WO2022015249A1 - Process for manufacturing xylose and xylan solvents from bagasse - Google Patents
Process for manufacturing xylose and xylan solvents from bagasse Download PDFInfo
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- WO2022015249A1 WO2022015249A1 PCT/TH2020/000077 TH2020000077W WO2022015249A1 WO 2022015249 A1 WO2022015249 A1 WO 2022015249A1 TH 2020000077 W TH2020000077 W TH 2020000077W WO 2022015249 A1 WO2022015249 A1 WO 2022015249A1
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- WIPO (PCT)
- Prior art keywords
- xylose
- solvents
- xylan
- bagasse
- solvent
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K13/00—Sugars not otherwise provided for in this class
- C13K13/002—Xylose
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/02—Monosaccharides
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/14—Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase (EC 3.2.x), e.g. by alpha-amylase, e.g. by cellulase, hemicellulase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y302/00—Hydrolases acting on glycosyl compounds, i.e. glycosylases (3.2)
- C12Y302/01—Glycosidases, i.e. enzymes hydrolysing O- and S-glycosyl compounds (3.2.1)
- C12Y302/01008—Endo-1,4-beta-xylanase (3.2.1.8)
Definitions
- Bagasse is a leftover product of the sugarcane industry. Thailand produced about 103,533,437 tons of sugarcane in the period from 2016-2017 (Cane and Sugar Board, 2018), and bagasse made up to about 25% or 24,883,359.25 tons of that amount. Most sugarcane is used in the sugar industry. In the process, the sugar from sugarcane juice, sucrose, is used, and 1 ton of sugarcane can make up to 120 kilograms of granulated sugar. Molasses and bagasse are usable leftover materials from the sugar industry. Molasses is used to produce ethanol and in the food industry, while bagasse is incinerated to generate heat and electrical energy or in the agriculture and paper industries.
- Bagasse sold by factories is priced at 500-600 baht per ton. For this price, the value of bagasse can be increased, because bagasse has important components that can be utilized. Bagasse has three main components, namely lignin, hemicellulose and cellulose at 30% by weight, 30% by weight and 40% by weight, respectively. As can be seen, there is enough bagasse supply and bagasse has sufficiently suitable properties for it to be commercially exploited. In particular, it can be broken down to produce sugar, and the sugar can be used to produce lactic acid or ethanol. Otherwise, the cellulose can be used in the fiber industry. Pure cellulose from bagasse is also used to produce paper for creating high value packaging.
- Lignin can be used to enhance quality and value in many environmentally-friendly products (Nur et al., 2014). It can be used as a precursor material in the production of activated carbon and adhesives; otherwise, it can be used as an absorbent, a phenolic polymer additive, as a rubber strengthened or to absorb heavy metals in wastewater (A. Mancera et al., 2010). It can also be used as a cement binder or epoxy, in packaging films, in food coatings, in cationic biopolymer, in hydrogel and as a biomedical chemical (S.
- Lignin is a substance used to replace chemical ingredients in epoxy, and the wholesale price of lignin is currently 45-208 baht per kilogram (Vinyl Thai, 2018). Lignin has a chemical structure that allows it to be used as a chemical replacement because its polymer structure is in the shape of an aromatic ring that is stable with functional groups sensitive to chemical bonding reactions, which improve product structures and properties, such as through higher strength and increased heat tolerance. Moreover, lignin is safe and environmentally-friendly because it is a natural biomass product Lignin is also cheaper than the original chemical mixed in epoxy (bisphenol A or Bpa).
- lignin can be used to replace bisphenol A or Bpa. Moreover, lignin can be used in the energy industry because lignin is an important component of lithium batteries, as it is used to produce lignosulphonate.
- bagasse is an agroindustry byproduct that can be increased in value and used widely while generating enormous profits for entrepreneurs. While bagasse is suitable for the commercial production of lignin and cellulose, however, utilization of bagasse requires processes and technologies to process and produce products whose characteristics meet various utilization requirements.
- lignin amounts to about 30% by weight of bagasse as tested in the Khon Kaen 3 sugarcane cultivar that is widely grown in Thailand.
- This process can separate lignin from bagasse through chemical methods at appropriate concentrations to produce different classes of lignin according to their usage properties.
- the lignin separation process also provides cellulose as a byproduct at 40% by weight and xylose. Prototype-level research and experimentation found that 1 ton of bagasse in the process can produce up to 0.2-0.25 tons of lignin and 0.3-0.6 tons of cellulose, with additional byproducts including glucose, xylose and arabinose, respectively.
- High-concentration xylose and xylan solvents which are used as precursor substances in the food industry, have high economic value.
- the original method of invention is unable to extract xylose and xylan at a concentration greater than 40% by weight of the total solid soluble. Thus, there is waste without effective utilization.
- This invention solves the problem by providing a process for manufacturing xylose and xylan solvents from bagasse that is able to break down xylose and xylan from the structure of hemicellulose to produce xylose and xylan solvents with concentrations greater than 40% by weight of the total solid soluble to become precursor substances in the food industry and promote the economy and society through farmers' crops.
- the process for manufacturing xylose and xylan solvents from bagasse involves the following steps: a. Bagasse is soaked in a diluted acid solvent with a metallic salt catalyst in a batch reactor to produce hemicellulose. b. The structure of hemicellulose is broken down through reaction with alkaline solvent in a batch reactor. The bagasse is soaked in the alkaline solvent to separate xylose molecules. Then heat is continuously provided to speed up the reaction to break down xylose and xylan from the hemicellulose structure and produce high- concentration xylose and xylan. c. The solvents obtained in b. contain components of lignin salt, alkaline, and sugar solvents.
- the sugar in the solvent contains glucose, arabinose, xylobiose, xylotriose, xylotertaose, xylopentaose, and xylohexaose. Most of these consist of xylose and tetraose.
- the purpose of this invention is to provide a process for manufacturing xylose and xylan solvents from bagasse in order to break down xylose and xylan from the structure of hemicellulose to produce xylose and xylan solvents with concentrations greater than 40% by weight of total solid soluble to be precursor substances for the food industry to promote the economy and society through agricultural crops.
- the process for manufacturing xylose and xylan solvents from bagasse involves the following steps: a. Bagasse with 10-25% moisture content by weight is soaked in a diluted acidic solvent with 0.5-5% concentration by weight. It contains a metallic salt catalyst with 1-20% concentration by weight The ratio of bagasse to solvent is 1:10 weight per volume. It is located in a batch reactor with temperature control for the reaction to be in the range of 20-60 degrees Celsius to produce hemicellulose. b. The structure of hemicellulose is broken down through reaction with an alkaline solvent with concentration at 0.3-5% by weight in a batch reactor. The bagasse is soaked in the alkaline solvent for 6-12 hours. The xylose molecules will then separate.
- xylose and xylan solvents with concentrations greater than 40% by weight of total solid soluble is obtained.
- the solvents obtained in b. contain components of lignin, salt, alkaline and sugar solvents.
- the sugar in the solvent consists of glucose, arabinose, xylose, xylobiose, xylotriose, xylotetraose, xylopentaose, and xylohexaose, most of which consists of xylose and tetraose sugars.
- the process for manufacturing xylose and xylan solvents from bagasse involves the process of separating xylose and xylan solvents from hemicellulose structure with the following steps: a. Lignin is separated as the first component and separated by precipitation in an acidic precipitation environment to obtain xylose and xylan. b. Salts resulting from the production process are separated as the second component, The solvents in a. are neutralized and subjected to an evaporation process at 70-105 degrees
- Xylan is broken down (xylobiose, xylotriose, xylotetraose, xylopentaose and xylohexaose) to produce smaller sugar molecules or xylose through break down of the xylanase enzyme at a starting sugar solvent concentration of 10-45% by weight.
- the xylanase enzyme at 2-20% concentration by weight is added into the sugar solvents, followed by fermentation and effective mixing with temperature control during the reaction to be in the range of 40-60 degrees Celsius over 12-48 hours to produce xylose and xylan solvents.
Abstract
The process for manufacturing xylose and xylan solvents from bagasse involves the following steps: a. Bagasse is soaked in a diluted acid solvent with a metallic salt catalyst in a batch reactor to produce hemicellulose. b. The structure of hemicellulose is broken down through a reaction with alkaline solvent in a batch reactor. The bagasse is soaked in the alkaline solvent to separate xylose molecules. Then heat is continuously provided to speed up the reaction to break down xylose and xylan from the hemicellulose structure and produce high-concentration xylose and xylan. c. The solvents obtained in b. contain components of lignin salt, alkaline, and sugar solvents. The sugar in the solvent contains glucose, arabinose, xylobiose, xylotriose, xyloterta ose, xylopentaose, and xylohexaose. Most of these consist of xylose and tetraose.
Description
PROCESS FOR MANUFACTURING XYLOSE AND XYLAN SOLVENTS FROM BAGASSE
Chemical and food engineering related to the process for manufacturing xylose and xylan solvents from bagasse.
Background of related art or science
Bagasse is a leftover product of the sugarcane industry. Thailand produced about 103,533,437 tons of sugarcane in the period from 2016-2017 (Cane and Sugar Board, 2018), and bagasse made up to about 25% or 24,883,359.25 tons of that amount. Most sugarcane is used in the sugar industry. In the process, the sugar from sugarcane juice, sucrose, is used, and 1 ton of sugarcane can make up to 120 kilograms of granulated sugar. Molasses and bagasse are usable leftover materials from the sugar industry. Molasses is used to produce ethanol and in the food industry, while bagasse is incinerated to generate heat and electrical energy or in the agriculture and paper industries.
Bagasse sold by factories is priced at 500-600 baht per ton. For this price, the value of bagasse can be increased, because bagasse has important components that can be utilized. Bagasse has three main components, namely lignin, hemicellulose and cellulose at 30% by weight, 30% by weight and 40% by weight, respectively. As can be seen, there is enough bagasse supply and bagasse has sufficiently suitable properties for it to be commercially exploited. In particular, it can be broken down to produce sugar, and the sugar can be used to produce lactic acid or ethanol. Otherwise, the cellulose can be used in the fiber industry. Pure cellulose from bagasse is also used to produce paper for creating high value packaging.
A byproduct of bagasse is lignin. Lignin can be used to enhance quality and value in many environmentally-friendly products (Nur et al., 2014). It can be used as a precursor material in the production of activated carbon and adhesives; otherwise, it can be used as an absorbent, a phenolic polymer additive, as a rubber strengthened or to absorb heavy metals in wastewater (A. Mancera et al., 2010). It can also be used as a cement binder or epoxy, in packaging films, in food coatings, in cationic biopolymer, in hydrogel and as a biomedical chemical (S. Aoul-Hrouz et al., 2017), especially in the epoxy industry, which presently has a
market value as high as 5000 million baht per year. Lignin is a substance used to replace chemical ingredients in epoxy, and the wholesale price of lignin is currently 45-208 baht per kilogram (Vinyl Thai, 2018). Lignin has a chemical structure that allows it to be used as a chemical replacement because its polymer structure is in the shape of an aromatic ring that is stable with functional groups sensitive to chemical bonding reactions, which improve product structures and properties, such as through higher strength and increased heat tolerance. Moreover, lignin is safe and environmentally-friendly because it is a natural biomass product Lignin is also cheaper than the original chemical mixed in epoxy (bisphenol A or Bpa). Due to its similar chemical structure and properties, lignin can be used to replace bisphenol A or Bpa. Moreover, lignin can be used in the energy industry because lignin is an important component of lithium batteries, as it is used to produce lignosulphonate. Clearly, bagasse is an agroindustry byproduct that can be increased in value and used widely while generating enormous profits for entrepreneurs. While bagasse is suitable for the commercial production of lignin and cellulose, however, utilization of bagasse requires processes and technologies to process and produce products whose characteristics meet various utilization requirements. Therefore, the process used has to be appropriate, simple and low-cost Of the main components of bagasse, lignin amounts to about 30% by weight of bagasse as tested in the Khon Kaen 3 sugarcane cultivar that is widely grown in Thailand. This process can separate lignin from bagasse through chemical methods at appropriate concentrations to produce different classes of lignin according to their usage properties. In addition, the lignin separation process also provides cellulose as a byproduct at 40% by weight and xylose. Prototype-level research and experimentation found that 1 ton of bagasse in the process can produce up to 0.2-0.25 tons of lignin and 0.3-0.6 tons of cellulose, with additional byproducts including glucose, xylose and arabinose, respectively. High-concentration xylose and xylan solvents, which are used as precursor substances in the food industry, have high economic value. The original method of invention is unable to extract xylose and xylan at a concentration greater than 40% by weight of the total solid soluble. Thus, there is waste without effective utilization.
This invention solves the problem by providing a process for manufacturing xylose and xylan solvents from bagasse that is able to break down xylose and xylan from the structure of hemicellulose to produce xylose and xylan solvents with concentrations greater
than 40% by weight of the total solid soluble to become precursor substances in the food industry and promote the economy and society through farmers' crops.
Invention Characteristics and Objectives
The process for manufacturing xylose and xylan solvents from bagasse involves the following steps: a. Bagasse is soaked in a diluted acid solvent with a metallic salt catalyst in a batch reactor to produce hemicellulose. b. The structure of hemicellulose is broken down through reaction with alkaline solvent in a batch reactor. The bagasse is soaked in the alkaline solvent to separate xylose molecules. Then heat is continuously provided to speed up the reaction to break down xylose and xylan from the hemicellulose structure and produce high- concentration xylose and xylan. c. The solvents obtained in b. contain components of lignin salt, alkaline, and sugar solvents. The sugar in the solvent contains glucose, arabinose, xylobiose, xylotriose, xylotertaose, xylopentaose, and xylohexaose. Most of these consist of xylose and tetraose.
The purpose of this invention is to provide a process for manufacturing xylose and xylan solvents from bagasse in order to break down xylose and xylan from the structure of hemicellulose to produce xylose and xylan solvents with concentrations greater than 40% by weight of total solid soluble to be precursor substances for the food industry to promote the economy and society through agricultural crops.
Full Disclosure of Invention
The process for manufacturing xylose and xylan solvents from bagasse involves the following steps: a. Bagasse with 10-25% moisture content by weight is soaked in a diluted acidic solvent with 0.5-5% concentration by weight. It contains a metallic salt catalyst with 1-20% concentration by weight The ratio of bagasse to solvent is 1:10 weight per volume. It is located in a batch reactor with temperature control for the reaction to be in the range of 20-60 degrees Celsius to produce hemicellulose. b. The structure of hemicellulose is broken down through reaction with an alkaline solvent with concentration at 0.3-5% by weight in a batch reactor. The bagasse is soaked in
the alkaline solvent for 6-12 hours. The xylose molecules will then separate. After heat is provided continuously to speed up the reaction at 60-1 OS degrees Celsius for 4-8 hours to break down xylose and xylan from the hemicellulose structure, xylose and xylan solvents with concentrations greater than 40% by weight of total solid soluble is obtained. c. The solvents obtained in b. contain components of lignin, salt, alkaline and sugar solvents. The sugar in the solvent consists of glucose, arabinose, xylose, xylobiose, xylotriose, xylotetraose, xylopentaose, and xylohexaose, most of which consists of xylose and tetraose sugars.
The process for manufacturing xylose and xylan solvents from bagasse involves the process of separating xylose and xylan solvents from hemicellulose structure with the following steps: a. Lignin is separated as the first component and separated by precipitation in an acidic precipitation environment to obtain xylose and xylan. b. Salts resulting from the production process are separated as the second component, The solvents in a. are neutralized and subjected to an evaporation process at 70-105 degrees
Celsius for 12-24 hours to remove water or until solvents with a concentration of 15 to 25 °Brix are obtained. Then the salts are precipitated through the addition of alcohol with 80- 98% concentration by weight The ratio of sugar solvents to alcohol solvent is 1:2 or 1:3 or 1:4. The salts are removed from the xylose and xylan solvents, and the solvents are distilled to separate alcohol at 80-100 degrees Celsius. Then the solvents obtained are purified again through cation and anion resin to produce xylose and xylan solvents. c. Xylan is broken down (xylobiose, xylotriose, xylotetraose, xylopentaose and xylohexaose) to produce smaller sugar molecules or xylose through break down of the xylanase enzyme at a starting sugar solvent concentration of 10-45% by weight. The xylanase enzyme at 2-20% concentration by weight is added into the sugar solvents, followed by fermentation and effective mixing with temperature control during the reaction to be in the range of 40-60 degrees Celsius over 12-48 hours to produce xylose and xylan solvents.
Best Invention Method
As mentioned in the section of the complete disclosure of the invention.
Claims
1. The process for manufacturing xylose and xylan solvents from bagasse involves the following steps. a. Bagasse is soaked in a diluted acid solvent with a metallic salt catalyst in a batch reactor to produce hemicellulose. b. The structure of hemicellulose is broken down through reaction with alkaline solvent in a batch reactor. The bagasse is soaked in the alkaline solvent to separate xylose molecules. Then heat is continuously provided to speed up the reaction to break down xylose and xylan from the hemicellulose structure and produce high-concentration xylose and xylan. c. The solvents obtained in b. contain components of lignin salt, alkaline, and sugar solvents. The sugar in the solvent contains glucose, arabinose, xylobiose, xylotriose, xylotertaose, xylopentaose, and xylohexaose. Most of these consist of xylose and tetraose.
2. The process for manufacturing xylose and xylan solvents from bagasse in Claim 1 is such that the bagasse has 10-25% moisture content by weight.
3. The process for manufacturing xylose and xylan solvents from bagasse in Claim 1 is such that the acid solvent has a concentration of 0.5-5%.
4. The process for manufacturing xylose and xylan solvents from bagasse in Claim 1 is such that the metallic salt catalyst has a concentration of 1-20% by weight
5. The process for manufacturing xylose and xylan solvents from bagasse in Claim 1 is such that the diluted acid solvent and metallic salt catalyst are used with the bagasse to solvent ratio at 1:10 weight per volume.
6. The process for manufacturing xylose and xylan solvents from bagasse in Claim 1 is such that the bagasse is soaked in a diluted acid solvent with the presence of metallic salt catalyst in a batch reactor with temperature control during the reaction to be in the range of 20-60 degrees Celsius in order to produce hemicellulose.
7. The process for manufacturing xylose and xylan solvents from bagasse in Claim 1 is such that the break down of the structure of hemicellulose is achieved through reaction with an alkaline solvent with a concentration of 0.3-5% by weight
8. The process for manufacturing xylose and xylan solvents from bagasse in Claim 1
is such that the batch reactor is used to soak the bagasse in alkaline solvent for 6-12 hours to separate xylose molecules.
9. The process for manufacturing xylose and xylan solvents from bagasse in Claim 1 is such that the batch reactor is used to soak the bagasse in alkaline solvent for 6-12 hours to separate xylose molecules and, once heat is continuously provided to speed up the reaction at 60-105 degrees Celsius over 4-8 hours to break down xylose and xylan from the hemicellulose structure, xylose and xylan solvents with concentrations greater than 40% by weight of total solid soluble are obtained.
10. The process for manufacturing xylose and xylan solvents from bagasse involves a process to separate xylose and xylan from the structure of hemicellulose in Claims 1-9 with the following steps: a. Lignin is separated as the first component and is separated by precipitation in an acidic precipitation environment to obtain xylose and xylan. b. Salts resulting from the production process are separated as the second component The solvents in a. are neutralized and then subjected to an evaporation process at 70-105 degrees Celsius for 12-24 hours to remove water or until solvents with a concentration of 15 to 25 °Brix are obtained. Then the salts are precipitated through the addition of alcohol with 80-98% concentration by weight The ratio of sugar solvents to alcohol solvent is 1:2 or 1:3 or 1:4. The salts are removed from the xylose and xylan solvents, and the solvents are distilled to separate alcohol at 80-100 degrees Celsius. Then the solvents obtained are purified again through cation and anion resin to produce xylose and xylan solvents. c. Xylan is broken down (xylobiose, xylotriose, xylotetraose, xylopentaose and xylohexaose) to produce smaller sugar molecules or xylose through break down of the xylanase enzyme at a starting sugar solvent concentration of 10-45% by weight The xy!anase enzyme at 2-20% concentration by weight is added into the sugar solvents, followed by fermentation and effective mixing with temperature control during the reaction to be in the range of 40-60 degrees Celsius over 12-48 hours to produce xylose and xylan solvents.
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| TH2001003996 | 2020-07-15 | ||
| TH2001003996 | 2020-07-15 |
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| WO2022015249A1 true WO2022015249A1 (en) | 2022-01-20 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821320A (en) * | 2007-09-07 | 2010-09-01 | 科学与工业研究委员会 | Process for fractionating sugarcane bagasse into high a-cellulose pulp, xylan and lignin |
| CN102409572A (en) * | 2011-09-14 | 2012-04-11 | 四川大学 | New environmentally-friendly process for synthetically separating lignocellulose from bagasse |
| WO2015111086A1 (en) * | 2014-01-21 | 2015-07-30 | Council Of Scientific & Industrial Research | Novel process for conversion of hemicellulose into c5 sugars using ionic liquids |
| CN105669879A (en) * | 2016-04-08 | 2016-06-15 | 浙江农林大学 | Preparation method of xylooligosaccharide |
| CN108004351A (en) * | 2017-12-08 | 2018-05-08 | 山东福田药业有限公司 | A kind of process for purification of xylose hydrolysis fluid |
| CN108359699A (en) * | 2018-02-07 | 2018-08-03 | 北京林业大学 | A kind of H2O2The method that-HOAc coupling pretreatments prepare xylo-oligosaccharide |
| CN109134708A (en) * | 2018-07-25 | 2019-01-04 | 中国科学院广州能源研究所 | A kind of method of lignocellulose-like biomass component separation |
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-
2020
- 2020-12-02 WO PCT/TH2020/000077 patent/WO2022015249A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821320A (en) * | 2007-09-07 | 2010-09-01 | 科学与工业研究委员会 | Process for fractionating sugarcane bagasse into high a-cellulose pulp, xylan and lignin |
| CN102409572A (en) * | 2011-09-14 | 2012-04-11 | 四川大学 | New environmentally-friendly process for synthetically separating lignocellulose from bagasse |
| WO2015111086A1 (en) * | 2014-01-21 | 2015-07-30 | Council Of Scientific & Industrial Research | Novel process for conversion of hemicellulose into c5 sugars using ionic liquids |
| CN105669879A (en) * | 2016-04-08 | 2016-06-15 | 浙江农林大学 | Preparation method of xylooligosaccharide |
| CN108004351A (en) * | 2017-12-08 | 2018-05-08 | 山东福田药业有限公司 | A kind of process for purification of xylose hydrolysis fluid |
| CN108359699A (en) * | 2018-02-07 | 2018-08-03 | 北京林业大学 | A kind of H2O2The method that-HOAc coupling pretreatments prepare xylo-oligosaccharide |
| CN109134708A (en) * | 2018-07-25 | 2019-01-04 | 中国科学院广州能源研究所 | A kind of method of lignocellulose-like biomass component separation |
| CN109942835A (en) * | 2019-03-27 | 2019-06-28 | 广州楹鼎生物科技有限公司 | A method of catalytic decomposition lignocellulose raw material |
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| SHE XIAOQIONG, LI JUN;XU JUN;MO LI-HUAN: "Effect of Different Pretreatment Methods on the Hemicellulose Degradation of Bagasse", PAPER SCIENCE & TECHNOLOGY, vol. 33, no. 6, 31 December 2014 (2014-12-31), pages 11 - 15, XP055887704, ISSN: 1671-4571, DOI: 10.19696/j.issn1671-4571.2014.06.003 * |
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