Patent ID: 7037672

Claim:
A process for producing at least one of a γ-dodecalactone- and a γ-dodecelactone-containing solution, which comprises subjecting a culture obtained by culturing Corynebacterium sp. NK-1 (FERM BP-6329) or yeast belonging to Saccharomyces cerevisiae, Saccharomyces uvarum, Saccharomyces exigus, Kluyveromyces lactis, Kluyveromyces marxianus, Kluyveromyces thermotolerans, Zygosaccharomyces bailii or Zygosaccharomyces florentinus in a medium containing rice bran or treated rice bran suspension to solid-liquid separation, recovering the residue, and then extracting the lactone from said residue with an acidic aqueous solution of ethanol.