15 results about "Sorangium cellulosum" patented technology

Composites of metal-organic framework particles and bacterial cellulose, methods of making the composites, and methods of using the composites in the hydrolysis of organic compounds are provided. The composites, which are aerogels comprising metal-organic framework particles embedded in a bacterial cellulose nanofiber network, are fabricated using a microbial synthesis strategy in which bacterial cellulose nanofiber is biosynthesized using a cellulose-producing bacteria in a fermentation medium in which metal-organic framework particles are dispersed.

The invention discloses low-temperature salt-tolerant and alkali-tolerant streptomyces microflavus and application thereof, relates to the technical field of microorganisms, and is characterized in that the preservation number of the streptomyces microflavus is CCTCC (China Center for Type Culture Collection) M2023664. The streptomyces microflavus provided by the invention can well grow at the temperature of 10-30 DEG C. In a Congo red decoloration test, the ratio of the diameter (D) of a transparent circle to the diameter (d) of a bacterial colony is 3.6. The strain is applied to degradation of cellulose, has the advantages of degradation of cellulose at low temperature, high cellulase activity, salt resistance, alkali resistance and the like, and can be particularly used for cellulose degradation strain resources in low-temperature saline-alkali areas.

Porous cellulose particles contain a cellulose, a cellulose derivative, or a mixture thereof as a main component, in which the porous cellulose particles have open cells extending from a particle surface to a particle interior, and have a BET specific surface area of 1.7 m2 / g or more and 24.0 m2 / g or less.

Recombinant Sorangium cellulosum for producing de-epoxidized epothilone B by fermentation, insertional inactivation of an epoK gene in an epothilone biosynthetic gene cluster in the recombinant bacteria, and a method for producing de-epoxidized epothilone B using the recombinant bacteria.

Porous cellulose particles contain a cellulose, a cellulose derivative, or a mixture thereof as a main component, in which the porous cellulose particles have open cells extending from a particle surface to a particle interior, and have a BET specific surface area of 1.7 m2 / g or more and 24.0 m2 / g or less.

The present disclosure relates to a biodegradable geotextile structure for soil biostimulation comprising a woven fabric structure of hydrophilic filament yarns of a cellulose fiber selected from the list consisting of: alpha cellulose, beta cellulose, gamma cellulose or mixtures thereof; at least a plant-based biopesticide selected from the list consisting of: Nicotine, Rotenone, Pyrethrins I, Pyrethrins II, Eugenol, Citronella oil, and mixtures thereof; at least a microalgae selected from the list consisting of: Chlorella spp., Scenedesmus spp, Dunaliella spp, Spirulina spp., and mixtures thereof. Furthermore, the present disclosure relates to a method to obtain said biodegradable geotextile structure.

According to an example aspect of the present disclosure, there is provided a humidity regulator (144) for an electrochemical system (100). The humidity regulator has a composite membrane (3), which features a layered structure that has attached together a porous base layer (1), and a functional layer (2). The functional layer contains cellulose, on at least one surface of the porous base layer (1).

A cost-effective biorefining process has been developed to produce multiple products, including mono-saccharomate syrup, poly-phenolic precursor, and cellulosic derivatives such as (R)-cellulose, (µ)-cellulose and (n)-cellulose, from surplus crop residues. This process involves several steps, including saccharomate recovery, solid-liquid separation, poly-phenol extraction, blanching, density separation, depolymerization, and drying. Furthermore, the by-products generated at each stage of the biorefining process can be utilized to increase the value of the overall process by incorporating a photosynthetic resource recovery strategy. The methods used for extraction and treatment vary depending on the composition and type of the feedstock biomass.

According to an example aspect of the present disclosure, there is provided a humidity regulator (144) for an electrochemical system (100). The humidity regulator has a composite membrane (3), which features a layered structure that has attached together a porous base layer (1), and a functional layer (2). The functional layer contains cellulose, on at least one surface of the porous base layer (1).

The invention belongs to the technical field of biological genetic engineering and molecular biology, and discloses a preparation method of a sorangium cellulosum electrotransformation sensory cell and an electrotransformation method using the sorangium cellulosum electrotransformation sensory cell. The sorangium cellulosum is cultured in a liquid culture medium to an early index stage, competent cells are prepared at normal temperature, and the sorangium cellulosum is electrically transformed under specific voltage and electric shock times. The method provided by the invention is simple to operate, the electrotransformation efficiency can reach up to 1000 cfu / g DNA, and the method has wide applicability.

The invention relates to the field of agricultural science and technology, in particular to straw biochar as well as a preparation method and application thereof. The preparation method of the straw biochar comprises the following steps: crushing corn straws for the first time, bagging the crushed corn straws, placing the bagged corn straws in a pit, performing fermentation treatment on the upper-layer covering soil for 1-3 months, washing, drying at the temperature of 80-85 DEG C, and performing secondary crushing to obtain pretreated straws; carbonizing the pretreated straw to obtain a carbonized sample; and activating the carbonized sample to obtain the straw biochar. Cellulose, cellulose and hemicellulose components in the pretreated straw are remarkably reduced compared with those in original corn straw; the BET specific surface area and the total pore volume of the straw biochar prepared by the method are obviously higher than those of straw biochar prepared from original straw through carbonization and mixed alkali activation, and it is indicated that soil microbial flora pretreatment is a method capable of effectively improving the performance of the corn straw biochar.

The invention relates to an environment-friendly anti-fouling self-cleaning sand-containing multicolor paint, which is composed of the following components: a color point base paint, a continuous phase and a granulation liquid in a mass ratio of (6-6.5): (2-3): (2-3), wherein the color point base paint comprises deionized water, a bactericide, a dispersing agent, nano silicon dioxide, a defoaming agent, cellulose A, cellulose B, a coalescing agent, an anti-freezing agent, a pH value regulator, a photocatalytic material, a water-based resin base material, a cross-linking agent, modified protective glue and color sand; the continuous phase comprises deionized water, a preservative, an antifreeze agent, bentonite, a hydrophobic modifier, a cross-linking agent, a defoaming agent, a thickening agent and a coalescing agent; the environment-friendly anti-pollution self-cleaning sand-containing multicolor paint has excellent hydrophobic performance, can effectively prevent pollutant adhesion and reduce the cleaning and maintenance cost, and by adding a doped titanium dioxide photocatalytic material, the environment-friendly anti-pollution self-cleaning sand-containing multicolor paint has the advantages that the environment-friendly anti-pollution self-cleaning sand-containing multicolor paint has excellent anti-pollution performance, and the environment-friendly anti-pollution self-cleaning sand-containing multicolor paint has excellent anti-pollution performance. The coating still has a good self-cleaning function under a weak light condition.

The invention discloses bio-based collagen cellulose aerogel and a preparation method thereof, relates to the technical field of degradable and renewable bio-based aerogel, and aims to solve the problem of pore collapse after nano-cellulose aerogel is dissolved and regenerated. The bio-based collagen cellulose aerogel is prepared from bio-based collagen and cellulose connected with the bio-based collagen. The cellulose is connected with carboxyl, and the size of the cellulose is less than or equal to 100nn.

The present application relates to the field of agricultural science and technology, and particularly relates to a straw biochar, a preparation method and application. The preparation method of the straw biochar comprises the following steps: firstly crushing corn straw, bagging, placing in a pit, covering with soil on the upper layer, and performing fermentation treatment for 1-3 months, washing, drying at 80-85 DEG C, secondly crushing, and obtaining pretreated straw; performing carbonization treatment on the pretreated straw, obtaining a carbonized sample; performing activation treatment on the carbonized sample, and obtaining the straw biochar. The cellulose, cellulose, and hemicellulose components in the pretreated straw are significantly reduced compared with the original corn straw; and the BET specific surface area and total pore volume of the straw biochar prepared by the present application are significantly higher than those of the straw biochar prepared by carbonization and mixed alkali activation of the original straw, indicating that the soil microbial flora pretreatment is a method capable of effectively improving the performance of the corn straw biochar.

The invention belongs to the technical field of microorganisms, and particularly relates to a high-yield cellulase strain and application thereof. The preservation number of the high-yield cellulase strain is CCTCC NO: M 2025895, the high-yield cellulase strain is used for producing cellulase, cellulose, cellulose derivatives and substances containing the cellulose or the cellulose derivatives can be decomposed into oligosaccharide, or monosaccharide, or ketone, or furan, or cellulosic ethanol, or cellulosic acid and other substances, the decomposition efficiency is high, and the high-yield cellulase strain is especially suitable for low-temperature and pressurized environments. And a novel high-activity biological method is provided for degradation of cellulose and / or cellulose derivatives.