50 results about "Propionibacterium freudenreichii" patented technology

The invention provides a method for producing a propionic acid type mildewproof agent by utilizing a microbial fermentation method. The method comprises the following steps: carrying out solid fermentation or liquid fermentation on any one propionibacterium selected from Propionibacterium freudenreichii, a Propionibacterium shermanii or other dairy propionibacteria to; enabling propionic acid produced in the fermentation process to react with CaCO3 in a solid culture medium or a liquid culture medium to obtain a calcium propionate, or enabling the propionic acid to directly react with ammonia water fed in a liquid fermenting process to generate an ammonium propionate; and drying a solid base material to produce a solid propionic acid type mildewproof agent comprising the calcium propionate, or concentrating a fermentation liquor to produce a liquid propionic acid type mildewproof agent comprising the ammonium propionate. Because the used strain belongs to the diary propionibacteria and is publicly known as a safe strain, the propionate produced by the method is not required to be separated from propionic acid bacteria, and can be directly used for preventing feeds and grains from being mildewed. Compared with existing chemical methods, the propionic acid type mildewproof agent provided by the invention has advantages of wide raw material source, mild production condition, simplicity in producing process, low energy consumption, environmental friendliness and the like.

The invention belongs to the technical field of biological active bacterial preparations, particularly relates to a probiotic composition capable of obviously preventing and relieving the Alzheimer'sdisease, and further discloses a preparation prepared from the probiotic composition for preventing and relieving the Alzheimer's disease. The probiotic composition capable of obviously preventing andrelieving the Alzheimer's disease comprises lactobacillus plantarum Lp3a, bifidobacterium lactis Bla019, bifidobacterium longum BL5b, lactobacillus buchneri Lbu3, propionibacterium freudenreichii PrF01, propionibacterium shermanii, pediococcus acidilactici, clostridium butyricum and lactobacillus fermenti. The probiotic composition not only can obviously regulate and maintain intestinal microecology and control an in vivo toxin level but also can generate a certain quantity of short chain fatty acid, including acetic acid, propionic acid, butyric acid, lactic acid and the like to further relieve the related symptoms of the Alzheimer's disease. The probiotic composition has the efficacy of alleviating and relieving the symptoms of the Alzheimer's disease, also has the efficacy of soothingthe nerves and calming down, and also has a certain function for the depression, the anxiety disorder and the insomnia.

The survival of lactic acid bacterial strains such as probiotic bacteria contained in yogurt etc. is improved. A lactic acid bacterium survival improver including a propionic acid bacterium fermentation product to improve the survival of a lactic acid bacterium. The propionic acid bacterium is a bacterium belonging to the genus Propionibacterium. The bacterium belonging to the genus Propionibacterium is Propionibacterium freudenreichii.

Methods and compositions are hereby disclosed for reducing the numbers of E. coli O157:H7, Salmonella or other pathogens in an animal. The methods include administering to the animal a lactic acid producing bacterium at a relatively low dosage in combination with a lactate utilizing bacterium, followed by administration of the lactic acid producing bacterium at a relatively high dosage. The disclosed methods help achieve pre-harvest food safety and enhance feed performance while keeping the total cost relatively low. The preferred lactic acid producing bacterium is Lactobacillus acidophilus/animalis and the preferred lactate utilizing bacterium is Propionibacterium freudenreichii.

Four new genes, and the enzymes that they encode, are disclosed, which are present in Propionibacterium freudenreichii, and which are involved in at least five steps in the biosynthetic pathway of vitamin B₁₂. The four enzymes are: A: cobyrinic acid a, c-diamide synthase; B: a bifunctional enzyme, which is a cobinamide kinase and a cobinamide phosphate guanyl transferase; C: a cobalamin 5-phosphate synthase; and D: an adenosyl transferase. Genes encoding the four enzymes can be placed in Propionibacteria shuttle vectors and used to transform Propionibacteria hosts, in order to improve the production of vitamin B₁₂ or a precursor thereof on an industrial scale during fermentation.

The invention discloses humus for blueberry cultivation and solves the problem that in an existing blueberry cultivation process, acid increasing matter needs to be added regularly, so that operation is quite troublesome. The humus for blueberry cultivation comprises grass wood materials, sandy soil, feces and strains, wherein the weight ratio of the grass wood materials to the sandy soil to the feces is (10-30): 50: (10-20); the strains include acetobacter pasteurianus and propionibacterium freudenreichii, and the adding quantity of the strains is at least 1*10<8> cuf/kg. The humus has the advantages that the step of adding the acid matter is omitted, the cultivation and operation steps are simplified, and influences of acidity difference on growth of blueberries are reduced.

The invention provides a probiotic grapefruit passion fruit tea and a preparation method thereof. According to the technical scheme, a propionibacterium freudenreichii-pediococcus pentosaceus fermented product used for blending a beverage is prepared at first, viable bacteria are removed, and meanwhile, the main nutrition effect of probiotic metabolite is basically maintained. The amount of viablebacteria in fermentation liquor approaches to zero, so that the flavor of the beverage is not influenced by the microbial growth and metabolism after the fermentation liquor is mixed with the beverage. Besides, according to the invention, odor ingredients in the fermentation liquor are specifically treated, main acidic odor substances, such as lactic acid and propionic acid, are fully decomposed,and all the fermentation medium components are selected from natural plants, so that the propionibacterium freudenreichii-pediococcus pentosaceus fermented product used for blending the beverage almost has no negative influence on the flavor of the beverage. The probiotic grapefruit passion fruit tea prepared according to the invention keeps an excellent flavor, has a certain intestinal tract probiotic effect and has a bright popularizing prospect.

Disclosed is a polypeptide including or consisting of the amino acid sequence SEQ id n^o:1, for use in the treatment or prevention of an inflammatory disease. It further encompasses a nucleic acid sequence encoding a polypeptide, a vector including a nucleic acid and a host cell including a nucleic acid sequence and/or a vector, for use in the treatment or prevention of an inflammatory disease. Also disclosed is a pharmaceutical composition or a food composition including a polypeptide, a nucleic acid sequence, a vector or a host cell and a pharmaceutically acceptable carrier or a dairy product, for the treatment of inflammatory disease. Additionally, a method for the screening of bacteria having immunomodulatory properties is disclosed.

The invention discloses a method for promoting microbial denitrification. The microbial denitrification is promoted through the synergistic effect of paracoccus denitrificans and propionibacterium freundii. The method has the characteristics of shortening the denitrification process, increasing the denitrification rate, reducing the accumulation of intermediate products, avoiding secondary pollution and the like.

The invention discloses a deodorant special for a large-scale pig farm and application of the deodorant. The deodorant is prepared from a lactobacillus Raman culture, an ovoid bifidobacterium culture,a bifidobacterium longum culture, an intermediate streptococcus culture, a propionibacterium freudenreichii culture, an aspergillus itaconicus culture and a filamentous fungus fungicide; by adding the lactobacillus Raman culture, the ovoid bifidobacterium culture, the bifidobacterium longum culture, the intermediate streptococcus culture, the propionibacterium freudenreichii culture, the aspergillus aconitum culture and the filamentous fungus fungicide into a brown sugar water solution of which the concentration is 6 to 10 percent, the concentration of a lactobacillus Raman strain is up to 10<5> to 10<7> per ml, the concentration of an ovoid bifidobacterium strain is up to 10<6> to 10<8> per ml, the concentration of a bifidobacterium longum strain is up to 10<4> to 10<6> per ml, the concentration of an intermediate streptococcus strain is up to 10<7> to 10<9> per ml, the concentration of a propionibacterium freudenreichii strain is up to 10<4> to 10<8> per ml, the concentration of anaspergillus itaconicus strain is up to 10<4> to 10<7> per ml and the concentration of a filamentous fungus strain is up to 10<6> to 10<9> per ml. According to the deodorant disclosed by the invention,a live pig breeding house is treated through a spraying way, foul gaseous matters such as ammonia gas, hydrogen sulfide, methane, indole, volatile fatty acid, mercaptan can be fundamentally and quickly degraded, and adverse effects on health of live pigs cannot be generated.

The invention discloses a humus soil preparation method for blueberry cultivation. The problem that acid increase substances are required to be regularly added in the existing blueberry cultivation process and very troublesome operation is caused. The humus soil preparation method comprises the steps that step one, grass and wood materials, sand and excrement are evenly mixed with water, and the standard that no water seep from the mixed materials through hand holding is proper; the weight ratio of the grass and wood materials to the sand to the excrement is 10-30: 50:10-20; step two, acetobacter pasteurianus and propionibacterium freudenreichii are added to the mixed materials and are evenly stirred, wherein the total strain adding amount is at least 1 * 108 cuf/kg; step three, the mixed materials are covered with a film for fermentation, wherein the fermentation temperature is 25-28 DEG C, and the fermentation time is 8-10 days. The humus soil preparation method has the advantages of omitting the step of adding the acid increase substances, simplifying blueberry cultivation operating steps, reducing the blueberry growth influence caused by acidity difference and the like.

The invention discloses a preparation method of a pickled pitaya peel food and the pitaya peel pickled food prepared by the preparation method. The pickled pitaya peel food is prepared by the following step: pickling pitaya peels by using a bran pickle seasoning solution prepared from rice bran, water, lactobacillus plantarum, Propionibacterium freudenreichii, yeast and 10-hydroxyoctadecenoic acid, wherein a component gamma-dodecalactone generated by the bran pickle vegetable seasoning solution is mixed with bitter free amino acids and bitter peptides generated by proteolysis of vegetable proteins, and bitter taste of the bitter peptides is covered by aromatic components of the gamma-dodecalactone, so that the purpose of debitterizing is achieved.

The invention includes methods and compositions for treating an animal to inhibit the incidence and growth of E. coli O157:H7 and other pathogenic bacteria. The treatment method comprises administering a therapeutically effective amount of Lactobacillus acidophilus or one or a combination of a number of other probiotic bacteria to an animal. An alternative treatment method comprises administering a therapeutically effective amount of a lactic acid producing bacterium such as Lactobacillus acidophilus in combination with a lactate utilizing bacterium such as Propionibacterium freudenreichii.