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Dietary enrichment of edible insects with omega 3 fatty acids

Insect Science 2020年第3期27卷 500-509页

作者： Dennis G.A.B.Oonincx sophie laurent Margot E.Veenenbos Joop J.A.van Loon Department of Animal Sciences Animal Nutrition GroupWageningen UniversityWageningenthe Netherlands Laboratory of Entomology Department of Plant SciencesWageningen UniversityWageningenthe Netherlands sophie laurent ON IRISFood Process EngineeringUMR CNRS 6144 GEPEANantes Cedex 3France

Edible insects are advocated as sustainable and healthy food and ***,commercially produced insects are often low in n‐3 fatty acids and have suboptimal n‐6/n‐3 ratios.A certain amount and proportion of these FAs is required to optimize human *** oil consists primarily(57%)out of alpha‐linolenic *** experiment was conducted to quantify the effect of flaxseed oil provision on fatty acid composition and to determine the quantity needed to attain a beneficial n‐6/n‐3 *** species were used in the experiment:house crickets(Acheta domesticus[L.]),lesser mealworms(Alphitobius diaperinus[Pfanzer])and black soldier flies(Hermetia illucens[L.]).These were provided with either a control diet or a diet enriched with 1%,2%,or 4%flaxseed oil during their larval/nymphal *** acid profiles of diets and insects were determined via GC‐*** three species had distinct fatty acid profiles on all four diets,but responded similarly to flaxseed oil *** each percent added to the diet,the alpha‐linolenic acid content of the insects increased by 2.3%–2.7%.Four percent addition increased the n‐3 fatty acid content 10–20 fold in the three species and thereby strongly decreased n‐6/n‐3 ratios from 18–36 to 0.8–2.4.A ratio below 5 is considered optimal for human health and was achieved by 2%flaxseed oil inclusion for house crickets and lesser mealworms,and at 1%inclusion for black soldier *** a source of n‐3 fatty acids to insect diets can thus improve the nutritional quality of insects.

关键词： Acheta domesticus Alphitobius diaperinus diet fatty acids Hermetia illucens

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