Preparation of D-Arabinose-1-C+14 and D-Ribose-1-C+14
نویسندگان
چکیده
منابع مشابه
Synthesis of D-Glucose-1-C14 and D-Mannose-1-C14
Heretofore, radiochemical yields of sugars position-labeled with carbon-14 have been only 5 to 10 percent. This paper reports an improved cyanohydrin synthesis, and the preparation of D-glucose-1-C and D-mannose-1-C from D-arabinose in yields of about 50 percent. Low yields in prior syntheses appear to have been due to several inefficient steps, and to the fact that extension of the carbon chai...
متن کاملUtilization of 1-C14-D-glucose by Torula utilis yeast.
A study of the utilization of l-C14-D-glucose by Torula utilis yeast was undertaken in an effort to clarify certain biosynthetic mechanisms operating in yeast metabolism. A recent publication by Gilvarg (1) describes the results obtained in a similar study with Xaccharomyces cerevisiae yeast. Since our methods and certain of our results differ from those of Gilvarg, a partial report of our obse...
متن کاملOne-step preparation of C14-cyanide from barium carbonate-C14.
News and Notes Eighth Annual Calorimetry Conference; Symposium on the Role of Proteins in Ion Transport Across Membranes.. 710 Technical Papers One-Step Preparation of C14-Cyanide from Barium Carbonate-C14: J. K. Jeanes .719 Evaluation of Oral Temperature Readings: Francis L. Harmon.. 719 Use of the Thymus Gland in Chicks to Elucidate Interrelationships Between Pteroylglutamic Acid and Biologic...
متن کاملMetabolism of D-ribose1-C14 and C14-labeled d-gluconate in an enzyme system of the genus Propionibacterium.
Stjernholm, Rune L. (Western Reserve University, Cleveland, Ohio) and Frank Flanders. Metabolism of d-ribose-1-C(14) and C(14)-labeled d-gluconate in an enzyme system of the genus Propionibacterium. J. Bacteriol. 84:563-568. 1962.-Ribose-1-C(14) and potassium gluconate labeled in different positions were incubated with cell-free extracts of Propionibacterium shermanii. The resulting propionate,...
متن کاملFermentation of ribose-C14 by Lactobacillus pentosus.
In studies (l-3) on the synthesis in vivo of ribose by the tracer technique, it was desirable to have a rapid means of degrading the pentose for determination of the Cl4 distribution. The fermentation of pentose by Lactobacillus pentosus 124-2 seemed suitable for this purpose. Fred et al. (4) showed that this organism produces 1 mole each of lactic and acetic acids per mole of pentose utilized....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards
سال: 1953
ISSN: 0091-0635
DOI: 10.6028/jres.051.033