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:
Nov. 23, 2010
Filed:
Dec. 21, 2004
Varuzhan H. Abelyan, Negeri Sembilan, MY;
Vahe T. Ghochikyan, Negeri Sembilan, MY;
Avetik A. Markosyan, Negeri Sembilan, MY;
Mariam O. Adamyan, Negeri Sembilan, MY;
Lidia A. Abelyan, Negeri Sembilan, MY;
Varuzhan H. Abelyan, Negeri Sembilan, MY;
Vahe T. Ghochikyan, Negeri Sembilan, MY;
Avetik A. Markosyan, Negeri Sembilan, MY;
Mariam O. Adamyan, Negeri Sembilan, MY;
Lidia A. Abelyan, Negeri Sembilan, MY;
PureCircle Sdn Bhd, Negeri Sembilan, MY;
Abstract
The invention disclosed relates to a method for the extraction of sweet glycosides from theBertoni plant and recovery of individual rebaudioside A and stevioside. The extraction is developed in the presence of pectinase, and the extract is purified using cyclodextrin and bentonite. High purity rebaudioside A is obtained by crystallization and recrystallization from ethanol. High purity stevioside is prepared from the filtrate by purification with cyclodextrin, bentonit, and ion exchange resins. The enzymatic modification of the rebaudioside A, stevioside and the purified extract is carried out using the transferring enzymes derived fromand