×

Solventless extraction process

  • US 6,750,048 B2
  • Filed: 01/19/2001
  • Issued: 06/15/2004
  • Est. Priority Date: 01/19/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A process for obtaining lipid from microorganisms comprising:

  • a) lysing cells of the microorganisms to produce a lysed cell mixture;

    b) treating said lysed cell mixture using an extraction process conducted in a medium that comprises less than about 5% of an organic solvent, while avoiding organic solvent extraction to obtain said lipid, wherein said process produces a phase separated mixture comprising a heavy layer and a light layer, wherein said heavy layer comprises an aqueous phase and said light layer comprises lipid, and wherein said step of treating comprises treating said lipid to obtain non-emulsified lipid in said light layer;

    c) separating said heavy layer from said light layer; and

    d) obtaining said lipid from said light layer.

View all claims
  • 9 Assignments
Timeline View
Assignment View
    ×
    ×