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Effect Of Processing on Ochratoxin A (OTA) Content of Coffee

  • R. Viani
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 504)

Abstract

Coffee production can be roughly separated into three main steps 1) cherry processing to green coffee beans, 2) storage and transportation of green coffee to the place of consumption, and 3) green coffee processing to roasted and ground coffee and soluble coffee. The mold species which are known to produce ochratoxin A (OTA) in coffee have been identified asAspergillus ochraceus A. carbonarius and occasionally,A. niger. The length of time spent at a water activity > 0.80 at any moment until roasting defines the risk of mold growth and OTA production. However, the specific moment and locus of contamination have not yet been clearly identified. Since coffee husks are a significant source of OTA contamination, cleaning and grading of green coffee are effective methods for reducing OTA levels in coffee. During the process of converting green coffee to roasted and soluble coffees, up to 90% reduction in OTA levels can occur.

Keywords

Coffee Berry Green Coffee Critical Control Point Coffee Husk Green Coffee Bean 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • R. Viani
    • 1
  1. 1.Association Scientifique Internationale du Café (ASIC)FAO ConsultantCorseauxSwitzerland

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