阅读说明：本技术 高品质赤砂糖的制备方法 (Preparation method of high-quality brown granulated sugar ) 是由 王鞠萱 黄振军 李朝明 段正常 于 2021-01-13 设计创作，主要内容包括：本发明提供了高品质赤砂糖的制备方法,包括原料提汁、糖汁的澄清、蒸发、煮糖、助晶、分蜜和干燥工序,在煮糖后段工序丙糖煮糖过程中,开始进乙原蜜后添加复合酶制剂,在丙糖膏助晶过程中添加糖蜜,并用固定化蔗糖酶对丙糖膏进行处理,此方法生产的赤砂糖产率高、颜色深,不易结块。(The invention provides a preparation method of high-quality brown granulated sugar, which comprises the working procedures of raw material juice extraction, sugar juice clarification, evaporation, sugar boiling, crystallization aiding, honey separation and drying, wherein in the sugar boiling process of the sugar boiling post-stage working procedure, compound enzyme preparation is added after raw ethyl sugar is added, molasses is added in the crystallization aiding process of triose paste, and the triose paste is treated by immobilized sucrase.)

1. The preparation method of the high-quality brown granulated sugar comprises the working procedures of raw material juice extraction, sugar juice clarification, evaporation, sugar boiling, crystallization assistance, honey separation and drying, and is characterized in that in the sugar boiling process of the sugar boiling post-stage working procedure, the complex enzyme preparation is added after the raw ethyl honey is added, the molasses is added in the crystallization assistance process of the triose paste, and the triose paste is treated by immobilized sucrase.

2. The method of producing high-quality brown granulated sugar according to claim 1, wherein: the complex enzyme preparation comprises cellulase, xylanase, dextranase, protease, pectinase, tannase and glucose oxidase.

3. The method of producing high-quality brown granulated sugar according to claim 2, wherein: wherein in each milliliter of the complex enzyme preparation, the cellulase activity is 20000-40000 IU, the xylanase activity is 3000-5000 IU, the dextran activity is 5000-10000 IU, the protease activity is 2000-5000 IU, the pectinase activity is 1000-2000 IU, the tannase activity is 3000-5000 IU, the glucose oxidase activity is 1000-2000 IU, and the addition amount of the complex enzyme preparation is 100-200 g of the complex enzyme preparation added in each cubic triose paste.

4. The method for preparing high-quality brown granulated sugar according to claim 2 or 3, wherein in the complex enzyme preparation, the cellulase activity is 30000IU, the xylanase activity is 4000IU, the dextran activity is 7500IU, the protease activity is 4000IU, the pectinase activity is 1500IU, the tannase activity is 4000IU, and the glucose oxidase activity is 1500 IU.

5. The method for producing high-quality brown granulated sugar according to claim 1, wherein the amount of molasses added is 10 to 20% of that of the massecuite during the massecuite crystallization process, the molasses is slowly added after 2 hours from the beginning of the massecuite, and the addition is completed after 6 to 8 hours from the beginning of the massecuite.

6. The method of claim 1, wherein the treatment time of the high-quality brown granulated sugar with the immobilized sucrase in the process of crystallization of the massecuite is 3-6 hours.

Technical Field

The invention relates to the technical field of separation and extraction, in particular to a preparation method of high-quality brown granulated sugar.

Background

Brown sugar is a byproduct obtained by industrially producing white sugar, and is also one of essential seasonings in daily diet of people. The existing brown granulated sugar is prepared by using sugar cane or beet as raw material and through the processes of pressing, clarifying, evaporating, boiling, crystallizing, honey-separating and drying. The boiled sugar is generally three-series boiled sugar, the brown granulated sugar is the second-series ethyl sugar paste, the second-series ethyl raw honey is separated, the third-series boiled sugar is separated to obtain the third-series sugar paste, and the third-series boiled sugar paste is separated and dried to obtain the product. In the boiling process of the triose paste, because the materials have low purity and high viscosity and are difficult to boil, and the crystallization efficiency of the cane sugar is low, a large amount of waste honey is generated, and the recovery rate of the sugar is reduced. In addition, the produced brown granulated sugar is light in color and easy to agglomerate, thereby increasing the difficulty of sale.

Most sugar factories lack effective solutions for improving the yield of brown granulated sugar and preventing the brown granulated sugar from caking, but for improving the color of the brown granulated sugar, caramel pigment or pigment prepared by reacting lime and molasses serving as main raw materials at high temperature and high pressure is added to color the surface of crystallized granulated sugar to obtain the brown granulated sugar with higher color ratio. The method can cause the surface of brown granulated sugar to have high water content and be easy to agglomerate due to coloring on the surface of sucrose crystals. The addition of calcium ions in lime can result in the generation of more waste honey, which is not beneficial to improving the yield of the brown granulated sugar.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a method for preparing high-quality brown granulated sugar with high yield, dark color and no caking aiming at the defects of the prior art.

A process for preparing high-quality brown sugar includes such steps as extracting juice from raw materials, clarifying the juice, evaporating, boiling sugar, crystallizing aid, separating honey and drying. The compound enzyme preparation comprises cellulase, xylanase, dextranase, protease, pectinase, tannase and glucose oxidase, wherein in each milliliter of the compound enzyme preparation, the activity of the cellulase is 20000-40000 IU, the activity of the xylanase is 3000-5000 IU, the activity of the dextranase is 5000-10000 IU, the activity of the protease is 2000-5000 IU, the activity of the pectinase is 1000-2000 IU, the activity of the tannase is 3000-5000 IU, the activity of the glucose oxidase is 1000-2000 IU, and the addition amount of the compound enzyme preparation is 100-200 g per cubic triose paste. The immobilized sucrase is an immobilized sucrase plate prepared by an embedding method or an adsorption method, and the specific activity of the immobilized sucrase is 300-350 IU/cm²When in use, the immobilized sucrase plate is directly inserted into the crystallization-promoting box, and the immobilized sugarcane is put into the crystallization-promoting box after the expected effect is achievedAnd taking out the carbohydrase plate from the crystallization-promoting box.

Preferably, in each milliliter of the complex enzyme preparation, the cellulase activity is 30000IU, the xylanase activity is 4000IU, the dextranase activity is 7500IU, the protease activity is 4000IU, the pectinase activity is 1500IU, the tannase activity is 4000IU, and the glucose oxidase activity is 1500 IU.

Preferably, in the crystal-assisting process of the triose cream, the addition amount of the molasses is 10-20% of that of the triose cream, the molasses is slowly added after the crystal-assisting process begins for 2 hours, and the molasses is completely added after the crystal-assisting process begins for 6-8 hours;

preferably, in the process of crystallizing the triose paste, the treatment time of the immobilized sucrase on the triose paste is 3 to 6 hours.

Compared with the prior art, the invention has the beneficial effects that:

(1) during the sugar boiling process, part of organic non-sugar in the massecuite such as cellulose, xylan, dextrose anhydride, protein, pectin, tannin and other hydrophilic colloids are dissolved in the massecuite, the viscosity of the massecuite is increased, the crystallization of sucrose is not facilitated, and the brown granulated sugar is easy to agglomerate due to the fact that the sucrose crystals enter during the crystallization process. The complex enzyme preparation is added in the sugar boiling process, and the colloidal substances are degraded through the synergistic effect of a plurality of enzyme preparations, so that the viscosity of the massecuite can be effectively reduced, the crystallization of the cane sugar is facilitated, and the problem that the brown granulated sugar is easy to agglomerate can be solved.

(2) Calcium ions, potassium ions and the like in the massecuite are not beneficial to crystallization of cane sugar, and can cause increase of molasses, increase of sugar loss and decrease of yield of brown granulated sugar. The glucose oxidase is added in the sugar boiling process to catalyze the reaction of glucose and oxygen to generate gluconic acid, so that on one hand, bubbles in the massecuite can be reduced, and on the other hand, the gluconic acid can be chelated with calcium ions and potassium ions to reduce the adverse effects of the calcium ions and the potassium ions on crystallization.

(3) Reducing sugar such as glucose and fructose in the massecuite can reduce the solubility of the sucrose, the crystallization of the sucrose is facilitated, the reducing sugar content in the molasses is higher, and the sucrase can convert the sucrose into the glucose and the fructose. Waste molasses is added in the crystallization assisting process and immobilized sucrase treatment is carried out, so that the content of reducing sugar can be increased, and the crystallization of sucrose is promoted. Compared with non-immobilized sucrase, the immobilized sucrase can be used for effectively controlling the conversion degree of sucrose by easily controlling the processing time, and not only can be used for promoting crystallization by using the reducing sugar generated by the conversion, but also can be used for preventing excessive sucrose from being converted.

(4) The three points promote the crystallization of the sucrose from different angles, and compared with the method of adding the molasses in the crystallization-promoting process independently, the technical scheme of the invention can add more molasses. Because the molasses has low purity and high viscosity, the viscosity of the massecuite can be increased by adding the molasses independently, and the technical scheme of the invention degrades colloidal substances and also reduces the viscosity of the molasses, so that more molasses can be added, thereby reducing the yield of the molasses and improving the yield of brown granulated sugar.

(5) The color value of brown granulated sugar can be improved by degrading protein into amino acid by protease, converting sucrose into glucose and fructose by sucrase, adding reducing sugar brought by molasses, and Maillard reaction between amino acid and reducing sugar. In addition, the added molasses has a darker color, the color of brown granulated sugar is further increased, and the problem of light color of the brown granulated sugar can be effectively solved. The method does not need to add caramel pigment separately, does not need to use molasses to prepare the caramel pigment through working procedures of high temperature, high pressure and the like, has simple operation and low cost, and the produced brown granulated sugar has light fruit fragrance due to high glucose and fructose contents, and is more popular with consumers.

According to the technical scheme, the problem that brown granulated sugar is easy to agglomerate is solved by removing colloid substances in the massecuite, the viscosity of the massecuite is reduced, and the molasses yield is reduced, the sugar loss is reduced, and the yield of the brown granulated sugar is increased by combining the measures of glucose oxidase, immobilized sucrase, molasses addition in the crystallization assisting process and the like. The color of brown granulated sugar is increased by adding molasses and carrying out Maillard reaction by using amino acid and reducing sugar.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with examples are described below, but the scope of the present invention is not limited thereto, and any person skilled in the art may well comprehend the scope of the present invention without any change in the inventive concept within the scope of the present invention.

Example 1

A process for preparing high-quality brown sugar includes such steps as extracting juice from raw materials, clarifying the juice, evaporating, boiling sugar, crystallizing, separating honey and drying, adding composite enzyme preparation after adding raw honey, adding molasses and treating it with immobilized sucrase. The compound enzyme preparation comprises cellulase, xylanase, dextranase, protease, pectinase, tannase and glucose oxidase, wherein in each milliliter of the compound enzyme preparation, the activity of the cellulase is 30000IU, the activity of the xylanase is 4000IU, the activity of the dextranase is 7500IU, the activity of the protease is 4000IU, the activity of the pectinase is 1500IU, the activity of the tannase is 4000IU, the activity of the glucose oxidase is 1500IU, and the addition amount of the compound enzyme preparation is 150 g per cubic triose paste. In the process of crystal-aid of the triose cream, the addition amount of the molasses is 15 percent of that of the triose cream, the molasses is slowly added after the crystal-aid starts for 2 hours, the addition is finished when the crystal-aid starts for 8 hours, and the treatment time of the immobilized sucrase on the triose cream is 4 hours.

Example 2

A process for preparing high-quality brown sugar includes such steps as extracting juice from raw materials, clarifying the juice, evaporating, boiling sugar, crystallizing, separating honey and drying, adding composite enzyme preparation after adding raw honey, adding molasses and treating it with immobilized sucrase. The compound enzyme preparation comprises cellulase, xylanase, dextranase, protease, pectinase, tannase and glucose oxidase, wherein in each milliliter of the compound enzyme preparation, the activity of the cellulase is 20000IU, the activity of the xylanase is 5000IU, the activity of the dextranase is 5000IU, the activity of the protease is 2000IU, the activity of the pectinase is 1000IU, the activity of the tannase is 5000IU, the activity of the glucose oxidase is 1000IU, and the addition amount of the compound enzyme preparation is 100 g of the compound enzyme preparation added into each cubic triose cream. In the crystal-assistant process of the triose cream, the addition amount of the molasses is 20 percent of that of the triose cream, the molasses is slowly added after the crystal-assistant starts for 2 hours, the addition is finished when the crystal-assistant starts for 6 hours, and the treatment time of the immobilized sucrase on the triose cream is 6 hours.

Example 3

A process for preparing high-quality brown sugar includes such steps as extracting juice from raw materials, clarifying the juice, evaporating, boiling sugar, crystallizing, separating honey and drying, adding composite enzyme preparation after adding raw honey, adding molasses and treating it with immobilized sucrase. The compound enzyme preparation comprises cellulase, xylanase, dextranase, protease, pectinase, tannase and glucose oxidase, wherein in each milliliter of the compound enzyme preparation, the activity of the cellulase is 40000IU, the activity of the xylanase is 3000IU, the activity of the dextranase is 10000IU, the activity of the protease is 5000IU, the activity of the pectinase is 2000IU, the activity of the tannase is 3000IU, the activity of the glucose oxidase is 2000IU, and the addition amount of the compound enzyme preparation is 200 g of the compound enzyme preparation added into each cubic triose paste. In the crystal-assistant process of the triose cream, the addition amount of the molasses is 10 percent of that of the triose cream, the molasses is slowly added after the crystal-assistant starts for 2 hours, the addition is finished when the crystal-assistant starts for 8 hours, and the treatment time of the immobilized sucrase on the triose cream is 3 hours.

Comparative example 1

A process for preparing high-quality brown sugar includes such steps as extracting juice from raw materials, clarifying the juice, evaporating, boiling sugar, crystallizing, separating honey and drying, adding composite enzyme preparation after adding raw honey, adding molasses and treating it with immobilized sucrase. The compound enzyme preparation comprises cellulase, xylanase, dextranase, protease, pectinase, tannase and glucose oxidase, wherein in each milliliter of the compound enzyme preparation, the activity of the cellulase is 30000IU, the activity of the xylanase is 4000IU, the activity of the dextranase is 7500IU, the activity of the protease is 4000IU, the activity of the pectinase is 1500IU, the activity of the tannase is 4000IU, and the addition amount of the compound enzyme preparation is 150 g per cubic triose paste. In the crystal-assistant process of the triose cream, the adding amount of the molasses is 15 percent of that of the triose cream, the molasses is slowly added after the crystal-assistant starts for 2 hours, the adding is finished when the crystal-assistant starts for 8 hours, and the treatment time of the immobilized sucrase on the triose cream is 4 hours.

Comparative example 2

A process for preparing high-quality brown sugar includes such steps as extracting juice from raw materials, clarifying the juice, evaporating, boiling sugar, crystallizing, separating honey and drying, and includes such steps as adding glucose oxidase after adding raw honey, adding molasses during crystallizing and treating the paste with immobilized sucrase. The glucose oxidase activity is 1500IU, and the addition amount is 150 g of complex enzyme preparation added in each cubic glucose syrup. In the process of crystal-aid of the triose cream, the addition amount of molasses is 15 percent of that of the triose cream, the molasses is slowly added after the crystal-aid begins for 2 hours, the addition is finished when the crystal-aid begins for 8 hours, and the treatment time of the immobilized sucrase on the triose cream is 4 hours.

Comparative example 3

The preparation method of the high-quality brown granulated sugar comprises the working procedures of raw material juice extraction, sugar juice clarification, evaporation, sugar boiling, crystallization assistance, honey separation and drying, wherein in the sugar boiling process of the sugar boiling post-stage working procedure of the brown granulated sugar, the complex enzyme preparation is added after the raw honey is added, and the immobilized sucrase is used for processing the triose paste in the crystallization assistance process of the triose paste. The compound enzyme preparation comprises cellulase, xylanase, dextranase, protease, pectinase, tannase and glucose oxidase, wherein in each milliliter of the compound enzyme preparation, the activity of the cellulase is 30000IU, the activity of the xylanase is 4000IU, the activity of the dextranase is 7500IU, the activity of the protease is 4000IU, the activity of the pectinase is 1500IU, the activity of the tannase is 4000IU, the activity of the glucose oxidase is 1500IU, and the addition amount of the compound enzyme preparation is 150 g per cubic triose cream. In the crystal-assisting process of the triose cream, the treatment time of the immobilized sucrase on the triose cream is 4 hours.

Comparative example 4

The preparation method of high-quality brown granulated sugar comprises the working procedures of raw material juice extraction, sugar juice clarification, evaporation, sugar boiling, crystallization assistance, honey separation and drying, wherein in the sugar boiling process of the sugar boiling post-stage working procedure of the brown granulated sugar, the complex enzyme preparation is added after the raw honey is added, and the molasses is added in the crystallization assistance process of the brown granulated sugar paste. The compound enzyme preparation comprises cellulase, xylanase, dextranase, protease, pectinase, tannase and glucose oxidase, wherein in each milliliter of the compound enzyme preparation, the activity of the cellulase is 30000IU, the activity of the xylanase is 4000IU, the activity of the dextranase is 7500IU, the activity of the protease is 4000IU, the activity of the pectinase is 1500IU, the activity of the tannase is 4000IU, the activity of the glucose oxidase is 1500IU, and the addition amount of the compound enzyme preparation is 150 g per cubic triose paste. In the crystal-aiding process of the triose cream, the adding amount of the molasses is 15 percent of that of the triose cream, the molasses is slowly added after the beginning of the crystal-aiding for 2 hours, and the adding is finished when the beginning of the crystal-aiding for 8 hours.

Comparative example 5

The preparation method is basically the same as that of example 1, except that the complex enzyme preparation lacks cellulase.

Comparative example 6

The preparation method was substantially the same as that of example 1, except that the complex enzyme preparation lacked xylanase.

Comparative example 7

The procedure was essentially the same as in example 1, except that the complex enzyme preparation was deficient in dextrose anhydrase.

Comparative example 8

The preparation method is basically the same as that of example 1, except that the compound enzyme preparation lacks protease.

Comparative example 9

The preparation method is basically the same as that of example 1, except that the compound enzyme preparation lacks pectinase.

Comparative example 10

The preparation method is basically the same as that of example 1, except that the complex enzyme preparation lacks tannase.

Experimental analysis:

by the preparation methods of examples 1 to 3 and comparative examples 1 to 10, the yield of brown granulated sugar and molasses, the color value of brown granulated sugar, the colloid content and the caking condition per 1 cubic cube of cooked triosepha are shown in the following table 1:

TABLE 1

As can be seen from Table 1, examples 1 to 3 produced 460kg of brown granulated sugar per cubic piece of paste, and the production of the by-product molasses was 1050 kg. The technical scheme has the following aspects of improving the yield of brown granulated sugar and reducing the yield of molasses, and the method has the advantages that firstly, cellulose, xylanase, dextranase, protease, pectinase, tannase and other degrading colloidal substances reduce the viscosity of massecuite; secondly, glucose oxidase catalyzes glucose reaction to produce gluconic acid, chelate calcium ions and potassium ions, and waste honey is reduced; and thirdly, molasses and sucrose enzyme are added to improve the content of reducing sugar, promote sucrose crystallization and reduce the production of molasses. From the above data it can be seen that the absence of either of these aspects, such as the absence of glucose oxidase in comparative example 1, the absence of an enzyme or enzymes that degrade colloids in comparative example 2 and comparative examples 5 to 10, the absence of molasses added in comparative example 3, and the absence of immobilized sucrase in comparative example 4, does not achieve the superior results achieved by the solution of the invention (examples 1 to 3).

In the aspect of the color of brown granulated sugar, the color values of the brown granulated sugar are obviously lower than those of the examples and other comparative examples because no colloid degrading enzyme (mainly protease) is added in the comparative example 2, no molasses is added in the comparative example 3, no sucrase is added in the comparative example 4, and no sucrase is added in the comparative example 8.

Examples 1 to 3 and comparative examples 1, 3 and 4 all used a degolling enzyme, which had a very low colloidal content of brown granulated sugar and did not cake, and comparative example 2 used no degolling enzyme, which had the highest colloidal content of brown granulated sugar, which reached 872mg/kg and which had a cake of brown granulated sugar. Comparative examples 5 to 10 were deficient in the addition of the colloid-degrading enzyme (lacking a colloid-degrading enzyme), and the colloid-removing effect was inferior to that of the examples, and brown granulated sugar was agglomerated. The 6 enzymes can degrade the colloid to a certain degree, but the colloid can be fully degraded only under the synergistic action of the 6 enzymes, so that the problem of caking of brown granulated sugar is solved.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.