CN108251564A - A kind of method of syrup composite decoloring agent and sugar juice decoloring - Google Patents
A kind of method of syrup composite decoloring agent and sugar juice decoloring Download PDFInfo
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- CN108251564A CN108251564A CN201611249195.9A CN201611249195A CN108251564A CN 108251564 A CN108251564 A CN 108251564A CN 201611249195 A CN201611249195 A CN 201611249195A CN 108251564 A CN108251564 A CN 108251564A
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- syrup
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- complex reagents
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- 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
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Abstract
The present invention relates to a kind of methods of syrup composite decoloring agent and sugar juice decoloring, which is by H2O2With the H of vitamin C composition2O2Vc complex reagents, H2O2It is 0.01~10 with ascorbic mass ratio；The method of the sugar juice decoloring is：Using H2O2Vc complex reagents carry out decolorization to syrup, and syrup is mixed juice, juice, syrup or/and massecuite, during decolorization, H2O2The mass ratio of the addition of Vc complex reagents and corresponding syrup is 10 × 10‑6~2 × 10‑3.The present invention can substantially reduce the color value of syrup, the residual quantity of sulfur dioxide also greatly reduces, the content of coloring matter and the residual quantity of sulphur in final finished white granulated sugar can be effectively reduced, while improves the purity of white granulated sugar, so as to improve the quality of finished product white granulated sugar；On the other hand, it is simple for process, it without being modified to original technological process, and invests low with application fee, hence it is evident that improve the economic benefit in sugar refinery.
Description
Technical field
The present invention relates to a kind of methods of syrup composite decoloring agent and sugar juice decoloring.
Background technology
The color value of white granulated sugar is the quality index that white granulated sugar is most important, technical difficulty is maximum.The kind of coloring matter in sugar products
Class is very more and complicated, including two major class of coloring matter that is containing originally in sugarcane and generating in process of production.In sugarcane
Originally the pigment contained mainly has fat-soluble and water-soluble two major class, the former coexists with lipides in sugarcane juice, is substantially insoluble in
Water can largely remove when heated.Water colo(u)r is mainly various polyphenols, they are to make white granulated sugar and various sugar
The main reason for product are colored.On the other hand, in sugar manufacturing process, other than clarifying treatment removes part coloring matter, all
It is continuously generated new coloring matter or original colourless or light substance becomes more dark substance.Therefore, white granulated sugar is reduced
Color value, it is necessary to remove coloring matter from clarification link, while the generation of the coloring matter aspect for inhibiting or avoiding sugaring process new
Start with.
During traditional sugar refining technology, the removing of the coloring matters such as pigment is mainly what is completed by clarifying process.
Current clarification process mainly has three kinds of lime method, sulfurous method and carbonatation process, and sulfurous method clarification process is clarified due to it
Effect is good, at low cost and generally used by sugar refinery.Sulfurous method clarification process mainly passes through calcium sulfite sediment by portion
Non-sugar is divided to remove；In addition, sulfurous acid and a variety of double bond containing organic matters, particularly being good at and wherein most active ingredient knot
It closes, reduces the double bond containing quantity of organic matter, it is suppressed that their polycondensation reaction reduces the generation of colored substance；Free sulfurous acid
The free oxygen and oxidizing substance in material are eliminated, weakens the polycondensation reaction of organic matter and the generation of new pigment.
However, in sulfurous method clarification process, when handling normal sugarcane and relatively good operational administrative, clarifying effect can base
The current requirement of this adaptation, but not ideal enough there is also White Sugar Quality, color value, turbidity and insolubles content are higher, during storage
Color and luster can turn yellow and the moisture absorption；SO in white granulated sugar2The shortcomings of content is higher.Therefore, the white granulated sugar of many sulfitation sugar mills is uncomfortable
The high-grade beverage of symphysis production, can, food and drug are used.
Insufficient existing for sulfurous method clarification process in order to overcome, people to sulfurous method clarification process constantly change
Into, and achieve some achievements.If sulfurous method is combined with phosphorus float glass process, the sulfur content in sugar products can be effectively reduced, but due to technique
Flow lengthens, and can cause the increase of the extraneoas loss and color value of sucrose；And efficient decolorising agent is developed, to the clarification work of sulfurous method
Skill carries out one of effectively supplement or reform orientation of improvement and clarification process of sugar production.
Invention content
The technical problem to be solved by the present invention is to：One kind is provided by H2O2With vitamin C composition syrup composite decoloring agent and
The method of sugar juice decoloring can substantially reduce the color value of syrup, and the residual quantity of sulfur dioxide also greatly reduces, can be effective
Reduction final finished white granulated sugar in the content of coloring matter and the residual quantity of sulphur, while improve the purity of white granulated sugar, so as to
Improve the quality of finished product white granulated sugar；On the other hand, due to passing through H2O2- Vc complex reagents carry out syrup decolorization, technique letter
It is single, it without being modified to original technological process, and invests low with application fee, hence it is evident that improve the economic benefit in sugar refinery.
Solving the technical solution of above-mentioned technical problem is：A kind of syrup composite decoloring agent, the syrup composite decoloring agent be by
H2O2With the H of vitamin C composition2O2- Vc complex reagents, H2O2It is 0.01~10 with ascorbic mass ratio.
The present invention further technical solution be：H2O2It is 0.3~1.0 with ascorbic mass ratio.
The present invention another technical solution be：A kind of method of sugar juice decoloring, using above-mentioned H2O2- Vc complex reagents pair
Syrup carries out decolorization, the syrup be one kind in mixed juice, juice, syrup and massecuite, two kinds, three kinds or four kinds,
During decolorization, H2O2The addition of-Vc complex reagents and the mass ratio of syrup are 10 × 10-6~2 × 10-3。
The present invention further technical solution be：The syrup is mixed juice, using H2O2- Vc complex reagents are to mixing
Juice decolourizes, i.e., by H2O2- Vc complex reagents, which are added to from squeezer, to be come out, in the mixed juice before stove drying neutralization, mixed juice
Flow and pumping procedure in or in tank is buffered with H2O2- Vc complex reagents are adequately mixed and are reacted, so as to reach
To the purpose of decoloration.
The present invention another further technical solution be：The syrup is juice, using H2O2- Vc complex reagents are to clear
Juice decolourizes, i.e., by H2O2- Vc complex reagents are added in juice, and juice is in flowing and pumping procedure or in buffering tank
In with H2O2- Vc complex reagents are adequately mixed and are reacted, so as to achieve the purpose that decoloration.
The present invention another further technical solution be：The syrup is syrup, using H2O2- Vc complex reagents are to sugar
Slurry decolourizes, i.e., by H2O2- Vc complex reagents are added in syrup, and the syrup is the raw sugar just come out from evaporation section
Slurry or remelt syrup, syrup flow and pumping procedure in or in tank is buffered with H2O2- Vc complex reagents carry out abundant
Mixing and reaction, so as to achieve the purpose that decoloration.
The present invention another further technical solution be：The syrup is massecuite, using H2O2- Vc complex reagents are to sugar
Cream decolourizes, i.e., by H2O2- Vc complex reagents are added in massecuite, and massecuite is in flowing and pumping procedure or in buffering tank
In with H2O2- Vc complex reagents are adequately mixed and are reacted, so as to achieve the purpose that decoloration.
The present invention another further technical solution be：The syrup is two in mixed juice, juice, syrup and massecuite
It plants, three kinds or four kinds, directly by H2O2- Vc complex reagents are added in corresponding syrup, syrup flow and pumping procedure in or
In tank is buffered with H2O2- Vc complex reagents are adequately mixed and are reacted, so as to achieve the purpose that decoloration.
The double bond of pigment molecular in syrup can pass through hydroxyl radical free radical（OH·）It aoxidizes and is broken, by original colored substance
Matter molecule destruction generation molecular weight is relatively low, less containing double bond, and cannot be polycondensed into the substance of colored substance again.Hydroxyl radical free radical
（OH·）H can be passed through2O2Decomposition generate, and pass through H2O2Decolourized also have document report to syrup.However, not having
Under the action of having catalyst, pass through H2O2Decomposition generate hydroxyl radical free radical speed it is slower, and reaction be not easy completely, tend to have residual
It stays.Pass through transition metal such as Fe2+、Cu2+It is catalyzed（Fenton reacts）, hydroxyl radical free radical can be quickly generated so as to greatly greatly
Fast oxidation reaction speed.However, in the decoloration of syrup, pass through H2O2- Fe2+Or H2O2-Cu2+It is clearly not to carry out oxidative decoloration
Suitably, because of H2O2- Fe2+Or H2O2-Cu2+Ion will be belonged to be brought into syrup.
In fact, in vitamin C（Ascorbic acid, Vc）In the presence of, H2O2Hydroxyl can be easily decomposed into
Free radical, moreover, compared to other methods, H2O2- Vc complex reagents are a kind of redox reaction systems of environmental protection, are particularly used
In food processing process, the residual of metal ion is avoided.The present invention uses H2O2（Hydrogen peroxide）With vitamin C complex reagent
To syrup（Can be mixed juice, juice, syrup or massecuite）It decolourizes.H2O2- Vc complex reagents can be used alone, also in
Using the supplement as sulfurous method clarification process or other clarification process.
Due to the adoption of the above technical scheme, the invention has the advantages that：
（1）Syrup color value is low after processing, and so as to make the color value of finished product white granulated sugar low, product quality is high.White granulated sugar color value is by sugar
The influence of quality and operating condition is starched, thus the color juice of syrup directly influences the color value of white granulated sugar.Pass through H2O2- Vc is compound
The syrup of reagent oxidation decolorization, percent of decolourization reach 40%-90%, significantly reduce the color value of syrup, improve white sand
The quality of sugar.
（2）White granulated sugar sulfur content is low.Sulfurous method clarification process mainly passes through calcium sulfite sediment by partial pigment
It removes；In addition, sulfurous acid and a variety of double bond containing organic matters, particularly being good at and wherein most active ingredient is combined, reduction has
The double bond containing quantity of machine object, it is suppressed that their polycondensation reaction reduces the generation of colored substance；Free sulfurous acid eliminates material
In free oxygen and oxidizing substance, weaken the polycondensation reaction of organic matter and the generation of new pigment.Pass through H2O2- Vc complex reagents
Decolorization is carried out to mixed juice, will greatly be mitigated in stove drying and required intensity of sulfitation, it might even be possible to not need to stove drying work
Skill；By carrying out H to juice or syrup2O2- Vc complex reagent oxidative decolorations, can cancel secondary stove drying（Syrup sulphur floats）；It is above-mentioned
Two kinds of situations can make the SO of addition syrup2Amount is reduced, while also makes to remain in the SO in syrup3 2-Amount greatly reduces（It reduces
30%-70%）, so as to reduce the content of sulphur in white granulated sugar.
（3）The purity of white granulated sugar improves.In the crystallization process of sucrose, although the coloring matter in syrup（Pigment）Big portion
Divide and be not easily accessible in crystal, but white granulated sugar can be entered with larger proportion for the coloring matter of the high molecular weight in syrup or raw sugar is brilliant
In body, become the primary pigments of white granulated sugar or raw sugar.Pass through H2O2- Vc handles syrup, since it is to pigment in syrup point
The double bond of son aoxidizes and makes its fracture, and original coloring matter molecule destruction generation molecular weight is relatively low, less containing double bond, and
It cannot be polycondensed into the substance of colored substance again, so as to, on the one hand, reduce coloring matter total in syrup, on the other hand, make original
The high molecular weight coloring matter molecular cleavage come greatly reduces the pigment molecular in crystal for small-molecular-weight, white granulated sugar it is pure
Degree improves.
（4）Do not cause sucrose loss.Due to H2O2- Vc complex reagents have selectivity, i.e. H to the object of oxidation2O2-
Vc complex reagents can aoxidize the double bond of the pigment molecular of syrup and make its fracture, and original coloring matter molecule is destroyed and is given birth to
It is relatively low, less containing double bond into molecular weight, and it cannot be polycondensed into the substance of colored substance again, but in the range of additive amount used,
Glycosidic bond can not be aoxidized, ensure that sucrose will not lose, avoid other oxidants due to not selectivity so as to
The loss that oxidation causes sucrose is carried out to glycosidic bond.
（5）Without H2O2Residual.By adjusting the dosage of Vc and a small amount of Vc being added in final tache, syrup can be eliminated
In H2O2。
（6）It is at low cost.Pass through H2O2- Vc complex reagents handle syrup, it is possible to reduce sulphur（For generating SO2）
And lime（For generating Ca (OH)2）Dosage, it is even more important that the syrup that investment is big, application fee is higher can be cancelled
Phosphorus float glass process greatly reduces investment operating cost, while alleviates the loss of sucrose.
Specific embodiment
Embodiment 1：A kind of syrup composite decoloring agent, which is by H2O2With vitamin C composition
H2O2- Vc complex reagents, H2O2It is 0.01~10, preferably 0.3~1.0, more preferable 0.6 with ascorbic mass ratio.
Embodiment 2：A kind of method of sugar juice decoloring, using H described in embodiment 12O2- Vc complex reagents carry out syrup
Decolorization, the syrup is mixed juice, using H2O2- Vc complex reagents decolourize to mixed juice, decolorization process
In, H2O2The addition of-Vc complex reagents and the mass ratio of mixed juice are 10 × 10-6~2 × 10-3, i.e., by H2O2The compound examinations of-Vc
Agent, which is added to from squeezer, to be come out, in the mixed juice before stove drying neutralization, and mixed juice is in flowing and pumping procedure or is buffering
In tank will and H2O2- Vc complex reagents are adequately mixed and are reacted, so as to achieve the purpose that decoloration.
Embodiment 3：A kind of method of sugar juice decoloring, using H described in embodiment 12O2- Vc complex reagents carry out syrup
Decolorization, the syrup is juice, using H2O2- Vc complex reagents decolourize to juice, during decolorization,
H2O2The addition of-Vc complex reagents and the mass ratio of juice are 10 × 10-6~2 × 10-3, i.e., by H2O2- Vc complex reagents add
Into juice, juice flow and pumping procedure in or in tank is buffered will and H2O2- Vc complex reagents are adequately mixed
Merge reaction, so as to achieve the purpose that decoloration.
Embodiment 4：A kind of method of sugar juice decoloring, using H described in embodiment 12O2- Vc complex reagents carry out syrup
Decolorization, the syrup is syrup, using H2O2- Vc complex reagents decolourize to syrup, during decolorization,
H2O2The addition of-Vc complex reagents and the mass ratio of syrup are 10 × 10-6~2 × 10-3, i.e., by H2O2- Vc complex reagents add
Into syrup, the syrup is the raw sugar slurry or remelt syrup just come out from evaporation section, and syrup is being flowed and pumped
During sending or in tank is buffered will and H2O2- Vc complex reagents are adequately mixed and are reacted, so as to reach decoloration
Purpose.
Embodiment 5：A kind of method of sugar juice decoloring, using H described in embodiment 12O2- Vc complex reagents carry out syrup
Decolorization, the syrup is massecuite, using H2O2- Vc complex reagents decolourize to massecuite, during decolorization,
H2O2The addition of-Vc complex reagents and the mass ratio of massecuite are 10 × 10-6~2 × 10-3, i.e., by H2O2- Vc complex reagents add
Into massecuite, massecuite flow and pumping procedure in or in tank is buffered will and H2O2- Vc complex reagents are adequately mixed
Merge reaction, so as to achieve the purpose that decoloration.
Embodiment 6：A kind of method of sugar juice decoloring, using H described in embodiment 12O2- Vc complex reagents carry out syrup
Decolorization, the syrup are two kinds, three kinds or four kinds in mixed juice, juice, syrup and massecuite, decolorization process
In, H2O2The mass ratio of the addition of-Vc complex reagents and corresponding syrup is 10 × 10-6~2 × 10-3, directly by H2O2- Vc is multiple
Close reagent be added in corresponding syrup, syrup flow and pumping procedure in or in tank is buffered will and H2O2The compound examinations of-Vc
Agent is adequately mixed and is reacted, so as to achieve the purpose that decoloration.
In 2- of embodiment of the present invention embodiments 6, H2O2The addition of-Vc complex reagents and the mass ratio of syrup is preferably
10×10-5~10 × 10-4, more preferably 0.001~0.008.
2- of embodiment of the present invention embodiments 6 can individually be implemented, and subsequently be not required to again using other clarification process.As one
Kind transformation, 2- of embodiment of the present invention embodiments 6 can also be used as the supplement of sulfurous method clarification process or other clarification process, i.e.,
While using embodiment 2- 6 discoloration methods of embodiment, also using sulfurous method clarification process or other clarification process to syrup
Carry out decolorization.
Contrast and experiment list.
Contrast experiment is according to the process of each embodiment, and decolorising agent uses H respectively2O2Or Vc substitutes the H of the application2O2- Vc is multiple
Close reagent, H2O2Or the additive amount and H of Vc2O2The additive amount of-Vc complex reagents is identical.
As can be seen from the above table, using H2O2- Vc complex reagents are as sugar juice decoloring agent with individually using H2O2Or Vc conducts
Decolorising agent is compared, and color value reduces（Percent of decolourization）At least more than 35% is improved, most multipotency improves 79%；Simple purity improves at least 0.3%,
Most multipotency improves 2.45%；Haze reduction at least more than 41%, most multipotency reduce by 75%.In conclusion using H2O2- Vc complex reagents
As sugar juice decoloring agent than individually using H2O2Or Vc is significantly good many as the effect of decolorising agent.
Claims (8)
1. a kind of syrup composite decoloring agent, it is characterised in that：The syrup composite decoloring agent is by H2O2With vitamin C composition
H2O2- Vc complex reagents, H2O2It is 0.01~10 with ascorbic mass ratio.
2. a kind of syrup composite decoloring agent according to claim 1, it is characterised in that：H2O2It is with ascorbic mass ratio
0.3~1.0.
A kind of 3. method of sugar juice decoloring, it is characterised in that：Using the H described in claims 1 or 22O2- Vc complex reagents are to sugar
Juice carries out decolorization, the syrup be one kind in mixed juice, juice, syrup and massecuite, two kinds, three kinds or four kinds, take off
In color processing procedure, H2O2The addition of-Vc complex reagents and the mass ratio of syrup are 10 × 10-6~2 × 10-3。
4. a kind of method of sugar juice decoloring according to claim 3, it is characterised in that：The syrup is mixed juice, is adopted
Use H2O2- Vc complex reagents decolourize to mixed juice, i.e., by H2O2- Vc complex reagents, which are added to from squeezer, to be come out, in stove drying
In mixed juice before, mixed juice flow and pumping procedure in or in tank is buffered with H2O2- Vc complex reagents carry out
It adequately mixes and reacts, so as to achieve the purpose that decoloration.
5. a kind of method of sugar juice decoloring according to claim 3, it is characterised in that：The syrup is juice, is used
H2O2- Vc complex reagents decolourize to juice, i.e., by H2O2- Vc complex reagents are added in juice, and juice is being flowed and pumped
In the process or in tank is buffered with H2O2- Vc complex reagents are adequately mixed and are reacted, so as to achieve the purpose that decoloration.
6. a kind of method of sugar juice decoloring according to claim 3, it is characterised in that：The syrup is syrup, is used
H2O2- Vc complex reagents decolourize to syrup, i.e., by H2O2- Vc complex reagents are added in syrup, the syrup be just from
Evaporation section come out raw sugar slurry or remelt syrup, syrup flow and pumping procedure in or in tank is buffered with H2O2-
Vc complex reagents are adequately mixed and are reacted, so as to achieve the purpose that decoloration.
7. a kind of method of sugar juice decoloring according to claim 3, it is characterised in that：The syrup is massecuite, is used
H2O2- Vc complex reagents decolourize to massecuite, i.e., by H2O2- Vc complex reagents are added in massecuite, and massecuite is being flowed and pumped
In the process or in tank is buffered with H2O2- Vc complex reagents are adequately mixed and are reacted, so as to achieve the purpose that decoloration.
8. a kind of method of sugar juice decoloring according to claim 3, it is characterised in that：The syrup is mixed juice, clear
Two kinds, three kinds or four kinds in juice, syrup and massecuite, directly by H2O2- Vc complex reagents are added in corresponding syrup, and syrup exists
Flowing and pumping procedure in or in tank is buffered with H2O2- Vc complex reagents are adequately mixed and are reacted, so as to reach
The purpose of decoloration.
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| CN201611249195.9A CN108251564B (en) | 2016-12-29 | 2016-12-29 | Sugar juice composite decoloring agent and sugar juice decoloring method |
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| CN201611249195.9A CN108251564B (en) | 2016-12-29 | 2016-12-29 | Sugar juice composite decoloring agent and sugar juice decoloring method |
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| CN109182609A (en) * | 2018-09-28 | 2019-01-11 | 广西科技大学 | A kind of swelling local method sugar-cane juice is without sulphur clarification process |
| CN110453016A (en) * | 2018-09-28 | 2019-11-15 | 广西科技大学 | A kind of method of the cane milling juice without sulphur clarification decoloration |
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| CN109182609A (en) * | 2018-09-28 | 2019-01-11 | 广西科技大学 | A kind of swelling local method sugar-cane juice is without sulphur clarification process |
| CN110453016A (en) * | 2018-09-28 | 2019-11-15 | 广西科技大学 | A kind of method of the cane milling juice without sulphur clarification decoloration |
| 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 |
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| CN108251564B (en) | 2021-08-24 |
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