Effects of traditional processing techniques on the nutritional and microbiological quality of four edible insect species used for food and feed in east Africa

cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationJomo Kenyatta University of Agriculture and Technologyen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationConseil Ouest et Centre Africain pour la Recherche et le Développement Agricolesen
cg.contributor.affiliationInternational Centre of Insect Physiology and Ecologyen
cg.contributor.affiliationMakerere Universityen
cg.contributor.crpMaize
cg.contributor.donorINSFEEDen
cg.contributor.donorInternational Development Research Centreen
cg.contributor.donorAustralian Centre for International Agricultural Researchen
cg.coverage.countryKenya
cg.coverage.countryUganda
cg.coverage.iso3166-alpha2KE
cg.coverage.iso3166-alpha2UG
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.3390/foods9050574en
cg.identifier.iitathemeNATURAL RESOURCE MANAGEMENT
cg.identifier.iitathemeSOCIAL SCIENCE & AGRICUSINESS
cg.isijournalISI Journalen
cg.issn2304-8158en
cg.issue5en
cg.journalFoodsen
cg.reviewStatusPeer Reviewen
cg.subject.iitaAGRIBUSINESSen
cg.subject.iitaFOOD SECURITYen
cg.subject.iitaKNOWLEDGE MANAGEMENTen
cg.subject.iitaNATURAL RESOURCE MANAGEMENTen
cg.subject.iitaNUTRITIONen
cg.volume9en
dc.contributor.authorNyangena, D.N.en
dc.contributor.authorMutungi, C.en
dc.contributor.authorImathiu, S.en
dc.contributor.authorKinyuru, J.en
dc.contributor.authorAffognon, Hippolyte D.en
dc.contributor.authorEkesi, S.en
dc.contributor.authorNakimbugwe, D.en
dc.contributor.authorFiaboe, K.K.en
dc.date.accessioned2020-09-21T15:10:32Zen
dc.date.available2020-09-21T15:10:32Zen
dc.identifier.urihttps://hdl.handle.net/10568/109560
dc.titleEffects of traditional processing techniques on the nutritional and microbiological quality of four edible insect species used for food and feed in east Africaen
dcterms.abstractEdible insects are increasingly being considered as food and feed ingredients because of their rich nutrient content. Already, edible insect farming has taken-off in Africa, but quality and safety concerns call for simple, actionable hazard control mechanisms. We examined the effects of traditional processing techniques—boiling, toasting, solar-drying, oven-drying, boiling + oven-drying, boiling + solar-drying, toasting + oven-drying, toasting + solar-drying—on the proximate composition and microbiological quality of adult Acheta domesticus and Ruspolia differens, the prepupae of Hermetia illucens and 5th instar larvae of Spodoptera littoralis. Boiling, toasting, and drying decreased the dry matter crude fat by 0.8–51% in the order: toasting > boiling > oven-drying > solar-drying, whereas the protein contents increased by 1.2–22% following the same order. Boiling and toasting decreased aerobic mesophilic bacterial populations, lowered Staphylococcus aureus, and eliminated the yeasts and moulds, Lac+ enteric bacteria, and Salmonella. Oven-drying alone marginally lowered bacterial populations as well as yeast and moulds, whereas solar-drying alone had no effect on these parameters. Oven-drying of the boiled or toasted products increased the aerobic mesophilic bacteria counts but the products remained negative on Lac+ enteric bacteria and Salmonella. Traditional processing improves microbial safety but alters the nutritional value. Species- and treatment-specific patterns exist.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.available2020-05-04
dcterms.bibliographicCitationNyangena, D.N., Mutungi, C., Imathiu, S., Kinyuru, J., Affognon, H., Ekesi, S., ... & Fiaboe, K.K. (2020). Effects of traditional processing techniques on the nutritional and microbiological quality of four edible insect species used for food and feed in east Africa. Foods, 9(5), 1-16.en
dcterms.extent1-16en
dcterms.issued2020-05-04
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherMDPIen
dcterms.subjectentomophagyen
dcterms.subjectprocessingen
dcterms.subjectindigenous knowledgeen
dcterms.subjectfood safetyen
dcterms.subjectnutritionen
dcterms.subjecteast africaen
dcterms.subjectinsects as fooden
dcterms.subjectsolar dryingen
dcterms.subjectmicrobiological analysisen
dcterms.subjectinsect farmingen
dcterms.subjectmicrobiologyen
dcterms.subjectfood scienceen
dcterms.typeJournal Article

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