2006•Shipin yanjiu yu kaifaRequires access

COLORIMETRIC DETERMINATION OF WATER-SOLUBLE TOTAL SUGAR IN CORN STALK WITH 3,5-DINITROSALICYLIC ACID

Jing Wang

Abstract

The experiment studied on the optimum conditions for 3,5-Dinitrosalicylic acid colorimitry. We discussed the wavelength, dosage of chromogenic, and coloring time, which have effect on the result. According to the experiment, the above factors were determined as 530 nm, 1.5 mL and 5 min respectively. The total sugar is mainly water-soluble total sugar as the concentration of hydrochloric acid is at 6 mol/L.

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Key concepts: Chromogenic, Hydrochloric acid, Chemistry, Sugar, Reducing sugar, Stalk, Food science, Water soluble