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593 results about "Bacterosira" patented technology

Nucleic acid and amino acid sequences relating to Bacteroides fragilis for diagnostics and therapeutics

The invention provides isolated polypeptide and nucleic acid sequences derived from Bacteroides fragilis that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.
Owner:GENOME THERAPEUTICS

Application of bacteroides fragilis in preparation of composition for treating inflammatory bowel diseases

The invention relates to the technical field of application of bacteroides fragilis, and in particular relates to application of bacteroides fragilis in preparation of a composition for treating inflammatory bowel diseases. The experiments show that bacteroides fragilis is safe and nontoxic and strong in pharmacologic action, and has good treating effect of treating inflammatory bowel diseases, thereby indicating that the bacteroides fragilis has good edible and medicinal prospects. According to the invention, a novel use of bacteroides fragilis is explored and a novel application field is developed. Bacteroides fragilis as a probiotic can be used for preparing foods or medical compositions for treating inflammatory bowel diseases so as to provide health-cared foods or treating medicines suitable for human body to take.
Owner:广东知光生物科技有限公司

Eubacterium biforme preparation and use thereof

The invention relates to a eubacterium biforme preparation. The eubacterium biforme preparation is a microecological preparation adopting eubacterium biforme as a main active ingredient. The invention also relates to a use of the eubacterium biforme preparation in treatment on related diseases. The eubacterium biforme preparation can be prepared into a drug composition, a health care product, a drink, a veterinary drug and a feed additive.
Owner:QINGDAO EASTSEA PHARMA +1

Process for transfecting plants

A process of transfecting a plant, comprising spraying parts of said plant with an aqueous suspension containing cells of an Agrobacterium strain and at least one abrasive suspended in said suspension, said Agrobacterium strain comprising a DNA molecule comprising a nucleic acid construct containing a DNA sequence of interest to be transfected into the plant.
Owner:NOMAD BIOSCI

Bifidobacterium longum and application thereof

ActiveCN108220206AGood ability to tolerate simulated gastrointestinal fluidNo side effectsMilk preparationBacteriaHuman bodyBiotechnology
The invention discloses bifidobacterium longum and the application thereof and belongs to the technical field of biologics. The invention provides a bifidobacterium longum YS108R strain which has thecharacteristic of generating viscous exopolysaccharide, and has a remarkable improvement function on DSS (Dextran Sulfate Sodium) induced mouse colitis models. The strain has a relatively good capability of enduring simulated gastrointestinal fluids, is capable of remarkably reducing disease activity indexes of mice in the DSS induction period, and has an effective protection function on colon tissue. In addition, the bifidobacterium longum YS108R disclosed by the invention is separated from intestinal florae of healthy people, is free of toxic and / or side effects on human bodies, and has certain advantages when being compared with conventional medicine treatment. The strain can be used for preparing probiotic powder, fermented milk, and the like, and has wide market prospects.
Owner:无锡特殊食品与营养健康研究院有限公司

Bifidobacterium bifidum and application thereof

ActiveCN106834187AImprove toleranceIncrease the water content of fecesBacteriaDigestive systemSide effectFeces
The invention discloses bifidobacterium bifidum capable of remarkably relieving constipation and application thereof and belongs to the technical field of microorganisms. The bifidobacterium bifidum CGMCC NO.13632 can well tolerate simulative gastrointestinal fluid, can be well attached to colon cancer cells HT-29, and can remarkably increase the water content of excrement of constipation mice and shorten the first tarry stool time. On the aspect of increasing the small intestine driving rate, the bifidobacterium bifidum CGMCC NO.13632 is superior to cathartic phenolphthalein, a best effect is shown, secretion of gastrointestinal regulatory peptide relevant to constipation in serum is also adjusted while constipation pathological factors are remarkably improved, and the bifidobacterium bifidum does not have toxic and side effects of medicine for treating constipation, and is a first choice for preventing and treating constipation. The bifidobacterium bifidum CGMCC NO.13632 is used for preparing pharmaceutical compositions and fermented food for relieving constipation, and has very wide application prospects.
Owner:JIANGNAN UNIV

Enzyme and microbial inoculum for decomposing lignocellulose

InactiveCN101560488AImprove degradation rateLow costBacteriaMicroorganism based processesBacteroides xylanisolvensFlavobacterium aquatile
The invention discloses a microbial inoculum for decomposing lignocellulose and application thereof. The active component of the microbial inoculum consists of Alcaligenes faecalis, Bacteroides xylanisolvens, Clostridium xylanolyticum, Clostridium lentocellum, Flavobacterium aquatile, and Pseudomonas stutzeri. Experiments prove that the microbial inoculum has high degradation rate to the lignocellulose, and the degradation rate can reach between 60 and 70 percent. The microbial inoculum has low cost and simple preparation, breaks through the limitation that a purification bacterium and a clastic enzyme thereof cannot decompose the lignocellulose efficiently, provides a key technique for decomposing, saccharifying biomass containing cellulose and converting the biomass into an energy source, and has extensive application prospect in the field of decomposing the lignocellulose.
Owner:CHINA AGRI UNIV

Composition having bacteristatic and bactericidal activity against bacterial spores and vegetative cells and process for treating foods therewith

Antibacterial compositions effective against both gram positive and gram negative vegetative bacteria plus harmful gram positive sporeforming bacteria include propionibacterial metabolites in combination with two or more of the following: a lantibiotic; a lytic enzyme; and an organic acid or its salt. Methods of use are provided, as well as food products treated with these antibacterial compositions.
Owner:DUPONT NUTRITION BIOSCIENCES APS

Recombinant corynebacterium crenatum for over expression of N-acetylglutamate kinase and application thereof

The invention relates to a recombinant corynebacterium crenatum to enhance the expression of N-acetyl glutamic acid kinase and the application thereof, which belongs to the technical field of gene engineering. The classification and nomenclature of the recombinant corynebacterium crenatum to enhance the expression of N-acetyl glutamic acid kinase is corynebacterium crenatum SYPA / pJC1-tac-argB with an access number of CCTCC NO: M 208133; The application is as follows: using a key enzyme N-acetyl glutamic acid kinase from corynebacterium crenatum pathway arginine to construct a corynebacterium crenatum expression vector pJC1-tac-argB; introducing the corynebacterium crenatum expression vector pJC1-tac-argB into corynebacterium crenatum SYPA by electrotransformation to obtain the recombinant corynebacterium crenatum SYPA / pJC1-tac-argB; and excessively expressing N-acetyl glutamic acid kinase, which greatly enhances the utilization rate of a precursor glutamic acid and allows the metabolic flow to flow to the arginine synthesis pathway, weakens the synthesis of proline, achieves the purpose of improving the output of arginine and the output of arginine is increased by 23.4 percent than C. crenatum SYPA.
Owner:JIANGNAN UNIV

Preparation method of bacteroides fragilis capsular polysaccharide A

The invention relates to a preparation method of bacteroides fragilis capsular polysaccharide A. The preparation method comprises the following steps: preparing a bacterial suspension of bacteroides fragilis with the pH value of less than or equal to 5, heating and extracting, and collecting an extracting solution to obtain a crude sugar solution of capsular polysaccharide A. Compared with the prior art, the preparation method has the following beneficial effects that the inventor accidentally finds that the capsular polysaccharide A can be effectively promoted to fall off from the bacteroides fragilis thalli by heating and extracting the bacteroides fragilis bacterial suspension of which the pH value is less than or equal to 5, so that the capsular polysaccharide A is extracted. Compared with a traditional phenol / water method, the capsular polysaccharide A can be obtained under the condition that phenol is not used, and the toxicity is low. Moreover, by adopting the preparation method, the yield of the bacteroides fragilis capsular polysaccharide A is obviously improved.
Owner:GUANGZHOU ZHIYI PHARMA INC

Short bifidobacteria with functions of anti-gastrointestinal tract pathogen, oxidation resistance and blood pressure reduction

The invention discloses a novel Bifidobacterium breve with excellent probiotic function. The Bifidobacterium breve strains are obtained by screening the feces of the long-lived elders in Hetian, XinJiang, and the obtained strains have outstanding resistance to acid and bile acid salts, adhesion characteristics to intestinal tract epidermic cells, excellent antibacterial performance and good oxidization resistance; and the strains have an effect on reducing the blood pressure as well as the edible safety, therefore, the Bifidobacterium breve can be widely applied in the fields such as functional additives, dairy products, beverage, functional food, drug production, etc.
Owner:PRESIDENT ENTERPRISES (CHINA) INVESTMENT CO LTD +1

Cosmetic with fermented original rice milk, method for manufacturing cosmetic and application thereof

The invention discloses a cosmetic with fermented original rice milk, a method for manufacturing the cosmetic and application thereof. A process for preparing the fermented original rice milk includes steps of fermenting and cultivating initial systems with bifidobacterium bifidum, dry rice flour and water to obtain the fermented original rice milk. A bacterium is the bifidobacterium bifidum. As proved by experiments, the cosmetic, the method and the application have the advantages that the fermented original rice milk does not contain optional chemical components, accordingly, the cosmetic can be directly used as a finished product of facial masks or essence or toner and is natural as compared with other products on current markets, and optional negative effects on the skins of users can be prevented; small components can be acquired by the aid of the method as compared with common extraction methods, and accordingly the cosmetic can be easily sufficiently absorbed by the skins of the users.
Owner:SHANGHAI BIOTRULY BIOTECH CO LTD

Method for producing L-ornithine by microorganism fermentation

The invention provides a method for producing L-ornithine by microbial fermentation, namely, using Corynebacterium glutamate to obtain the strains of CS-189(cit<(-)>+SG<r>) by chemical treatment, and obtain the L-ornithine hydrochloride by fermentation, culture solution micro-filtration by a ceramic membrane, ion exchange resin and extraction by a hydrothermal crystallization method with decompression concentration. The strains used in the method are auxotrophy resistant to sulfaguanidine, which significantly enhances acid yield by fermentation. Meanwhile, aiming at the problem that the solubility of the L-ornithine hydrochloride in water is extremely difficult, the hydrothermal crystallization method is adopted to obtain better extraction rate under the condition that flammable and explosive alcohol is not used. The method simplifies processes and reduces extraction cost.
Owner:上海聚瑞生物技术有限公司

Novel fucosyltransferases and their applications

The present invention relates to nucleic acid and amino acid sequences from Akkermansia muciniphila and from Bacteroides fragilis, coding for / representing novel alpha-1,3-fucosyltransferases. The invention also provides uses and methods for using the alpha-1,3-fucosyltransferases to generate fucosylated products, such as oligosaccharides, (glyco)proteins, or (glyco)lipids, in particular of 3-fucosyllactose.
Owner:CHR HANSEN HMO GMBH

Colonic delivery of antimicrobial agents

Antimicrobial compositions for oral delivery, and administration to the colon, distal ileum, or other portion of the gastrointestinal tract other than the stomach, of bacteriophage, phage proteins, antimicrobial peptides, or antimicrobial aptamers, are disclosed. In one embodiment, the active agent is capable of lysing the bacterial cell wall. In another embodiment, the active agent is capable of interacting with a receptor or enzyme in the bacteria. In some embodiments, the active agents selectively act on one or more harmful bacteria, such as Clostridium difficile, and either do not act, or act to a lesser extent, on helpful bacteria, such as bifidobacteria. When the agents are not delivered directly to the colon, they active agents ultimately enter the colon and affect the bacteria that are present in the colon. The compositions can include beads of pectin in the form of a cationic salt enclosing the active agent, or other types of drug delivery systems designed for targeted delivery to the desired portion of the gastrointestinal tract.
Owner:ASSISTANCE PUBLIQUE HOPITAUX DE PARIS +2

Air filter type bacterial cellulose mask and production method thereof

The invention discloses an air filter type bacterial cellulose mask and a production method thereof. The mask is made of dried bacterial cellulose which is used as a mask frame material. The preparation method comprises the following steps: selecting acetobacter xylinum as a type strain, and culturing the acetobacter xylinum to obtain a bacterial cellulose membrane; and after soaking the membrane in acid liquor and alkali liquor, washing the soaked membrane till the rate of impurities is less than 0.5 percent, soaking the membrane in nano-silver solution, then drying the membrane by adopting a freeze drying mode, and obtaining the air filter type bacterial cellulose mask through compound preparation. The preparation process is simple, the filter performance of the mask can be effectively improved by using the bacterial cellulose as a material, and the bactericidal and antitoxic capacities of the mask are enhanced by soaking in the nano-silver solution; and the mask has the characteristics of low production cost, strong adsorption capacity, high bactericidal activity, long durative bactericidal time and the like, and can effectively reduce resource consumption and protect ecological environment.
Owner:HAINAN YEGUO FOODS

Application of bacteroides fragilis in preparing composition for preventing and treating acute radiation enteritis

The invention relates to the technical field of application of bacteroides fragilis, and in particular relates to application of bacteroides fragilis in preparing a composition for preventing and treating acute radiation enteritis. Experiments show that bacteroides fragilis is safe, nontoxic and strong in pharmacologic action and has a good preventing and treating effect to acute radiation enteritis, thereby indicating that the bacteroides fragilis has good edible and officinal prospects. The invention explores novel use of bacteroides fragilis and develops a novel application field. Bacteroides fragilis serving as probiotic can be used for preparing foods or medical compositions for preventing and treating acute radiation enteritis.
Owner:广东知光生物科技有限公司

Kelp-flavored food ingredient and preparation method thereof

The invention discloses a kelp-flavored food ingredient and a preparation method thereof. The preparation method comprises the following steps: firstly, degrading effective ingredients of kelp by composite enzymes; secondly, fermenting kelp enzymolysis products by corynebacterium glutamicum and pediococcus pentosaceus mixed bacteria; thirdly, further degrading the effective ingredients of the kelp and releasing secondary metabolites with functionality; fourthly, carrying drying or spray drying on fermented products to obtain a kelp food with rich kelp flavor, easily absorbed nutrients, antioxidant activity and antibacterial activity, so that the added value of a product is increased. According to the preparation method, a conventional deep processing process of the kelp is broken through, a composite enzymatic hydrolysis process is organically combined with a food grade microorganism fermentation process, the shortcomings of low utilization rate, unremarkable product flavor, non-effective utilization of the nutrients, poor functionality and the like in the conventional deep processing process of the kelp are overcome, the application range of the kelp product is remarkably expanded, and the economic value of the kelp product is remarkably increased.
Owner:TIANJIN INST OF IND BIOTECH CHINESE ACADEMY OF SCI

A strain of Acetobacter gluconicum and screen purification method thereof

InactiveCN101503663AGood yieldLess acid productionBacteriaMicrobiological testing/measurementDeterminative bacteriologyBiotechnology
The invention discloses a gluconoacetobacter sp. strain and a screening and purifying method. The screening and purifying method is characterized in that: defective fruits are used as raw materials; cycloheximide is used to suppress the growth of molds and other fungi, and plate enrichment cultivation, gradient dilution plate coating, primary screening, second screening and other methods are adopted for screening and purification to obtain the strain generating bacteria cellulose. According to the description in the ninth version of Bergey's Manual of Determinative Bacteriology, the strain is determined as a novel strain by the analysis of physiological and biochemical properties and 16 Sr DNA sequence. The invention strain obtained by the method has a wide selection range of carbon sources and nitrogen sources, a maximum yield of bacteria cellulose at a pH value of 6.5 and normal temperature, and a higher yield than that of common cellulose-generating bacteria, and has better implementation prospect in the industrial production of bacteria cellulose.
Owner:SICHUAN UNIV

Bifidobacterium animalis NX-6 and application thereof in preparation of lipid-lowering and weight-losing medicines

The invention discloses bifidobacterium animalis NX-6 and application thereof in preparation of lipid-lowering and weight-losing medicines, and belongs to the technical field of microorganisms. The preservation number of the bifidobacterium animalis NX-6 disclosed by the invention is CGMCC (China General Microbiological Culture Collection Center) No. 20114. The uninactivated and inactivated fermentation supernate, bacterial suspension and cell disrupted supernate of novel bifidobacterium animalis NX-6 show good effects of slowing down weight and body length increase, improving body mass index(BMI) and reducing fat area percentage on zebrafish, and have a potential weight losing effect; triglyceride (TG) and total cholesterol (TC) in a zebrafish hyperlipidemia model body can be obviously reduced, and a good hypolipidemic effect is shown. The novel bifidobacterium animalis NX-6 disclosed by the invention has a huge potential application prospect in the aspect of preparing medicines fortreating and / or preventing obesity and hyperlipidemia.
Owner:广东南芯医疗科技有限公司 +1

Bifidobacterium bifidum lyophilization composite protection agent and application method thereof

InactiveCN102358884AIncrease health functionSolve problems such as easy to absorb water and become dampMicroorganism based processesMicroorganism preservationSodium bicarbonateArginine
The invention provides a bifidobacterium bifidum lyophilization composite protection agent and application method thereof. A formula of the bifidobacterium bifidum lyophilization composite protection agent is composed of xylooligosaccharide of 3.0 to 5.0 g, synanthrin of 6.0 to 8.0 g, stachyose of 5.0 to 7.0 g, glycine 2.0 to 4.0 g, arginine of 2.0 to 4.0 g, sodium bicarbonate of 0.4 to 0.6 g andsodium ascorbate of 0.7 to1.2 g. the composite protection agent is utilized to lyophilize bifidobacterium bifidum, lyophilization survival reaches more than 85%, and viable count of bacterium powder is larger than 2.0 * 1011 cfu / g. Prebiotic of the xylooligosaccharide, synanthrin and stachyose is added in the composite protection agent so as to further improving a health protection function of the bacterium powder of the bifidobacterium bifidum. The composite protection agent resolves the important key technology problems in processes of develop high activity bacterium powder of the bifidobacterium bifidum. The prepared high activity bacterium powder can serve as addition agents and leavening agents to be used for developing functionality food and pharmaceutical preparation of the bifidobacterium bifidum.
Owner:SHAANXI RES INST OF AGRI PRODS PROCESSING TECH +1

Recombinant corynebacterium glutamicum and method for producing L-threonine

ActiveCN113322218AThe effect of acid production is remarkableBacteriaTransferasesThreonineBacterosira
The invention relates to the technical field of bioengineering, in particular to recombinant corynebacterium glutamicum and a method for producing L-threonine. The corynebacterium glutamicum for producing threonine is constructed by combining and transforming (or enhancing) a hom gene, a lysC gene, a thrC gene and the like which are resistant to feedback inhibition, and (or) a weakening (or knockout) pck gene and (or) a weakening (or knockout) pyk gene, and the acid production effect is very remarkable and far exceeds the highest level which is reported at present and reaches 20g / l.
Owner:MEIHUA BIOTECH LANGFANG CO LTD

Recombinant corynebacterium glutamicum for producing gamma-polyglutamic acid as well as construction method and use of recombinant corynebacterium glutamicum

The invention discloses recombinant corynebacterium glutamicum for producing gamma-polyglutamic acid as well as a construction method and a use of the recombinant corynebacterium glutamicum. The recombinant corynebacterium glutamicum is characterized by being an engineering bacteria which is obtained by transferring a recombinant expression plasmid containing a gamma-PGA (Poly Glutamic Acid) synthetase composite gene pgsBCA to an original strain wild C.glutamicum ATCC13869. The recombinant corynebacterium glutamicum disclosed by the invention contains the gamma-PGA synthetase composite gene pgsBCA, so that much gamma-PGA can be synthesized under biotin limit or under the fermentation condition of adding Tween40, therefore, the glutamic acid adding cost in the gamma-PGA production process is reduced, and a foundation is laid for the innovation in realizing the one-step production of gamma-PGA better.
Owner:NANTONG UNIVERSITY

Bifidobacteria as probiotic foundation species of gut microbiota

This invention relates to novel probiotic Bifidobacteria strains, particularly, a B. pseudocatenulatum strain, and its use as probiotic, and food products, feed products, dietary supplements and pharmaceutical formulations containing them. The bacteria are suitable for the treatment of obesity, diabetes (particularly Type 2 diabetes), and related conditions.
Owner:PERFECT CHINA

Carbonyl reductase, gene thereof, and application thereof in preparing Duloxetine chiral intermediates

The invention discloses a carbonyl reductase (i)Ch ( / i) KRED15 derived from Chryseobacterium ((i) Chryseobacterium ( / i) (i) ( / i) sp. CA49), and a coding gene thereof; the invention also discloses application of the carbonyl reductase as a biocatalyst in preparing a Duloxetine chiral intermediate ((i) S ( / i))-N-methyl-3-hydroxy-3-(2-thienyl) propanamide. The enantiomer excess of products is greater than 99.9%. 20 g / L of substrate can be catalyzed by Ch( / i) KRED15 crude enzyme (2U / mL), and the conversion rate of over 99% can be obtained in 2 hours; a coenzyme circulation system is simple, and has large industrial application prospect.
Owner:CHENGDU INST OF BIOLOGY CHINESE ACAD OF S
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