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Clarification method of sugarcane juice

A technology of sugarcane juice and sugarcane, which is applied in the purification of sugar juice, sucrose production, sugar production, etc., can solve the problems of limited application, poor solubility, and no relevant reports in research, and achieve improved solubility, reduced color value, chemical lively effect

Active Publication Date: 2019-05-10
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, chitosan has poor solubility in neutral solution, which limits its application.
At present, there are related reports on the application of carboxymethyl chitosan and quaternary ammonium chitosan in the clarification of cane juice, but there is no relevant report on the application of chitosan phosphate in the clarification of cane juice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A clarification method for sugarcane juice, comprising the following steps:

[0047] S1. Take freshly squeezed mixed juice that has passed through a 200-mesh filter, add 300 mg of phosphoric acid per 1 L of mixed juice, add milk of lime to adjust the pH to 7.0-7.2, and obtain prelime juice;

[0048] S2. Heat the pre-lime juice to 60°C, add 300mg of chitosan phosphate per 1L of the pre-lime juice, place it in the first reactor, control the temperature in the first reactor to 60°C, and the stirring rate to 100r / min, Stir for 30min to obtain the first reaction solution;

[0049] S3. Heating the first reaction liquid to 100° C., performing foaming treatment to obtain the first mixed liquid, transferring it to a buoyancy device for floating treatment for 10 minutes, and obtaining clear juice after filtering;

[0050] Wherein, the preparation method of described chitosan phosphate comprises the following steps:

[0051] A1, according to every 1g of chitosan and 40mL volume ...

Embodiment 2

[0056] A clarification method for sugarcane juice, comprising the following steps:

[0057] S1. Take freshly squeezed mixed juice that has passed through a 200-mesh filter, add 350 mg of phosphoric acid per 1 L of mixed juice, add milk of lime to adjust the pH to 7.0-7.2, and obtain prelime juice;

[0058] S2. Heat the pre-lime juice to 65°C, add 650mg of chitosan phosphate per 1L of the pre-lime juice, place it in the first reactor, control the temperature in the first reactor to 68°C, and the stirring rate to 150r / min, Stir for 35min to obtain the first reaction solution;

[0059] S3. Heating the first reaction solution to 110° C., and performing foaming treatment to obtain the first mixed solution, which was transferred to a buoyancy device for floating treatment for 15 minutes, and filtered to obtain clear juice;

[0060] Wherein, the preparation method of described chitosan phosphate comprises the following steps:

[0061] A1, according to every 1g of chitosan and 40mL ...

Embodiment 3

[0066] A clarification method for sugarcane juice, comprising the following steps:

[0067] S1. Take freshly squeezed mixed juice that has passed through a 200-mesh filter, add 400 mg of phosphoric acid per 1 L of mixed juice, add milk of lime to adjust the pH to 7.0-7.2, and obtain prelime juice;

[0068] S2. Heat the pre-lime juice to 70°C, add 1000mg of chitosan phosphate per 1L of the pre-lime juice, place it in the first reactor, control the temperature in the first reactor to 75°C, and the stirring rate to 200r / min, Stir for 40min to obtain the first reaction solution;

[0069] S3. Heating the first reaction solution to 120° C., and performing foaming treatment to obtain the first mixed solution, which was transferred to a buoyancy device for floating treatment for 20 minutes, and filtered to obtain clear juice;

[0070] Wherein, the preparation method of described chitosan phosphate comprises the following steps:

[0071] A1, according to every 1g of chitosan and 40mL...

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Abstract

The invention discloses a method of clarifying sugarcane juice, comprising the following steps: S1, taking fresh pressed mixed juice screened with a 200-mesh screen, adding 300-400 mg of phosphoric acid per 1 L of the mixed juice, adding lime milk to adjust pH to 7.0-7.2 to obtain pre-limed juice; S2, heating the pre-limed juice to 60-70 DEG C, adding 300-1000 mg of chitosan phosphate, placing in a first reactor, controlling interior temperature of the first controller to 60-75 DEG C, and stirring at 100-200 r / min for 30-40 min to obtain a first reaction liquid; S3, heating the first reaction liquid to 100-120 DEG C, preparing to obtain a first mixed liquid, transferring the first mixed liquid into a floating device, floating for 10-20 min, and filtering to obtain a clear juice.The method of processing the sugarcane juice has the advantages high decoloring rate and high purity.

Description

technical field [0001] The invention relates to the field of sugar cane sugar production. More specifically, the present invention relates to a method for clarification of sugarcane juice. Background technique [0002] White granulated sugar is a pillar industry in Guangxi, and improving the quality of white granulated sugar is the key to improving the international competitiveness of my country's white granulated sugar. In the production process, the quality of white granulated sugar is mainly related to the color value, and the control of clarification effect is an extremely important step in the whole process. [0003] At present, the main cleaning methods used by sugar factories are divided into two categories: sulfurous acid method and carbonic acid method. Most sugar factories use sulfurous acid method. [0004] The sulphite clarification process includes pre-ashing, sulfur fuming neutralization, sedimentation, filtration and other processes. The entire process is s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C13B20/12C13B20/14C08B37/08C07K5/068
CPCC07K5/06086C08B37/003C13B20/123C13B20/14
Inventor 梁欣泉任勤陆登俊何惠欢
Owner GUANGXI UNIV
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