Ability of black soldier fly larvae to bioaccumulate tocopherols from different substrates and measurement of larval tocopherol bioavailability in vitro - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Journal of Insects as Food and Feed Year : 2023

Ability of black soldier fly larvae to bioaccumulate tocopherols from different substrates and measurement of larval tocopherol bioavailability in vitro

Abstract

Edible insects are an emerging approach to provide sustainable proteins in feed. Black soldier fly larvae (BSFL) can also bioaccumulate micronutrients from various substrates. The purpose of this study was to assess whether BSFL can bioaccumulate significant concentrations of bioavailable α and ɣ-tocopherol (TOC) from vitamin E (VE) rich substrates. BSFL were reared on VE rich substrates, e.g. wheat germ oil, bran, etc. α and γ-tocopherol were quantified in larvae and substrates by HPLC. VE bioaccessibility was estimated using an in vitro model of digestion. Uptake efficiency of micellarized VE by intestinal cell was estimated using Caco-2 cells. BSFL were at least as rich in α-TOC, but not ɣ-TOC, as the substrates they were reared on BSFL. VE bioaccessibility was almost always significantly lower in BSFL than in corresponding substrates. Conversely, VE uptake efficiency was either not significantly different or significantly higher in BSFLs than in substrates. Thus, VE enrichment of BSFL from VE rich substrates, in particular co-products such as brans and oil cakes, could be an innovative way to recycle VE and to provide significant amounts of sustainable VE in farm animal feed.
Fichier principal
Vignette du fichier
manuscript_reviewed_nonapparent corrections -.pdf (865.07 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-04332134 , version 1 (02-04-2024)

Identifiers

Cite

L. Morand-Laffargue, D. Vairo, C. Halimi, E. Chiarello, B. Creton, et al.. Ability of black soldier fly larvae to bioaccumulate tocopherols from different substrates and measurement of larval tocopherol bioavailability in vitro. Journal of Insects as Food and Feed, 2023, pp.1-13. ⟨10.1163/23524588-20230183B⟩. ⟨hal-04332134⟩
12 View
3 Download

Altmetric

Share

Gmail Facebook X LinkedIn More