The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 1999
Filed:
Jun. 02, 1998
Thomas P Abbott, Peoria, IL (US);
Brian J Plattner, Reynoldsburg, OH (US);
Hal C Purcell, Avila Beach, CA (US);
Abstract
A process for the isolation of simmondsins from jojoba meal is disclosed. Simmondsins are first extracted from defatted jojoba meal with water. After separation from the meal, this water extract is subsequently dried, leaving the simmondsins in the resulting solid. The simmondsins may then be preferentially extracted from the dried water extract by contact with a first ethanolic solvent, forming a first solvent fraction containing simmondsins therein. The first solvent fraction, which is a substantially protein-free concentrate of simmondsins, may be separated from the solid phase, and the ethanolic solvent may then be readily removed, for example, by drying. Residual simmondsins remaining in the meal following extraction with the first ethanolic solvent may also be recovered by a second extraction with ethanolic solvent. Optionally, simmondsin and its analogs, simmondsin ferulate, demethylsimmondsin, and didemethyl simmondsin, may be separated in substantially pure form from the extracts by reverse-phase HPLC.