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Removing the Toxins from the Meal

  • The poisonous property of the plant is mainly due to presence of toxalbumins called curcin, ricin and cyanic acid, related to ricinoleic acid.
  • The primary toxic factors present in Jatropha seed meal are the phorbol esters
  • Ricin has been shown to exhibit many cardiotoxic and hemolytic effects. 

Detoxification of Jatropha Meal

When the toxins in the Jatropha meal are removed, the detoxified Jatropha meal can be used as animal feed.

The components associated with toxicity can be denatured or inactivated by heat. Heat treatment or the combination of heat and chemical treatments can inactivate the toxic components. Extraction with 80-90% ethanol or methanol also holds promise in detoxification.

Certain fermentation processes also have the potential to eliminate the toxins. Jatropha oil cake compares well with any other oil cake and poultry and farm yard manure in terms of N, P and K content of 4.4, 2.09 and 1.68 per cent respectively.

http://www.tnau.ac.in/tech/swc/evJatropha.pdf  

 

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