geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Crystallization of alpha-L-aspartyl-L-phenylalanine methyl ester


, : Crystallization of alpha-L-aspartyl-L-phenylalanine methyl ester. Official Gazette of the United States Patent & Trademark Office Patents 1236(3), July 18

Disclosed is a method of crystallizing alpha-L-aspartyl-L-phenylalanine methyl ester, which is a sweetening agent substituting sugar and commonly referred to as aspartame. An aspartame solution is sprayed and droplets of the solution fall downward. Cold airflow is blown to the falling droplets of the aspartame solution to cool them. The aspartame dissolved in the droplets crystallizes, and the slurry including the aspartame crystals and the remaining solution is collected for further processes. Also disclosed is a crystallizer for cooling crystallizing the aspartame solution with this method. The crystallizer has an atomizer for spraying the aspartame solution supplied thereto and an air inlet and an air outlet. The cold air is blown into the crystallizer through the air inlet, cools the droplets of the aspartame solution, and is discharged through air outlet.

US$29.90


Other references

Hunt, R., 1908: The Loco-Weed Disease. Plant cell membranes were examined in thin sections by electron microscopy. Numerous membrane continuities appeared between chloroplasts and other organelles of the fern Pteris vittata L., and occasionally in the leaves of the tomato Lycopersicon...

Fried, A.; Benayahu, D.; Wientroub, S., 1993: Marrow stroma-derived osteogenic clonal cell lines: putative stages in osteoblastic differentiation. This report documents characterization of five osteogenic cell subpopulations of bone marrow stroma. The clonally derived cell lines were isolated from the parental line MBA-15 known to express osteoblastic-associated features in vitro and to form...

Lagarrigue, J., 1977: Possibilities of trans-facial micro-anastomoses in the treatment of peripheral facial paralysis. Revue D'oto-Neuro-Ophtalmologie 49(3): 207-212

van Amerongen, W.E.; Mulder, G.R.; Vingerling, P.A., 1986: Consequences of endodontic treatment in primary teeth. Part I: A clinical and radiographic study of the influence of formocresol pulpotomy on the life-span of primary molars. In the context of a study of the life-spans of primary teeth subjected to formocresol pulpotomy, 152 such teeth were compared with the corresponding teeth on the contralateral sides. The life-span of each tooth was determined by registration of th...

Spies, J.R.; Chambers, D.C., 1950: Determination of tryptophan with p-dimethylaminobenzaldehyde using photochemical development of color. If it is not convenient to use NaNO2 for the oxidation of the condensation product of tryptophan and p-dimethylaininobenzaldehyde, photochemical oxidation gives a reasonable degree of accuracy. Results are given of comparative analyses by the 2 me...

Turleau, C.; Vekemans, M., 2010: Trisomy 21: fifty years between medicine and science. Fifty years after the discovery of the etiology of Down syndrome, trisomy 21 remains the model of choice for studying human diseases resulting from the presence of a chromosome or a chromosome segment in excess. In this review, mechanisms of aneup...

Marliss, E.B.; Ohman, J.L.; Aoki, T.T.; Kozak, G.P., 1970: Altered redox state obscuring ketoacidosis in diabetic patients with lactic acidosis. New England Journal of Medicine 283(18): 978-980

Strnad, P., 1965: Cultivation of intercrops for green manuring in the beet-production region. Yields of catch crops sown into stubble were greater than those of undersown crops. Early sowing was important. The yields of the cover crop were not influenced by the undersown crop. The highest yields of green matter were obtained from Phacelia,...

Dubrey, S.William.; Peake, S., 2009: A deadly cargo. Bmj Case Reports 2009: -

Bousquet, 1968: Prevention of thrombo-embolic complications in orthopedic surgery. La Revue Lyonnaise de Medecine 17(11): 501-506