CN102558395B - Biological deodorization method of natural rubber fresh latex biogel block - Google Patents
Biological deodorization method of natural rubber fresh latex biogel block Download PDFInfo
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- CN102558395B CN102558395B CN 201210003101 CN201210003101A CN102558395B CN 102558395 B CN102558395 B CN 102558395B CN 201210003101 CN201210003101 CN 201210003101 CN 201210003101 A CN201210003101 A CN 201210003101A CN 102558395 B CN102558395 B CN 102558395B
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Abstract
A biological deodorization method of a natural rubber fresh latex biogel block includes introducing slant culture of a test tube of a bacterial strain C1 into clear water containing sugar of 5Wt%, culturing the mixture in a shaker for 2 to 3 days under the temperature of 28-35 DEG C to generate deodorization liquid, and mixing the deodorization liquid into biological solidification liquid with the proportion as 1:10-1:1 to solidify fresh latex. A deodorant with lasting activity is added in the solidification stage of the fresh latex, production of bad smell is restrained from the source, so that the gel block cannot release the bad smell due to existence of the active deodorant, and releasing of the bad smell in the scale glue drying process is reduced.
Description
Technical field
The invention belongs to the solidifying process of natural rubber, be specifically related to a kind of biological solidification technology of natural rubber of deodorization.
Background technology
Natural rubber is the natural rubber latex that gathers from Para rubber tree, through manufacturing procedures such as supersolidification, dryings and the elasticity decorating film of making is important strategic materials and industrial raw material, has consequence in national product.Wherein the solidifying process of fresh latex is the important factor that affects the rubber quality.
In existing latex coagulation technique, biological coagulation solidifies with it that cost is low, setting time is short and the advantage such as prepared good product quality, has formed the trend that progressively replaces the classical acid solidifying process.Inst. of Agricultural Product Processing, Chinese Academy of Tropical Agricultur has used the biological coagulation new technology to carry out small-sized setting test in 8 farms in three large reclamation areas at home, brave handful farm, Yongxing Jiao Chang, Qionghai Tian Bao Jiao Chang have carried out respectively industrial experimentation and have set up the production Demonstration Base in Yunnan, have obtained considerable economic benefit.This technology is in patented mandate on April 29 in 2009: " a kind of method of coagulating natural rubber fresh latex with fungus culture medium " (ZL200510086303.0), is to add fungi in fresh latex
Trichoriella ornithopodaThe nutrient solution of Oorschot et de Hoog and make the method for latex coagulation is with fungi
Trichoriella ornithopodaThe test tube slant culture access of Oorschot et de Hoog contains in the whey of molasses 5%, cultivate and become biological coagulation liquid after 1～2 day, in biological coagulation liquid: fresh latex is that the ratio of 1:10 is poured latex into, stirs, and standing certain hour makes latex coagulation become piece.Also can be used as biological coagulation liquid after the liquid culture that gel piece squeezes out recycles.The method setting time is short, and good product quality has higher economic benefit.But in the maximization production application, if the biological coagulation gelled block is in time processing not, smelly as the solid spacer gel grumeleuse of acid cure in meeting in banking process, and because its nutritive ingredient (solidification liquid contains glucide) is abundanter and be more suitable for microorganism growth than the solid blob of viscose of acid cure, so the taste that discharges relatively can be denseer, caused certain puzzlement for workman's job morale and environmental protection.
Current rubber mill is also weaker comparatively speaking on the processing links of stink, domestic rubber mill seldom sees specially for the smelly processing operation of the accumulation blob of viscose of waste water and plant area, be all generally to rely on waste water disposal facility, reduce the accumulation of sizing material and increase to ventilate and alleviate gathering of foul smell.Also there is at present minority factory to attempt the applying biological deodorant liquid odor pollution is sprayed to solve in the blob of viscose surface.The method than chemistry spray effective, cost is low, and microorganism can growth and breeding, can satisfy the requirement of lasting deodorizing.If traditional biologic deodorization method is improved and is combined with the biological solidification technology of fresh latex, suppress the generation of foul smell from the source, make gelled block be unlikely to distribute foul smell because the existence of active reodorant is arranged in storage, the course of processing, and alleviate the release of foul smell in mark glue drying course.
Summary of the invention
The object of the present invention is to provide a kind of biological deodorization method of natural rubber fresh latex xanthan gel, the bacteria culture fluid that will have deodorization is sneaked in biological coagulation liquid with certain proportion, be equivalent to just add the reodorant with lasting activity in the solidification stages of fresh latex, suppress the generation of foul smell from the source, make gelled block be unlikely to distribute foul smell because the existence of active reodorant is arranged in storage, the course of processing.
For achieving the above object, the biological deodorization method of natural rubber fresh latex xanthan gel piece of the present invention is with fungi
Trichoriella ornithopodaThe test tube slant culture access of Oorschot et de Hoog contains in the whey of molasses 5wt%, and cultivating became biological coagulation liquid after 1～2 day; Cultivate in clear water with the sugary 5wt% of test tube slant culture access of bacterial strain C1,28～35 ℃ of lower shaking tables are cultivated and were become biological deodorizing liquid in 2～3 days; Above-mentioned biological deodorizing liquid is sneaked in biological coagulation liquid with the part by weight of 1:10～1:1, again above-mentioned mixed solution is poured in latex by the part by weight of above-mentioned mixed solution: latex=1:20～1:8, stir, mix, standing 0.2～5h makes latex coagulation become piece.
Above-mentioned bacterial strains C1 is a kind of yeast saccharomyces cerevisiae, Classification And Nomenclature is Saccharomyces cerevisiae C1, the test tube slant culture of bacterial strain C1 has been kept at Chinese Typical Representative culture collection center (China Center for Type Culture Collection on September 2nd, 2011, be called for short CCTCC), this centre address is Luojiashan, Wuchang, Wuhan City, Hubei Province Wuhan University, and preserving number is: CCTCC NO:M 2011302.
The selected biological coagulation fresh latex of the present invention belongs to prior art, but referenced patent: " a kind of method of coagulating natural rubber fresh latex with fungus culture medium " (ZL200510086303.0).Fungi
Trichoriella ornithopodaOorschot et de Hoog can obtain in Chinese common micro-organisms culture presevation administrative center (China General Microbiological Culture Collection Center is called for short CGMCC), and preserving number is: CGMCC M 1435.With the fungi that obtains
Trichoriella ornithopodaThe test tube slant culture access of Oorschot et de Hoog contains in the whey that does not contain ammonia of molasses 5wt%, and standing cultivation becomes biological coagulation liquid after 1～2 day under 28～35 ℃.Preferred proportion by biological coagulation liquid and latex is 1:10(weight) this biological coagulation liquid is poured into do not contained in the ammonia fresh latex, standing 0.5～4h after stirring can obtain natural rubber fresh latex xanthan gel piece.
The biological deodorization method of natural rubber fresh latex xanthan gel piece of the present invention, the biological deodorizing liquid of preferentially selecting and the part by weight of biological coagulation liquid are 1:1～1:3.
The biological deodorization method of natural rubber fresh latex xanthan gel piece of the present invention, preferentially selecting the mixed solution of biological deodorizing liquid and biological coagulation liquid and the part by weight of latex is 1:9～1:11.
The pH value of above-mentioned biological deodorizing liquid and biological coagulation liquid preferably all is controlled at 3.8～5.5, near the iso-electric point of latex, can comparatively fast solidify fresh latex fully, and have deodorizing effect preferably.
The present invention has the following advantages:
(1) the present invention has changed the application mode of biological deodorizing liquid in Rubber processing.The use-pattern of biological deodorizing liquid by traditional in the deodorizing of rubber gels piece surface sprinkling formula, change into just to sneak in the latex coagulation stage and be dispersed in gel piece inside after peptizer solidifies together with fresh latex, deodorizing presses down smelly more thorough, and the degree that the gel piece of accumulation discharges foul smell obviously alleviates.
(2) biological deodorizing the utilize category that all belong to living microorganism the same as biological coagulation, preferred strain C1 of the present invention and biological coagulation are used bacterium
Trichoriella ornithopodaOorschot et de Hoog all belongs to fungi, and the pH of suitable growth is also close, all between 3.8～5.5, near the iso-electric point of fresh latex, can comparatively fast solidify fresh latex fully, and have deodorizing effect preferably.
(3) setting time and deodorizing effect are controlled, and setting time is along with the ratio of solidification liquid increases and reduces, and deodorizing effect can be controlled both ratios as required flexibly along with the ratio of deodorant liquid increases and strengthens.
The present invention will have the bacteria culture fluid of deodorization and sneak in biological coagulation liquid with certain proportion, be equivalent to just add the reodorant with lasting activity in the solidification stages of fresh latex, suppress the generation of foul smell from the source, make gelled block be unlikely to distribute foul smell because the existence of active reodorant is arranged in storing, processing, and the release that alleviates foul smell in mark glue drying course, the waste water of simultaneously compressing tablet granulation because also contain can growth and breeding the deodorizing bacterium, the foul smell that waste water distributes also can be alleviated to some extent, is conducive to solve the environmental issue of rubber mill.
Embodiment
Embodiment 1:
With fungi
Trichoriella ornithopodaThe test tube slant culture access of Oorschot et de Hoog contains in the whey of molasses 5wt%, and cultivating after 2 days for 30 ℃ becomes biological coagulation liquid, standby.
Get in the clear water of the sugary 5wt% of test tube slant culture access of a bacterial strain C1 and cultivate, under 30 ℃, 150r/min, shaking table is cultivated and become biological deodorizing liquid in 2 days, and is standby.
Take the 10kg natural rubber fresh latex, take the biological deodorizing liquid of 0.75kg biological coagulation liquid and 0.25kg, the above-mentioned biological coagulation liquid that weighs up and biological deodorizing liquid are poured in fresh latex simultaneously stirred, standing 1.5h solidifies.
Xanthan gel piece after solidifying is processing immediately not, accumulation deposit 7 days, with only solidify the made xanthan gel piece control group of 10kg natural rubber fresh latex with 1kg biological coagulation liquid and compare, please from five expertise gel pieces smell variation during storage of Rubber processing industry.
Result is: gel piece deposit 3 days not smelly, little smelly after 4～7 days; Control group is deposited after 1 day little smelly, stench after 7 days.
Embodiment 2:
With fungi
Trichoriella ornithopodaThe test tube slant culture access of Oorschot et de Hoog contains in the whey of molasses 5wt%, and cultivating after 2 days for 30 ℃ becomes biological coagulation liquid, standby.
Get in the clear water of the sugary 5wt% of test tube slant culture access of a bacterial strain C1 and cultivate, under 32 ℃, 200r/min, shaking table is cultivated and become biological deodorizing liquid in 2 days, and is standby.
Take the 9kg natural rubber fresh latex, take the biological deodorizing liquid of 0.5kg biological coagulation liquid and 0.5kg, the more above-mentioned biological coagulation liquid that weighs up and biological deodorizing liquid are poured in fresh latex simultaneously stirred, standing 4h solidifies.
Xanthan gel piece after solidifying is processing immediately not, accumulation deposit 7 days, with only solidify the made xanthan gel piece control group of 9kg natural rubber fresh latex with 1kg biological coagulation liquid and compare, please from five expertise gel pieces smell variation during storage of Rubber processing industry.
Result is: gel piece is deposited after 7 days little smelly; Control group is deposited after 1 day little smelly, stench after 7 days.
Embodiment 3:
With fungi
Trichoriella ornithopodaThe test tube slant culture access of Oorschot et de Hoog contains in the whey of molasses 5wt%, and cultivating after 2 days for 30 ℃ becomes biological coagulation liquid, standby.
Get in the clear water of the sugary 5wt% of test tube slant culture access of a bacterial strain C1 and cultivate, under 28 ℃, 150r/min, shaking table is cultivated and become biological deodorizing liquid in 2 days, and is standby.
Take the 11kg natural rubber fresh latex, take the biological deodorizing liquid of 0.6kg biological coagulation liquid and 0.4kg, then the biological coagulation liquid that weighs up and biological coagulation liquid are poured in fresh latex simultaneously stirred, standing 3h solidifies.
Xanthan gel piece after solidifying is processing immediately not, accumulation deposit 7 days, with only solidify the made xanthan gel piece control group of 11kg natural rubber fresh latex with 1kg biological coagulation liquid and compare, please from five expertise gel pieces smell variation during storage of Rubber processing industry.
Result is: gel piece deposit 4 days not smelly, little smelly after 5～7 days; Control group is deposited after 1 day little smelly, stench after 7 days.
Claims (5)
1. the biological deodorization method of a natural rubber fresh latex xanthan gel piece is characterized in that comprising the following steps:
With fungi
Trichoriella ornithopodaThe test tube slant culture access of Oorschot et de Hoog contains in the whey of molasses 5wt%, and standing cultivation becomes biological coagulation liquid after 1～2 day under 28～35 ℃; The test tube slant culture access of bacterial strain C1 is contained in the clear water of molasses 5wt%, and 28～35 ℃ of shaking tables are cultivated and were become biological deodorizing liquid in 2～3 days;
Above-mentioned biological deodorizing liquid is sneaked in biological coagulation liquid with the part by weight of 1:10～1:1 be made into mixed solution, again above-mentioned mixed solution is poured in latex as the part by weight of 1:20～1:8 than latex take above-mentioned mixed solution, stir, mix, standing 0.2～5h makes latex coagulation become piece;
Wherein, above-mentioned bacterial strains C1 is a kind of yeast saccharomyces cerevisiae, Classification And Nomenclature is Saccharomyces cerevisiae C1, the test tube slant culture of C1 bacterial strain has been kept at Chinese Typical Representative culture collection center (China Center for Type Culture Collection on September 2nd, 2011, be called for short CCTCC), this centre address is Luojiashan, Wuchang, Wuhan City, Hubei Province Wuhan University, and preserving number is: CCTCC NO:M 2011302; Fungi
Trichoriella ornithopodaThe test tube slant culture of Oorschot et de Hoog on August 10th, 2005 was kept at Chinese common micro-organisms culture presevation administrative center (China General Microbiological Culture Collection Center, be called for short CGMCC), preserving number is: CGMCC M 1435.
2. the biological deodorization method of natural rubber fresh latex xanthan gel piece as claimed in claim 1, it is characterized in that: the biological deodorizing liquid of selecting and the part by weight of biological coagulation liquid are 1:1～1:3.
3. the biological deodorization method of natural rubber fresh latex xanthan gel piece as claimed in claim 1 or 2, it is characterized in that: the part by weight of the biological deodorizing liquid of selecting and the mixed solution of biological coagulation liquid and latex is 1:9～1:11.
4. the biological deodorization method of natural rubber fresh latex xanthan gel piece as claimed in claim 1 or 2, it is characterized in that: the pH value of described biological deodorizing liquid and biological coagulation liquid is 3.8～5.5.
5. the biological deodorization method of natural rubber fresh latex xanthan gel piece as claimed in claim 3, it is characterized in that: the pH value of described biological deodorizing liquid and biological coagulation liquid is 3.8～5.5.
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| CN 201210003101 CN102558395B (en) | 2012-01-06 | 2012-01-06 | Biological deodorization method of natural rubber fresh latex biogel block |
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| CN102558395B true CN102558395B (en) | 2013-11-06 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105664211A (en) * | 2016-02-02 | 2016-06-15 | 耿春茂 | Biological deodorization plate |
| CN105936653A (en) * | 2016-06-06 | 2016-09-14 | 云南珩森生物科技有限公司 | Natural rubber microbial deodorization processing technology |
| CN106046205A (en) * | 2016-06-06 | 2016-10-26 | 云南珩森生物科技有限公司 | Biological deodorization processing method for naturally coagulating natural rubber |
| CN105968234A (en) * | 2016-06-06 | 2016-09-28 | 云南珩森生物科技有限公司 | Method for preparing high-performance natural rubber through biological coagulation technology |
| CN113501893B (en) * | 2021-06-21 | 2022-08-23 | 中国热带农业科学院橡胶研究所 | Environment-friendly natural rubber processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919878A (en) * | 2005-08-26 | 2007-02-28 | 中国热带农业科学院农产品加工研究所 | Method of coagulating natural rubber fresh latex with fungus culture medium |
| CN101130576A (en) * | 2007-08-30 | 2008-02-27 | 中国热带农业科学院热带生物技术研究所 | Method for solidifying latex of panama rubber tree by using monoplast green alga |
| CN102093492A (en) * | 2009-12-10 | 2011-06-15 | 蒋盛军 | Method for solidifying natural rubber latex by using microbe culture solution |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919878A (en) * | 2005-08-26 | 2007-02-28 | 中国热带农业科学院农产品加工研究所 | Method of coagulating natural rubber fresh latex with fungus culture medium |
| CN101130576A (en) * | 2007-08-30 | 2008-02-27 | 中国热带农业科学院热带生物技术研究所 | Method for solidifying latex of panama rubber tree by using monoplast green alga |
| CN102093492A (en) * | 2009-12-10 | 2011-06-15 | 蒋盛军 | Method for solidifying natural rubber latex by using microbe culture solution |
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