CN110485187A - A method of releasing steam blasting plant fiber biochemical resistance - Google Patents
A method of releasing steam blasting plant fiber biochemical resistance Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000005422 blasting Methods 0.000 title abstract 4
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- 229920002488 Hemicellulose Polymers 0.000 abstract description 17
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 abstract description 15
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- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
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- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 4
- 239000011487 hemp Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
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- 240000000797 Hibiscus cannabinus Species 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229920006125 amorphous polymer Polymers 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
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- 238000001311 chemical methods and process Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
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- 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
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- 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
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- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/36—Explosive disintegration by sudden pressure reduction
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Abstract
Description
技术领域technical field
本发明属于植物纤维资源化利用技术领域，特别是涉及一种解除蒸汽爆破植物纤维生化抗性的方法。The invention belongs to the technical field of resource utilization of plant fibers, in particular to a method for removing the biochemical resistance of steam-exploded plant fibers.
背景技术Background technique
植物纤维是全球产量和储量最为丰富的天然有机化合物资源，如何更加绿色、精细及高效的使用这种资源始终是学术界和产业界着重解决的问题。植物纤维主要由纤维素、木质素和半纤维素三种物质构成。其中，木质素是一种自然界中体量最大、以天然芳香族化合物作为结构单元、有三维体型结构特征的天然无定形聚合物，半纤维素作为无定形多糖在纤维素纤维和木质素之间起着良好的粘合作用。木质素和半纤维素形成的包覆物包覆在纤维素表面，导致植物纤维有着较高的生物抗性。所以，为了提高植物纤维的资源化利用效率，通常需要对植物纤维进行预处理。Plant fiber is the natural organic compound resource with the most abundant output and reserves in the world. How to use this resource more greenly, finely and efficiently has always been a problem that academia and industry focus on. Plant fibers are mainly composed of three substances: cellulose, lignin and hemicellulose. Among them, lignin is a natural amorphous polymer with the largest volume in nature, with natural aromatic compounds as structural units, and three-dimensional structure characteristics. Hemicellulose is an amorphous polysaccharide between cellulose fibers and lignin. Plays a good bonding role. The coating formed by lignin and hemicellulose coats the surface of cellulose, resulting in high biological resistance of plant fibers. Therefore, in order to improve the resource utilization efficiency of plant fibers, it is usually necessary to pretreat plant fibers.
蒸汽爆破预处理植物纤维是一种高效的植物纤维预处理技术，主要包括间歇式蒸汽爆破处理技术和连续式蒸汽爆破处理技术，使用的蒸汽通常有饱和水蒸气和氨气。蒸汽爆破法处理植物纤维通常只能够有效的降解植物纤维中的半纤维素，无法有效的脱出木质素。在蒸汽爆破处理过程中，半纤维素降解形成的糠醛类物质会残留在植物纤维表面，木质素只能发生有限的断裂。糠醛的生物毒性以及木质素形成的包覆物低效脱出仍然会使得预处理后的植物纤维有着较高的生化抗性，有碍于植物纤维的进一步资源化利用。Steam explosion pretreatment of plant fibers is an efficient plant fiber pretreatment technology, mainly including intermittent steam explosion treatment technology and continuous steam explosion treatment technology, and the steam used is usually saturated water vapor and ammonia. Steam explosion treatment of plant fibers can only effectively degrade hemicellulose in plant fibers, but cannot effectively remove lignin. During the steam explosion treatment, the furfural substances formed by the degradation of hemicellulose will remain on the surface of plant fibers, and the lignin can only be broken to a limited extent. The biotoxicity of furfural and the low efficiency of the coating formed by lignin will still make the pretreated plant fiber have high biochemical resistance, which hinders the further resource utilization of plant fiber.
目前，专利CN201711166518.2公开了一种提高麻类秸秆酶解糖化效率的方法，提出了使用白腐菌和碱液联合预处理高麻类秸秆，在该专利提供的方法中，麻类纤维经高温灭活后首先使用白腐菌预处理7-28天，再使用低浓度的碱和双氧水混合溶液处理20-30h，预处理产物经酶解制的葡萄糖。其中，苎麻秸秆葡萄糖得率为395mg/g，大麻秸秆葡萄糖得率为372mg/g，红麻秸秆葡萄糖得率为387mg/g。该专利所提供的方法虽然解除了植物纤维的生化抗性，使得植物纤维有较高的葡萄糖得率，但是预处理时间较长，预处理条件苛刻，预处理过程中使用了双氧水及强碱等化学物质，产生的预处理废液有较高的环境风险。所以，植物纤维生化抗性的解除仍然需要一种速度快、可靠性高、流程简单的方法。At present, the patent CN201711166518.2 discloses a method to improve the efficiency of enzymatic hydrolysis and saccharification of hemp straw, and proposes to use white rot fungi and lye to pretreat high hemp straw. In the method provided by the patent, the hemp fiber is After high-temperature inactivation, first use white rot bacteria to pretreat for 7-28 days, and then use a low-concentration alkali and hydrogen peroxide mixed solution to treat for 20-30 hours, and the pretreated product is glucose produced by enzymatic hydrolysis. Among them, the glucose yield of ramie straw is 395mg/g, the glucose yield of hemp straw is 372mg/g, and the glucose yield of kenaf straw is 387mg/g. Although the method provided by this patent relieves the biochemical resistance of the plant fiber and makes the plant fiber have a higher glucose yield, the pretreatment time is longer and the pretreatment conditions are harsh. Hydrogen peroxide and strong alkali are used in the pretreatment process. Chemical substances, the pretreatment waste liquid produced has a high environmental risk. Therefore, the release of plant fiber biochemical resistance still needs a method with high speed, high reliability and simple process.
超临界二氧化碳流体处理技术作为一种新兴的绿色化学工艺技术可以高效且经济的分离植物纤维中的小分子有机物，乙醇作为一种有机溶剂通常会用于溶解植物纤维中的半纤维素和木质素的降解物，有机溶剂制浆过程中引入超临界CO2流体可以温和的解聚木质素。所以，以超临界CO2流体作为核心介质，以乙醇等溶剂作为辅助介质，则有望在降低植物纤维生化抗性领域发挥重要的作用。As an emerging green chemical process technology, supercritical carbon dioxide fluid treatment technology can efficiently and economically separate small molecular organic compounds in plant fibers. Ethanol, as an organic solvent, is usually used to dissolve hemicellulose and lignin in plant fibers The introduction of supercritical CO 2 fluid during organosolvent pulping can gently depolymerize lignin. Therefore, using supercritical CO 2 fluid as the core medium and solvents such as ethanol as the auxiliary medium is expected to play an important role in reducing the biochemical resistance of plant fibers.
综上所述，本发明开发了一种解除蒸汽爆破植物纤维生化抗性的方法，通过使用一种由超临界CO2流体、乙醇和水组成的具有流动性的混合物，在超临界反应系统中能够高效的解除蒸汽爆破植物纤维的生化抗性。To sum up, the present invention develops a method to relieve the biochemical resistance of steam explosion plant fibers by using a fluid mixture composed of supercritical CO2 fluid, ethanol and water, in a supercritical reaction system It can effectively relieve the biochemical resistance of steam explosion plant fibers.
附图说明Description of drawings
图1是本发明的流程示意图。Fig. 1 is a schematic flow chart of the present invention.
发明内容Contents of the invention
本发明的目的在于提供一种解除蒸汽爆破植物纤维生化抗性的方法。本发明具有工艺简单、条件温和的优点，实现了蒸汽爆破植物纤维中半纤维素的高效降解、发酵抑制物的高效脱出以及木质素的高效解离，有效的降低了蒸汽爆破处理植物纤维的生化抗性，获得植物纤维用于酶解制糖则拥有较高的葡萄糖得率。The purpose of the present invention is to provide a method for removing the biochemical resistance of steam explosion plant fibers. The invention has the advantages of simple process and mild conditions, realizes the efficient degradation of hemicellulose in steam-exploded plant fibers, the efficient removal of fermentation inhibitors and the efficient dissociation of lignin, and effectively reduces the biochemical degradation of steam-exploded plant fibers. Resistance, obtaining plant fiber for enzymatic sugar production has a higher glucose yield.
为了达到上述的目的，本发明采取以下技术方案：In order to achieve the above-mentioned purpose, the present invention takes the following technical solutions:
一种解除蒸汽爆破植物纤维生化抗性的方法，该方法通过将蒸汽爆破植物纤维送入超临界反应系统中，利用超临界CO2流体、乙醇和水组成的具有流动性的混合物对蒸汽爆破植物纤维进行提取。A method for removing the biochemical resistance of steam-exploded plant fibers, the method sends steam-exploded plant fibers into a supercritical reaction system, and utilizes a fluid mixture of supercritical CO2 fluid, ethanol and water to steam-exploded plants Fiber is extracted.
进一步地，在上述方法中，所述蒸汽爆破植物纤维选自包括但不限于饱和/ 过饱和水蒸气、饱和/过饱和氨蒸汽等饱和/过饱和蒸汽介质的间歇式蒸汽爆破工艺、连续式蒸汽爆破工艺获得的蒸汽爆破桉木纤维、蒸汽爆破水稻秸秆、蒸汽爆破小麦秸秆、蒸汽爆破玉米秸秆和蒸汽爆破棉杆秸秆中的一种。Further, in the above method, the steam-exploded plant fiber is selected from intermittent steam explosion process, continuous steam explosion process, and continuous steam medium including but not limited to saturated/supersaturated steam, saturated/supersaturated ammonia steam, etc. The invention relates to one of steam-exploded eucalyptus fiber, steam-exploded rice straw, steam-exploded wheat straw, steam-exploded corn straw and steam-exploded cotton stalk obtained by the explosion process.
进一步地，在上述方法中，所述超临界CO2流体、乙醇和水的体积比为 1:0.4～5。Further, in the above method, the volume ratio of the supercritical CO 2 fluid, ethanol and water is 1:0.4-5.
进一步地，在上述方法中，所述蒸汽爆破植物纤维与乙醇水溶液的液固比为10～50ml:1g。Further, in the above method, the liquid-solid ratio of the steam-exploded plant fiber to the aqueous ethanol solution is 10-50ml:1g.
进一步地，在上述方法中，所述提取温度为120-190℃，提取压力为 12-18MPa，提取时间40-120min。Further, in the above method, the extraction temperature is 120-190°C, the extraction pressure is 12-18MPa, and the extraction time is 40-120min.
本发明以超临界CO2流体、乙醇和水组成的具有流动性的混合物作为解除植物纤维生化抗性的介质，有效的降低了蒸汽爆破植物纤维的生化抗性，获得的植物纤维能够广泛应用于制备复合材料、沼气-有机肥联产以及化工原料生产领域。The present invention uses a fluid mixture composed of supercritical CO2 fluid, ethanol and water as a medium for removing the biochemical resistance of plant fibers, effectively reducing the biochemical resistance of steam-exploded plant fibers, and the obtained plant fibers can be widely used in Preparation of composite materials, biogas-organic fertilizer co-production and production of chemical raw materials.
本发明采用的由超临界CO2流体、乙醇和水组成的高温高压流体组合物在 120-190℃以及12-18MPa的条件下，存在两种化学反应，反应方程式如式1和式2。The high-temperature and high-pressure fluid composition composed of supercritical CO2 fluid, ethanol and water used in the present invention has two chemical reactions under the conditions of 120-190°C and 12-18MPa, and the reaction equations are as formula 1 and formula 2.
具有流动性的混合物通过反应式1形成的碳酸可以有效的分解蒸汽爆破植物纤维中的半纤维素、切断木质素与半纤维素的连接键以及木质素内部的醚键，超临界CO2流体能够破坏植物纤维中纤维素同半纤维素间的次价键。进一步的，通过碳酸对半纤维素的酸解，植物纤维内部形成了较高的孔隙率，超临界CO2流体的高渗透能力能够充分渗入植物纤维内部。同时，由于乙醇与超临界CO2流体互溶，乙醇也能够跟随超临界CO2流体进入蒸汽爆破植物纤维内部，充分溶胀植物纤维，高效断裂木质素内部的β-O-4，并进一步降解半纤维素。The carbonic acid formed by the fluid mixture through Reaction Equation 1 can effectively decompose the hemicellulose in the steam-exploded plant fiber, cut off the link between lignin and hemicellulose and the ether bond inside the lignin. The supercritical CO 2 fluid can Destroy the secondary bonds between cellulose and hemicellulose in plant fibers. Furthermore, through the acid hydrolysis of hemicellulose by carbonic acid, a higher porosity is formed inside the plant fiber, and the high permeability of the supercritical CO 2 fluid can fully penetrate into the inside of the plant fiber. At the same time, because ethanol is miscible with supercritical CO2 fluid, ethanol can also follow the supercritical CO2 fluid into the steam-exploded plant fiber, fully swell the plant fiber, effectively break the β-O-4 inside the lignin, and further degrade the hemifiber white.
高温高压组合流体通过反应式2的限制了乙醇对脱出物质的进一步碎片化处置。形成的乙酸和甲醛由于具有较高的反应活性可以同断裂后生成的羟基、Cα或Cβ迅速发生缩合反应或加成反应形成新的醚键，这一反应在保持分离后植物纤维上残留木质素反应活性的同时，有效的阻滞分离出来的木质素通过脱水缩合反应再次同植物纤维残留的木质素键合。由于乙醇的低介电常数特性可以有效降低分离木质素的表面张力，进一步的提高了超临界流体组合对分离木质素的溶解和携带能力，从而保证分离出来的木质素能够迅速转移出反应体系。The combination of high temperature and high pressure fluid through reaction formula 2 limits the further fragmentation of ethanol to the extracted substances. The formed acetic acid and formaldehyde can quickly undergo condensation reaction or addition reaction with the hydroxyl, C α or C β generated after the cleavage due to their high reactivity to form new ether bonds. This reaction remains on the plant fiber after the separation At the same time of lignin reactivity, it can effectively block the separated lignin from rebonding with the remaining lignin of plant fibers through dehydration condensation reaction. The low dielectric constant of ethanol can effectively reduce the surface tension of the separated lignin, which further improves the dissolving and carrying capacity of the supercritical fluid combination for the separated lignin, thereby ensuring that the separated lignin can be quickly transferred out of the reaction system.
本发明采用的反应体系中，半纤维素的乙酰基也会同步发生断裂，与乙醇形成酸性乙醇环境，使木质素化学结构单元之间的β-O-4键和部分α-O-4键断裂，木质素大分子碎片化的同时，也破坏了木质素同半纤维素形成的无定型区域。较高的温度意味着乙醇拥有更高的活性，木质素内部化学键和次价键断裂的速度、半纤维素降解速度都会加快，木质素与半纤维素连接键的断裂的效率提高，各组分间分离程度增加。多余的、未参与反应的乙醇跟随超临界CO2流体沿着前期被高温高压组合流体协同作用破坏的区域进一步渗入植物纤维深处，协同形成的碳酸继续破坏纤维素、木质素以及半纤维素三者间的连接区域，切断各组分之间的化学交联，最终达到高效降低植物纤维生物抗性的目的。In the reaction system adopted in the present invention, the acetyl group of hemicellulose will also be broken simultaneously, forming an acidic ethanol environment with ethanol, so that the β-O-4 bonds and part of the α-O-4 bonds between the lignin chemical structural units Fragmentation of lignin macromolecules also destroys the amorphous region formed by lignin and hemicellulose. Higher temperature means that ethanol has higher activity, the speed of breaking chemical bonds and secondary bonds inside lignin, and the degradation rate of hemicellulose will be accelerated, and the efficiency of breaking the connection between lignin and hemicellulose will be improved. The degree of separation increases. The excess ethanol that has not participated in the reaction follows the supercritical CO 2 fluid and further infiltrates into the depth of the plant fiber along the area previously destroyed by the high temperature and high pressure combined fluid synergy, and the synergistically formed carbonic acid continues to destroy cellulose, lignin and hemicellulose. The connection area between them cuts off the chemical cross-linking between the components, and finally achieves the purpose of effectively reducing the biological resistance of plant fibers.
本发明具有以下有益效果：The present invention has the following beneficial effects:
本发明提供了一种利用超临界CO2流体、乙醇和水组成的具有流动性的混合物高效降低蒸汽爆破植物的生物抗性的工艺，该工艺最终获得的植物纤维具有较高的生化活性，有较高的葡萄糖产率。The invention provides a process for efficiently reducing the biological resistance of steam-exploded plants by using a fluid mixture composed of supercritical CO2 fluid, ethanol and water. The plant fiber finally obtained by the process has high biochemical activity and is effective. Higher glucose yield.
本发明工艺流程对设备材料性能要求低，辅助原料种类简单，可循环使用，植物纤维活化效率较高，活化条件相对较为温和，实用推广性强。The technological process of the invention has low requirements on the performance of equipment materials, simple types of auxiliary raw materials, recyclable use, high activation efficiency of plant fibers, relatively mild activation conditions, and strong practicality and popularization.
具体实施方式Detailed ways
为使本发明实施例的目的、技术方案和优点更加清楚，下面将对本发明实施例的技术方案进行清楚、完整的描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明的保护范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
除非另作定义，本公开所使用的技术术语或者科学术语应当为本发明所属领域内有一般技能的人士所理解的通常意义。Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present invention belongs.
以下实施例中的蒸汽爆破桉木纤维、蒸汽爆破水稻秸秆、蒸汽爆破小麦秸秆可以为通过饱和/过饱和水蒸气、饱和/过饱和氨蒸汽等饱和/过饱和蒸汽介质的间歇式蒸汽爆破工艺、连续式蒸汽爆破工艺等工艺获得的。The steam-exploded eucalyptus fiber, steam-exploded rice straw, and steam-exploded wheat straw in the following examples can be intermittent steam explosion processes through saturated/supersaturated steam media such as saturated/supersaturated steam, saturated/supersaturated ammonia steam, Obtained by continuous steam explosion process and other processes.
实施例1：Example 1:
蒸汽爆破桉木纤维送入超临界提取系统中，按照25:1的液固比(v:m)配置乙醇水溶液(v乙醇:v水＝1:0.5)，在140℃条件下通入CO2，压力升至14MPa，通入乙醇水溶液，连续提取60min后，释放超临界提取系统的压力，物料冷却至室温，收集处理后的桉木纤维，流程如图1所示。The steam-exploded eucalyptus fiber is sent to the supercritical extraction system, and the ethanol aqueous solution (v ethanol :v water = 1:0.5) is prepared according to the liquid-solid ratio (v:m) of 25:1, and CO 2 is introduced at 140°C , the pressure was raised to 14MPa, the ethanol aqueous solution was introduced, and after continuous extraction for 60min, the pressure of the supercritical extraction system was released, the material was cooled to room temperature, and the treated eucalyptus fibers were collected. The flow chart is shown in Figure 1.
利用纤维素酶对处理过的桉木纤维进行酶解，葡萄糖得率如表1所示。The treated eucalyptus fiber was enzymatically hydrolyzed by cellulase, and the yield of glucose is shown in Table 1.
实施例2：Example 2:
蒸汽爆破水稻秸秆送入超临界提取系统中，按照40:1的液固比(v:m)配置乙醇水溶液(v乙醇:v水＝1:0.5)，在160℃条件下通入CO2，压力升至16MPa，通入乙醇水溶液，连续提取80min后，释放超临界提取系统的压力，物料冷却至室温，收集处理后的水稻秸秆。The steam-exploded rice straw is sent to the supercritical extraction system, and the ethanol aqueous solution (v ethanol :v water = 1:0.5) is prepared according to the liquid-solid ratio (v:m) of 40:1, and CO 2 is introduced at 160°C. The pressure was raised to 16 MPa, and the ethanol aqueous solution was introduced, and after continuous extraction for 80 minutes, the pressure of the supercritical extraction system was released, and the material was cooled to room temperature, and the treated rice straw was collected.
利用纤维素酶对处理过的水稻秸秆进行酶解，葡萄糖产率如表1所示。The treated rice straw was hydrolyzed by cellulase, and the glucose yield was shown in Table 1.
实施例3：Example 3:
蒸汽爆破小麦麦秆送入超临界提取系统中，按照15:1的液固比(v:m)配置乙醇水溶液(v乙醇:v水＝1:0.5)，在180℃条件下通入CO2，压力升至18MPa，通入乙醇水溶液，连续提取120min后，释放超临界提取系统的压力，物料冷却至室温，收集处理后的小麦麦秆。The steam-exploded wheat straw is sent to the supercritical extraction system, and the ethanol aqueous solution (v ethanol :v water = 1:0.5) is prepared according to the liquid-solid ratio (v:m) of 15:1, and CO 2 is introduced at 180°C , the pressure was raised to 18 MPa, and the ethanol aqueous solution was passed through, and after continuous extraction for 120 minutes, the pressure of the supercritical extraction system was released, the material was cooled to room temperature, and the treated wheat straw was collected.
利用纤维素酶对处理过的水稻秸秆进行酶解，葡萄糖得率如表1所示。The treated rice straw was enzymatically hydrolyzed with cellulase, and the yield of glucose is shown in Table 1.
表1葡萄糖得率对比Table 1 Glucose Yield Comparison
由表1，同其他常用方法相比，本专利提供的方法获得的植物纤维由于有着较低的生化抗性，葡萄糖产率更高。From Table 1, compared with other commonly used methods, the plant fiber obtained by the method provided by this patent has lower biochemical resistance and higher glucose yield.
以上实施例的说明只是用于帮助理解本发明方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求保护范围内。The descriptions of the above embodiments are only used to help understand the method of the present invention and its core idea. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
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