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. 10, 1991
Filed:
Apr. 23, 1990
Applicant:
Inventors:
George A Somkuti, Lansdale, PA (US);
Dennis H Steinberg, Philadelphia, PA (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C12R / ; C12P / ;
U.S. Cl.
CPC ...
4352534 ; 435 99 ; 4352523 ; 435885 ;
Abstract
Mutant strains of Streptococcus thermophilus having defective lactose transport systems having a phenotype gluS.sup.31, lacS.sup.-, sucS.sup.+ and .beta.gal.sup.+ are effective for use in processes where the hydrolysis of lactose is sought. Thermostability of these strains as well as the .beta.-galactosidase produced allows lactose hydrolysis prior to and during pasteurization. These organisms provide the food industry with improved methods of making reduced lactose dairy products.