CN108251564B - Sugar juice composite decoloring agent and sugar juice decoloring method - Google Patents
Sugar juice composite decoloring agent and sugar juice decoloring method Download PDFInfo
- Publication number
- CN108251564B CN108251564B CN201611249195.9A CN201611249195A CN108251564B CN 108251564 B CN108251564 B CN 108251564B CN 201611249195 A CN201611249195 A CN 201611249195A CN 108251564 B CN108251564 B CN 108251564B
- Authority
- CN
- China
- Prior art keywords
- juice
- sugar
- sugar juice
- decoloring
- reagent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
- C13B20/08—Purification of sugar juices by oxidation or reduction
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Non-Alcoholic Beverages (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The invention relates to a sugar juice composite decoloring agent and sugar juiceThe sugar juice composite decoloring agent is prepared by using H2O2And vitamin C2O2-Vc complexing agent, H2O2The mass ratio of the vitamin C to the vitamin C is 0.01-10; the sugar juice decoloring method comprises the following steps: by means of H2O2the-Vc compound reagent is used for decoloring sugar juice which is mixed juice, clear juice, syrup or/and massecuite, and H is used in the decoloring treatment process2O2The mass ratio of the added amount of the-Vc composite reagent to the corresponding sugar juice is 10 multiplied by 10‑6～2×10‑3. The invention can greatly reduce the color value of the sugar juice, greatly reduce the residual quantity of sulfur dioxide, effectively reduce the content of colored substances and the residual quantity of sulfur in the final finished white granulated sugar, and simultaneously improve the purity of the white granulated sugar, thereby improving the quality of the finished white granulated sugar; on the other hand, the process is simple, the original process flow is not required to be changed, the investment and the operation cost are low, and the economic benefit of the sugar refinery is obviously improved.
Description
Technical Field
The invention relates to a sugar juice composite decoloring agent and a sugar juice decoloring method.
Background
The color value of the white granulated sugar is the most important quality index of the white granulated sugar with the greatest technical difficulty. The variety of colored materials in sugar products is very diverse and complex, including those originally contained in sugar cane and those produced during the production process. The pigments originally contained in sugarcane mainly have two main categories of fat solubility and water solubility, the former coexists with the lipid in sugarcane juice, is basically insoluble in water, and most of the pigments can be removed when being heated. The water-soluble pigments are mainly various polyphenols, and are the main reason for coloring white granulated sugar and various sugar products. On the other hand, in the sugar production process, new colored substances are continuously generated except for part of colored substances removed by clarification treatment, or the original colorless or light-colored substances are changed into darker substances. Therefore, the color value of the white granulated sugar is reduced, and the method starts from the aspect of removing the colored substances in the clarification step and simultaneously inhibiting or avoiding the generation of new colored substances in the sugar manufacturing process.
In the conventional sugar manufacturing process, the removal of colored substances such as pigments is mainly completed by a clarification process. The prior clarification process mainly comprises three methods, namely a lime method, a sulfurous acid method and a carbonic acid method, and the sulfurous acid method clarification process is generally adopted by sugar mills due to good clarification effect and low cost. The clarification process of the sulfurous acid method mainly removes part of non-sugar through calcium sulfite precipitate; in addition, sulfurous acid is combined with a plurality of double bond-containing organic matters, particularly the most active components in the organic matters, so that the number of the double bonds contained in the organic matters is reduced, the polycondensation reaction of the organic matters is inhibited, and the generation of colored matters is reduced; the free sulfurous acid eliminates free oxygen and oxidizing substances in the material, and reduces the polycondensation reaction of organic matters and the generation of new pigment.
However, in the clarification process by the sulfurous acid method, when normal sugarcane is treated and the operation management is good, the clarification effect can basically adapt to the current requirements, but the quality of white granulated sugar is not ideal enough, the color value, the turbidity and the content of insoluble substances are high, and the color becomes yellow and absorbs moisture when the white granulated sugar is stored; SO in white granulated sugar2High content and the like. Therefore, many white granulated sugar from sulfurous acid sugar mills are not suitable for producing high-grade beverages, cans, foods and medicines.
In order to overcome the defects of the clarification process of the sulfurous acid method, people continuously improve the clarification process of the sulfurous acid method and obtain certain results. For example, the sulfur content in the sugar can be effectively reduced by combining a sulfurous method and a phosphorus flotation method, but the process flow is lengthened, so that the additional loss of the cane sugar and the increase of the color value are caused; the development of efficient decolorant to effectively supplement or improve the clarification process of the sulfurous method is also one of the reform directions of the sugar refining clarification process.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provide aSeed by H2O2The sugar juice composite decolorant and the sugar juice decoloring method which are composed of the vitamin C can greatly reduce the color value of the sugar juice, greatly reduce the residual quantity of sulfur dioxide, effectively reduce the content of colored substances and the residual quantity of sulfur in the final finished product of white granulated sugar, and simultaneously improve the purity of the white granulated sugar, thereby improving the quality of the finished product of white granulated sugar; on the other hand, due to the passage of H2O2the-Vc composite reagent is used for decoloring the sugar juice, the process is simple, the original process flow is not required to be changed, the investment and the operation cost are low, and the economic benefit of a sugar refinery is obviously improved.
The technical scheme for solving the technical problems is as follows: a composite decolouring agent for sugar juice is prepared from H2O2And vitamin C2O2-Vc complexing agent, H2O2The mass ratio of the vitamin C to the vitamin C is 0.01-10.
The further technical scheme of the invention is as follows: h2O2The mass ratio of the vitamin C to the vitamin C is 0.3-1.0.
The other technical scheme of the invention is as follows: a method for decolorizing sugar juice comprises the above step H2O2The Vc compound reagent is used for carrying out decoloring treatment on sugar juice, wherein the sugar juice is one, two, three or four of mixed juice, clear juice, syrup and massecuite, and H is H in the decoloring treatment process2O2The mass ratio of the added amount of the-Vc composite reagent to the sugar juice is 10 multiplied by 10-6～2×10-3。
The further technical scheme of the invention is as follows: the sugar juice is mixed juice of H2O2Decolorizing the mixed juice with-Vc composite reagent, namely H2O2-Vc complex reagent is added to the mixed juice coming out of the press, before sulfitation and neutralization, during the flow and pumping of the mixed juice, or in a buffer tank with H2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
The other further technical scheme of the invention is as follows: the sugar juice is clear juice and adopts H2O2-Vc complexDecolorizing the clear juice with reagent, i.e. H2O2The Vc complex reagent is added to the clear juice, which is mixed with H during the flowing and pumping process, or in a buffer tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
The other further technical scheme of the invention is as follows: the sugar juice is syrup, and adopts H2O2Decolorization of syrup by Vc complex reagent, i.e. H2O2-Vc complex agent is added to the syrup, either raw syrup just coming out of the evaporation section or reconstituted syrup, which is mixed with H during the flow and pumping process, or in a buffer tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
The other further technical scheme of the invention is as follows: the sugar juice is massecuite and adopts H2O2Decolorizing massecuite with Vc composite reagent, namely H2O2-Vc complex reagent is added to massecuite during flow and pumping, or in buffer tank with H2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
The other further technical scheme of the invention is as follows: the sugar juice is two, three or four of mixed juice, clear juice, syrup and massecuite, and H is directly extracted2O2The Vc complex reagent is added to the corresponding sugar juice, which is mixed with H during the flow and pumping process, or in a buffer tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
The double bonds of the pigment molecules in the sugar juice can be broken by the oxidation of hydroxyl radicals (OH), so that the original colored substance molecules are destroyed to generate substances which have lower molecular weight, less double bonds and can not be condensed into colored substances. The hydroxyl radical (OH. cndot.) can pass through H2O2Is generated by decomposition of (A) and is via H2O2The decolorization of sugar juices has also been reported in the literature. However, in the absence of a catalyst, by H2O2The speed of generating hydroxyl free radicals by decomposition is slow, the reaction is not easy to be complete, and residues are easy to be generated. By transition metals, e.g. Fe2+、Cu2+The catalysis (Fenton reaction) can quickly generate hydroxyl free radicals so as to greatly accelerate the oxidation reaction speed. However, in the decolorization of sugar juice, H is passed2O2- Fe2+Or H2O2-Cu2+It is obviously unsuitable to carry out oxidative decolouration, since H2O2- Fe2+Or H2O2-Cu2+The metal ions are carried into the sugar juice.
In fact, in the presence of vitamin C (ascorbic acid, Vc), H2O2Can be easily decomposed into hydroxyl radicals, and, in contrast to other methods, H2O2the-Vc composite reagent is an environment-friendly redox reaction system, is particularly used in the food processing process, and avoids the residue of metal ions. The invention adopts H2O2(hydrogen peroxide) and vitamin C complex reagent decolorizes sugar juice (mixed juice, clear juice, syrup or sugar paste). H2O2the-Vc complex reagent can be used independently and also can be used as a supplement of a sulfurous acid clarification process or other clarification processes.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) the color value of the processed sugar juice is low, so that the color value of the finished white granulated sugar is low, and the product quality is high. The color value of the white granulated sugar is influenced by the quality of the syrup and the operating conditions, so that the color value of the white granulated sugar is directly influenced by the color juice of the sugar juice. By H2O2The sugar juice subjected to oxidation and decoloration treatment by the-Vc composite reagent has the decoloration rate of 40-90%, the color value of the sugar juice is greatly reduced, and the quality of white granulated sugar is improved.
(2) The sulfur content of the white granulated sugar is low. The clarification process of the sulfurous acid method mainly removes part of pigments through calcium sulfite precipitates; in addition, sulfurous acid combines with multiple double bond-containing organic compounds, especially the most active component, to reduce the number of double bonds in the organic compounds, inhibit their polycondensation, and reduce colorGenerating a substance; the free sulfurous acid eliminates free oxygen and oxidizing substances in the material, and reduces the polycondensation reaction of organic matters and the generation of new pigment. By H2O2The Vc composite reagent is used for carrying out decoloration treatment on the mixed juice, so that the stoving intensity required by stoving neutralization is greatly reduced, and even the stoving process is not required; by subjecting the juice or syrup to H2O2The Vc composite reagent is used for oxidation decoloration, and secondary stoving (syrup sulphur bleaching) can be eliminated; both of the above conditions can be added with SO of sugar juice2The amount of SO remaining in the sugar juice is reduced3 2-The amount is greatly reduced (by 30-70%), thereby reducing the content of sulfur in the white granulated sugar.
(3) The purity of the white granulated sugar is improved. In the crystallization process of the sucrose, although most of colored substances (pigments) in the syrup are not easy to enter the crystals, the high molecular weight colored substances in the syrup can enter the white granulated sugar or the raw sugar crystals in a large proportion to become the main pigments of the white granulated sugar or the raw sugar. By H2O2The Vc treats the sugar juice, and breaks the double bonds of pigment molecules in the sugar juice by oxidizing the double bonds of the pigment molecules, so that the original colored substance molecules are destroyed to generate substances which have lower molecular weight, less double bonds and can not be condensed into colored substances, thereby reducing the total colored substances in the sugar juice on one hand, and cracking the original high molecular weight colored substance molecules into small molecular weight on the other hand, greatly reducing the pigment molecules in crystals and improving the purity of white granulated sugar.
(4) No loss of sucrose is caused. Due to H2O2The Vc complex reagent is selective for the subject of oxidation, i.e. H2O2The Vc composite reagent can oxidize double bonds of pigment molecules of the sugar juice to break the pigment molecules, destroy the original colored substance molecules to generate substances which have lower molecular weight, less double bonds and can not be condensed into colored substances, but can not oxidize the glycosidic bonds within the used addition range, ensure that the sucrose can not be lost, and avoid the loss of the sucrose caused by the oxidation of the glycosidic bonds due to the lack of selectivity of other oxidants.
(5) Is free ofH2O2The residue of (1). H in the sugar juice can be eliminated by adjusting the consumption of Vc and adding a small amount of Vc in the last step2O2。
(6) The cost is low. By H2O2The Vc complex reagent can be used for treating sugar juice to reduce sulfur (for producing SO)2) And lime (for Ca (OH) production)2) More importantly, the sugar juice phosphorus floating method with large investment and higher operating cost can be cancelled, so that the investment and operating cost is greatly reduced, and the loss of cane sugar is reduced.
Detailed Description
Example 1: a composite decolouring agent for sugar juice is prepared from H2O2And vitamin C2O2-Vc complexing agent, H2O2And vitamin C in a mass ratio of 0.01 to 10, preferably 0.3 to 1.0, and more preferably 0.6.
Example 2: a process for the decolorization of sugar juice with H as described in example 12O2the-Vc composite reagent is used for carrying out decolorization treatment on sugar juice, wherein the sugar juice is mixed juice and adopts H2O2The mixed juice is decolorized by a-Vc composite reagent, and in the decolorization treatment process, H2O2The mass ratio of the added amount of the-Vc composite reagent to the mixed juice is 10 multiplied by 10-6～2×10-3I.e. H2O2The Vc complex reagent is added to the juice mixture exiting from the press, before sulphitation and neutralization, which will be neutralized H during the flow and pumping process, or in a buffer tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
Example 3: a process for the decolorization of sugar juice with H as described in example 12O2the-Vc composite reagent is used for carrying out decolorization treatment on sugar juice, wherein the sugar juice is clear juice and adopts H2O2The clear juice is decolorized by the-Vc composite reagent, and in the decolorization treatment process, H2O2The mass ratio of the added amount of the-Vc composite reagent to the clear juice is 10 multiplied by 10-6～2×10-3I.e. H2O2-Vc complexAdding the reagent into the clear juice, wherein the clear juice will be neutralized H in the flowing and pumping process or in the buffer storage tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
Example 4: a process for the decolorization of sugar juice with H as described in example 12O2The Vc compound reagent is used for decoloring sugar juice which is syrup and adopts H2O2The Vc compound reagent is used for decoloring the syrup, and H is used in the decoloring process2O2The mass ratio of the added amount of the Vc compound reagent to the syrup is 10 x 10-6～2×10-3I.e. H2O2The Vc complex agent is added to the syrup, which is the raw syrup just coming out of the evaporation section, or to the reconstituted syrup, which will be neutralized H during the flow and pumping, or in the buffer tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
Example 5: a process for the decolorization of sugar juice with H as described in example 12O2the-Vc composite reagent is used for carrying out decolorization treatment on sugar juice, wherein the sugar juice is massecuite and adopts H2O2The sugar paste is decolorized by the Vc composite reagent, and in the decolorization treatment process, H2O2The mass ratio of the addition amount of the-Vc composite reagent to the massecuite is 10 multiplied by 10-6～2×10-3I.e. H2O2-Vc complex reagent is added to massecuite, which will be neutralized H during flow and pumping, or in a buffer tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
Example 6: a process for the decolorization of sugar juice with H as described in example 12O2The Vc composite reagent is used for carrying out decoloring treatment on sugar juice, wherein the sugar juice is two, three or four of mixed juice, clear juice, syrup and massecuite, and H is H in the decoloring treatment process2O2The mass ratio of the added amount of the-Vc composite reagent to the corresponding sugar juice is 10 multiplied by 10-6～2×10-3Directly introduce H into2O2-Vc complex reagent additionAdded to the corresponding sugar juice, which will be neutralized H during the flowing and pumping process, or in a buffer storage tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
In examples 2 to 6 of the present invention, H2O2The mass ratio of the added amount of the-Vc composite reagent to the sugar juice is preferably 10 x 10-5～10×10-4More preferably 0.001 to 0.008.
The embodiments 2 to 6 of the invention can be implemented independently, and other clarification processes are not needed in the subsequent process. As a variation, the method of the present invention in examples 2 to 6 may also be supplemented with a sulfurous acid clarification process or other clarification processes, that is, the sugar juice is decolorized by a sulfurous acid clarification process or other clarification processes while the method of the present invention in examples 2 to 6 is used.
Summary of comparative experimental results.
Comparative experiment shows that the decolorizing agents are respectively H according to the process method of each example2O2Or Vc instead of H in the present application2O2-Vc complexing agent, H2O2Or the amount of Vc added and H2O2The addition amount of the-Vc complex reagent is the same.
As can be seen from the above table, H is used2O2the-Vc composite reagent is used as sugar juice decolorant and independently adopts H2O2Or the Vc is used as a decoloring agent, the color value is reduced (the decoloring rate) by at least 35 percent and can be improved by 79 percent at most; the purity is improved by at least 0.3 percent and can be improved by 2.45 percent at most; the turbidity is reduced by at least 41 percent and can be reduced by 75 percent at most. In summary, H is used2O2The ratio of the-Vc composite reagent used as the sugar juice decolorant to the H used alone2O2Or Vc has a much better effect as a decolorant.
Claims (7)
1. A method for decolorizing sugar juice comprises adding a solvent to sugar juice,the method is characterized in that: by means of H2O2The sugar juice is decolorized by a Vc compound reagent, and the H2O2-Vc complex reagent is composed of H2O2And vitamin C, H2O2The mass ratio of the vitamin C to the sugar juice is 0.01-10, the sugar juice is one, two, three or four of mixed juice, clear juice, syrup and massecuite, and H is added in the decoloring treatment process2O2The mass ratio of the added amount of the-Vc composite reagent to the sugar juice is 10 multiplied by 10-6～2×10-3。
2. A method of decolouring sugar juice according to claim 1, characterised in that: the sugar juice is mixed juice of H2O2Decolorizing the mixed juice with-Vc composite reagent, namely H2O2-Vc complex reagent is added to the mixed juice coming out of the press, before sulfitation and neutralization, during the flow and pumping of the mixed juice, or in a buffer tank with H2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
3. A method of decolouring sugar juice according to claim 1, characterised in that: the sugar juice is clear juice and adopts H2O2Decolorizing the clear juice with-Vc composite reagent, i.e. H2O2The Vc complex reagent is added to the clear juice, which is mixed with H during the flowing and pumping process, or in a buffer tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
4. A method of decolouring sugar juice according to claim 1, characterised in that: the sugar juice is syrup, and adopts H2O2Decolorization of syrup by Vc complex reagent, i.e. H2O2-Vc complex agent is added to the syrup, either raw syrup just coming out of the evaporation section or reconstituted syrup, which is mixed with H during the flow and pumping process, or in a buffer tank2O2-Vc complex reagentFully mixing and reacting to achieve the aim of decoloring.
5. A method of decolouring sugar juice according to claim 1, characterised in that: the sugar juice is massecuite and adopts H2O2Decolorizing massecuite with Vc composite reagent, namely H2O2-Vc complex reagent is added to massecuite during flow and pumping, or in buffer tank with H2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
6. A method of decolouring sugar juice according to claim 1, characterised in that: the sugar juice is two, three or four of mixed juice, clear juice, syrup and massecuite, and H is directly extracted2O2The Vc complex reagent is added to the corresponding sugar juice, which is mixed with H during the flow and pumping process, or in a buffer tank2O2the-Vc composite reagent is fully mixed and reacted, thereby achieving the aim of decoloring.
7. A method of decolouring sugar juice according to any of claims 1 to 6, characterised in that: said H2O2The mass ratio of the vitamin C to the vitamin C is 0.3-1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249195.9A CN108251564B (en) | 2016-12-29 | 2016-12-29 | Sugar juice composite decoloring agent and sugar juice decoloring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249195.9A CN108251564B (en) | 2016-12-29 | 2016-12-29 | Sugar juice composite decoloring agent and sugar juice decoloring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108251564A CN108251564A (en) | 2018-07-06 |
| CN108251564B true CN108251564B (en) | 2021-08-24 |
Family
ID=62721624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611249195.9A Active CN108251564B (en) | 2016-12-29 | 2016-12-29 | Sugar juice composite decoloring agent and sugar juice decoloring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108251564B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453016B (en) * | 2018-09-28 | 2021-05-25 | 广西科技大学 | Sulfur-free clarification and decoloration method for sugarcane squeezed juice |
| CN109182609B (en) * | 2018-09-28 | 2021-05-25 | 广西科技大学 | Bentonite method sugarcane juice sulfur-free clarification process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560281A (en) * | 2004-03-01 | 2005-01-05 | 广西天人科技开发有限责任公司 | Purification agent for decolour in making sugar, purification method for declour of sugar juice and technology for directing producing fine white sugar thereof |
| CN101481746A (en) * | 2008-01-09 | 2009-07-15 | 广西工学院 | Sugar juice decoloring method |
| CN101768644A (en) * | 2010-01-20 | 2010-07-07 | 广西大学 | Method utilizing enzyme to catalyze H2O2 to discolor sugar juice |
| CN103571976A (en) * | 2013-11-12 | 2014-02-12 | 广西科技大学 | Method for reducing clear juice color value in sugar-making process by sulfurous method |
-
2016
- 2016-12-29 CN CN201611249195.9A patent/CN108251564B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560281A (en) * | 2004-03-01 | 2005-01-05 | 广西天人科技开发有限责任公司 | Purification agent for decolour in making sugar, purification method for declour of sugar juice and technology for directing producing fine white sugar thereof |
| CN101481746A (en) * | 2008-01-09 | 2009-07-15 | 广西工学院 | Sugar juice decoloring method |
| CN101768644A (en) * | 2010-01-20 | 2010-07-07 | 广西大学 | Method utilizing enzyme to catalyze H2O2 to discolor sugar juice |
| CN103571976A (en) * | 2013-11-12 | 2014-02-12 | 广西科技大学 | Method for reducing clear juice color value in sugar-making process by sulfurous method |
Non-Patent Citations (1)
| Title |
|---|
| H_2O_2-抗坏血酸均相催化氧化法处理甲基橙;李国清等;《莆田学院学报》;20070425;第14卷(第02期);79-82 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108251564A (en) | 2018-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103866052B (en) | The method that cane sugar manufacture is clarified without sulphur | |
| US4288551A (en) | Process for the purification of sugar syrups | |
| MXPA01010051A (en) | Treatment of sugar juice. | |
| CN108251564B (en) | Sugar juice composite decoloring agent and sugar juice decoloring method | |
| CN102952904B (en) | New additive for producing sugar from sugarcane, preparation method thereof and application method thereof in sugar production | |
| Silva et al. | Combination effect of ozone and heat treatment for the color reduction in sugarcane juice | |
| CN102134260A (en) | Method for preparing phytic acid | |
| CN101481746B (en) | Sugar juice decoloring method | |
| CN109182609A (en) | A kind of swelling local method sugar-cane juice is without sulphur clarification process | |
| CN103709214A (en) | Deep bleaching method of stevioside | |
| CN103710468B (en) | A kind of cane sugar manufacture defecation method using ozone decolorization technology | |
| US1989156A (en) | Refining sugar | |
| CN112048496B (en) | Complex enzyme preparation special for sugar production and preparation method and application thereof | |
| CN101224025B (en) | Producing process of ion-removed concentrated pure grape juice | |
| AU2004223329A1 (en) | Sugar production system | |
| CN112174812B (en) | Preparation method of potassium citrate with ultralow chlorate content | |
| CN110453016B (en) | Sulfur-free clarification and decoloration method for sugarcane squeezed juice | |
| US1755165A (en) | Manufacture of sugar | |
| US2104959A (en) | Purification of sugar juices | |
| US2059110A (en) | Process for making high grade saccharine products and refining raw sugars | |
| CN106957224A (en) | A kind of extracting method of citric acid | |
| CN101481745B (en) | Method for damaging oxidase in cane juice | |
| CN106947839A (en) | A kind of chitosan flocculant and preparation method thereof | |
| US2391649A (en) | Sugar refining | |
| US2082425A (en) | Process for decolorizing sugar juices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |