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Mineral analysis reveals extreme manganese concentrations in wild harvested and commercially available edible termites

Verspoor, Rudi L. and Soglo, Murielle and Adeoti, Razack and Djouaka, Rousseau and Edwards, Sam and Fristedt, Rikard and Langton, Maud and Moriana, Rosana and Osborne, Matthew and Parr, Catherine L. and Powell, Kathryn and Hurst, Gregory D. D. and Landberg, Rikard (2020). Mineral analysis reveals extreme manganese concentrations in wild harvested and commercially available edible termites. Scientific Reports. 10 , 6146 , 1-9
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Abstract

Termites are widely used as a food resource, particularly in Africa and Asia. Markets for insects as food are also expanding worldwide. To inform the development of insect-based foods, we analysed selected minerals (Fe-Mn-Zn-Cu-Mg) in wild-harvested and commercially available termites. Mineral values were compared to selected commercially available insects. Alate termites, of the genera Macrotermes and Odontotermes, showed remarkably high manganese (Mn) content (292-515mg/100gdw), roughly 50-100 times the concentrations detected in other insects. Other mineral elements occur at moderate concentrations in all insects examined. On further examination, the Mn is located primarily in the abdomens of the Macrotermes subhyalinus; with scanning electron microscopy revealing small spherical structures highly enriched for Mn. We identify the fungus comb, of Macrotermes subhyanus, as a potential biological source of the high Mn concentrations. Consuming even small quantities of termite alates could exceed current upper recommended intakes for Mn in both adults and children. Given the widespread use of termites as food, a better understanding the sources, distribution and bio-availability of these high Mn concentrations in termite alates is needed.

Authors/Creators:Verspoor, Rudi L. and Soglo, Murielle and Adeoti, Razack and Djouaka, Rousseau and Edwards, Sam and Fristedt, Rikard and Langton, Maud and Moriana, Rosana and Osborne, Matthew and Parr, Catherine L. and Powell, Kathryn and Hurst, Gregory D. D. and Landberg, Rikard
Title:Mineral analysis reveals extreme manganese concentrations in wild harvested and commercially available edible termites
Year of publishing :2020
Volume:10
Article number:6146
Number of Pages:9
Publisher:Nature Publishing Group
ISSN:2045-2322
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Food Science
Keywords:edible termites, mineral analysis
URN:NBN:urn:nbn:se:slu:epsilon-p-105714
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-105714
Additional ID:
Type of IDID
DOI10.1038/s41598-020-63157-7
Web of Science (WoS)000528012400027
ID Code:17102
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Molecular Sciences
Deposited By: SLUpub Connector
Deposited On:22 Jun 2020 11:07
Metadata Last Modified:22 Aug 2020 22:49

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