Table 1 Proximate analysis and pH value of wet feeds and proximate analysis of yellow mealworm larvae biomass.

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

Wet feed composition

Wet feed

DM1

CA2

EE2

CP2

aNDF2

NFC2

pH

Agar (Control)

2.2 ± 0.0a

1.4 ± 0.0a

0.0 ± 0.0a

0.0 ± 0.1a

18.1 ± 2.6ab

80.2 ± 1.6a

7.3 ± 0.0a

Vegetable mix

5.6 ± 0.1b

11.9 ± 0.1b

2.4 ± 0.3b

13.4 ± 0.0b

20.9 ± 0.2ab

51.4 ± 0.8b

5.1 ± 0.0b

Potato cuttings

29.9 ± 1.3c

2.9 ± 0.1a

0.1 ± 0.1c

4.9 ± 0.1c

13.8 ± 1.0b

78.3 ± 1.6a

4.7 ± 0.0c

Fermented chicory roots

13.4 ± 0.3d

47.1 ± 1.6c

1.1 ± 0.1d

4.4 ± 0.2d

15.5 ± 0.1b

31.9 ± 1.5b

3.7 ± 0.0d

Horticultural foliage

7.5 ± 0.2e

35.8 ± 0.4d

1.2 ± 0.0e

15.0 ± 0.2e

21.2 ± 0.3a

26.8 ± 1.0c

8.8 ± 0.0e

Mealworm biomass composition

Wet feed fed

DM1

CA2

EE2

CP2

Chitin2

NFC2

 

Agar (Control)

28.3 ± 2.3a

4.7 ± 0.6a

18.6 ± 1.9a

51.4 ± 1.6a

7.6 ± 0.5a

17.7 ± 2.1a

 

Vegetable mix

29.4 ± 1.9ab

5.0 ± 0.5a

19.9 ± 2.9a

48.8 ± 2.4a

6.9 ± 0.4ab

19.4 ± 2.8a

 

Potato cuttings

35.3 ± 0.7b

3.7 ± 0.3a

35.5 ± 1.6b

40.7 ± 0.5b

6.1 ± 0.2b

14.0 ± 1.8b

 

Fermented chicory roots

30.8 ± 1.6ab

6.8 ± 0.9b

20.0 ± 0.2a

48.2 ± 1.0a

7.8 ± 0.1a

17.2 ± 1.9ab

 

Horticultural foliage

28.9 ± 2.7a

4.7 ± 0.2a

19.1 ± 1.5a

52.3 ± 0.7a

7.7 ± 0.7a

16.1 ± 2.4ab

 
  1. With dry matter content (DM), crude ash content (CA), fat content or ether extract (EE), crude protein content (CP), amylase-treated neutral detergent fiber content (aNDF), non-fiber carbohydrate content (NFC), chitin and pH. Values are reported as mean ± standard deviation (n = 3). 1g/100 g fresh matter, 2g/100 g dry matter. a–d, values not connected by the same letter are significantly different.