Process for producing high fructose syrup with a content of 55% with rice

Abstract

Disclosed is a process for producing high fructose syrup with a content of 55% with rice. The process comprises the steps of rice steeping and grinding, primary spray liquefaction, secondary spray liquefaction, slag removal, saccharification, primary decolouring and primary ion exchange, isomerization, secondary decolouring and secondary ion exchange, nanofiltration membrane separation and evaporative concentration so as to obtain high fructose syrup with a content of 55%. Application of the invention in industrial production of high fructose syrup enables the operation of precondensation to be omitted and investment in fixed assets and cost of non-production materials to be substantially saved through certain craft adjustment; the invention is more favorable in maintaining stability of product quality.

Description

technical field [0001] The invention relates to a production process of fructose syrup, more specifically a process for producing fructose syrup with a content of 55% by using rice. Background technique [0002] Traditional fructose syrup containing 42% fructose tends to darken when it is higher than 28°C, but it is easy to precipitate glucose monohydrate crystals when stored at a temperature lower than 28°C, resulting in uneven quality of the finished product, which is difficult for transportation and use. Cause difficulty; Simultaneously its sweetness of the syrup of 42% fructose content is lower than common sucrose (about 95% of sucrose), is restricted in use. Fructose syrup with 55% fructose content has high fructose content and higher sweetness. It is stable in storage at low temperature (26-30°C), and the glucose will not crystallize. At the same time, the equipment has small volume, increased production capacity, and reduced cost. It is more competitive and has been ...

AI Technical Summary

Problems solved by technology

[0004] The traditional process has the following problems: ①. Rice starch molecules are small and hard. There are often a large number of insoluble particles such as fat, protein, and large starch molecules that are difficult to break through high-temperature injection, which directly affects the conversion rate of saccharification and isomerization processes, and It brings a lot of trouble to the refining and impurity removal, and it is very difficult to optimize and screen the process conditions

②Three times of decolorization and three times of decolorization lead to higher consumption of auxiliary materials and energy consumption, and the quality of finished products is not easy to control

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