WO2002092887A1 - A method of removing pectin in bast fiber - Google Patents
A method of removing pectin in bast fiber Download PDFInfo
- Publication number
- WO2002092887A1 WO2002092887A1 PCT/KR2002/000904 KR0200904W WO02092887A1 WO 2002092887 A1 WO2002092887 A1 WO 2002092887A1 KR 0200904 W KR0200904 W KR 0200904W WO 02092887 A1 WO02092887 A1 WO 02092887A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- degumming
- bacteria
- tenacious
- plant
- bast fiber
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
- D01C1/04—Bacteriological retting
Definitions
- the present invention relates to a method for degumming pectin from bast fiber, and more particularly to a method for degumming pectin from bast fiber of tenacious plant, which comprises degumming the bast fiber by a mixed degumming mother liquid comprising an aerobic bacterial culture and an anaerobic bacterial culture to obtain a degummed bast fiber without any loss of cellulose.
- a mixed degumming mother liquid comprising an aerobic bacterial culture and an anaerobic bacterial culture to obtain a degummed bast fiber without any loss of cellulose.
- anaerobic bacteria and aerobic bacteria have abilities to effectively extract and degrade pectin and other impurities, which are adherent to cortexes in the bast fiber of a tenacious plant.
- bast fibers of tenacious plants such as hemp, ramie, flax, arrowroot vine, mulberry tree and platanus, which are widely cultivated in Korea, into soft fibers
- Korean patent publication No. 1986-0001524 discloses a method for degumming bast fiber using aerobic bacteria.
- the method has an advantage that pectin can be sufficiently degraded without damaging the inherent properties of bast fiber or generating environmental contamination.
- the method employs aerobic bacteria to degrade pectin in bast fiber, a small amount of impurities other than pectin still remains on the fiber.
- the method is ineffective for degumming of ramie, flax and mulberry tree.
- Korean patent publication No. 1991-0004553 discloses a method for degumming bast fiber using anaerobic bacteria and aerobic bacteria.
- the method comprises the steps of extracting pectin from bast fiber by the use of anaerobic bacteria, and degrading the extracted pectin by the use of aerobic bacteria without any loss of cellulose in bast fiber.
- plant barks to be treated are retted for a certain time period in separate baths respectively containing an anaerobic bacterial culture and an aerobic bacterial culture in order. Accordingly, the method has problems that the process is very complicated and requires a considerable amount of time.
- the present inventors have earnestly researched in order to solve these problems, and as a result, have found novel methods for degumming which are capable of effectively removing pectin in bast fiber using a mixed degumming mother liquid of an aerobic bacterial culture and an anaerobic bacterial culture in which both the bacteria can coexist therein. And, they have found that the methods have a simple process and a short treatment time.
- a first aspect of the present invention provides a method for degumming bast fiber of a tenacious plant, comprising the steps of: obtaining an aerobic bacterial culture by isolating aerobic bacteria from bast fiber of a tenacious plant and culruring the isolated aerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; obtaining an anaerobic bacterial culture by isolating anaerobic bacteria from bast fiber of a tenacious plant and culturing the isolated anaerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; manufacturing a degumming mother liquid by maintaining a mixture of the obtained bacterial cultures at a temperature of 38°C ⁇ 40 ° C and a pH of 6.0 to 7.0 so as to allow both the bacteria to live together therein; and degumming barks of a tenacious plant by adding water into a degumming bath, retting the barks to be treated in the bath, and adding the degumming mother liquid thereto.
- Another aspect of the present invention provides a method for degumming bast fiber of a tenacious plant, comprising the steps of: obtaining an aerobic bacterial culture by isolating aerobic bacteria from bast fiber of a tenacious plant and culturing the isolated aerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; obtaining an anaerobic bacterial culture by isolating anaerobic bacteria from bast fiber of a tenacious plant and culturing the isolated anaerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; manufacturing a degumming mother liquid by maintaining a mixture of the bacterial cultures at a temperature of 38 ° C ⁇ 40 ° Cand a pH of 6.0-7.0 so as to allow both the bacteria to live together therein; degumming barks of a tenacious plant by adding water into a degumming bath, retting the barks to be treated in the bath while maintaining at a temperature of 38°C ⁇ 40°C, and adding the degumming mother liquid thereto (a 1s
- anaerobic bacteria and aerobic bacteria can extract and degrade pectin and other impurities, which are adherent to cortexes and their adjacent fibroid materials in bast fiber of a tenacious plant, and thus break down the binding between cortexes and fibroid materials.
- aerobic bacteria and anaerobic bacteria are isolated from bast fiber of a tenacious plant.
- the respective bacterial cultures are obtained by culturing under appropriate conditions so as to allow the bacteria to propagate.
- a degumming mother liquid is manufactured by maintaining a mixture of the obtained both bacterial cultures at a temperature of 38 ° C -40 ° C and a pH of 6.0-7.0 so as to allow both the bacteria to live together therein.
- pectin and other impurities adherent to cortexes and their adjacent fibroid materials in bast fiber of a tenacious plant can be completely extracted and degraded, and thus degummed bast fiber can be easily obtained.
- the present invention can provide degummed bast fiber of a tenacious plant, with higher quality and in a simpler manner, compared to conventional degumming methods.
- the methods of the present invention are more suitable for mass production of the degummed bast fiber due to their simpler process, compared to conventional degumming methods.
- the obtained aerobic bacterial culture and the anaerobic bacterial culture may be added one by one, or a mixture of both bacterial cultures may be added to the degumming bath.
- the temperature of the bath is preferably maintained at a temperature ranging between 38°C ⁇ 40 ° Cand adjusted to a pH of 6.0-7.0 so as to allow both the bacteria to live together therein.
- the degumming time in the bath is preferably in the range of 45-55 hours, more preferably in the range of 48-50 hours.
- the barks degummed in the bath can be further degummed in another bath at a temperature of 60 °C to 70 °C for 46-50 hours to remove impurities other than pectin.
- the baths can be purged with oxygen intermittently, e.g., once every 2 hours, during the degumming process to promote bacterial activities.
- oxygen intermittently, e.g., once every 2 hours, during the degumming process to promote bacterial activities.
- the amount of oxygen provided and the providing time interval are not particularly limited, so long as the bacteria can be effectively activated.
- the finally degummed barks are washed with a suitable washing agent or foaming agent commonly used.
- the washed barks are emulsified with an emulsifier to maintain their optimal state.
- the emulsifier to be used in the present invention include yeast extract or palm oil.
- the emulsified barks are aged at a temperature of 60 ° C ⁇ 70 ° C for 46-50 hours.
- Fig. 1 is a flow chart showing a method for degumming bast fiber according to the present invention.
- Fig. 2 is a flow chart showing another method for degumming bast fiber according to the present invention.
- Step of obtaining an aerobic bacterial culture and an anaerobic bacterial culture Aerobic bacteria and anaerobic bacteria are isolated from bast fiber of a tenacious plant. The isolated bacteria are purely cultured to obtain an aerobic bacterial culture and an anaerobic bacterial culture, separately.
- anaerobic bacteria and aerobic bacteria are effective in extracting and degrading pectin and other impurities, which are adherent to cortexes and their adjacent fibroid materials in bast fiber of a tenacious plant.
- Kurthia cannabis as the anaerobic bacterium and Bacillus cannabis as the aerobic bacterium are isolated from the bark of tenacious plant. Then, the isolated respective bacteria are cultured under different conditions so as to allow the bacteria to propagate. For example, Kurthia cannabis is cultured at a temperature of 25-28 ° C and a pH of 5.0-6.0, and Bacillus cannabis is cultured at a temperature of
- a degumming mother liquid is manufactured by mixing the aerobic bacterial culture and the anaerobic bacterial culture obtained in 1st step. At this time, the temperature is maintained at 38 ° C ⁇ 40 ° C and pH is adjusted to 6.0-7.0 so as to allow both the bacteria to live together therein. If necessary, an appropriate amount of sodium, peptone, pupa, etc., can be further added to the degumming mother liquid.
- Barks to be treated are retted in a water-added degumming bath.
- the degumming bath is maintained at a temperature of 38 ° C ⁇ 40 ° C and a pH of 6.0-7.0 for 45-55 hours, preferably 48-50 hours.
- pectin is extracted by anaerobic bacteria, and degraded by aerobic bacteria to remove pectin from the barks.
- the barks degummed in the 3rd step are retted in a water-added degumming bath.
- the degumming bath is maintained at a temperature of 60 ° C -70 ° C for 45-55 hours, preferably 48-50 hours.
- pectin not removed in the 3rd step and impurities other than pectin on the barks are completely removed.
- the baths can be purged with oxygen intermittently to promote bacterial activities.
- the barks degummed in the 4th step are collected from the degumming bath, and washed with a suitable washing agent or a foaming agent to completely separate pectin and other impurities from the barks. Further, chlorophyll, nitrogen compounds and other organic compounds remaining on the barks are separated.
- emulsifier used in the invention examples include yeast extract and palm oil.
- yeast extract and palm oil examples include yeast extract and palm oil.
- Example 1 Preparation of degummed bast fiber of hemp (1) 250kg of hemp bark was retted in a degumming bath containing 5-6 tons of water. 10 liters of Kurthia cannabis culture solution and 20 liters of Bacillus cannabis culture solution were added to the degumming bath sequentially. At this time, the degumming bath was maintained at a temperature of 38 ° C -40 ° C and a pH of 6.0-7.0 for 48-50 hours. Subsequently, the bath was purged with air for 10 minutes once every 2 hours. At this time, pectin and other impurities on the bark were completely removed.
- the barks thus degummed were retted in another degumming bath containing 5-6 tons of water. After a mixture of 10 liters of Kurthia cannabis culture solution and 20 liters of culture solution was added to the degumming bath, the degumming bath was maintained at an elevated temperature of 60 ° C -70 ° C for
- the bath was purged with air for 10 minutes once every 2 hours. At this time, pectin and other impurities on the barks were completely removed.
- Example 3 Preparation of degummed bast fiber of mulberry tree A good quality degummed bast fiber of mulberry tree was prepared in the same manner as in Example 1, except that a bark of mulberry tree and a bark of moraceae tree were used instead of that of hemp.
- Example 4 Preparation of degummed bast fiber of arrowroot vine A good quality degummed bast fiber of arrowroot vine was prepared in the same manner as in Example 1, except that a bark of arrowroot vine was used instead of that of hemp.
- the degummed bast fiber of a tenacious plant with improved quality can be prepared in a simpler manner, compared to conventional degumming methods. Accordingly, the methods of the present invention are more suitable for mass production of the degummed bast fiber.
Abstract
Methods for degumming bast fiber a tenacious plant are provided. According to the methods, the bast fiber is effectively degummed by a mixture of an aerobic bacterial culture and an anerobic bacterial culture at a temperature of 38 °C∩40 °c and a pH OF 6.0∩7.0.
Description
A METHOD OF REMOVING PECTIN IN BAST FIBER
Technical Field
The present invention relates to a method for degumming pectin from bast fiber, and more particularly to a method for degumming pectin from bast fiber of tenacious plant, which comprises degumming the bast fiber by a mixed degumming mother liquid comprising an aerobic bacterial culture and an anaerobic bacterial culture to obtain a degummed bast fiber without any loss of cellulose. At this time, anaerobic bacteria and aerobic bacteria have abilities to effectively extract and degrade pectin and other impurities, which are adherent to cortexes in the bast fiber of a tenacious plant.
Background Art
In general, traditional methods for processing bast fibers of tenacious plants such as hemp, ramie, flax, arrowroot vine, mulberry tree and platanus, which are widely cultivated in Korea, into soft fibers include heating or aging bast fibers with steam, followed by treating with a strong alkaline chemical such as caustic soda.
However, since such traditional methods use toxic chemicals to obtain a degummed bast fiber, the inherent properties of bast fiber are largely deteriorated.
In addition, pectin and other impurities in bast fiber cannot be sufficiently removed and thus degummed bast fiber of high quality cannot be obtained. Furthermore, environmental contamination is caused by the generated toxic wastewater.
Korean patent publication No. 1986-0001524 discloses a method for degumming bast fiber using aerobic bacteria. The method has an advantage that pectin can be sufficiently degraded without damaging the inherent properties of bast fiber or generating environmental contamination. However, because the method employs aerobic bacteria to degrade pectin in bast fiber, a small amount of impurities other than pectin still remains on the fiber. In particular, the method is ineffective for degumming of ramie, flax and mulberry tree.
Further, Korean patent publication No. 1991-0004553 discloses a method for degumming bast fiber using anaerobic bacteria and aerobic bacteria. The method comprises the steps of extracting pectin from bast fiber by the use of anaerobic bacteria, and degrading the extracted pectin by the use of aerobic bacteria
without any loss of cellulose in bast fiber. In accordance with the method, plant barks to be treated are retted for a certain time period in separate baths respectively containing an anaerobic bacterial culture and an aerobic bacterial culture in order. Accordingly, the method has problems that the process is very complicated and requires a considerable amount of time.
The present inventors have earnestly researched in order to solve these problems, and as a result, have found novel methods for degumming which are capable of effectively removing pectin in bast fiber using a mixed degumming mother liquid of an aerobic bacterial culture and an anaerobic bacterial culture in which both the bacteria can coexist therein. And, they have found that the methods have a simple process and a short treatment time.
Therefore, it is an object of the present invention to provide methods for degumming bast fiber of a tenacious plant in a simple manner.
Disclosure of the Invention
A first aspect of the present invention provides a method for degumming bast fiber of a tenacious plant, comprising the steps of: obtaining an aerobic bacterial culture by isolating aerobic bacteria from bast fiber of a tenacious plant and culruring the isolated aerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; obtaining an anaerobic bacterial culture by isolating anaerobic bacteria from bast fiber of a tenacious plant and culturing the isolated anaerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; manufacturing a degumming mother liquid by maintaining a mixture of the obtained bacterial cultures at a temperature of 38°C~40°C and a pH of 6.0 to 7.0 so as to allow both the bacteria to live together therein; and degumming barks of a tenacious plant by adding water into a degumming bath, retting the barks to be treated in the bath, and adding the degumming mother liquid thereto.
Another aspect of the present invention provides a method for degumming bast fiber of a tenacious plant, comprising the steps of: obtaining an aerobic bacterial culture by isolating aerobic bacteria from bast fiber of a tenacious plant and culturing the isolated aerobic bacteria under appropriate conditions so as to allow the bacteria to propagate;
obtaining an anaerobic bacterial culture by isolating anaerobic bacteria from bast fiber of a tenacious plant and culturing the isolated anaerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; manufacturing a degumming mother liquid by maintaining a mixture of the bacterial cultures at a temperature of 38°C~40°Cand a pH of 6.0-7.0 so as to allow both the bacteria to live together therein; degumming barks of a tenacious plant by adding water into a degumming bath, retting the barks to be treated in the bath while maintaining at a temperature of 38°C~40°C, and adding the degumming mother liquid thereto (a 1st degumming step); further degumming the barks degummed in the above step in the bath while maintaining at an elevated temperature of 60°C~70°C for 45-55 hours (a 2nd degumming step); washing the degummed barks with a suitable washing agent or foaming agent; and aging the washed barks by emulsifying it with an emulsifier and placing the emulsion at a temperature of 60 °C -70 °C for 46-50 hours.
The methods for degumming bast fiber of a tenacious plant according to the present invention will be explained in detail below. In accordance with the methods of the present invention, anaerobic bacteria and aerobic bacteria can extract and degrade pectin and other impurities, which are adherent to cortexes and their adjacent fibroid materials in bast fiber of a tenacious plant, and thus break down the binding between cortexes and fibroid materials.
In order to exploit such traits of both bacteria in the invention, first, aerobic bacteria and anaerobic bacteria are isolated from bast fiber of a tenacious plant.
Then, the respective bacterial cultures are obtained by culturing under appropriate conditions so as to allow the bacteria to propagate. Subsequently, a degumming mother liquid is manufactured by maintaining a mixture of the obtained both bacterial cultures at a temperature of 38 °C -40 °C and a pH of 6.0-7.0 so as to allow both the bacteria to live together therein.
In accordance with the methods of the present invention, pectin and other impurities adherent to cortexes and their adjacent fibroid materials in bast fiber of a tenacious plant can be completely extracted and degraded, and thus degummed bast fiber can be easily obtained. Accordingly, the present invention can provide degummed bast fiber of a tenacious plant, with higher quality and in a simpler manner, compared to conventional degumming methods. Further, the methods of
the present invention are more suitable for mass production of the degummed bast fiber due to their simpler process, compared to conventional degumming methods.
In the present invention, the obtained aerobic bacterial culture and the anaerobic bacterial culture may be added one by one, or a mixture of both bacterial cultures may be added to the degumming bath. In any case, the temperature of the bath is preferably maintained at a temperature ranging between 38°C~40°Cand adjusted to a pH of 6.0-7.0 so as to allow both the bacteria to live together therein.
The degumming time in the bath is preferably in the range of 45-55 hours, more preferably in the range of 48-50 hours. The barks degummed in the bath can be further degummed in another bath at a temperature of 60 °C to 70 °C for 46-50 hours to remove impurities other than pectin.
The baths can be purged with oxygen intermittently, e.g., once every 2 hours, during the degumming process to promote bacterial activities. However, the amount of oxygen provided and the providing time interval are not particularly limited, so long as the bacteria can be effectively activated.
The finally degummed barks are washed with a suitable washing agent or foaming agent commonly used.
The washed barks are emulsified with an emulsifier to maintain their optimal state. Examples of the emulsifier to be used in the present invention include yeast extract or palm oil. The emulsified barks are aged at a temperature of 60 °C ~70 °C for 46-50 hours.
Brief Description of the Drawings
The above object and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a flow chart showing a method for degumming bast fiber according to the present invention; and
Fig. 2 is a flow chart showing another method for degumming bast fiber according to the present invention.
Best Mode for Carrying Out the Invention
Hereinafter, the methods according to the present invention will be explained in more detail with reference to the accompanying drawings.
- 1st step: Step of obtaining an aerobic bacterial culture and an anaerobic bacterial culture Aerobic bacteria and anaerobic bacteria are isolated from bast fiber of a tenacious plant. The isolated bacteria are purely cultured to obtain an aerobic bacterial culture and an anaerobic bacterial culture, separately.
As described above, anaerobic bacteria and aerobic bacteria are effective in extracting and degrading pectin and other impurities, which are adherent to cortexes and their adjacent fibroid materials in bast fiber of a tenacious plant. Specifically,
Kurthia cannabis as the anaerobic bacterium and Bacillus cannabis as the aerobic bacterium are isolated from the bark of tenacious plant. Then, the isolated respective bacteria are cultured under different conditions so as to allow the bacteria to propagate. For example, Kurthia cannabis is cultured at a temperature of 25-28 °C and a pH of 5.0-6.0, and Bacillus cannabis is cultured at a temperature of
35-40 °C and a pH of 7.0-8.0.
- 2nd step: Step of manufacturing a degumming mother liquid
A degumming mother liquid is manufactured by mixing the aerobic bacterial culture and the anaerobic bacterial culture obtained in 1st step. At this time, the temperature is maintained at 38°C~40°C and pH is adjusted to 6.0-7.0 so as to allow both the bacteria to live together therein. If necessary, an appropriate amount of sodium, peptone, pupa, etc., can be further added to the degumming mother liquid.
- 3rd step: First degumming step
Barks to be treated are retted in a water-added degumming bath. After the degumming mother liquid obtained in 2nd step is added to the degumming bath, the degumming bath is maintained at a temperature of 38 °C ~40 °C and a pH of 6.0-7.0 for 45-55 hours, preferably 48-50 hours.
At this step, pectin is extracted by anaerobic bacteria, and degraded by aerobic bacteria to remove pectin from the barks.
After the degummed barks are collected, the remaining mother liquid is reusable for the next degumming process.
- 4th step: Second degumming step - optional
First, the barks degummed in the 3rd step are retted in a water-added degumming bath. After the degumming mother liquid manufactured in the 2nd step is added to the degumming bath, the degumming bath is maintained at a temperature of 60 °C -70 °C for 45-55 hours, preferably 48-50 hours.
At this step, pectin not removed in the 3rd step and impurities other than pectin on the barks are completely removed.
In the first and second degumming steps, the baths can be purged with oxygen intermittently to promote bacterial activities.
- 5th step: Washing and drying step
The barks degummed in the 4th step are collected from the degumming bath, and washed with a suitable washing agent or a foaming agent to completely separate pectin and other impurities from the barks. Further, chlorophyll, nitrogen compounds and other organic compounds remaining on the barks are separated.
Then, the washed barks are subjected to drying.
- 6th step: Aging step The barks dried in the 5th step are emulsified with an emulsifier to maintain their optimal condition, and then aged at a temperature of 60°C~70°C for 46-50 hours to prepare a final degummed bast fiber.
Examples of the emulsifier used in the invention include yeast extract and palm oil. The present invention will now be described in more detail with reference to the following Examples. However, these examples are given by way of illustration and not of limitation.
Example 1: Preparation of degummed bast fiber of hemp (1) 250kg of hemp bark was retted in a degumming bath containing 5-6 tons of water. 10 liters of Kurthia cannabis culture solution and 20 liters of Bacillus cannabis culture solution were added to the degumming bath sequentially. At this time, the degumming bath was maintained at a temperature of 38 °C -40 °C and a pH of 6.0-7.0 for 48-50 hours.
Subsequently, the bath was purged with air for 10 minutes once every 2 hours. At this time, pectin and other impurities on the bark were completely removed.
Finally, the degummed barks were washed and dried to obtain a high quality degummed bast fiber of hemp.
Example 2: Preparation of degummed bast fiber of hemp (2)
250kg of hemp bark was retted in a degumming bath containing 5-6 tons of water. A mixture of 10 liters of Kurthia cannabis culture solution and 20 liters of culture solution was added to the degumming bath. At this time, , the degumming bath was maintained at a temperature of 38°C~40°C and a pH of 6.0-7.0 for 48-50 hours. The bath was purged with air for 10 minutes once every 2 hours.
The barks thus degummed were retted in another degumming bath containing 5-6 tons of water. After a mixture of 10 liters of Kurthia cannabis culture solution and 20 liters of culture solution was added to the degumming bath, the degumming bath was maintained at an elevated temperature of 60 °C -70 °C for
45-55 hours.
Subsequently, the bath was purged with air for 10 minutes once every 2 hours. At this time, pectin and other impurities on the barks were completely removed.
Finally, the degummed barks were washed and dried to obtain a high quality degummed bast fiber of hemp.
Example 3: Preparation of degummed bast fiber of mulberry tree A good quality degummed bast fiber of mulberry tree was prepared in the same manner as in Example 1, except that a bark of mulberry tree and a bark of moraceae tree were used instead of that of hemp.
Example 4: Preparation of degummed bast fiber of arrowroot vine A good quality degummed bast fiber of arrowroot vine was prepared in the same manner as in Example 1, except that a bark of arrowroot vine was used instead of that of hemp.
Industrial Applicability
As can be seen from the foregoing, according to the methods of the present invention, the degummed bast fiber of a tenacious plant with improved quality can be prepared in a simpler manner, compared to conventional degumming methods. Accordingly, the methods of the present invention are more suitable for mass production of the degummed bast fiber.
Various other modifications will be apparent to and can be readily made by those skilled in the art without departing from the scope and spirit of the invention. Accordingly, it is not intended that the scope of claims appended hereto be limited to the description as set forth herein, but rather that the claims be broadly construed.
Claims
1. A method for degumming bast fiber of a tenacious plant, comprising the steps of: obtaining an aerobic bacterial culture by isolating aerobic bacteria from bast fiber of a tenacious plant and culturing the isolated aerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; obtaining an anaerobic bacterial culture by isolating anaerobic bacteria from bast fiber of a tenacious plant and culturing the isolated anaerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; manufacturing a degumming mother liquid by maintaining a mixure of the obtained bacterial cultures at a temperature of 38 °C~40 °C and a pH of 6.0 to 7.0 so as to allow both the bacteria to live together therein; and degumming barks of a tenacious plant by adding water into a degumming bath, retting the barks to be treated in the bath while maintaining at a temperature of 38 °C~40°C and pH of 6.0-7.0, adding the degumming mother liquid thereto, and placing the mixture for 45-55 hours.
2. The method as set forth in claim 1, wherein the placing time of the mixture is in the range of 48-50 hours.
3. A method for degumming bast fiber of a tenacious plant, comprising the steps of: obtaining an aerobic bacterial culture by isolating aerobic bacteria from bast fiber of a tenacious plant and culturing the isolated aerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; obtaining an anaerobic bacterial culture by isolating anaerobic bacteria from bast fiber of a tenacious plant and culturing the isolated anaerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; and degumming barks of a tenacious plant by adding water into a degumming bath, retting the barks to be treated in the bath while maintaining at a temperature of 38°C~40°C and pH of 6.0-7.0 for 45-55 hours, and adding the aerobic bacterial culture and an aerobic bacterial culture one by one or at one time thereto, and placing the mixture for 45-55 hours.
4. A method for degumming bast fiber of a tenacious plant, comprising the steps of: obtaining an aerobic bacterial culture by isolating aerobic bacteria from bast fiber of a tenacious plant and culturing the isolated aerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; obtaining an anaerobic bacterial culture by isolating anaerobic bacteria from bast fiber of a tenacious plant and culturing the isolated anaerobic bacteria under appropriate conditions so as to allow the bacteria to propagate; manufacturing a degumming mother liquid by maintaining a mixture of the bacterial cultures at a temperature of 38 °C~40 °C and a pH of 6.0-7.0 so as to allow both the bacteria to live together therein; degumming barks of a tenacious plant by adding water into a degumming bath, retting the barks to be treated in the bath while maintaining at a temperature of 38 °C~40°C, and adding the degumming mother liquid thereto (a 1st degumming step); further degumming the barks degummed in the above step in the bath while maintaining at an elevated temperature of 60 °C~70°C for 45-55 hours (a 2nd degumming step); washing the degummed barks with a suitable washing agent or foaming agent; and aging the washed barks by emulsifying them with an emulsifier and holding the emulsion at a temperature of 60 °C -70 °C for 46-50 hours.
5. The method as set forth in any one of claims 1 to 4, wherein the degumming bath is purged with oxygen during the degumming process.
6. The method as set forth in claim 4, wherein the emulsifier is yeast extract or palm oil.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2001/26940 | 2001-05-17 | ||
| KR1020010026940A KR20010078916A (en) | 2001-05-17 | 2001-05-17 | A method of removing pectin in bast fiber |
| KR2001/47848 | 2001-08-09 | ||
| KR1020010047848A KR100317476B1 (en) | 2001-05-17 | 2001-08-09 | A method of removing pectin in bast fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002092887A1 true WO2002092887A1 (en) | 2002-11-21 |
Family
ID=26639081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2002/000904 WO2002092887A1 (en) | 2001-05-17 | 2002-05-15 | A method of removing pectin in bast fiber |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100317476B1 (en) |
| WO (1) | WO2002092887A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006100560A1 (en) | 2005-03-21 | 2006-09-28 | Gruppo Fibranova S.R.L. | Process and system for retting plant fibre for textile use |
| CN100334266C (en) * | 2005-12-20 | 2007-08-29 | 东华大学 | Mfg. of fiber for textile by environment protection biological-chemical method |
| DE102006013657A1 (en) * | 2006-03-24 | 2007-09-27 | Micropro Gmbh | Procedure for opening-up of hemp for manufacturing e.g. sails, includes killing microorganisms occurring on fibers by observing stringent ecological condition, and selecting and adapting the microorganisms to open fibers into single strands |
| CN104294376A (en) * | 2014-07-14 | 2015-01-21 | 东华大学 | Method for preparing kenaf fiber by utilizing aneurinibacillus migulanus DY3 strain through retting |
| CN104911935A (en) * | 2015-07-06 | 2015-09-16 | 王月兰 | Method for preparing natural fiber rope by processing kudzu vines |
| CN104928842A (en) * | 2015-07-06 | 2015-09-23 | 王月兰 | Rope production method by using kudzu skin |
| CN105442060A (en) * | 2015-11-11 | 2016-03-30 | 六安市华龙麻纺工艺制品有限公司 | Hemp fiber preparation method |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR626501A0 (en) * | 2001-07-10 | 2001-08-02 | Fibre Laboratory Pty Ltd | Degumming of bast fibres |
| KR100362888B1 (en) * | 2002-04-09 | 2002-11-27 | Hemp Tech Corp | Composite plastic product containing tough bast fiber and its manufacture method |
| KR100704726B1 (en) * | 2006-10-27 | 2007-04-09 | 박선규 | Enterobacter gergoviae hl 2006 useful for degumming bast fiber and degumming method of bast fiber using the enterobacter gergoviae hl 2006 |
| KR100994473B1 (en) * | 2009-10-19 | 2010-11-15 | 주식회사 스카이뉴팜 | A composite plastic containg degummed bast fiber using microbes of enterobacter gergoviae hl 2006 and a making process therefor |
| KR100961886B1 (en) * | 2009-10-19 | 2010-06-09 | 주식회사 스카이뉴팜 | Degumming method of bast fiber using microbes of enterobacter gergoviae hl 2006 |
| KR101761583B1 (en) | 2015-08-28 | 2017-07-26 | 노중균 | A method degumming bast fibers by using microorganisms |
| CN105061606A (en) * | 2015-09-01 | 2015-11-18 | 东华大学 | Method for preparing adsorbable oxycellulose through ramie oxidation degumming process |
| KR102409989B1 (en) * | 2020-07-03 | 2022-06-17 | 한국실크연구원 | Seperating Method of Natural Fiber |
| KR102475234B1 (en) * | 2021-09-29 | 2022-12-12 | 김해곤 | A method for manufacturing kudzu fiber, a method for manufacturing kudzu spun yarn including the same, and a fabric prepared therefrom |
| KR20230002334U (en) | 2022-06-02 | 2023-12-11 | 성기봉 | disposable ice pack |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR850008364A (en) * | 1984-05-07 | 1985-12-16 | 장대익 | Method for refining bast fiber by pure culture group of aerobic bacteria |
| KR890016222A (en) * | 1988-04-07 | 1989-11-28 | 장대익 | Refining method of bast natural fiber |
| KR920006545A (en) * | 1990-09-08 | 1992-04-27 | 한일수 | Hemp dry skin refining method using ERWINIA bacteria |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576818A (en) * | 1984-08-07 | 1986-03-18 | Euroceltique, S.A. | Iodophor composition |
| JPH0373775A (en) * | 1989-08-14 | 1991-03-28 | Toshiba Corp | Information input device for elevator |
| KR20010078916A (en) * | 2001-05-17 | 2001-08-22 | 박선규 | A method of removing pectin in bast fiber |
-
2001
- 2001-08-09 KR KR1020010047848A patent/KR100317476B1/en not_active IP Right Cessation
-
2002
- 2002-05-15 WO PCT/KR2002/000904 patent/WO2002092887A1/en not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR850008364A (en) * | 1984-05-07 | 1985-12-16 | 장대익 | Method for refining bast fiber by pure culture group of aerobic bacteria |
| KR890016222A (en) * | 1988-04-07 | 1989-11-28 | 장대익 | Refining method of bast natural fiber |
| KR920006545A (en) * | 1990-09-08 | 1992-04-27 | 한일수 | Hemp dry skin refining method using ERWINIA bacteria |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006100560A1 (en) | 2005-03-21 | 2006-09-28 | Gruppo Fibranova S.R.L. | Process and system for retting plant fibre for textile use |
| CN100334266C (en) * | 2005-12-20 | 2007-08-29 | 东华大学 | Mfg. of fiber for textile by environment protection biological-chemical method |
| DE102006013657A1 (en) * | 2006-03-24 | 2007-09-27 | Micropro Gmbh | Procedure for opening-up of hemp for manufacturing e.g. sails, includes killing microorganisms occurring on fibers by observing stringent ecological condition, and selecting and adapting the microorganisms to open fibers into single strands |
| CN104294376A (en) * | 2014-07-14 | 2015-01-21 | 东华大学 | Method for preparing kenaf fiber by utilizing aneurinibacillus migulanus DY3 strain through retting |
| CN104911935A (en) * | 2015-07-06 | 2015-09-16 | 王月兰 | Method for preparing natural fiber rope by processing kudzu vines |
| CN104928842A (en) * | 2015-07-06 | 2015-09-23 | 王月兰 | Rope production method by using kudzu skin |
| CN104911935B (en) * | 2015-07-06 | 2017-01-25 | 王月兰 | Method for preparing natural fiber rope by processing kudzu vines |
| CN105442060A (en) * | 2015-11-11 | 2016-03-30 | 六安市华龙麻纺工艺制品有限公司 | Hemp fiber preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010088933A (en) | 2001-09-29 |
| KR100317476B1 (en) | 2001-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2002092887A1 (en) | A method of removing pectin in bast fiber | |
| AU2009337704B2 (en) | Enzymatic preparation of plant fibers | |
| US8591701B2 (en) | Extraction of hemp fibers | |
| WO2007037711A1 (en) | The method of fibrous plant degumming | |
| CN100334266C (en) | Mfg. of fiber for textile by environment protection biological-chemical method | |
| KR100704726B1 (en) | Enterobacter gergoviae hl 2006 useful for degumming bast fiber and degumming method of bast fiber using the enterobacter gergoviae hl 2006 | |
| Foulk et al. | Influence of pectinolytic enzymes on retting effectiveness and resultant fiber properties | |
| KR100861457B1 (en) | Bast fiber and a method thereof by using microbiology | |
| KR101488374B1 (en) | Degumming method of bast fiber and degummed bast fiber using the same | |
| KR100961886B1 (en) | Degumming method of bast fiber using microbes of enterobacter gergoviae hl 2006 | |
| ITCZ20060006A1 (en) | CHEMICAL-PHYSICAL PROCESS FOR THE PRODUCTION OF PLANT FIBERS | |
| CN104233476A (en) | Ionic liquid-chemical combined degumming method | |
| CN100372995C (en) | Process for bio-bleaching of kraft pulp using bacterial consortia | |
| CN113005058A (en) | Apocynum degumming biological preparation and preparation method thereof | |
| EP2703527A1 (en) | Retting procedure for bast plants such as:flax, hemp, jute, etc. | |
| CN102516576B (en) | Method for purifying biological cellulose membrane product | |
| KR100341681B1 (en) | Method for producing bast fiber | |
| CN111676520A (en) | Natural freezing and mechanical combined degumming method for fibrilia | |
| KR20010078916A (en) | A method of removing pectin in bast fiber | |
| KR860001524B1 (en) | Hemp scale bleaching method | |
| KR910004453B1 (en) | Scouring method of natural bast fibers | |
| CN117779210A (en) | Salt dissolving degumming method for hemp/straw | |
| JP2001336022A (en) | Method for collecting kenaf bast fiber | |
| JP2005270950A (en) | Method for degrading fibrous mixture | |
| Mushtaq et al. | Optimization of the novel jute retting process to enhance the fiber quality for textile applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| 32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURS.TO RULE 69(1)EPC(EPO FORM 1205A DATED 220404) |
|
| 122 | Ep: pct application non-entry in european phase | ||
| NENP | Non-entry into the national phase |
Ref country code: JP |
|
| WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |