Publication detail

Detection of selected heavy metals and micronutrients in edible insect and their dependency on the feed using XRF spectrometry

MLČEK, J. ADÁMEK, M. ADÁMKOVÁ, A. BORKOVCOVÁ, M. BEDNÁŘOVÁ, M. SKÁCEL, J.

Original Title

Detection of selected heavy metals and micronutrients in edible insect and their dependency on the feed using XRF spectrometry

English Title

Detection of selected heavy metals and micronutrients in edible insect and their dependency on the feed using XRF spectrometry

Type

journal article in Scopus

Language

en

Original Abstract

Edible insect can be a valuable source of nutrients, but also a potential source of heavy metals. Quick detection of over-limit heavy metals concentration could be a key to processing and quick distribution of edible insect products. The aim of this work was to evaluate the feed-dependent content of heavy metals in the mealworm and superworm using the X-ray fluorescence spectrometry as an easy, cheap and a timeless screening method for evaluating the content of heavy metals and microelements. Using a handheld analyser the content of Cd, Pb, Cu and Zn were detected. Both analysed species proved dependency of metal content on a feed. Detected level of Cu in mealworm was between 571 mg.kg-1 and 1768 mg.kg-1 and in superworm from 571 mg.kg-1 to 1768 mg.kg-1 based on the feed. The content of Zn was similar, between 725 mg.kg-1 and 1437 mg.kg-1 in mealworm and 555-1482 mg.kg-1 in superworm. The level of Pb was below the detection limit in all samples, thus from this point of view this food seems to be safe. On the contrary, the content of Cd in the dry matter samples was above the food limit –147 mg.kg-1 to 230 mg.kg-1. From this point of view, the samples were evaluated as unsuitable for consuming.

English abstract

Edible insect can be a valuable source of nutrients, but also a potential source of heavy metals. Quick detection of over-limit heavy metals concentration could be a key to processing and quick distribution of edible insect products. The aim of this work was to evaluate the feed-dependent content of heavy metals in the mealworm and superworm using the X-ray fluorescence spectrometry as an easy, cheap and a timeless screening method for evaluating the content of heavy metals and microelements. Using a handheld analyser the content of Cd, Pb, Cu and Zn were detected. Both analysed species proved dependency of metal content on a feed. Detected level of Cu in mealworm was between 571 mg.kg-1 and 1768 mg.kg-1 and in superworm from 571 mg.kg-1 to 1768 mg.kg-1 based on the feed. The content of Zn was similar, between 725 mg.kg-1 and 1437 mg.kg-1 in mealworm and 555-1482 mg.kg-1 in superworm. The level of Pb was below the detection limit in all samples, thus from this point of view this food seems to be safe. On the contrary, the content of Cd in the dry matter samples was above the food limit –147 mg.kg-1 to 230 mg.kg-1. From this point of view, the samples were evaluated as unsuitable for consuming.

Keywords

edible insect; mealworm; superworm; X-ray fluorescence spectrometry; heavy metal

Released

18.12.2017

Publisher

HACCP Consulting

Location

Nitrianske Hrnčiarovce

Pages from

725

Pages to

730

Pages count

6

URL

Full text in the Digital Library

BibTex


@article{BUT143640,
  author="Jiří {Mlček} and Martin {Adámek} and Anna {Adámková} and Marie {Borkovcová} and Martina {Bednářová} and Josef {Skácel}",
  title="Detection of selected heavy metals and micronutrients in edible insect and their dependency on the feed using XRF spectrometry",
  annote="Edible  insect  can  be  a  valuable  source  of  nutrients,  but  also  a  potential  source  of  heavy  metals.  Quick  detection  of  over-limit heavy metals concentration could be a key to processing and quick distribution of edible insect products. The aim of this  work  was  to  evaluate  the  feed-dependent  content  of  heavy  metals  in  the  mealworm  and  superworm  using  the  X-ray fluorescence  spectrometry  as  an  easy,  cheap  and  a  timeless  screening  method  for  evaluating  the  content  of  heavy  metals and  microelements.  Using  a  handheld  analyser  the  content  of  Cd,  Pb,  Cu  and  Zn  were  detected.  Both  analysed  species proved  dependency  of  metal  content  on  a  feed.  Detected  level  of  Cu  in  mealworm  was  between  571 mg.kg-1 and  1768 mg.kg-1 and  in  superworm  from  571 mg.kg-1 to  1768 mg.kg-1 based  on  the  feed.  The  content  of  Zn  was  similar,  between 725 mg.kg-1 and 1437 mg.kg-1 in mealworm and 555-1482 mg.kg-1 in superworm. The level of Pb was below the detection limit in all samples, thus from this point of view this food seems to be safe. On the contrary, the content of Cd in the dry matter samples was above the food limit –147 mg.kg-1 to 230 mg.kg-1. From this point of view, the samples were evaluated as unsuitable for consuming.",
  address="HACCP Consulting",
  chapter="143640",
  doi="10.5219/850",
  howpublished="online",
  institution="HACCP Consulting",
  number="1",
  volume="11",
  year="2017",
  month="december",
  pages="725--730",
  publisher="HACCP Consulting",
  type="journal article in Scopus"
}