Disclosed herein are a microorganism growth inhibitor including allulose-containing saccharides and a fermented alcoholic beverage comprising the same.

Disclosed herein are a microorganism growth inhibitor including allulose-containing saccharides and a fermented alcoholic beverage comprising the same.

A liquid sporulation method is described. A first liquid culture is prepared by adding bacterial cells to a sporulation broth, wherein an optical density (OD.sub.600) of the first liquid culture is in a range of 0.001 to 0.01. The first liquid culture is incubated and an optical density (OD.sub.600) thereof is increased to be in a range of 0.2 to 2.0. Second liquid culture is prepared by adding the incubated first liquid culture to a predetermined amount of additional sporulation broth, wherein an optical density (OD.sub.600) of the second liquid culture is in the range of 0.001 to 0.1, and a ratio of a volume of the second liquid culture to a volume of the first liquid culture is in a range of 10:1 to 150:1. The second liquid culture is incubated so an optical density (OD.sub.600) thereof is increased to be in a range of 1.0 to 4.0.

Provided is Lactobacillus paracasei TCI727, deposited in the Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH (DSMZ) with a deposit number of DSM 33756. A method for improving calcium absorption of a subject in need thereof by using the Lactobacillus paracasei TCI727 or metabolites thereof is also provided. The method includes administering to the subject an effective amount of a composition comprising the Lactobacillus paracasei TCI727 or the metabolites thereof.

This disclosure provides, inter alia, systems and methods for testing products for ammonia oxidizing bacteria, quality control, and providing products with ammonia oxidizing bacteria. The systems and methods herein may be used, inter alia, to treat diseases associated with low nitrite levels, skin diseases, and diseases caused by pathogenic bacteria.

This disclosure provides, inter alia, systems and methods for testing products for ammonia oxidizing bacteria, quality control, and providing products with ammonia oxidizing bacteria. The systems and methods herein may be used, inter alia, to treat diseases associated with low nitrite levels, skin diseases, and diseases caused by pathogenic bacteria.

A nanostructure for isolating or concentrating extracellular vesicles or a pathogen, includes a transferrin family protein linked on magnetic nanoparticles. The nanostructure includes a transferrin family protein, and thus has selectivity for a pathogen or extracellular vesicles capable of binding to the transferrin family protein, and the synthesized nanostructure is positively (+) charged. The nanostructure includes magnetic nanoparticles, a target material is easily and simply isolated from other materials by magnetism when a magnetic field is applied.

A nanostructure for isolating or concentrating extracellular vesicles or a pathogen, includes a transferrin family protein linked on magnetic nanoparticles. The nanostructure includes a transferrin family protein, and thus has selectivity for a pathogen or extracellular vesicles capable of binding to the transferrin family protein, and the synthesized nanostructure is positively (+) charged. The nanostructure includes magnetic nanoparticles, a target material is easily and simply isolated from other materials by magnetism when a magnetic field is applied.

The present invention provides a method of increasing nisin production in nisin-producing Lactococcus lactis by inactivating the phage infection protein Pip. The invention also provides nisin-producing Lactococcus lactis in which the phage infection protein is inactivated. The nisin-producing Lactococcus lactis can be used in starter culture for manufacturing food products or other industrial applications.

The invention concerns methods for mapping microbial niches and their uses.