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What is Hexane ? How its added to Edible Oils ?

  • What is Hexane ?    
  • How HEXANE is used in Edible Oils ? 
  • Why its harmful to our health ?  
  • How can hexane affect my health?

                                  In industry, hexanes are used in the formulation of glues for shoes, leather products, and roofing. They are also used to extract cooking oils (such as canola oil or soy oil) from seeds, for cleansing and degreasing a variety of items, and in textile manufacturing. They are commonly used in food based soybean oil extraction in the United States, and are potentially present as contaminants in all soy food products in which the technique is used; the lack of regulation by the FDA of this contaminant is a matter of some controversy.[8][9]

      100 % hexane free oil                             

A typical laboratory use of hexanes is to extract oil and grease contaminants from water and soil for analysis.[10] Since hexane cannot be easily deprotonated, it is used in the laboratory for reactions that involve very strong bases, such as the preparation of organolithiums. For example, butyllithiums are typically supplied as a hexane solution.[citation needed]

Hexanes are chiefly obtained by refining crude oil. The exact composition of the fraction depends largely on the source of the oil (crude or reformed) and the constraints of the refining. The industrial product (usually around 50% by weight of the straight-chain isomer) is the fraction boiling at 65–70 °C (149–158 °F).

cancer from hexane in edible oils

How can hexane affect my health?

The only people known to have been affected by exposure to n-hexane used it at work. Breathing large amounts caused numbness in the feet and hands, followed by muscle weakness in the feet and lower legs. Continued exposure led to paralysis of the arms and legs. If removed from the exposure, the workers recovered in 6 months to a year.

In laboratory studies, animals exposed to high levels of hexane in air had signs of nerve damage. Some animals also had lung damage. In other studies, rats exposed to very high levels of hexane had damage to sperm-forming cells.

Source : wikipedia.org 

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