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e-ISSN 1828-1427

  

Rivista trimestrale di Sanità Pubblica Veterinaria edita dall'Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale"

A quarterly journal devoted to veterinary public health, veterinary science and medicine published by the Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise ‘G. Caporale’ in Teramo, Italy

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2007 - Volume 43 (1) January-March
   
 
Valerio Spinosi, Primula Semprini, Vincenzo Langella, Giampiero Scortichini & Silvano Calvarese  
Presence of chemical additives and microbial inhibition capacity in grapefruit seed extracts used in apiculture 109-113
       

Summary
American foulbrood, caused by Paenibacillus larvae subsp. larvae (White 1906) is one of the most serious diseases of honey bees, causing beekeepers and health workers to make difficult, complex decisions and leading to the development of ‘organic’ treatments, such as grapefruit seed extract, with minor residue problems in the end product. This study evaluates the chemical composition of grapefruit seed extracts using gas chromatography/mass spectrometry for the detection of benzethonium chloride, cetrimonium bromide and decyltrimethylammonium chloride. The results obtained suggest a close correlation between the microbial effect and the presence of chemical additives in the samples analysed.

Keywords
Additives, American foulbrood, Grapefruit seed extracts, Inhibition capacity, Paenibacillus larvae.


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