Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Galactose, colorimetric determination

W. Yaphe, Colorimetric determination of 3,6-anhydrogalactose and galactose in marine algal polysaccharides, Anal. Chem., 32 (1960) 1327-1330. [Pg.189]

A specific, colorimetric determination of 2-acetamido-2-deoxy-D-galactose is based on its reaction with pentane-2,4-dione under anhydrous basic conditions to give a product identified as (458). Mild alkaline hydrolysis of (458) yields 2-methylpyrrole, which can be determined by the chromophore (Amax 548 nm)... [Pg.195]

Protein and ash comprised about 10% of the AIS and were found mostly in the dilute alkali extract. The neutral sugars were determined by HPLC and GLC of their sllylated derivatives of the hydrolysate after removal of acid. Arabinose and galactose were found in the dilute alkali extract. Xylose, arabinose, galactose and glucose were all present in the easily hydrolyzable fraction. Glucose was the main sugar component in the fraction dissolved in the 12 M H SO. Carbazol colorimetric method was used to determine the uronlc acids in the fractions. [Pg.205]

See other pages where Galactose, colorimetric determination is mentioned: [Pg.264]    [Pg.497]    [Pg.638]    [Pg.42]    [Pg.46]    [Pg.174]    [Pg.1174]    [Pg.304]    [Pg.45]    [Pg.70]    [Pg.22]    [Pg.13]    [Pg.81]    [Pg.341]    [Pg.315]    [Pg.701]    [Pg.154]    [Pg.212]   
See also in sourсe #XX -- [ Pg.37 ]



SEARCH



Colorimetric

Colorimetric determination

© 2024 chempedia.info