Process of extracting oil from thin stillage

  • US 10,035,973 B2
  • Filed: 06/20/2014
  • Issued: 07/31/2018
  • Est. Priority Date: 06/24/2013
  • Status: Active Grant
First Claim
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1. A process of recovering oil, comprising:

  • (a) converting a starch-containing material into dextrins with an alpha-amylase;

    (b) saccharifying the dextrins using a carbohydrate source generating enzyme to form a sugar;

    (c) fermenting the sugar in a fermentation medium into a fermentation product using a fermenting organism;

    (d) recovering the fermentation product to form a whole stillage;

    (e) separating the whole stillage into thin stillage and wet cake;


    ) optionally concentrating the thin stillage into syrup; and

    (f) recovering oil from the thin stillage and/or optionally the syrup, wherein a bacterial or fungal protease is present and/or added during steps (d)-(e′


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