Fragment detection of Coleopteran and Triatomine insects in experimentally contaminated acai pulp and sugarcane juice

Rev Soc Bras Med Trop. 2019 Dec 20:53:e20190119. doi: 10.1590/0037-8682-0119-2019. eCollection 2019.

Abstract

Introduction: Oral transmission of acute Chagas disease is an emerging public health concern. This study aimed to detect insect fragments in experimentally contaminated food, by comparing triatomines with other insects.

Methods: Food samples were experimentally contaminated with insects, processed to recover their fragments by light filth, and analyzed by microscopy and Polymerase Chain Reaction (PCR).

Results: Morphological differences between coleopteran and triatomine insects were observed in microscopic images. PCR was efficient in amplifying Triatominae DNA in the experimentally contaminated food.

Conclusions: This methodology could be utilized by food analysts to identify possible insect contamination in food samples.

Publication types

  • Comparative Study

MeSH terms

  • Animals
  • Chagas Disease / transmission
  • Coleoptera / classification*
  • Food Parasitology*
  • Fruit and Vegetable Juices / parasitology*
  • Humans
  • Insect Vectors / classification*
  • Polymerase Chain Reaction
  • Saccharum / parasitology*
  • Triatominae / classification*