Nutrient composition of the long-horned grasshopper Ruspolia differens Serville: Effect of swarming season and sourcing geographical area.
Geoffrey Ssepuuya, Ruben Smets, Dorothy Nakimbugwe, Mik Van Der Borght, Johan Claes
Author Information
Geoffrey Ssepuuya: KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Technology Campus Geel, Kleinhoefstraat 4, B-2440 Geel, Belgium; KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium; Department of Food Technology and Nutrition, CAES, Makerere University, P.O. Box, 7062 Kampala, Uganda. Electronic address: geoffrey.ssepuuya@kuleuven.be.
Ruben Smets: KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Technology Campus Geel, Kleinhoefstraat 4, B-2440 Geel, Belgium; KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium. Electronic address: ruben.smets@kuleuven.be.
Dorothy Nakimbugwe: Department of Food Technology and Nutrition, CAES, Makerere University, P.O. Box, 7062 Kampala, Uganda.
Mik Van Der Borght: KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Technology Campus Geel, Kleinhoefstraat 4, B-2440 Geel, Belgium; KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium. Electronic address: mik.vanderborght@kuleuven.be.
Johan Claes: KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Technology Campus Geel, Kleinhoefstraat 4, B-2440 Geel, Belgium; KU Leuven, Leuven Food Science and Nutrition Research Centre (LFoRCe), Leuven, Belgium. Electronic address: johan.claes@kuleuven.be.
This research investigates the effect of swarming season and sourcing geographical area on the nutrient composition of R. differens. On a dry matter basis, protein (34.2-45.8%) and fat (42.2-54.3%) are the major macro-nutrients. Leucine (80. 9-88.5), lysine (54.0-69.8) and valine (59.2-61.8) are the most abundant essential amino acids (EAA) (mg/g protein). Tryptophan is the most limiting EAA. Its EAA composition is like the children and adults' reference protein. Its fat is highly unsaturated (63.5-64.7). Oleic (38.4-42.7), linoleic (19.0-23.0) and palmitic (26.6-27.8) fatty acids (FA) (g/100 g total FA) are the most abundant. Geographical area significantly influences its mineral content within seasons. Season significantly influences its fat, protein, ash and mineral content but not its AAs' and FAs' content. Both factors significantly influence its vitamin B12 content (0.73-1.35 µg/100 g).
