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:
Jun. 08, 1993
Filed:
Mar. 24, 1992
James R Beadle, Elkridge, MD (US);
Gilbert V Levin, Annapolis, MD (US);
Lee R Zehner, Brookeville, MD (US);
Biospherics Incorporated, Beltsville, MD (US);
Abstract
Free flowing, substantially pure, non-hygroscopic crystalline .beta.-L-gulopyranose is disclosed. This crystalline form of L-gulose is characterized by a sharp melting point of 130.degree.-132.degree. C., a specific optical rotation of +40.degree., characteristic mutarotation, a characteristic X-ray powder diffraction pattern, and a characteristic infrared spectrum. A method for preparation of crystalline .beta.-L-gulopyranose from L-gulose syrup is also disclosed. This method involves dilution of the L-gulose syrup, followed by initiation of crystallization, and isolation of .beta.-L-gulopyranose crystals. Crystalline .beta.-L-gulopyranose may be used as an alternative non-caloric or reduced caloric sweetener which substitutes for sucrose or dextrose in commercial dry prepared mixes for making beverages, cakes, puddings, breads, and the like. In addition, crystalline .beta.-L-gulopyranose may be used in applications in which the introduction of water is undesirable, such as jellies, icings, frostings and confections.