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:
Jul. 13, 2010
Filed:
Dec. 19, 2001
Estelle V. Lifran, Epping, AU;
Robert W. Sleigh, Rose Bay, AU;
Robert L. Johnson, Castle Hill, AU;
Robert J. Steele, Vaucluse, AU;
James A. Hourigan, Castle Hill, AU;
Sean M. Dalziel, Wilmington, DE (US);
Estelle V. Lifran, Epping, AU;
Robert W. Sleigh, Rose Bay, AU;
Robert L. Johnson, Castle Hill, AU;
Robert J. Steele, Vaucluse, AU;
James A. Hourigan, Castle Hill, AU;
Sean M. Dalziel, Wilmington, DE (US);
Dairy Australia Limited, Southbank, AU;
Abstract
The present invention relates to improved methods of purification of sugars and in particular to a method of preparing lactose. A low purity lactose source such as whey is subjected to a first demineralization step involving either ion-exchange or the addition of divalent metal cations, followed by a second demineralization step where alcohol is added. The invention also relates to lactose produced by this method and products comprising lactose produced by this method.