Methods and systems are provided for generating and utilizing a bacterial composition that comprises at least one genetically engineered bacterial strain that fixes atmospheric nitrogen in an agricultural system that has been fertilized with more than 20 lbs of Nitrogen per acre.

Provide are beneficial bacteria that can be beneficially applied across a wide range of age groups and a composition containing the same. Bifidobacterium longum subspecies longum NITE BP-02568 and/or Bifidobacterium longum subspecies longum NITE BP-02569; and Bifidobacterium longum subspecies longum, having utilization ability for 2′-fucosyllactose are also provided. More preferably, bacteria having utilization ability for carbohydrates arabinoxylan, arabinan, and pectic galactan; and a composition containing the bacteria are also provided. More preferably, a composition containing 2′-fucosyllactose are also provided. More preferably, a composition containing at least one carbohydrate selected from the group consisting of arabinoxylan, arabinan, pectic galactan, and oligosaccharides derived therefrom or containing at least a carbohydrate derived from a gramineous plant or a carbohydrate derived from a solanaceous plant are also provided.

The invention belongs to the field of cosmetic biotechnology, and specifically relates to an Enterobacter that degrades hyaluronic acid and a cultivation method and application thereof. The Enterobacter sp. CGJ001 of the present invention was deposited in the China General Microbiological Culture Collection Center on Oct. 10, 2019, and the preservation number is CGMCC NO. 18661. The Enterobacter strain can efficiently produce hyaluronidase, and can be used in the process of preparing low molecular hyaluronic acid and oligomeric hyaluronic acid from high molecular hyaluronic acid. The enzyme has high specificity towards hyaluronic acid, excellent thermal stability and pH stability, and is suitable for large-scale industrial application. Thus, it can replace the traditional hyaluronidase extracted from expensive animal tissues. There should be broad application prospects in the fields of medicine and cosmetics.

The present invention concerns a process for isolating an archaeon of the order of commensal clade Methanomassiliicoccales, the use of a culture and/or isolation medium comprising a sterile extract of a bacterial culture of a bacterium of genus Eggerthella, for the isolation and/or culture of an archaeon of the order of commensal clade Methanomassiliicoccales, and a pure, isolated archaeon Methanomethylophilus alvus Mx-05. It also concerns a culture method of an archaeon of the order of commensal clade Methanomassiliicoccales.

Surfactants based on a newly discovered class of compounds include a hydrophobic lipid oligomer covalently linked to a peptide or peptide-like chain and a carbohydrate moiety, and a serine-leucinol dipeptide linked to the lipid oligomer. Such surfactants can be used to create an oil-in-water or water-in-oil emulsion by mixing together a polar component; a non-polar component; and the surfactant. Biosurfactants of the newly discovered class can be made by isolating and culturing a microorganism which produces the biosurfactant, and then isolating the biosurfactant from the culture. A microorganism can be engineered to produce biosurfactant of this newly discovered class by expressing a set of heterologous genes involved in the biosynthesis of the biosurfactant in the microorganism.

A biochemical viscosity reducer for heavy oil and a preparation method thereof. The viscosity reducer includes: Brevibacillus borstelensis-fermented mixed lipopeptide solution: 30 to 60 parts; compound biological enzyme: 15 to 30 parts; plant-based nonionic surfactant: 10 to 20 parts; antibacterial agent: 1 to 5 parts; stabilizer: 1 to 5 parts; and alcohol solvent: 10 to 20 parts; where, the above components are measured by mass. The preparation method includes: step 1: adding 30 to 60 parts of a Brevibacillus borstelensis-fermented mixed lipopeptide solution, 15 to 30 parts of a compound biological enzyme, 10 to 20 parts of a plant-based nonionic surfactant, and 1 to 5 parts of a stabilizer to a reactor; and step 2: adding 1 to 5 parts of an antibacterial agent and an alcohol solvent to the reactor, and stirring a resulting mixture for 60 min to 120 min.

The present disclosure provides isolated Paenibacillus strains useful for fixing atmospheric nitrogen and enhancing crop yield, as well as inoculant compositions comprising one or more of the isolated strains, seeds that have been treated with one or more of the isolated strains, and methods of using the isolated strains to improve nitrogen content, crop yield, etc.

Disclosed is a mutant strain having the ability to produce polyhydroxybutyrate. The novel strain has a significantly high growth rate and an improved ability to produce PHB compared to existing PHB-producing cyanobacterial strains. Therefore, the novel strain is suitable for use in the production of PHB and the development of various products using PHB. In addition, the novel strain is useful as a photosynthetic strain for developing a PHB production process using industrial flue gas due to its ability to produce PHB from only CO.sub.2 without any additional organic carbon source. Also disclosed is a method for producing polyhydroxybutyrate using the mutant strain.

Whole cell based biostimulant compositions and methods for improving agricultural productivity the compositions including: a microbial consortium having gammaproteobacterial methanotroph. As a result of these methanotrophs, the biostimulant composition enables plant performance improvement, utilization of methane, and facilitates improved nitrogen fixation in plants. The composition also helps in reducing the need of external chemical fertilizers for plant growth, development, performance and/or survival.

Aspects of the present disclosure relate generally to compositions of bacterial isolates with probiotic activity. Compositions and methods described herein may confer health benefits to subjects in need thereof. This may be accomplished by administering to the subject an effective amount of the microorganism isolates and may include also administering an effective amount of a prebiotic, stabilizer, antibacterial agent, antifungal agent, and/or media component. Probiotic compositions may also be in combination with a suitable delivery system, such as a food product or a beverage, a food or beverage compositions, a food or beverage supplement or adjuvant.