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222
resultados
Última actualización
10/10/2025 [06:55:00]
Resultados 50 a 75 de 222
Resumen de: WO2024119202A1
The invention relates to a lipase isolated from the goat gut rumen metagenome having protein SEQ ID 1 of 298 amino acids and being encoded for by gene SEQ ID1. The invention relates more specifically to this lipase being engineered to be an immobilised lipase, the same being immobilised on Polyethylene glycol (PEG) coated iron Magnetic Nanoparticles (MNPs). The immobilised lipase is indicated for use in a method of converting a waste oil to biodiesel, the method comprising utilizing the immobilised lipase to catalyse the conversion of said waste oils to biodiesel in the presence of a short-chain alcohol. The triacylglycerol in the waste oils being converted to alkyl esters (biodiesel) and glycerin in a reaction with an alcohol which is catalysed by said lipases.
Resumen de: EP4628605A1
Sintering materials include: a crushed product of a compression-molded product obtained by crushing the compression-molded product (S112) obtained by compressing and molding an aggregate of carbonized wood; and at least one of coke breeze or anthracite, and the compression-molded product has an envelope density of 0.6 g/cm<sup>3</sup> or more.
Resumen de: AU2025230691A1
A method for preparing medium-chain fatty acids (MCFAs) based on carbon dioxide (CO2) regulation, including: inoculating a microorganism to a substrate system to prepare MCFAs, where the microorganism is capable of producing MCFAs by carbon chain elongation (CCE); the substrate system includes an electron donor and an electron acceptor or electron acceptor precursor; and the CO2 in a reactor is controlled within a certain concentration range. A method for preparing medium-chain fatty acids (MCFAs) based on carbon dioxide (CO) regulation, including: inoculating a microorganism to a substrate system to prepare MCFAs, where the microorganism is capable of producing MCFAs by carbon chain elongation (CCE); the substrate system includes an electron donor and an electron acceptor or electron acceptor precursor; and the CO in a reactor is controlled within a certain concentration range. ep e p m e t h o d f o r p r e p a r i n g m e d i u m - c h a i n f a t t y a c i d s ( s ) b a s e d o n c a r b o n d i o x i d e ( ) r e g u l a t i o n , i n c l u d i n g : i n o c u l a t i n g a m i c r o o r g a n i s m t o a s u b s t r a t e s y s t e m t o p r e p a r e s , w h e r e t h e m i c r o o r g a n i s m i s c a p a b l e o f p r o d u c i n g s b y c a r b o n c h a i n e l o n g a t i o n ( ) ; t h e s u b s t r a t e s y s t e m i n c l u d e s a n e l e c t r o n d o n o r a n d a n e l e c t r o n a c c e p t o r o r e l e c t r o n a c c e p t o r p r e c u r s o r ; a n d
Resumen de: US2025305006A1
The present invention relates to a variant pullulanase, having increased thermo-stability and/or increased thermo-activity compared to a parent pullulanase, comprising a substitution at least a one position selected from a position corresponding to positions 432, 486, 370, 17, 77, 103, 106, 107, 190, 196, 197, 262, 279, 283, 321, 367, 375, 382, 399, 401, 402, 411, 412, 434, 435, 443, 446, 459, 460, 479, 490, 498, 514, 529, 531, 533, 541, 545, 581, 583, 595, 649, 665, 688, 700, 709, 804, 811 of SEQ ID NO: 1, and optionally a deletion of one or more, e.g., all amino acids at positions 821, 822, 823, 824, 825, 826, 827, and 828, wherein the variant has pullulanase activity, and wherein the variant has at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, or at least 99%, but less than 100% sequence identity to a parent alpha amylase selected from the group consisting of SEQ ID NO: 1, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5.Further aspect the present invention relates to a process for liquefying starch-containing material at a temperature above the initial gelatinization temperature using an alpha-amylase and a thermo-stable pullulanase of the invention.
Resumen de: US2025305012A1
In a method for preparing a keto acid, an enzymatic reaction is carried out by using glycine and an alcoholic organic substance as substrates; the alcoholic organic substance is converted into an aldehyde organic substance, glycine and the aldehyde organic substance are converted into a β-hydroxy-α-amino acid, and then the β-hydroxy-α-amino acid is converted into a keto acid. The preparation method for a keto acid can also be used in the preparation of amino acids. The number of enzymes used is much less than that of enzymes used in a natural synthesis route, so that the production cost is low. An artificial metabolism platform for keto acids is established and can produce multiple important keto acids, such as phenylpyruvic acid, 4-methyl-2-oxopentanoic acid, pyruvic acid and 2-oxo-butyric acid.
Resumen de: EP4624565A2
Methods and materials for genetically engineering methylotrophic yeast are provided.
Resumen de: EP4624568A2
Described herein are recombinant yeast cells expressing a xylulose kinase (XK) whihch are suitable for fermentation of pentoses. Also described are recombinant yeast cells with higher toleranance to formic and/or acetic acid and suitable for fermentation of pentoses. Also described are recombinant yeast cells expressing an enolase, a phophofructokinase beta subunit, a 6-phosphofructo-2-kinase, a glucose-6-phosphate isomerase, a phosphoglycerate mutase and/or a triose-phosphate isomerase, and suitable for fermentation of pentoses. Also described are recombinant yeast cells expressing a a phosphoglucomutase and/or phosphoribomutase which are suitable for fermentation of pentoses. Further described are are methods of using or producing such recombinant yeast cells and related materials.
Resumen de: FR3160415A1
BACTERIES CLOSTRIDIUM MODIFIEES PRODUISANT DE L’ETHANOL, PREPARATION ET UTILISATIONS DE CELLES-CI La présente invention concerne la modification génétique de bactéries du genre Clostridium, typiquement de bactéries solvantogènes du genre Clostridium, de manière à permettre la production d’éthanol par lesdites bactéries. Sont en outre décrits des méthodes, outils et kits permettant l’obtention desdites bactéries, les bactéries génétiquement modifiées obtenues et leurs utilisations.
Resumen de: WO2025196388A1
The invention relates to the genetic modification of bacteria of the genus Clostridium, typically solventogenic bacteria of the genus Clostridium, so as to allow the production of ethanol by said bacteria. Additionally described are methods, tools and kits for obtaining said bacteria, the genetically modified bacteria obtained, and the uses of same.
Resumen de: EP4621060A1
A method for lignocellulose hydrolysis is provided. The method includes: crushing an agroforestry biomass feedstock to a particle size of 60-80 mesh, extracting with a toluene-ethanol solution, and drying at a constant temperature to obtain a de-extracted feedstock; weighing a metal salt and glycerol with a molar ratio of 1:10-1:124 for mixing at a temperature of 80 ° C - 90 ° C and a stirring speed of 180 rpm to obtain a type IV deep eutectic solvent which is homogeneous and transparent; weighing the de-extracted feedstock and adding to the type IV deep eutectic solvent prepared, and reacting for 2-4 h at a temperature of 80 ° C - 120 ° C and a stirring speed of 300 rpm-500 rpm to obtain a pretreatment mixture; performing a solid-liquid separation to the pretreatment mixture to obtain a filter residue and a filtrate, and then drying the filter residue after washing to obtain a lignocellulose residue after pretreatment; and performing enzymatic hydrolysis reaction to the lignocellulose residue to obtain fermentable sugar.
Resumen de: WO2024105280A1
A method of making an ethanol composition and a separate galactose composition by fermentation is described. The method does not require wheat substrates and does not require a distillation step to separate out the ethanol. The methods comprises treating the lactose containing substrate with a beta-galactosidase enzyme to provide an enzyme treated substrate in which at least some of the lactose in the substrate has been enzymatically converted into glucose and galactose, fermenting in a fermentation medium comprising the enzyme-treated substrate a glucose fermenting yeast to provide a fermentation broth containing ethanol and galactose, and separating the fermentation broth into an ethanol composition and a separate galactose composition. The fermentation broth is generally separated by reverse osmosis into a retentate and a permeate, in which the permeate is the ethanol composition and the retentate is the galactose composition.
Resumen de: CN223352163U
本实用新型涉及生物质颗粒领域,特别涉及一种生物质颗粒的分级筛选设备，包括箱体，所述箱体的两侧外壁均开设有出料口，且箱体内壁位于一侧的出料口处安装有筛选结构，所述箱体的两侧外壁底部处均安装有支撑组件，且箱体的一侧外壁安装有输送管，且输送管的内壁中心处转动连接有螺旋输送轴；所述输送管一侧设有添加斗；筛选结构包括安装在箱体内壁四角的连接块、安装在连接块顶部外壁的弹簧和连接在弹簧顶端外壁的筛网；支撑组件包括安装在箱体外壁的支撑块、开设在支撑块底部外壁中心处的缓冲槽和滑动连接在缓冲槽中的支撑腿。本实用新型输送电机后调档螺旋输送轴旋转，将添加斗中的物料向上输送到箱体的顶部处，物料从箱体顶部落下，便于添加物料。
Resumen de: CN223351800U
本实用新型公开了生物质颗粒加工用破料过滤装置，包括筛分滤网架，所述筛分滤网架的两侧面均设置有振动过滤加强机构，所述振动过滤加强机构包括连接支撑板，所述连接支撑板一侧面的顶部通过开设通槽固定连接有限位轴杆，所述限位轴杆的表面滑动连接有可滑动调整块，所述可滑动调整块的一端固定连接有调节弹簧，所述调节弹簧的一端固定连接有辅助固定块。本实用新型通过筛分滤网架、振动过滤加强机构的设置，振动过滤加强机构产生振动，使得筛分滤网架不断地沿着竖直方向往复上下，同筛网被固定相比，增加筛分滤网架的振动频率更加能筛出等分大小的生物质颗粒，从而增加生物质颗粒筛分时的精度，使其尽量达到最佳的筛分效果。
Resumen de: CN223356461U
本实用新型公开了一种生物质颗粒加工用存储仓，包括存储仓罐，所述存储仓罐的顶部外壁铰接有圆形密封盖，且圆形密封盖的顶部一侧焊接有进料斗，所述进料斗的一端转动设置有旋转轴，且旋转轴顶部外壁焊接有密封盖板，所述旋转轴底部外壁焊接有蜗轮，且蜗轮的一侧啮合有蜗杆，所述蜗杆的一端与伺服电机输出轴相互连接，且存储仓罐的内壁固定有温度传感器，所述存储仓罐的底部内壁转动安装有旋转搅拌管；本实用新型通过在存储仓罐的内部设置温度传感器，从而能够实时反馈堆积的生物质颗粒内部温度情况，并配合不断抽气的旋转搅拌管，从而能够将内部的高温气体快速抽走，降低存储仓罐内部温度，避免温度过高导致生物质颗粒点燃。
Resumen de: CN223351617U
本实用新型属于生物柴油制备技术领域，具体涉及一种无催化醇解制备生物柴油的装置。包括高压罐，高压罐上设有第一进料口、第二进料口和抽真空口，第二进料口连通进料管，进料管通过第一轴承连通第一输液腔，第一输液腔外套设第一齿轮，高压罐内设有第一电机，第一电机底座连接高压罐顶壁，第一电机输出端连接第二齿轮，第一齿轮和第二齿轮相互啮合，形成第一齿轮可与第二齿轮同步转动的结构，第一输液腔下端面连通第一导液管，第一导液管外套设第二轴承并通过第二轴承连通第二输液腔，第二输液腔外套设第三齿轮，第一输液腔底部设有第二电机，第二电机底座连接第一输液腔下端面，本实用新型可以将废弃动物油脂与甲醇充分混合反应。
Resumen de: AU2024249204A1
The present disclosure provides a biomass solid fuel containing a biomass carbide containing polysaccharides, the content of mannose contained as a constituent sugar being 7.0 mass% or less. The present disclosure also provides a method for producing the biomass solid fuel, the production method comprising a heating step for heating a biomass molded body that contains polysaccharides, contains xylose as a constituent sugar, and has a mannose content of 9.0 mass% or less to thereby obtain the biomass solid fuel. In the heating step, the reduction rate of the xylose when the biomass solid fuel is obtained from the biomass molded body is 45.0% or greater.
Resumen de: US2025290082A1
Various embodiments disclosed relate to a fermentation method for producing malonate. The fermentation method includes a) culturing a microorganism in the presence of a fermentation medium. The fermentation medium includes at least one carbon source; calcium ions ranging from 0.05 g/L to 1.6 g/L; and a base other than a calcium containing base. The fermentation method further comprises b) producing at least 40 grams/liter of malonate. Optionally, the malonate is produced at a rate of at least 0.3 g L−1 h−1 to 5 g L−1 h−1.
Resumen de: US2025290107A1
A method for lignocellulose hydrolysis is provided. The method includes: crushing an agroforestry biomass feedstock, extracting with a toluene-ethanol solution, and drying to obtain a de-extracted feedstock; weighing a metal salt and glycerol for mixing to obtain a type IV deep eutectic solvent; weighing the de-extracted feedstock and adding into the type IV deep eutectic solvent, and reacting for 2 h-4 h at a temperature of 80° C.-120° C. and a stirring speed of 300 rpm-500 rpm to obtain a pretreatment mixture; performing a solid-liquid separation to the pretreatment mixture to obtain a filter residue and a filtrate, and then drying the filter residue after washing to obtain a lignocellulose residue after pretreatment; and performing enzymatic hydrolysis reaction to the lignocellulose residue to obtain fermentable sugar.
Resumen de: US2025290001A1
A method for making a motor fuel includes converting a mixture comprising one or more C2-C4 alkenes, synthesis gas, and acetaldehyde to a mixture comprising C3-C4 aldehydes and C5-C8 aldols; hydrogenating the mixture comprising C3-C4 aldehydes and C5-C8 aldols to obtain a mixture comprising C3-C8 alcohols; converting the C3-C8 alcohols into C6-C24 paraffins; and isolating a fraction of the C6-C24 paraffins. The isolated fraction may be used to formulate a motor fuel.
Resumen de: WO2025192252A1
According to the present invention, ethanol can be efficiently obtained by microbial fermentation using a carbon source such as CO or CO2 as a substrate. A recombinant bacterium according to the present invention is derived from a thermophilic acetic acid-producing bacterium having a metabolic pathway for producing acetic acid through acetyl-CoA as an intermediate product from a carbon source. The recombinant bacterium has a deficiency in at least a portion of enzymes involved in the metabolic pathway through genetic engineering, and produces ethanol by expressing a foreign NADPH-dependent heat-resistant enzyme that catalyzes a reaction for producing acetaldehyde from acetyl-CoA and a heat-resistant enzyme that catalyzes a reaction for producing ethanol from acetaldehyde.
Resumen de: WO2025192839A1
The present invention relates to: a catalyst for biodiesel production; a method for producing the catalyst for biodiesel production; and a method for producing a biodiesel using the catalyst for biodiesel production. The purpose of the present invention is to provide a catalyst for biodiesel production, the catalyst comprising acid-treated melem and having excellent catalytic activity.
Resumen de: WO2025193297A1
Under current practices, agricultural or landscaping waste left in a field or forestry waste left in a forest will decay and release greenhouse gases. In addition, forestry waste also poses a high risk for fires. Accordingly, mechanisms are provided to allow efficient conversion under anaerobic conditions of biomass, such as agricultural or forestry waste, into biocarbon product, such as biochar, biocoal, inert carbon and/or activated carbon, using molten salts as a more efficient heat transfer medium than conventional heat. Specifically, biomass is converted into biocarbon product during a supertorrefaction process during which molten salts are pumped under anaerobic conditions from a molten salt reservoir to a batch process cooker that holds the biomass. The salts are washed from the resulting biocarbon product as needed.
Resumen de: WO2025190493A1
The present invention relates to a pyrolysis plant for batchwise production of biochar by pyrolysis of biomass. The invention further relates to a method of batchwise production of biochar by pyrolysis of biomass using the pyrolysis plant according to the invention. The pyrolysis plant serves for batchwise (discontinuous) production of biochar by pyrolysis of biomass, in particular of plant material, wherein the pyrolysis plant has: - at least one carrier insert for accommodating the biomass, - a drying device (2) for drying the biomass, - a pyrolysis device (3) for the pyrolysis of the biomass dried in the drying device (2) to obtain biochar with exclusion of oxygen or with a low level of oxygen supply, - a conveying device for supplying drying air to the drying device (2), - a heat exchanger (6) for heating the drying air conveyed by the conveying device by means of waste heat from the pyrolysis device (3).
Resumen de: CN223345428U
本实用新型公开了一种锅炉生物燃料供料装置，包括进料斗，所述进料斗内部设置有对进料斗内壁进行敲打的敲打组件，所述敲打组件包括固定安装于进料斗内部的安装外壳、转动连接于安装外壳内部的转动轴以及固定安装于进料斗外周的转动电机，所述转动轴贯通进料斗与转动电机转动连接，所述转动轴外周固设有斜向盘，所述转动轴外周固定安装有滑动底座一，且转动轴外周且与滑动底座一相对的一端固定安装有滑动底座二；本实用新型通过敲打组件能使进料斗的内壁持续发生震动，减小生物燃料在进料斗内壁的粘附性，同时也会将生物燃料发生的架桥或者堆积现象进行打散，减少进料斗在进行供料时发生堵塞或者粘附的现象，增加进料斗使用的顺畅性。
Nº publicación: CN223339646U 16/09/2025
Solicitante:
勐腊海发木材有限责任公司
Resumen de: CN223339646U
本申请公开了一种橡胶木均质炭化炉，属于炭化炉领域。主要包括工作组件，所述工作组件的内部设置有支撑组件，所述工作组件包括外框，所述外框上固定安装有内筒，所述支撑组件包括：两组所述放置腔均设置于内筒的内部，所述放置腔的内部放置有需要进行加工的橡胶木；移动轮，所述移动轮固定安装于放置腔的两端，本申请的一种橡胶木均质炭化炉通过内筒的内部设置有两组放置腔，使得橡胶木能够被集中收集放置，同时放置腔能够通过移动轮与支撑杆a之间的相互配合，使得两组放置腔方便在内筒的内部进行移动，从而便于放置腔在内筒的内部进行取出，进而解决了设备内部产生的温度以及烟雾会影响工作人员取出的问题，同时也提高了设备的使用安全。
BOPI
Sede Electrónica
