b
0.07 ± 0.00a
C18:3ω-3
9.52 ± 0.02a
9.80 ± 0.09b
9.58 ± 0.04a
9.07 ± 0.05c
C18:4ω-3
0.06 ± 0.00a
0.06 ± 0.00a
0.05 ± 0.00b
0.06 ± 0.00a
C19:0
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
C20:0
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
C20:1ω-9
0.17 ± 0.00a
0.16 ± 0.01a
0.18 ± 0.01ab
0.19 ± 0.01b
C20:3ω-6
0.02 ± 0.00a
0.02 ± 0.00a
0.02 ± 0.00a
0.02 ± 0.01a
C20:4ω-6
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
C20:5ω-3
0.02 ± 0.00a
0.02 ± 0.00a
0.01 ± 0.00b
0.01 ± 0.00b
C22:4ω-6
0.02 ± 0.00a
0.02 ± 0.00a
0.02 ± 0.00a
0.01 ± 0.00b
C22:5ω-6
0.03 ± 0.00a
0.02 ± 0.00a
0.02 ± 0.00a
0.02 ± 0.00a
C22:5ω-3
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
0.01 ± 0.00a
C22:6ω-3
0.32 ± 0.01a
0.31 ± 0.01a
0.32 ± 0.01a
0.30 ± 0.01a
SFA
9.62 ± 0.10a
10.19 ± 0.15b
10.76 ± 0.03c
11.65 ± 0.08d
MUFA
20.59 ± 0.05ac
20.42 ± 0.13ab
20.36 ± 0.03b
20.67 ± 0.05c
PUFA
69.79 ± 0.15a
69.40 ± 0.09b
68.86 ± 0.05c
67.68 ± 0.05d
UFA
90.38 ± 0.10a
89.81 ± 0.15b
89.22 ± 0.03c
88.35 ± 0.08d
Σω-6
59.86 ± 0.17a
59.20 ± 0.11b
58.89 ± 0.05c
58.23 ± 0.05d
Σω-3
9.93 ± 0.02a
10.20 ± 0.09b
9.97 ± 0.05a
9.45 ± 0.02c
ω-6/ω-3
6.03 ± 0.03a
5.80 ± 0.06b
5.91 ± 0.03c
6.16 ± 0.02d
MUFA/SFA
2.14 ± 0.02a
2.00 ± 0.05b
1.89 ± 0.03c
1.77 ± 0.02d
PUFA/MUFA
3.39 ± 0.02a
3.40 ± 0.02a
3.38 ± 0.01a
3.27 ± 0.02b
PUFA/SFA
7.26 ± 0.09a
6.81 ± 0.10b
6.39 ± 0.02c
5.81 ± 0.04d
C18:1ω-9/C18:2ω-6
0.33 ± 0.00a
0.33 ± 0.00a
0.33 ± 0.00a
0.34 ± 0.01a
C16:0/C18:0
2.94 ± 0.01a
2.73 ± 0.02b
2.42 ± 0.04c
2.11 ± 0.03d
Values are the mean of three determinations from two individual experiments ( = 6). Means in the same row bearing different letters differ significantly ().