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  • How to process shea nut kernels?
  • For processing Shea nut kernels, we need a combination of mechanical pressing unit ( Oil Mill ) and solvent extraction plant (SEP). The following are steps involved in Shea Butter Extraction Plant : Shea nut kernels are separated and cleaned to remove impurities such as dust, metal, plant stalks.
  • How many raw shea nuts are produced in Africa?
  • Africa produces approximately 1,760,000 metric tons (MT) of raw shea nuts a year, and historically, most of this stayed within the African continent to supply domestic demand. The shea export market traditionally traded raw shea kernels rather than shea butter or other finished products.
  • How is shea oil extracted?
  • As a result, many shea producers are adopting more mechanized solutions to improve quality and yield. Larger processors use mechanical extraction equipment to recover more oil efficiently. Screw press expellers physically crush the shea kernels to squeeze out shea oil from the solid meal, which exits the expeller as a cake.
  • Where does a shea tree grow?
  • Although it only grows in a limited swath of sub-Saharan African parklands, the wild shea tree supplies the entire world with enough shea nuts to meet the growing demand for both shea oil and shea butter.
  • How is shea butter fractionated?
  • Once refined, shea butter can be fractionated into two parts: a creamy fat known as shea stearin and a liquid oil called shea olein—otherwise known as shea oil. Fractionation separates these two unique components using either a chemical reagent or physical methods like centrifugation.
  • What is the mechanical press method of shea butter extraction?
  • The mechanical press method of shea butter extraction has been reported by FAO and CFC (2002) but one of the earliest research on the use of the mechanical press was by Marchand (1988). His research revealed that equipped with a jack that exerts 30 tonnes of force, a shea butter press could crush more than 3 kg of shea kernels within 20 minutes.