CN109867803A - A kind of method that high concentration plate mill prepares hemicellulose film - Google Patents
A kind of method that high concentration plate mill prepares hemicellulose film Download PDFInfo
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- CN109867803A CN109867803A CN201910078689.2A CN201910078689A CN109867803A CN 109867803 A CN109867803 A CN 109867803A CN 201910078689 A CN201910078689 A CN 201910078689A CN 109867803 A CN109867803 A CN 109867803A
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- hemicellulose
- film
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- plate mill
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Abstract
The invention belongs to biological material technical fields, and in particular to a kind of method that high concentration plate mill prepares hemicellulose film.A kind of method that high concentration plate mill prepares hemicellulose film, comprising the following steps: enzymatic hydrolysis, mashing are stirred and air-dried.Method of the invention prepares hemicellulose film using enzyme pretreatment combination mechanical milling method, can reduce energy consumption, improves efficiency, and does not add chemical reagent during preparing, and environmental pollution is small.
Description
Technical field
The invention belongs to biological material technical fields, and in particular to a kind of high concentration plate mill prepares hemicellulose film
Method.
Background technique
Hemicellulose is the polysaccharide of abundance, only fewer than cellulose, accounts for renewable biomass resources on the earth
One third.Hemicellulose is considered as that most abundant, most cheap on the earth can be used for preparing biomass substrate degradable membrane material
One of renewable resource of material.Hemicellulose have it is renewable, facilitate film forming, degradable modification, processing performance by force, raw material sources
Equal advantage extensively.With the further investigation to hemicellulose by hemicellulose membrane be applied to packaging material, food package film with
And edible food coating film has become the hot spot of current research.
The method of separating-purifying hemicellulose has diluted acid preextraction method, hot water preextraction method, alkali preextraction method, microwave at present
Preextraction method etc. carrys out the higher hemicellulose of separating-purifying concentration there are no relatively good method and does not destroy hemicellulose original
Beginning structure.The extract of hemicellulose is often muddiness, and colloid or smaller particle are contained in extract, they are usually tacky
So that (such as filter surfaces) form deposit film on the surface.Therefore, using enzyme pretreatment combination mechanical milling method preparation half
Cellophane can reduce energy consumption, improve efficiency, and avoids hemicellulose colloidal solid in conventional method and block filter
The phenomenon that.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of methods that high concentration plate mill prepares hemicellulose film, above-mentioned existing to overcome
There is technical problem.
A kind of method that high concentration plate mill prepares hemicellulose film, comprising the following steps:
S1. raw material is subjected to enzymolysis processing, obtains slurry；
S2. slurry is poured into high concentration plate mill to be beaten, obtains slurries after the completion of mashing, take the upper layer of gained slurries clear
Liquid measures hemicellulose level；
S3. the identical slurries of hemicellulose level are poured into blender and is stirred, 100m slurries are taken out after the completion of stirring and are fallen
Enter film applicator；
S4. film applicator baking oven baking is put into go after moisture to move into draught cupboard to air-dry to get hemicellulose film.
Preferably, raw material described in S1 is corncob, bagasse or Eucalyptus, the concentration of the slurry is 30%.
Preferably, the enzyme used when enzymolysis processing described in S1 is zytase.
Preferably, the condition of enzymolysis processing described in S1 is enzyme additive amount 30u/g, temperature 50 C, time 30min.
Preferably, mashing number described in S2 is 20-28 times.
The amount that the supernatant liquor is taken when preferably, measuring hemicellulose level in S2 is 250mL.
Preferably, hemicellulose level described in S3 is 21.20-21.33%, the concentration of slurry is 0.13%, institute
The revolving speed for stating blender is 2000rpm, mixing time 60min.
Preferably, oven drying temperature described in S4 is 40 DEG C.
The principle of the present invention are as follows: hemicellulose is connect with lignin by covalent bond and ehter bond, and hemicellulose and cellulose are logical
Hydrogen bond connection is crossed, is pre-processed with zytase, cellulose macromolecule is exposed, can be tieed up, be accelerated with softening, swollen chemical fibre
Cellulose fibrillation is repeatedly beaten using high concentration plate mill, is destroyed with mechanical stirring shearing force by fiber macromolecular, dew
More fiber fines and hemicellulose out.
Compared with the nearest prior art, the invention has the following beneficial effects:
1. the method for preparing hemicellulose film of the invention is used with excellent biodegradable, cheap and easy to get, right
Environmental-friendly raw material prepares hemicellulose film, and the preparation for biomass sill provides new approaches；
2. the method for preparing hemicellulose film of the invention prepares hemicellulose using enzyme pretreatment combination mechanical milling method
Plain film can reduce energy consumption, improve efficiency.
3. the present invention prepares in the preparation process of hemicellulose film process and do not add chemical reagent, environmental pollution is small, work
Skill is easy, and process is simple, small investment.
4. there is excellent flexibility and excellent barrier property using the hemicellulose film that the present invention prepares.
Specific embodiment
Specific embodiments of the present invention will be described in detail below, it is to be understood that protection scope of the present invention is not
It is restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
Embodiment 1
A kind of method that high concentration plate mill prepares hemicellulose film, comprising the following steps:
S1. raw material is subjected to enzymolysis processing, obtains slurry；
S2. slurry is poured into high concentration plate mill to be beaten, obtains slurries after the completion of mashing, take the upper layer of gained slurries clear
Liquid measures hemicellulose level；
S3. the identical slurries of hemicellulose level are poured into blender and is stirred, 100m slurries are taken out after the completion of stirring and are fallen
Enter film applicator；
S4. film applicator baking oven baking is put into go after moisture to move into draught cupboard to air-dry to get hemicellulose film；
Wherein, in S1, the raw material is bagasse, and the concentration of the slurry is 30%, the enzyme that when enzymolysis processing uses
For zytase, the condition of enzymolysis processing is enzyme additive amount 30u/g, temperature 50 C, time 30min；In S2, the mashing number
It is 20 times, it is 250mL that the amount of the supernatant liquor is taken when measuring hemicellulose level；In S3, the hemicellulose level is
21.20%, the concentration of slurry is 0.13%, and the revolving speed of the blender is 2000rpm, mixing time 60min, the baking
Case drying temperature is 40 DEG C.
Embodiment 2
A kind of method that high concentration plate mill prepares hemicellulose film, comprising the following steps:
S1. raw material is subjected to enzymolysis processing, obtains slurry；
S2. slurry is poured into high concentration plate mill to be beaten, obtains slurries after the completion of mashing, take the upper layer of gained slurries clear
Liquid measures hemicellulose level；
S3. the identical slurries of hemicellulose level are poured into blender and is stirred, 100m slurries are taken out after the completion of stirring and are fallen
Enter film applicator；
S4. film applicator baking oven baking is put into go after moisture to move into draught cupboard to air-dry to get hemicellulose film；
Wherein, in S1, the raw material is bagasse, and the concentration of the slurry is 30%, the enzyme that when enzymolysis processing uses
For zytase, the condition of enzymolysis processing is enzyme additive amount 30u/g, temperature 50 C, time 30min；S2, described in be beaten number
It is 24 times, it is 250mL that the amount of the supernatant liquor is taken when measuring hemicellulose level；In S3, the hemicellulose level is
21.33%, the concentration of slurry is 0.13%, and the revolving speed of the blender is 2000rpm, mixing time 60min, the baking
Case drying temperature is 40 DEG C.
Embodiment 3
A kind of method that high concentration plate mill prepares hemicellulose film, comprising the following steps:
S1. raw material is subjected to enzymolysis processing, obtains slurry；
S2. slurry is poured into high concentration plate mill to be beaten, obtains slurries after the completion of mashing, take the upper layer of gained slurries clear
Liquid measures hemicellulose level；
S3. the identical slurries of hemicellulose level are poured into blender and is stirred, 100m slurries are taken out after the completion of stirring and are fallen
Enter film applicator；
S4. film applicator baking oven baking is put into go after moisture to move into draught cupboard to air-dry to get hemicellulose film；
Wherein, in S1, the raw material is bagasse, and the concentration of the slurry is 30%, the enzyme that when enzymolysis processing uses
For zytase, the condition of enzymolysis processing is enzyme additive amount 30u/g, temperature 50 C, time 30min；S2, described in be beaten number
It is 26 times, it is 250mL that the amount of the supernatant liquor is taken when measuring hemicellulose level；In S3, the hemicellulose level is
21.31%, the concentration of slurry is 0.13%, and the revolving speed of the blender is 2000rpm, mixing time 60min, the baking
Case drying temperature is 40 DEG C.
Embodiment 4
A kind of method that high concentration plate mill prepares hemicellulose film, comprising the following steps:
S1. raw material is subjected to enzymolysis processing, obtains slurry；
S2. slurry is poured into high concentration plate mill to be beaten, obtains slurries after the completion of mashing, take the upper layer of gained slurries clear
Liquid measures hemicellulose level；
S3. the identical slurries of hemicellulose level are poured into blender and is stirred, 100m slurries are taken out after the completion of stirring and are fallen
Enter film applicator；
S4. film applicator baking oven baking is put into go after moisture to move into draught cupboard to air-dry to get hemicellulose film；
Wherein, in S1, the raw material is bagasse, and the concentration of the slurry is 30%, the enzyme that when enzymolysis processing uses
For zytase, the condition of enzymolysis processing is enzyme additive amount 30u/g, temperature 50 C, time 30min；S2, described in be beaten number
It is 28 times, it is 250mL that the amount of the supernatant liquor is taken when measuring hemicellulose level；In S3, the hemicellulose level is
21.25%, the concentration of slurry is 0.13%, and the revolving speed of the blender is 2000rpm, mixing time 60min, the baking
Case drying temperature is 40 DEG C.
The hemicellulose of the method preparation of hemicellulose film is prepared to high concentration plate mill described in Application Example 1-4
The film property of film can be carried out detection, and testing result see the table below 1.
The film properties testing result of 1 hemicellulose film of table
As can be seen from Table 1, the method preparation of hemicellulose film is prepared using high concentration plate mill of the present invention
Hemicellulose film, film thickness are 75-110 μm, tensile strength 35-43Mpa, elongation at break 8-10%, vapor
Transit dose 350-430g/m2D, crystallinity 75-80%.Have using hemicellulose film prepared by the present invention excellent soft
Property and excellent barrier property.
In conclusion prepared by the present invention do not add chemical reagent in the preparation process of hemicellulose film process, environment is dirty
Contaminate small, simple process, process is simple, and low energy consumption, high-efficient, and the hemicellulose film prepared have excellent flexibility and
Excellent barrier property.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (8)
1. a kind of method that high concentration plate mill prepares hemicellulose film, which comprises the following steps:
S1. raw material is subjected to enzymolysis processing, obtains slurry；
S2. slurry is poured into high concentration plate mill to be beaten, obtains slurries after the completion of mashing, the supernatant liquor of gained slurries is taken to survey
Determine hemicellulose level；
S3. the identical slurries of hemicellulose level are poured into blender and is stirred, 100m slurries are taken out after the completion of stirring and pour into system
Diaphragm；
S4. film applicator baking oven baking is put into go after moisture to move into draught cupboard to air-dry to get hemicellulose film.
2. the method that high concentration plate mill according to claim 1 prepares hemicellulose film, which is characterized in that described in S1
Raw material is corncob, bagasse or Eucalyptus, and the concentration of the slurry is 30%.
3. the method that high concentration plate mill according to claim 1 prepares hemicellulose film, which is characterized in that described in S1
The enzyme used when enzymolysis processing is zytase.
4. the method that high concentration plate mill according to claim 1 prepares hemicellulose film, which is characterized in that described in S1
The condition of enzymolysis processing is enzyme additive amount 30u/g, temperature 50 C, time 30min.
5. the method that high concentration plate mill according to claim 1 prepares hemicellulose film, which is characterized in that described in S2
Being beaten number is 20-28 times.
6. the method that high concentration plate mill according to claim 1 prepares hemicellulose film, which is characterized in that measured in S2
The amount that the supernatant liquor is taken when hemicellulose level is 250mL.
7. the method that high concentration plate mill according to claim 1 prepares hemicellulose film, which is characterized in that described in S3
Hemicellulose level is 21.20-21.31%, and the concentration of the slurries is 0.13%, and the revolving speed of the blender is 2000rpm,
Mixing time is 60min.
8. the method that high concentration plate mill according to claim 1 prepares hemicellulose film, which is characterized in that described in S4
Oven drying temperature is 40 DEG C.
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| CN201910078689.2A CN109867803A (en) | 2019-01-28 | 2019-01-28 | A kind of method that high concentration plate mill prepares hemicellulose film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452402A (en) * | 2019-08-07 | 2019-11-15 | 广西大学 | A kind of method that Mechanical Method prepares hydrophobic high permeable fiber film |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008103123A2 (en) * | 2007-02-19 | 2008-08-28 | Xylophane Aktiebolag | Polymeric film or coating comprising hemicellulose |
| CN103556517A (en) * | 2013-10-31 | 2014-02-05 | 昆明理工大学 | Method for improving oxygen-alkali pulping effect through laccase pretreatment |
| CN104450830A (en) * | 2015-01-04 | 2015-03-25 | 南京林业大学 | Method for producing multiple kinds of monosaccharide through bamboo processing residues |
| CN105732846A (en) * | 2016-03-24 | 2016-07-06 | 广西壮族自治区中国科学院广西植物研究所 | Straw pretreatment method for extracting hemicellulose |
-
2019
- 2019-01-28 CN CN201910078689.2A patent/CN109867803A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008103123A2 (en) * | 2007-02-19 | 2008-08-28 | Xylophane Aktiebolag | Polymeric film or coating comprising hemicellulose |
| CN103556517A (en) * | 2013-10-31 | 2014-02-05 | 昆明理工大学 | Method for improving oxygen-alkali pulping effect through laccase pretreatment |
| CN104450830A (en) * | 2015-01-04 | 2015-03-25 | 南京林业大学 | Method for producing multiple kinds of monosaccharide through bamboo processing residues |
| CN105732846A (en) * | 2016-03-24 | 2016-07-06 | 广西壮族自治区中国科学院广西植物研究所 | Straw pretreatment method for extracting hemicellulose |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452402A (en) * | 2019-08-07 | 2019-11-15 | 广西大学 | A kind of method that Mechanical Method prepares hydrophobic high permeable fiber film |
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Application publication date: 20190611 |