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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Agric+Food+Chem
2017 ; 65
(11
): 2275-2278
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Nitrogen-to-Protein Conversion Factors for Three Edible Insects: Tenebrio
molitor, Alphitobius diaperinus, and Hermetia illucens
#MMPMID28252948
Janssen RH
; Vincken JP
; van den Broek LA
; Fogliano V
; Lakemond CM
J Agric Food Chem
2017[Mar]; 65
(11
): 2275-2278
PMID28252948
show ga
Insects are considered a nutritionally valuable source of alternative proteins,
and their efficient protein extraction is a prerequisite for large-scale use. The
protein content is usually calculated from total nitrogen using the
nitrogen-to-protein conversion factor (Kp) of 6.25. This factor overestimates the
protein content, due to the presence of nonprotein nitrogen in insects. In this
paper, a specific Kp of 4.76 ± 0.09 was calculated for larvae from Tenebrio
molitor, Alphitobius diaperinus, and Hermetia illucens, using amino acid
analysis. After protein extraction and purification, a Kp factor of 5.60 ± 0.39
was found for the larvae of three insect species studied. We propose to adopt
these Kp values for determining protein content of insects to avoid
overestimation of the protein content.