The occurrence of arthropods in processed rice products in Malaysia

<正>Objective:To determine distribution of arthropods in processed rice products such as rice flour and rice cereal-based infant food.Methods:Random samples of rice flour and rice cereal-based infant food purchased from commercial outlets were examined for the presence of arthropods usi...

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Bibliographic Details
Published in:Asian Pacific journal of tropical medicine 2010-08, Vol.3 (7), p.552-554
Main Authors: Mariana, A, Heah, SK, Wong, AL, Ho, TM
Format: Article
Language:English
Subjects:
Anaphylaxis
Arthropoda
Arthropods
Atopy
Flour
Food
Infants
Infestation
Mites
Oribatida
Oryza sativa
Processed
Processed rice products
products
rice
Sitophilus granarius
Sitophilus oryzae
Tarsonemus
Tin
Tydeidae
Tyrophagus putrescentiae
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Summary:<正>Objective:To determine distribution of arthropods in processed rice products such as rice flour and rice cereal-based infant food.Methods:Random samples of rice flour and rice cereal-based infant food purchased from commercial outlets were examined for the presence of arthropods using a modified Berlese Tullgren Funnel Method.Mites were mounted prior to identification and weevils were directly identified.Results:For non-expired products, infestation was found in 6.7%of rice flour and none was found in rice cereal-based infant food samples.The arthropods found in the flour samples were Cheyletus spp.,Suidasia pontifica(S. pontifica),Tarsonemus spp.,Tyrophagus putrescentiae(T.putrescentiae),Sitophilus granarius(S. granarius) and Sitophilus oryzae(S.oryzae).Others which cannot be identified were Oribatid and Prostigmatid mites.The most common mites in rice flour were Tarsonemus spp.(69.1%),followed by S.pontifica(18.2%).For expired products,only one sample of rice cereal-based infant food was infested and the infestation was by mites of the family Tydeidae.Conclusions:This study demonstrates the presence of 4 allergenic species of S.pontifica,T.putrescentiae,S.granarius and S.oryzae in rice flour.These arthropods can contribute to the incidence of anaphylaxis upon consumption by atopic individuals.There was no infestation of arthropods in rice cereal-based infant food surveyed except for an expired product in a moderate rusty tin container.
ISSN:1995-7645
2352-4146
DOI:10.1016/S1995-7645(10)60133-2