Methods in Starch and Dextrose Industry

Determination of D-Glucose in Corn Sirups

“…The D-glucose contents of a number of corn sirups differing in extents of hydrolysis are shown in Table I and comparison is made with the D-glucose contents as determined by the SicherGBleycr method. There is fair agreement between the two methods, considering the errors that can arise in the Sichert-Bleyer determination (7). Analysis of the corn sirups by quantitative paper chromatog-+ 'AO; raphy (19) agrees with the values obtained by As is apparent, the reaction may be followed stoichiometrically by either manometric measurements (11) or alkali titration (2, 6) of the acid formed.…”

Determination of Some Components in Corn Sirups by Quantitative Paper Chromatography

“…The urines were extracted with chloroform after incubation with glucuronidase (9). The values reported here are not maximum, as ideal conditions for extraction of urine have not been attained (8). It is probable that the values, in general, are low because 100 units per cc.…”

“…A number of corn sirups differing in degree of hydrolysis were analyzed. PRODUCTION control in corn sirup manufacturing has been based primarily on determinations of moisture, ash, pH, color, and reducing sugars (8). Little has been known about the composition of the sugar mixture except its n-glucose content, determinable from Siehert-Bleyer reducing values (29), by various fermentation procedures (2 .…”

Food

“…Mortimore and Romans (108) utilized x-ray fluorescence as a control method in the production of zirconium and hafnium. Despujols (60) found this to be a simple method for determining small amounts of metals in ores. Use of x-ray fluorescence methods for applied analysis has developed somewhat more slowly than might be anticipated for a method of such inherent value-possibly because of the time necessary to perfect and manufacture acceptable commercial apparatus.…”