CN109957626A - A kind of process control method for xylose crystalline - Google Patents
A kind of process control method for xylose crystalline Download PDFInfo
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- CN109957626A CN109957626A CN201910243154.6A CN201910243154A CN109957626A CN 109957626 A CN109957626 A CN 109957626A CN 201910243154 A CN201910243154 A CN 201910243154A CN 109957626 A CN109957626 A CN 109957626A
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- xylose
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
- C07H1/06—Separation; Purification
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H3/00—Compounds containing only hydrogen atoms and saccharide radicals having only carbon, hydrogen, and oxygen atoms
- C07H3/02—Monosaccharides
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K13/00—Sugars not otherwise provided for in this class
- C13K13/002—Xylose
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention discloses a kind of process control methods for xylose crystalline, and xylose saturated solution and surfactant are added in crystallizer simultaneously, are uniformly mixed, and control temperature at 25-30 DEG C, centrifugation, filtering obtain xylose crystals.The present invention makes crystallization temperature be reduced to 25-30 DEG C of centrifugation by 32 DEG C or more before, has the function of improving crystallization yield of xylose by adding surfactant during xylose crystalline.
Description
Technical field
The present invention is a kind of process control method for xylose crystalline, and in particular to the technique side for realizing xylose crystalline
Method belongs to technical field of xylose production.
Background technique
Xylose is a component of xylan, is widely present in plant hemicellulose, has and is not digested, promotes body
Immunocompetence reduces the multinomial healthcare function such as cholesterol, is at present one of with the important additives of food compatibility.The prior art
In, xylose mostly uses the acquirements such as the crust of the cob of the exhaust gas portion such as corn of agricultural product, stalk, cotton boll to arrive, main acid or enzyme
Make the xylan degrading in plant hemicellulose and obtains.To improve xylose yield, in xylose preparation process, it is also necessary to carry out
One important chemical process, i.e. xylose crystalline.It is known that influencing the following several factors that have of xylose crystalline effect: solvent,
Time, temperature, stirring and crystal seed, in addition to this, a kind of existing method for crystallising of xylitol of patent document CN102731252A(,
2014.11.26 it) also discloses one kind and surfactant sucrose fatty ester is added three times in xylitol crystallization process to mention
The method of high xylitol crystal resistive connection block effect.It is possible thereby to know, by being properly added auxiliary agent, Ke Yiti in crystallization process
The crystallization effect of high substance.
Xylose is needle crystals, appearance white fine crystalline or powder, sweet, at 20 DEG C solubility be can in 100g water
Xylose 51.24g is dissolved, under the conditions of same temperature, the viscosity of saturated solution is smaller than xylitol, glucose.To improve wood
The crystallization yield of sugar, the invention proposes a kind of process control methods for xylose crystalline.
Summary of the invention
The purpose of the present invention is to provide a kind of process control methods for xylose crystalline, by xylose crystalline process
Middle addition surfactant makes crystallization temperature be reduced to 25-30 DEG C of centrifugation, has the function of improving crystallization yield of xylose.
The present invention is achieved through the following technical solutions: xylose is saturated by a kind of process control method for xylose crystalline
Solution and surfactant are added in crystallizer simultaneously, are uniformly mixed, and control temperature at 25-30 DEG C, centrifugation, filtering obtain
To xylose crystals.
The xylose saturated solution is that xylose solution is made through acid degradation by plant hemicellulose, which passed through
After filtering ion-exchange purification, the xylose saturated solution that concentrator (MVR evaporator) is condensed into 75 DEG C is then reused.
The plant hemicellulose is selected from least one of cornstalk, stalk, bark, cotton, bamboo and is squeezed, is smashed
Slurry.
The acid is the sulfuric acid that concentration is 98%.
The degradation is that acid is added in plant hemicellulose, is uniformly mixed, and 2h is hydrolyzed at a temperature of 120 DEG C and is obtained
Xylose solution.
The surfactant is sucrose ester also known as sucrose fatty ester.
The additional amount of the surfactant is the 0.02-0.07% of xylose quality.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
(1) surfactant is added when xylose crystalline is fed in the method for the present invention, using food additives sucrose ester as surface
Activating agent can improve the interfacial tension of xylose saturated solution, and the mobility that can not only improve massecuite can also improve crystal face quality, reach
To the purpose for improving crystallization yield of xylose.
(2) in the method for the present invention, the additional amount for controlling surfactant is the 0.002-0.007% of xylose quality, can be significant
Raising massecuite mobility, for improve crystallization yield of xylose contribute.
(3) the method for the present invention in crystallizer simultaneously xylose saturated solution and surfactant is added, make crystallization temperature by
32 DEG C or more before are reduced to 25-30 DEG C of centrifugation, improve crystallization yield of xylose.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1:
The present embodiment proposes a kind of process control method for xylose crystalline.
Using cotton squeezing, smashed slurry as plant hemicellulose raw material, in 100g plant hemicellulose raw material
1000ml water is added, the sulfuric acid that 2ml concentration is 98% is then added, is uniformly mixed, is then warming up in confined conditions
120 DEG C of holding 2h, obtain xylose solution, and xylose solution is concentrated to form 75 DEG C after filtering ion-exchange purification using MVR evaporator
Xylose saturated solution.
By xylose saturated solution and sucrose ester that the above process is prepared while being added in crystallizer, the addition of sucrose ester
Amount is the 0.05% of xylose quality, is uniformly mixed, and cools down by program temperature being reduced to 25 DEG C by 75 DEG C, then drain into
The centrifuge that revolving speed is 3000r/min is centrifuged 10min, obtains xylose crystals.
Embodiment 2:
The present embodiment proposes a kind of process control method for xylose crystalline.
It is former in 100g plant hemicellulose using cornstalk squeezing, smashed slurry as plant hemicellulose raw material
1000ml water is added in material, the sulfuric acid that 2ml concentration is 98% is then added, is uniformly mixed, then heats up in confined conditions
To 120 DEG C of holding 2h, xylose solution is obtained, xylose solution is concentrated to form 75 after filtering ion-exchange purification using MVR evaporator
DEG C xylose saturated solution.
By xylose saturated solution and sucrose ester that the above process is prepared while being added in crystallizer, the addition of sucrose ester
Amount is the 0.04% of xylose quality, is uniformly mixed, and cools down by program temperature being reduced to 27 DEG C by 75 DEG C, then drain into
The centrifuge that revolving speed is 3000r/min is centrifuged 10min, obtains xylose crystals.
Embodiment 3:
The present embodiment proposes a kind of process control method for xylose crystalline.
Using stalk squeezing, smashed slurry as plant hemicellulose raw material, in 100g plant hemicellulose raw material
Then middle addition 1000ml water is added the sulfuric acid that 2ml concentration is 98%, is uniformly mixed, is then warming up in confined conditions
120 DEG C of holding 2h, obtain xylose solution, and xylose solution is concentrated to form 75 DEG C after filtering ion-exchange purification using MVR evaporator
Xylose saturated solution.
By xylose saturated solution and sucrose ester that the above process is prepared while being added in crystallizer, the addition of sucrose ester
Amount is the 0.06% of xylose quality, is uniformly mixed, and cools down by program temperature being reduced to 30 DEG C by 75 DEG C, then drain into
The centrifuge that revolving speed is 3000r/min is centrifuged 10min, obtains xylose crystals.
Embodiment 4:
The present embodiment proposes a kind of process control method for xylose crystalline.
Using cornstalk, stalk squeezing, smashed slurry as plant hemicellulose raw material, in 100g plant hemicellulose
1000ml water is added in plain raw material, the sulfuric acid that 2ml concentration is 98% is then added, is uniformly mixed, then in confined conditions
120 DEG C of holding 2h are warming up to, xylose solution is obtained, shape is concentrated using MVR evaporator after filtering ion-exchange purification in xylose solution
At 75 DEG C of xylose saturated solution.
By xylose saturated solution and sucrose ester that the above process is prepared while being added in crystallizer, the addition of sucrose ester
Amount is the 0.05% of xylose quality, is uniformly mixed, and cools down by program temperature being reduced to 30 DEG C by 75 DEG C, then drain into
The centrifuge that revolving speed is 3000r/min is centrifuged 10min, obtains xylose crystals.
Embodiment 5:
The present embodiment proposes a kind of process control method for xylose crystalline.
Using stalk squeezing, smashed slurry as plant hemicellulose raw material, in 100g plant hemicellulose raw material
Then middle addition 1000ml water is added the sulfuric acid that 2ml concentration is 98%, is uniformly mixed, is then warming up in confined conditions
120 DEG C of holding 2h, obtain xylose solution, and xylose solution is concentrated to form 75 DEG C after filtering ion-exchange purification using MVR evaporator
Xylose saturated solution.
By xylose saturated solution and sucrose ester that the above process is prepared while being added in crystallizer, the addition of sucrose ester
Amount is the 0.05% of xylose quality, is uniformly mixed, and cools down by program temperature being reduced to 30 DEG C by 75 DEG C, then drain into
The centrifuge that revolving speed is 3000r/min is centrifuged 10min, obtains xylose crystals.
Embodiment 6:
The present embodiment proposes a kind of process control method for xylose crystalline.
It is former in 100g plant hemicellulose using cornstalk squeezing, smashed slurry as plant hemicellulose raw material
1000ml water is added in material, the sulfuric acid that 2ml concentration is 98% is then added, is uniformly mixed, then heats up in confined conditions
To 120 DEG C of holding 2h, xylose solution is obtained, xylose solution is concentrated to form 75 after filtering ion-exchange purification using MVR evaporator
DEG C xylose saturated solution.
By xylose saturated solution and sucrose ester that the above process is prepared while being added in crystallizer, the addition of sucrose ester
Amount is the 0.02% of xylose quality, is uniformly mixed, and cools down by program temperature being reduced to 25 DEG C by 75 DEG C, then drain into
The centrifuge that revolving speed is 3000r/min is centrifuged 10min, obtains xylose crystals.
Embodiment 7:
The present embodiment proposes a kind of process control method for xylose crystalline.
Using cotton, bamboo squeezing, smashed slurry as plant hemicellulose raw material, in 100g plant hemicellulose raw material
Then middle addition 1000ml water is added the sulfuric acid that 2ml concentration is 98%, is uniformly mixed, is then warming up in confined conditions
120 DEG C of holding 2h, obtain xylose solution, and xylose solution is concentrated to form 75 DEG C after filtering ion-exchange purification using MVR evaporator
Xylose saturated solution.
By xylose saturated solution and sucrose ester that the above process is prepared while being added in crystallizer, the addition of sucrose ester
Amount is the 0.07% of xylose quality, is uniformly mixed, and cools down by program temperature being reduced to 28 DEG C by 75 DEG C, then drain into
The centrifuge that revolving speed is 3000r/min is centrifuged 10min, obtains xylose crystals.
Embodiment 8:
The present embodiment proposes a kind of process control method for xylose crystalline.
Using bark presses, smashed slurry as plant hemicellulose raw material, in 100g plant hemicellulose raw material
Then middle addition 1000ml water is added the sulfuric acid that 2ml concentration is 98%, is uniformly mixed, is then warming up in confined conditions
120 DEG C of holding 2h, obtain xylose solution, and xylose solution is concentrated to form 75 DEG C after filtering ion-exchange purification using MVR evaporator
Xylose saturated solution.
By xylose saturated solution and sucrose ester that the above process is prepared while being added in crystallizer, the addition of sucrose ester
Amount is the 0.05% of xylose quality, is uniformly mixed, and cools down by program temperature being reduced to 28 DEG C by 75 DEG C, then drain into
The centrifuge that revolving speed is 3000r/min is centrifuged 10min, obtains xylose crystals.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit any simple modification to the above embodiments of the invention, equivalent variations, protection of the invention is each fallen within
Within the scope of.
Claims (7)
1. a kind of process control method for xylose crystalline, it is characterised in that: xylose saturated solution and surfactant is same
When be added crystallizer in, be uniformly mixed, control temperature at 25-30 DEG C, centrifugation, filtering, obtain xylose crystals.
2. a kind of process control method for xylose crystalline according to claim 1, it is characterised in that: the xylose is full
It is that xylose solution is made through acid degradation by plant hemicellulose with solution, then reuses the xylose that concentrator is condensed into 75 DEG C
Saturated solution.
3. a kind of process control method for xylose crystalline according to claim 2, it is characterised in that: the plant half
Cellulose is selected from least one of cornstalk, stalk, bark, cotton, bamboo through squeezing, smashed slurry.
4. a kind of process control method for xylose crystalline according to claim 2, it is characterised in that: the acid is dense
The sulfuric acid that degree is 98%.
5. a kind of process control method for xylose crystalline according to claim 2, it is characterised in that: the degradation is
Acid is added in plant hemicellulose, is uniformly mixed, 2h is hydrolyzed at a temperature of 120 DEG C and obtains xylose solution.
6. a kind of process control method for xylose crystalline according to claim 1, it is characterised in that: the surface is living
Property agent be sucrose ester.
7. a kind of process control method for xylose crystalline according to claim 1, it is characterised in that: the surface is living
Property agent additional amount be xylose quality 0.02-0.07%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910243154.6A CN109957626A (en) | 2019-03-28 | 2019-03-28 | A kind of process control method for xylose crystalline |
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| CN201910243154.6A CN109957626A (en) | 2019-03-28 | 2019-03-28 | A kind of process control method for xylose crystalline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113004346A (en) * | 2021-02-07 | 2021-06-22 | 济南茂腾生物科技有限公司 | Method for preparing xylose by negative pressure coupling normal pressure crystallization |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3476598A (en) * | 1966-05-10 | 1969-11-04 | Varney Chem Corp | Sucrose based surfactants as aids in sugar refining and sugar crystallization processes |
| CN102731252A (en) * | 2012-06-28 | 2012-10-17 | 浙江华康药业股份有限公司 | Crystallization method for xylitol or maltol |
-
2019
- 2019-03-28 CN CN201910243154.6A patent/CN109957626A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3476598A (en) * | 1966-05-10 | 1969-11-04 | Varney Chem Corp | Sucrose based surfactants as aids in sugar refining and sugar crystallization processes |
| CN102731252A (en) * | 2012-06-28 | 2012-10-17 | 浙江华康药业股份有限公司 | Crystallization method for xylitol or maltol |
Non-Patent Citations (3)
| Title |
|---|
| 杨瑞金 等: "果糖结晶性能的研究", 《食品工业科技》 * |
| 梁朝昱等: "木糖制备技术研究进展", 《广西糖业》 * |
| 钱朋智等: "甘蔗叶水解生产木糖工艺研究", 《中国糖料》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113004346A (en) * | 2021-02-07 | 2021-06-22 | 济南茂腾生物科技有限公司 | Method for preparing xylose by negative pressure coupling normal pressure crystallization |
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