Process for producing high-safety white granulated sugar

Abstract

The invention relates to a process for producing high-safety white granulated sugar. The process comprises the following steps of squeezing sugarcane to obtain a mixed juice, pre-liming the mixed juice until the pH value is 6.5, carrying out once heating on the mixed juice until the temperature is 60-65 DEG C, adding lime milk until the pH value is 11, adding phosphoric acid and a polyacrylamide flocculating agent so as to obtain a clear juice, carrying out separation by utilizing an ultrafiltration membrane system, carrying out concentration by using a nanofiltration membrane system, carrying out decoloration by utilizing anion exchange resin, carrying out desalination by utilizing cation exchange resin, and evaporating to obtain a finished product. According to the process, a low-temperature strong-base process is combined with membrane separation, membrane concentration and ion exchange techniques so as to produce sulfur-free organic sugar, so that the problems of existence of sulfur in the product, complex process procedure, low production efficiency, sugar yield and clear juice clarity, serious environmental pollution, low economic benefit and the like in the prior art are solved.

Description

technical field [0001] The invention relates to a method for producing sugar from sugarcane, in particular to a process for producing high-safety white granulated sugar. Background technique [0002] Improve the quality and safety of agricultural products. It can enhance the added value of agricultural products, meet the needs of consumers for healthy food, and is also an important measure to protect agricultural resources and the environment and realize the harmonious development of man and nature. At present, the potential safety hazards of sugar supply in some areas such as Guangxi and Yunnan still exist. The increase of sugarcane production still relies on pesticides and chemical fertilizers, and the sugar production process still needs to be improved. Relying on science and intensifying efforts to improve planting methods and production processes is an effective way to ensure the safety of sugar raw materials and sugar. At the same time, developing high-quality sugar ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a kind of technique of producing high-safety white granulated sugar aiming at the deficiencies in the above-mentioned prior art, utilize low-temperature strong alkali technique combined with membrane separation, membrane concentration and ion exchange technology to produce sulfur-free organic sugar, in order to solve Problems existing in the prior art include sulfur in the product, complex process, low production efficiency, low sugar yield, low clarity of clear juice, serious environmental pollution, and low economic benefits

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