CN100560821C - Method for Degumming Jute Using Compound Enzyme - Google Patents
Method for Degumming Jute Using Compound Enzyme Download PDFInfo
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- CN100560821C CN100560821C CNB2007101225962A CN200710122596A CN100560821C CN 100560821 C CN100560821 C CN 100560821C CN B2007101225962 A CNB2007101225962 A CN B2007101225962A CN 200710122596 A CN200710122596 A CN 200710122596A CN 100560821 C CN100560821 C CN 100560821C
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Abstract
The method that a kind of applying composite enzyme comes unstuck to jute, described complex enzyme comprises pectase and laccase, may further comprise the steps: will jute be flooded by the complex enzyme aqueous solution that pectase and laccase are mixed with, the weight ratio of the described complex enzyme aqueous solution and jute is 12: 1-40: 1; Adjusting described complex enzyme pH value of aqueous solution is 5.0-5.5, and is warming up to 55 ℃-60 ℃, keeps 25-50 minute; The pH value of adjusting solution then is 7.5-8.0, keeps 15-24 minute under 60 ℃-70 ℃ temperature; Jute after handling through described complex enzyme is carried out enzyme deactivation handles.The method step that applying composite enzyme of the present invention comes unstuck to jute is simple, the removal lignin is effective.
Description
Technical field
The present invention relates to a kind of jute degumming method, particularly relate to the method that a kind of applying composite enzyme comes unstuck to jute.
Background technology
Because flax fibre has sucting wet air permeability, low static behaviour and good antibacterial characteristics preferably, crudefiber crop fabric clothing lining more and more is subjected to people's favor.The lining of existing crudefiber crop fabric clothing is meant that mainly flax, ramie raw materials or this type of raw material and other fiber carry out blending/interweave as cotton, wool, chemical fibre, silk etc. and make, but, make that the crudefiber crop textiles does not have to be more widely used because flax, ramie price are higher.And jute is the second-biggest-in-the-world cellulose fibre that is only second to cotton, and it is cheap, and compares with flax, ramie and to have better hygroscopicity and drapability, and antibacterial ability is only second to hemp, has huge using value and potentiality to be exploited.But because the content of lignin in the jute is higher, higher several times than flax, to use common Degumming method and tossa is come unstuck, removes lignin be difficult to obtain desirable effect, this has restricted the application of jute aspect garment material greatly." Tianjin University of Technology's journal " August the 24th in 2005, the influence that cellulase, hemicellulase, lignoenzyme and pectin depolymerase are handled tossa studied in volume the 4th phase " enzyme is handled a tossa Effect on Performance " literary composition, what but this article was mainly studied is to utilize above-mentioned various enzyme separately tossa to be handled respectively, even wherein mentioning complex enzyme handles, also only be to utilize laccase and hemicellulase compound with cellulase respectively, facts have proved that this article disclosed method is unsatisfactory to the effect that tossa comes unstuck, removes lignin.Chinese patent literature CN1232691C discloses the method that a kind of applying composite enzyme comes unstuck to jute, this method with the complex enzyme of pectase and laccase to the tossa processing of coming unstuck, the tossa of gained through with other fiber as cotton, chemical fibre blending or interweave and can satisfy the requirement of garment material substantially.But above-mentioned patent documentation disclosed method is desirable not enough to the removal of lignin impurity in the tossa, clearance only is about 76%, the content of lignin is still higher in the tossa of gained, and mechanical performances such as the intensity of resulting tossa, elongation at break and physical property are unsatisfactory, therefore need with other fiber as cotton, chemical fibre blending or interweave, the quality of the garment material that makes is still waiting further raising.
Summary of the invention
For this reason, the method that provides a kind of applying composite enzyme that jute is come unstuck is provided technical problem to be solved by this invention, and this method can effectively be removed pectin and the lignin impurity in the tossa, obtains the good tossa of combination property.
For solving the problems of the technologies described above, technical scheme of the present invention is: the method that a kind of applying composite enzyme comes unstuck to jute, and described complex enzyme comprises pectase and laccase, may further comprise the steps:
A. will jute be flooded by the complex enzyme aqueous solution that pectase and laccase are mixed with, the weight ratio of the described complex enzyme aqueous solution and jute is 12: 1-40: 1;
B. adjusting described complex enzyme pH value of aqueous solution is 5.0-5.5, and is warming up to 55 ℃-60 ℃, keeps 25-50 minute;
C. the pH value of adjusting solution then is 7.5-8.0, keeps 15-24 minute under 60 ℃-70 ℃ temperature;
D. the jute after handling through described complex enzyme being carried out enzyme deactivation handles.
Said method also is included in described steps d and carries out the step that synergy is banked up and handled before.
Said method, described synergy time of handling of banking up is 6-24 hour.
Said method, the enzyme deactivation in the described steps d are treated to the high temperature washing or regulate the pH value and carry out enzyme deactivation processing, perhaps both combinations.
Said method, the weight ratio of pectase is 30-90% in the described complex enzyme.
Said method, the weight ratio of described complex enzyme and jute are 0.5: 100-5: 100.
Said method, the temperature of water is more than 75 ℃ when carrying out the washing of described high temperature; PH value when adjusting pH value is carried out the enzyme deactivation processing is more than 10.0 or less than 4.0.
Said method also is included in described step a and before jute is carried out pretreated step.
Said method, described preliminary treatment are one or more the combination in water-bath, acid bath or the hydrogen peroxide dipping.The temperature of described water-bath is 30 ℃ to 100 ℃; Use sulfuric acid or acetic acid during described acid bath.
Characteristics and content at pectin in the jute and lignin self, for under the situation that guarantees effectively to remove pectin and lignin in the tossa, can obtain to have better intensity, the tossa of mechanical performances such as elongation at break and physical property, jute complex enzyme degumming method of the present invention, chosen the technological parameter that is complementary, especially in the active higher pH scope of pectase, shorten in the temperature retention time to 25 minute, to reduce infringement to fiber, and other each parameter is adjusted in cooperation, make that Degumming method of the present invention can obtain to have better intensity under the situation that guarantees effectively to remove pectin and lignin in the tossa, the tossa of mechanical performances such as elongation at break and physical property.
Compared with prior art, technical scheme of the present invention has the following advantages: (1) method of the present invention adopts complex enzyme to the tossa processing of coming unstuck, and before carrying out the high temperature washing or regulate the processing of pH value inactivation, the jute after complex enzyme is handled carries out the synergy processing of banking up, can remove pectin and lignin in the tossa effectively, its pectin clearance is about 90%, reach as high as 96%, lignin removing rate reaches more than 79%, reach as high as 86%, the tossa after the coming unstuck of acquisition has higher spinnability.(2) simultaneously in pectinase activity higher pH scope, shorten in the temperature retention time to 25 minute, to reduce infringement to fiber, and other each parameter is adjusted in cooperation, make under the situation that guarantees effectively to remove pectin and lignin in the tossa, Degumming method of the present invention can obtain to have better intensity, (TENSILE STRENGTH can improve more than 2 times the tossa of combination properties such as mechanical performances such as elongation at break and physical property, reach 6-9dN/tex, elongation at break can improve more than 1.5 times, can reach about 5-8%), the length and the fineness of its flax fibre are complementary, thereby improve spinnability; (3) method of the present invention had been carried out preliminary treatment before to the jute complex enzyme degumming, jute has been played expanded preferably effect, to weaken the associating power between filament, be more conducive to enzyme liquid and contact with the direct of flax fibre, can better remove pectin and lignin in the tossa.
The specific embodiment
Embodiment 1
To unpack by the jute that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And carry out the water-bath preliminary treatment, and the temperature of water-bath is 65 ℃, temperature retention time is 2 hours;
Pectase and laccase were mixed with complex enzyme by weight 3: 7, press with jute and got the complex enzyme that configures, and be diluted with water to 12 times of jute weight, jute is flooded with the complex enzyme aqueous solution after the dilution by weight 0.5: 100;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.5, is warming up to 55 ℃, keeps 50 minutes; PH value with the sodium bicarbonate regulator solution is 7.5 then, is warming up to 60 ℃, keeps 15 minutes;
Then jute is taken out from solution and bank up carrying out the synergy processing of banking up, synergy time of handling of banking up is 24 hours;
To carry out hot water with 80 ℃ hot water and clean through bank up jute after handling of synergy, to carry out the enzyme deactivation processing, promptly obtain come unstuck after tossa, the clearance of pectin and lignin is as shown in table 1 in the tossa after resulting the coming unstuck.
Tossa after above-mentioned the coming unstuck is carried out bleaching, strikes the tossa product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 2
To unpack by the jute that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And carry out acid bath and water-bath preliminary treatment, and used acid is that concentration is the concentrated sulfuric acid more than 90%, and the temperature of water-bath is 30 ℃, and temperature retention time is 1 hour;
Pectase and laccase were mixed with complex enzyme by weight 9: 1, press with jute and got the complex enzyme that configures, and be diluted with water to 40 times of jute weight, jute is flooded with the complex enzyme aqueous solution after the dilution by weight 5: 100;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.0, is warming up to 60 ℃, keeps 25 minutes; PH value with the sodium bicarbonate regulator solution is 7.5 then, is warming up to 65 ℃, keeps 16 minutes;
Then jute is taken out from solution and bank up carrying out the synergy processing of banking up, synergy time of handling of banking up is 6 hours;
To carry out hot water with 95 ℃ hot water and clean through bank up jute after handling of synergy, to carry out the enzyme deactivation processing, promptly obtain come unstuck after tossa, the clearance of pectin and lignin is as shown in table 1 in the tossa after resulting the coming unstuck.
Tossa after above-mentioned the coming unstuck is carried out bleaching, strikes the tossa product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 3
To unpack by the jute that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And jute carried out the acid bath preliminary treatment, used acid is that concentration is the acetic acid more than 90%.
Pectase and laccase were mixed with complex enzyme by weight 1: 1, press with jute and got the complex enzyme that configures, and be diluted with water to 20 times of jute weight, jute is flooded with the complex enzyme aqueous solution after the dilution by weight 1: 100;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.0, is warming up to 55 ℃, keeps 30 minutes; PH value with the sodium bicarbonate regulator solution is 8.0 then, is warming up to 70 ℃, keeps 17 minutes;
Then jute being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 10 hours;
To carry out hot water with 85 ℃ hot water and clean through bank up jute after handling of synergy, to carry out the enzyme deactivation processing, promptly obtain come unstuck after tossa, the clearance of pectin and lignin is as shown in table 1 in the tossa after resulting the coming unstuck.
Tossa after above-mentioned the coming unstuck is carried out bleaching, strikes the tossa product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 4
To unpack by the jute that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And carry out the hydrogen peroxide dipping preliminary treatment, the concentration of used hydrogen peroxide is 5g/L;
Pectase and laccase were mixed with complex enzyme by weight 2: 1, press with jute and got the complex enzyme that configures, and be diluted with water to 30 times of jute weight, jute is flooded with the complex enzyme aqueous solution after the dilution by weight 2: 100;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.3, is warming up to 58 ℃, keeps 40 minutes; PH value with the sodium bicarbonate regulator solution is 7.8 then, is warming up to 69 ℃ and keeps 19 minutes;
Then jute being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 15 hours;
Will through synergy bank up after handling jute with the pH value be 10.0, temperature is that 90 ℃ hot water cleans, handle to carry out enzyme deactivation, promptly obtain come unstuck after tossa, the clearance of pectin and lignin is as shown in table 1 in the tossa after resulting the coming unstuck.
Tossa after above-mentioned the coming unstuck is carried out bleaching, strikes the tossa product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 5
To unpack by the jute that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram; And carry out the water-bath preliminary treatment, and the temperature of described water-bath is 100 ℃, temperature retention time is half an hour;
Pectase and laccase were mixed with complex enzyme by weight 5: 1, press with jute and got the complex enzyme that configures, and be diluted with water to 12 times of jute weight, jute is flooded with the complex enzyme aqueous solution after the dilution by weight 3: 100;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.0, is warming up to 55 ℃, keeps 50 minutes;
PH value with the sodium bicarbonate regulator solution is 7.7 then, is warming up to 65 ℃, keeps 20 minutes;
Then jute being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 20 hours;
The jute that to bank up after handling through synergy is that 3.0 the aqueous solution cleans with pH value, to carry out the enzyme deactivation processing, promptly obtain come unstuck after tossa, the clearance of pectin and lignin is as shown in table 1 in the tossa after resulting the coming unstuck.Therefrom as can be seen, the effect of using technical scheme among this embodiment is one of optimum.
Tossa after above-mentioned the coming unstuck is carried out bleaching, strikes the tossa product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 6
To unpack by the jute that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram;
Pectase and laccase were mixed with complex enzyme by weight 4: 1, press with jute and got the complex enzyme that configures, and be diluted with water to 14 times of jute weight, jute is flooded with the complex enzyme aqueous solution after the dilution by weight 4: 100;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.0, is warming up to 60 ℃, keeps 40 minutes; PH value with the sodium bicarbonate regulator solution is 8.0 then, is warming up to 65 ℃ and keeps 21 minutes;
Then jute being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 12 hours;
The jute that to bank up after handling through synergy is that 11.0 the aqueous solution cleans with pH value, to carry out the enzyme deactivation processing, promptly obtain come unstuck after tossa, the clearance of pectin and lignin is as shown in table 1 in the tossa after resulting the coming unstuck.Therefrom as can be seen, the effect of using technical scheme among this embodiment is one of optimum.
Tossa after above-mentioned the coming unstuck is carried out bleaching, strikes the tossa product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 7
To unpack by the jute that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram;
Pectase and laccase were mixed with complex enzyme by weight 2: 3, press with jute and got the complex enzyme that configures, and be diluted with water to 13 times of jute weight, jute is flooded with the complex enzyme aqueous solution after the dilution by weight 1: 100;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.2, is warming up to 57 ℃, keeps 30 minutes;
PH value with the sodium bicarbonate regulator solution is 8.0 then, is warming up to 60 ℃ and keeps 22 minutes;
Then jute being taken out from solution banks up carries out the synergy processing of banking up, and synergy time of handling of banking up is 8 hours;
To carry out hot water with 90 ℃ hot water and clean through bank up jute after handling of synergy, to carry out the enzyme deactivation processing, promptly obtain come unstuck after tossa, the clearance of pectin and lignin is as shown in table 1 in the tossa after resulting the coming unstuck.
Tossa after above-mentioned the coming unstuck is carried out bleaching, strikes the tossa product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 8
To unpack by the jute that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram;
Pectase and laccase were mixed with complex enzyme by weight 3: 1, press with jute and got the complex enzyme that configures, and be diluted with water to 13 times of jute weight, jute is flooded with the complex enzyme aqueous solution after the dilution by weight 2: 100;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.0, is warming up to 58 ℃, keeps 25 minutes;
PH value with the sodium bicarbonate regulator solution is 7.8 then, keeps 23 minutes at 70 ℃;
Then jute is taken out from solution and carries out hot water with 75 ℃ hot water and clean, handle to carry out enzyme deactivation, promptly obtain come unstuck after tossa, the clearance of pectin and lignin is as shown in table 1 in the tossa after resulting the coming unstuck.
Tossa after above-mentioned the coming unstuck is carried out bleaching, strikes the tossa product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Embodiment 9
To unpack by the jute that market is buied, be divided into the wisp one by one that is about about 0.5 kilogram;
Pectase and laccase were mixed with complex enzyme by weight 2: 1, press with jute and got the complex enzyme that configures, and be diluted with water to 16 times of jute weight, jute is flooded with the complex enzyme aqueous solution after the dilution by weight 1: 100;
The pH value of regulating dilution back solution with acetic acid and sodium bicarbonate is 5.4, is warming up to 56 ℃, keeps 50 minutes;
PH value with the sodium bicarbonate regulator solution is 7.6 then, is warming up to 55 ℃ and keeps 24 minutes;
Then jute is taken out from solution and with the pH value be 3.5, temperature is that 80 ℃ hot water cleans, and handles to carry out enzyme deactivation, promptly obtain come unstuck after tossa, the clearance of pectin and lignin is as shown in table 1 in the tossa after resulting the coming unstuck.
Tossa after above-mentioned the coming unstuck is carried out bleaching, strikes the tossa product that can obtain having better spinning property after fiber crops are handled, clean, dewater, dry by prior art.
Pectase and laccase used in the foregoing description are respectively pectase (Bioprep) and the laccase of being produced by Denmark Novozymes Company (Denilite).
Table 1 has provided among each embodiment the clearance of pectin and lignin in the tossa after resulting the coming unstuck.
Table 1
Obviously, the foregoing description only is the example that provides for clearly illustrating, they are not to be limitation of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change must fall into protection scope of the present invention.
Claims (8)
1, a kind of applying composite enzyme method that jute is come unstuck, described complex enzyme comprises pectase and laccase, it is characterized in that, may further comprise the steps:
A. will jute be flooded by the complex enzyme aqueous solution that pectase and laccase are mixed with, the weight ratio of pectase is 30-90% in the described complex enzyme, the weight ratio of described complex enzyme and jute is 0.5: 100-5: 100, and the weight ratio of the described complex enzyme aqueous solution and jute is 16: 1;
B. adjusting described complex enzyme pH value of aqueous solution is 6.4, is warming up to 50 ℃, keeps 70 minutes;
C. the pH value of adjusting solution then is 9.0, keeps 80 minutes under 45 ℃ temperature;
D. the jute after handling through described complex enzyme being carried out enzyme deactivation handles.
2, method according to claim 1 is characterized in that, also is included in described steps d and carries out the step that synergy is banked up and handled before.
3, method according to claim 2 is characterized in that, described synergy time of handling of banking up is 6-24 hour.
According to each described method among the claim 1-3, it is characterized in that 4, the enzyme deactivation in the described steps d is treated to the high temperature washing or regulates the pH value and carry out enzyme deactivation processing, perhaps both combinations.
5, method according to claim 4 is characterized in that, the pH value when adjusting pH value is carried out the enzyme deactivation processing is more than 10.0 or less than 4.0.
6, according to each described method among the claim 1-3, it is characterized in that, also be included in described step a and before jute carried out pretreated step.
7, method according to claim 6 is characterized in that, described preliminary treatment is one or more the combination in water-bath, acid bath or the hydrogen peroxide dipping.
8, method according to claim 7 is characterized in that, the temperature of described water-bath is 30 ℃ to 65 ℃; Use sulfuric acid or acetic acid during described acid bath.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101225962A CN100560821C (en) | 2007-09-27 | 2007-09-27 | Method for Degumming Jute Using Compound Enzyme |
| EP08800650A EP2194170A4 (en) | 2007-09-27 | 2008-09-26 | Method of using composite enzyme for degumming jute (1) |
| PCT/CN2008/001658 WO2009049483A1 (en) | 2007-09-27 | 2008-09-26 | Method of using composite enzyme for degumming jute (1) |
| JP2010526131A JP2010540783A (en) | 2007-09-27 | 2008-09-26 | Degumming of jute using complex enzyme (1) |
| US12/680,460 US8357487B2 (en) | 2007-09-27 | 2008-09-26 | Method of degumming jute fibres with complex enzyme (1) |
| CA2701899A CA2701899A1 (en) | 2007-09-27 | 2008-09-26 | Method of using composite enzyme for degumming jute (1) |
| KR1020107006712A KR20100066522A (en) | 2007-09-27 | 2008-09-26 | Method of using composite enzyme for degumming jute(1) |
| MX2010003349A MX2010003349A (en) | 2007-09-27 | 2008-09-26 | Method of using composite enzyme for degumming jute (1). |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101225962A CN100560821C (en) | 2007-09-27 | 2007-09-27 | Method for Degumming Jute Using Compound Enzyme |
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| CN101130892A CN101130892A (en) | 2008-02-27 |
| CN100560821C true CN100560821C (en) | 2009-11-18 |
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| CNB2007101225962A Expired - Fee Related CN100560821C (en) | 2007-09-27 | 2007-09-27 | Method for Degumming Jute Using Compound Enzyme |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010540785A (en) * | 2007-09-27 | 2010-12-24 | チャンス レッドバッド テキスタイル テクノロジー カンパニー リミテッド | Degumming method of jute using complex enzyme (3) |
| US20100304469A1 (en) * | 2007-09-27 | 2010-12-02 | Guozhong Liu | The method of degumming jute fibres with complex enzyme (2) |
| US8357487B2 (en) * | 2007-09-27 | 2013-01-22 | Jiangsu Redbud Textile Technology | Method of degumming jute fibres with complex enzyme (1) |
| CN102517643A (en) * | 2011-11-28 | 2012-06-27 | 江苏紫荆花纺织科技股份有限公司 | Refined jute-kenaf fiber and preparation method thereof |
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Non-Patent Citations (4)
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| 环状芽孢杆菌果胶酶及木聚糖酶活性测定条件优化. 李立恒等.湖南农业大学学报(自然科学版)，第31卷第3期. 2005 * |
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Denomination of invention: Method for degumming jute by using complex enzyme Effective date of registration: 20141230 Granted publication date: 20091118 Pledgee: Industrial Commercial Bank of China Ltd. Changshu branch Pledgor: JIANGSU REDBUD TEXTILE TECHNOLOGY Co.,Ltd. Registration number: 2014320010004 |
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