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Changes in chemical and microbiological quality of semi-processed black soldier fly (Hermetia illucens L.) larval meal during storage

dc.contributor.authorKamau, E.
dc.contributor.authorMutungi, C.
dc.contributor.authorKinyuru, J.
dc.contributor.authorImathiu, S.
dc.contributor.authorAffognon, H.
dc.contributor.authorEkesi, S.
dc.contributor.authorNakimbugwe, D.
dc.contributor.authorFiaboe, K.
dc.date.accessioned2020-06-29T08:18:39Z
dc.date.available2020-06-29T08:18:39Z
dc.date.issued2020-04-17
dc.identifier.citationKamau, E., Mutungi, C., Kinyuru, J., Imathiu, S., Affognon, H., Ekesi, S., ... & Fiaboe, K. (2020). Changes in chemical and microbiological quality of semi-processed black soldier fly (Hermetia illucens L.) larval meal during storage. Journal of Insects as Food and Feed, 1-12.
dc.identifier.issn2352-4588
dc.identifier.urihttps://hdl.handle.net/20.500.12478/6883
dc.description.abstractEdible insects are receiving attention as a protein source in the food and feed sector. However, successful commercialisation requires mass production matched with appropriate processing and storage techniques. The quality of dried and pulverised black soldier fly larvae stored in woven polypropylene (PP) sacks, polyethylene (PE) bags and plastic containers with screw lid (PL) in ambient and refrigerated environments was monitored over six months. Chemical indicators (oxidation, fatty acid profile), microbiological parameters (total viable counts, yeast and moulds, Enterobacteriaceae, presumptive coliforms, Salmonella) and colour change were examined. Temperature and relative humidity of the storage environments were monitored. In the ambient environment (temperature: 23.6±2.7 °C; relative humidity: 57.6±7.0%), chemical deterioration progressed 1.5 and 1.2 times faster in PP and PE, respectively, compared to PL. Refrigeration (temperature: 5.4±1.1 °C; relative humidity: 97±5.7%) exacerbated spoilage in the PP due to permeation of moisture through the woven strands, but slowed chemical deterioration by factors of 3.3 (PL) and 2.8 (PE). Likewise, based on the average counts of Enterobacteriaceae and yeast and moulds, microbiological deterioration progressed 2.1 and 1.4 times faster in the PP and PE, respectively, while refrigeration retarded build-up of microbial loads by factors of 1.3-9.6. The presence of Salmonella spp. in the experimental product indicates that due attention must be given to adequacy of processing and handling procedures for dried black soldier fly meal.
dc.description.sponsorshipInternational Development Research Centre
dc.description.sponsorshipAustralia Centre for International Agricultural Research
dc.language.isoen
dc.subjectInsects as Food
dc.subjectEntomophagy
dc.subjectProcessing
dc.subjectPackaging
dc.subjectKeeping Quality
dc.subjectEdible Insects
dc.subjectShelf Life
dc.titleChanges in chemical and microbiological quality of semi-processed black soldier fly (Hermetia illucens L.) larval meal during storage
dc.typeJournal Article
cg.contributor.crpMaize
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationJomo Kenyatta University of Agriculture and Technology
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationWest and Central African Council for Agricultural Research for Development
cg.contributor.affiliationInternational Centre of Insect Physiology and Ecology
cg.contributor.affiliationMakerere University
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryKenya
cg.coverage.hubEastern Africa Hub
cg.researchthemeNatural Resource Management
cg.researchthemeSocial Science and Agribusiness
cg.identifier.bibtexciteidKAMAU:2020
cg.isijournalISI Journal
cg.authorship.typesNon-IITA in developed country
cg.iitasubjectAflatoxin
cg.iitasubjectAgribusiness
cg.iitasubjectAgronomy
cg.iitasubjectFood Science
cg.iitasubjectFood Security
cg.iitasubjectFood Systems
cg.iitasubjectMaize
cg.iitasubjectNatural Resource Management
cg.journalJournal of Insects as Food and Feed
cg.accessibilitystatusLimited Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCopyrighted; all rights reserved
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.3920/JIFF2019.0043


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