| Autor: |
Larouche J; Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada. Jennifer.Larouche.1@ulaval.ca., Deschamps MH; Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada. Marie-Helene.Deschamps.1@ulaval.ca., Saucier L; Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada. Linda.Saucier@fsaa.ulaval.ca., Lebeuf Y; Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada. Yolaine.Lebeuf@fsaa.ulaval.ca., Doyen A; Département des Sciences des Aliments, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada. Alain.Doyen@fsaa.ulaval.ca., Vandenberg GW; Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada. Grant.Vandenberg@fsaa.ulaval.ca. |
| Jazyk: |
angličtina |
| Zdroj: |
Animals : an open access journal from MDPI [Animals (Basel)] 2019 Apr 21; Vol. 9 (4). Date of Electronic Publication: 2019 Apr 21. |
| DOI: |
10.3390/ani9040182 |
| Abstrakt: |
Black soldier fly (BSF) larvae represent a promising alternative ingredient for animal feed. Post-production processing can, however, affect their quality. This project aimed to optimize larval killing by comparing the effects on the nutritional and microbiological quality of 10 methods, i.e., blanching (B = 40 s), desiccation (D = 60 °C, 30 min), freezing (F20 = -20 °C, 1 h; F40 = -40 °C, 1 h; N = liquid nitrogen, 40 s), high hydrostatic pressure (HHP = 3 min, 600 MPa), grinding (G = 2 min) and asphyxiation (CO 2 = 120 h; N 2 = 144 h; vacuum conditioning, V = 120 h). Some methods affected the pH (B, asphyxiation), total moisture (B, asphyxiation and D) and ash contents (B, p < 0.001). The lipid content (asphyxiation) and their oxidation levels (B, asphyxiation and D) were also affected ( p < 0.001). Killing methods altered the larvae colour during freeze-drying and in the final product. Blanching appears to be the most appropriate strategy since it minimizes lipid oxidation (primary = 4.6 ± 0.7 mg cumen hydroperoxide (CHP) equivalents/kg; secondary = 1.0 ± 0.1 mg malondialdehyde/kg), reduces microbial contamination and initiates dehydration (water content = 78.1 ± 1.0%). We propose herein, an optimized protocol to kill BSF that meet the Canadian regulatory requirements of the insect production and processing industry. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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