Table 4. Fatty acid profile of white-spotted flower chafer (Protaetia brevitarsis) larvae produced from commercial insect farms in Korea

Fatty acid components (%) Farm A1) Farm B Farm C Farm D Farm E p-value
Myristic acid C14:0 0.64±0.03d 0.70±0.04cd 0.73±0.03bc 0.88±0.06a 0.79±0.05b <0.001
Pentadecanoic acid C15:0 0.55±0.03b 0.69±0.03ab 0.80±0.02a 0.22±0.19c 0.21±0.04c <0.001
Palmitic acid C16:0 14.07±0.35d 16.42±0.30b 15.14±0.14c 16.16±0.54b 19.46±0.64a <0.001
Heptadecanoic acid C17:0 0.47±0.03bc 0.57±0.18b 0.91±0.03a 0.29±0.25bc 0.21±0.18c 0.002
Stearic acid C18:0 2.73±0.02a 2.26±0.08b 1.65±0.04d 1.76±0.02c 2.73±0.48a <0.001
Arachidic acid C20:0 0.34±0.30 0.16±0.28 ND2) 0.27±0.24 0.60±0.01 NS3)
Myristoleic acid C14:1 2.52±0.13a 1.71±0.08b 1.18±0.04c 0.25±0.22e 0.67±0.03d <0.001
cis-10-Pentadecanoic acid C15:1 0.69±0.02b 0.81±0.02b 1.14±0.02a 0.19±0.17c 0.29±0.01c <0.001
Palmitoleic acid C16:1 8.07±0.26cd 9.40±0.23bc 10.95±0.25ab 11.93±0.44a 6.63±2.32d 0.001
cis-10-Heptadecanoic acid C17:1 0.48±0.01 0.45±0.39 0.31±0.27 ND 0.57±0.02 NS
Oleic acid C18:1 58.69±0.52a 58.71±1.43a 51.55±0.80b 51.71±0.91b 59.48±1.45a <0.001
Linoleic acid C18:2 7.29±0.05c 5.38±0.02d 12.85±0.30a 12.19±0.21b 5.70±0.15d <0.001
α-Linolenic acid C18:3n-3 0.35±0.30c 0.53±0.46bc 0.98±0.02ab 1.05±0.01a 0.56±0.01bc <0.001
cis-11-Eicosenoic acid C20:1 ND ND ND 0.38±0.32a ND 0.034
cis-11,14,17-Eicosatrienoic acid C20:3n-3 0.84±0.01a 0.17±0.30b ND ND ND <0.001
cis-13,16-Docosadienoic acid C22:2 0.17±0.29 0.18±0.31 0.20±0.35 0.48±0.41 0.54±0.01 NS
cis-4,7,10,13,16,19-Docosahexaenoic acid+cis-15-tetracosenoic acid C22:6+C24:1 2.10±0.12 1.86±0.21 1.61±0.52 2.25±0.31 1.58±0.09 NS
Saturated fatty acids (SFA) 18.80 20.80 19.23 19.58 24.00
Unsaturated fatty acids (UFA) 81.20 79.20 80.77 80.42 76.00
SFA/UFA 0.23 0.26 0.24 0.24 0.32
All values are presented as mean±SD of triplicate (n=3).
Farm A, Protaetia brevitarsis larvae fed with oak only; Farm B, Protaetia brevitarsis larvae fed with oak and scrub; Farm C, Protaetia brevitarsis larvae fed with commercial feed; Farm D, Protaetia brevitarsis larvae fed with private fermented feed; Farm E, Protaetia brevitarsis larvae fed with by-product from mushroom compost.
ND, not-detected.
NS, non-significance (p≥0.05).
Means with different superscripts indicate significant difference within a row (p<0.05).