Table 3.
Content of fatty acids in SP.
| Fatty Acids | Notation | A | B | C | D |
|---|---|---|---|---|---|
| M ± Ue | M ± Ue | M ± Ue | M ± Ue | ||
| Lauric acid | C12:0 | 0.06 ± 0.01 | 0.05 ± 0.01 | 0.06 ± 0.01 | 0.04 ± 0.01 |
| Myristic acid | C14:0 | 0.18 ± 0.01 | 0.15 ± 0.01 | 0.14 ± 0.01 | 0.16 ± 0.01 |
| Myristoleic acid | C14:1 | 0.03 ± 0.01 | 0.02 ± 0.01 | 0.03 ± 0.01 | 0.00 ± 0.00 |
| Pentadecyclic acid | C15:0 | 0.07 ± 0.02 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.04 ± 0.01 |
| Pentadecanoic acid | C15:1 | 0.07 ± 0.02 | 0.08 ± 0.02 | 0.07 ± 0.02 | 0.08 ± 0.02 |
| Palmitic acid | C16:0 | 24.45 ± 2.38 | 23.34 ± 2.38 | 21.76 ± 2.38 | 22.07 ± 2.38 |
| Palmitoleic acid | C16:1 | 1.56 ± 0.32 | 1.39 ± 0.32 | 1.14 ± 0.32 | 1.14 ± 0.32 |
| Margaric acid | C17:0 | 0.16 ± 0.01 | 0.14 ± 0.01 | 0.17 ± 0.01 | 0.13 ± 0.01 |
| Heptadecenoic acid | C17:1 | 0.04 ± 0.02 | 0.03 ± 0.02 | 0.03 ± 0.02 | 0.03 ± 0.02 |
| Stearic acid | C18:0 | 4.35 ± 0.15 | 4.47 ± 0.15 | 5.01 ± 0.15 | 4.21 ± 0.15 |
| Oleic acid | C18:1 | 31.17 ± 2.44 | 31.75 ± 2.44 | 32.40 ± 2.44 | 25.80 ± 2.44 |
| Linoleic acid | C18:2(n-6) | 4.64 ± 0.29 | 5.11 ± 0.29 | 6.29 ± 0.29 | 7.50 ± 0.29 |
| Arachidic acid | C20:0 | 0.16 ± 0.02 | 0.17 ± 0.02 | 0.19 ± 0.02 | 0.19 ± 0.02 |
| Eicosenoic acid | C20:1 | 0.02 ± 0.01 | 0.02 ± 0.01 | 0.04 ± 0.01 | 0.04 ± 0.01 |
| Linolenic acid | C18:3(n-3) | 32.68 ± 0.26 | 32.88 ± 0.26 | 32.25 ± 0.26 | 38.18 ± 0.26 |
| Behenic acid | C22:0 | 0.01 ± 0.02 | 0.01 ± 0.02 | 0.01 ± 0.02 | 0.01 ± 0.02 |
| Erucic acid | C22:1 | 0.08 ± 0.01 | 0.08 ± 0.08 | 0.11 ± 0.02 | 0.12 ± 0.02 |
| Lignoceric acid | C24:0 | 0.03 ± 0.08 | 0.02 ± 0.01 | 0.05 ± 0.08 | 0.02 ± 0.08 |
| Oleic acid, trans isomer | C18:1t | 0.04 ± 0.06 | 0.03 ± 0.06 | 0.04 ± 0.06 | 0.03 ± 0.06 |
| Linoleic acids, trans isomer | C18:2t | 0.03 ± 0.06 | 0.07 ± 0.01 | <0.01 | <0.01 |
| Linolenic acids, trans isomer | C18:3t | 0.25 ± 0.10 | 0.22 ± 0.24 | 0.20 ± 0.10 | 0.24 ± 0.10 |
| SFA/UFA ratio | 0.42 | 0.40 | 0.38 | 0.37 | |
| ω6/ω3 ratio | 0.14 | 0.16 | 0.19 | 0.20 | |
Results represent the average value of two independent measurements analyses, as % area, (after repeatability check) ± uncertainty of measurement (Ue). A = 3–4 weeks old pupae (freshly produced pupae); B = 3–4 months old pupae; C = one year and three months old pupae; D = pupae residuals from reeling process; M = mean; Ue = expanded uncertainty associated with a test result based on a coverage factor K = 2 and a level of confidence of 95%.