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Insect fatty acids: A comparison of lipids from three Orthopterans and Tenebrio molitor L. larvae
Aman Paul,Michel Frederich,Rudy Caparros Megido,Taofic Alabi,PriyankaMalik,Roel Uyttenbroeck,Frederic Francis,Christophe Blecker,Eric Haubruge,Georges Lognay,Sabine Danthine 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.2
In order to explore some potential insect sources of food lipids, the lipid compositions of three Orthopterans (Acheta domesticus, Conocephalus discolor and Chorthippus parallelus) were analyzed and compared with those of Tenebrio molitor larvae. A. domesticus, Co. discolor, Ch. parallelus and T. molitor larvae were found to contain approximately 15%, 13%, 10% and 32% lipids on dryweight, respectively. The lipids fromthree Orthopterans contain much higheramounts of essential fatty acids than those of T.molitor larvae. The twoOrthopterans of the suborder Ensifera i.e., A. domesticus and Co. discolor contain linoleic acid inmajor quantities,while Ch. parallelus of the suborder Caelifera, contain α-linolenic acid in major quantities. The consumption of linoleic and α-linolenic fatty acid is linked with numerous health promoting effects. The factors that contribute to differences in fatty acid profiles of these insects are being discussed. At last the nutritional parameters including polyunsaturated to saturated and omega 6 to omega 3 fatty acid ratios of these insect lipids are also being discussed to understand the potential role of these lipids in human nutrition.
Aman Paul,Michel Frederich,Roel Uyttenbroeck,PriyankaMalik,Sandrino Filocco,Aurore Richel,Stephanie Heuskin,Taofic Alabi,Rudy Caparros Megido,Thierry Franck,Jerome Bindelle,Philippe Maesen,Frederic Fr 한국응용곤충학회 2016 Journal of Asia-Pacific Entomology Vol.19 No.4
Insects, particularly those belonging to the family Acrididae (grasshoppers), are commonly consumed as human food in many parts of the world. Grasshoppers of the species Chorthippus parallelus are abundantly found throughout Europe. However, these insects were not consumed by Europeans till now, but could possibly be used as human food, which is why we investigated their chemical composition. We found that they contain high level of proteins (69%), with an excellent amino acid profile and protein digestibility (97%). Furthermore, specimens of C. parallelus have an interesting fatty acids profile and minerals composition. Preliminary toxicity assessment indicates that these insects do not exhibit toxicity towards neutrophil cells (white blood cells). These data suggest that C. parallelus could be considered for human consumption. Rearing trials done during the study show that commercial rearing could be developed to produce sufficient biomass for sustaining human consumption.