Nitrogen-to-Protein Conversion Factors for Three Edible Insects: Tenebrio molitor, Alphitobius diaperinus, and Hermetia illucens

[Image: see text] 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....

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Autores principales: Janssen, Renske H., Vincken, Jean-Paul, van den Broek, Lambertus A. M., Fogliano, Vincenzo, Lakemond, Catriona M. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2017
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5364430/
https://www.ncbi.nlm.nih.gov/pubmed/28252948
http://dx.doi.org/10.1021/acs.jafc.7b00471
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author Janssen, Renske H.
Vincken, Jean-Paul
van den Broek, Lambertus A. M.
Fogliano, Vincenzo
Lakemond, Catriona M. M.
author_facet Janssen, Renske H.
Vincken, Jean-Paul
van den Broek, Lambertus A. M.
Fogliano, Vincenzo
Lakemond, Catriona M. M.
author_sort Janssen, Renske H.
collection PubMed
description [Image: see text] 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.
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spelling pubmed-53644302017-03-27 Nitrogen-to-Protein Conversion Factors for Three Edible Insects: Tenebrio molitor, Alphitobius diaperinus, and Hermetia illucens Janssen, Renske H. Vincken, Jean-Paul van den Broek, Lambertus A. M. Fogliano, Vincenzo Lakemond, Catriona M. M. J Agric Food Chem [Image: see text] 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. American Chemical Society 2017-03-02 2017-03-22 /pmc/articles/PMC5364430/ /pubmed/28252948 http://dx.doi.org/10.1021/acs.jafc.7b00471 Text en Copyright © 2017 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Janssen, Renske H.
Vincken, Jean-Paul
van den Broek, Lambertus A. M.
Fogliano, Vincenzo
Lakemond, Catriona M. M.
Nitrogen-to-Protein Conversion Factors for Three Edible Insects: Tenebrio molitor, Alphitobius diaperinus, and Hermetia illucens
title Nitrogen-to-Protein Conversion Factors for Three Edible Insects: Tenebrio molitor, Alphitobius diaperinus, and Hermetia illucens
title_full Nitrogen-to-Protein Conversion Factors for Three Edible Insects: Tenebrio molitor, Alphitobius diaperinus, and Hermetia illucens
title_fullStr Nitrogen-to-Protein Conversion Factors for Three Edible Insects: Tenebrio molitor, Alphitobius diaperinus, and Hermetia illucens
title_full_unstemmed Nitrogen-to-Protein Conversion Factors for Three Edible Insects: Tenebrio molitor, Alphitobius diaperinus, and Hermetia illucens
title_short Nitrogen-to-Protein Conversion Factors for Three Edible Insects: Tenebrio molitor, Alphitobius diaperinus, and Hermetia illucens
title_sort nitrogen-to-protein conversion factors for three edible insects: tenebrio molitor, alphitobius diaperinus, and hermetia illucens
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5364430/
https://www.ncbi.nlm.nih.gov/pubmed/28252948
http://dx.doi.org/10.1021/acs.jafc.7b00471
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