Table 5 Fatty acid profiles of mealworm larvae reared on feed supplemented with sidestreams.

From: The nutritional profile, mineral content and heavy metal uptake of yellow mealworm reared with supplementation of agricultural sidestreams

Fatty Acid

Control

Vegetable mix

Potato cuttings

Fermented chicory roots

Horticultural foliage

C14:0 (myristic acid)

1.65 ± 0.18a

2.29 ± 0.08c

2.95 ± 0.06d

1.95 ± 0.05ab

2.06 ± 0.07bc

C15:0 (pentadecanoic acid)

0.18 ± 0.03a

0.18 ± 0.01a

0.13 ± 0.02c

0.20 ± 0.01a

0.25 ± 0.01b

C16:0 (palmitic acid)

17.96 ± 2.31a

18.44 ± 0.63a

22.73 ± 0.14b

19.91 ± 0.08a

19.33 ± 0.91a

C16:1 (palmitoleic acid)

0.48 ± 0.08a

0.57 ± 0.04a

1.34 ± 0.07b

0.67 ± 0.02a

0.50 ± 0.04a

C16:2 (Hexadecadienoic acid)

0.31 ± 0.09a

0.34 ± 0.01a

0.20 ± 0.01b

0.25 ± 0.01ab

0.34 ± 0.03a

C17:0 (heptadecanoic acid)

0.22 ± 0.09a

0.21 ± 0.01a

0.10 ± 0.00b

0.21 ± 0.02a

0.26 ± 0.01a

C18:0 (stearic acid)

2.78 ± 0.62a

2.55 ± 0.12a

2.25 ± 1.95a

2.67 ± 0.12a

2.87 ± 0.04a

C18:1 (oleic acid)

27.06 ± 2.54a

29.92 ± 0.87a

43.19 ± 2.86b

32.91 ± 0.59a

30.52 ± 0.69a

C18:2 (linoleic acid)

39.89 ± 5.90a

43.80 ± 1.10a

26.29 ± 1.16b

39.83 ± 0.69a

42.14 ± 1.55a

C18:3 (linolenic acid)

1.21 ± 0.20a

1.60 ± 0.17b

0.76 ± 0.07c

1.28 ± 0.04a

1.62 ± 0.17b

C20:0 (arachidic acid)

0.11 ± 0.01a

0.10 ± 0.01ab

0.08 ± 0.01b

0.10 ± 0.01ab

0.12 ± 0.02a

SFA

22.91 ± 0.98a

23.77 ± 0.93a

28.23 ± 1.47b

25.05 ± 0.53a

24.89 ± 1.03a

MUFA

27.53 ± 1.62a

30.50 ± 1.61a

44.53 ± 2.55b

33.59 ± 1.16a

31.02 ± 1.65a

PUFA

41.41 ± 2.49a

45.74 ± 2.06a

27.24 ± 2.60b

41.37 ± 1.60a

44.09 ± 2.21a

  1. Values are reported as mean ± standard deviation (n = 3) and expressed % fatty acid (group) of 100% crude fat. Fatty acids are expressed as “Cx:y” in which x equals the number of carbons and y equals the amount of unsaturated bounds. Fatty acids are grouped as saturated fatty acids (SFA), mono-unsaturated fatty acids (MUFA) and poly-unsaturated fatty acids (PUFA) a–c, values not denoted by the same letter are significantly different.