Method for detecting sugar content in sugarcane juice

A determination method, sucrose technology, applied in the preparation of test samples, chemical analysis by titration, etc., can solve the problems of cumbersome operation, large error and expensive detector of optical rotation method

A determination method, sucrose technology, applied in the preparation of test samples, chemical analysis by titration, etc., can solve the problems of cumbersome operation, large error and expensive detector of optical rotation method

CN1932509AInactive Publication Date: 2007-03-21GUANGXI UNIVERSITY OF TECHNOLOGY
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[0006] In order to quickly and accurately determine the content of sucrose, especially the content of sucrose in the raw material sugarcane for sugar production, and in order to avoid environmental pollution from detection, the present invention provides a method for determining sucrose, which is characterized in that: the first step is to take 1ml For the test solution, add 20ml of hydrochloric acid with a concentration of 0.7mol / L and heat and hydrolyze in a water bath at 100°C for 1.5 minutes; in the second step, add 10ml with a concentration of 2.2mol / L sodium hydroxide + 0.1mol / L potassium ferricyanide The solution is heated in a water bath at 100°C for 3 minutes; in the third step, add 60ml of 0.5mol / L hydrochloric acid and titrate with a concentration of 0.1mol / L zinc sulfate; in the fourth step, take 1ml of sugarcane juice to be tested and add 20ml Distilled water, heated in a water bath at 100°C for 1.5 minutes, then add 10ml of 0.8mol / L sodium hydroxide + 0.1mol / L potass...

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Abstract

The invention discloses the measurement method for the cane sugar. Its method includes the water solution of cane sugar, the reaction of Reducing Sugar and iron cyaniding potassium, second iron cyaniding the electric potential titration of the potassium. The method of the invention has to operate easily, measurement result stability credibility, the measurement variation coefficient of result is small, the error margin is small, but it is easy to carry out instrument to turn.

Description

Technical Field: [0001] The invention relates to a method for determining the sucrose content in sugarcane juice. Background technique: [0002] Sucrose is the most commonly used sweetener in the world. It has a wide range of uses in the food industry and is the most commonly used food additive. The production of sucrose mainly uses sugar cane and sugar beet as raw materials, the north is mainly sugar beet, and the south is mainly sugar cane. The level of sucrose content in sugarcane directly affects the interests of sugar companies. The promotion of quality-based pricing will not only improve the enthusiasm of sugarcane farmers to plant high-quality sugarcane, but also improve the production efficiency of sugar companies. Therefore, the determination of sucrose content in sugarcane juice It is of great significance. [0003] At present, the main detection methods of sucrose at home and abroad are: 1. Optical rotation method: The optical rotation method is currently the most comm...

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Application Information

Patent Timeline
21 Mar 2007
Publication
CN1932509A
IPC
G01N31/16; G01N1/38; G01N1/44
Inventors
李利军; 孔红星