A kind of production method of white granulated sugar

Abstract

The invention discloses a production method of white granulated sugar, which comprises (1) selecting fresh sugarcane as a raw material; (2) pressing the sugarcane to obtain sugarcane juice; (3) adding L-ascorbic acid to the sugarcane juice, stirring and mixing ;(4) Adjust sugarcane juice to pH=5.5-6.5, heat to 60-65°C, add flocculant and stir thoroughly, carry out sedimentation treatment, and obtain clarified liquid; (5) Use ultrafiltration membrane separation system to treat the clarified liquid , to obtain ultrafiltered juice, which is adjusted to neutrality with acid; (6) ultrafiltered juice is subjected to electrodialysis, and then concentrated to obtain a concentrated solution; (7) the concentrated solution is subjected to strong alkaline anion exchange, and then weakly acidic Cation exchange desalination; the final sugar solution is evaporated and concentrated, combined and crystallized to obtain white sugar. The production method of white granulated sugar provided by the invention is simple in operation, does not need sulfur fumigation, can reduce the color value of sugar juice, thereby meeting the syrup quality requirements required for producing white granulated sugar, and producing high-quality sulfur-free white granulated sugar.

Description

technical field [0001] The invention relates to the technical field of sugar production, in particular to a production method of white granulated sugar. Background technique [0002] White granulated sugar is a kind of edible sugar. There are many types of edible sugar, which can be divided into raw sugar or coarse sugar, soft white sugar, white granulated sugar, rock sugar, cube sugar, brown granulated sugar, soil brown sugar, etc. White granulated sugar and soft white sugar are commonly known as white sugar. White granulated sugar is the food sugar with the largest consumption in the food and beverage industry and civilian use. Guangxi is the largest white sugar producing province in China. How to produce high-quality white sugar and improve the production technology level in the new era is one of the main directions for the technological development of my country's sugar industry. [0003] The production of white granulated sugar mainly relies on sugarcane as raw materi...

AI Technical Summary

Problems solved by technology

Therefore, we must first strictly monitor the quality of raw cane to ensure its freshness, and avoid the impact of increased production costs and reduced quality of white sugar products due to stale raw cane

[0004] At present, the detection of sugarcane freshness is mainly through sensory inspection by inspectors. The judgment results are highly subjective and there is no unified judgment standard. The detection results cannot accurately explain the real situation of sugarcane freshness, so that the detection effect is not ideal.