The present invention relates to an improved diatomaceous earth composition containing salt water. The diatomaceous earth composition according to the present invention comprises an agglomerated mixture of calcined diatomaceous earth particles, water and at least one inorganic salt, wherein the mass ratio of the calcined diatomaceous earth particles and water is in the range of 1:1.0 to 1:2.0, and wherein the content of the at least one inorganic salt is equal to or more than 0.25 parts by mass based on 100 parts by mass of water. In a further aspect, the present invention relates to a method for producing the diatomaceous earth composition according to the present invention. In another aspect, the present invention relates to the use of the diatomaceous earth composition according to the present invention as an agent for precoat filtration or dynamic body feed filtration in biopharmaceutical applications.

Provided is a new method for more efficiently generating emulsion particles each containing one fine particle.

The present technology provides a method of collecting fine particles, in which in a fine particle sorting mechanism having a channel structure including a main channel through which the fine particles flow, a collection channel into which particles to be collected are collected from among the fine particles, a connection channel that connects the main channel and the collection channel, and a liquid supply channel connected to the connection channel so as to supply a liquid, the method includes: a flow step of causing a first liquid containing the fine particles to flow through the main channel; a determination step of determining whether or not the fine particles flowing through the main channel are the particles to be collected; and a collection step of collecting the particles to be collected into the collection channel, and, in the collection step, the particles to be collected are collected into a second liquid that is immiscible with the first liquid in the collection channel while being contained in the first liquid.

Provided is a new method for more efficiently generating emulsion particles each containing one fine particle.

The present technology provides a method of collecting fine particles, in which in a fine particle sorting mechanism having a channel structure including a main channel through which the fine particles flow, a collection channel into which particles to be collected are collected from among the fine particles, a connection channel that connects the main channel and the collection channel, and a liquid supply channel connected to the connection channel so as to supply a liquid, the method includes: a flow step of causing a first liquid containing the fine particles to flow through the main channel; a determination step of determining whether or not the fine particles flowing through the main channel are the particles to be collected; and a collection step of collecting the particles to be collected into the collection channel, and, in the collection step, the particles to be collected are collected into a second liquid that is immiscible with the first liquid in the collection channel while being contained in the first liquid.

Provided is a channel device that is capable of increasing the concentration of fine particles in a liquid only by use of fluid-dynamic flows without relying on electrostatic interactions. A channel device (1) in accordance with an embodiment of the present invention includes: a main channel (11) configured to allow a liquid containing fine particles to flow therethrough; a chamber (15) that is provided at an end of the main channel (11) and that is configured to store target fine particles which have increased in concentration; and a side channel (12) that is connected to a side face of the main channel (11) and that is configured to allow unwanted liquid to drain therethrough, wherein at least one of a height and a width of the side channel (12) is smaller than a particle size of the fine particles.

Cell separation systems, and methods for separating cells from microcarriers, and harvesting the separated cells, are provided, wherein the system comprises a cell separation device, a cell settling device, and a cell screening device.

Cell separation systems, and methods for separating cells from microcarriers, and harvesting the separated cells, are provided, wherein the system comprises a cell separation device, a cell settling device, and a cell screening device.

Provided is a method which enables efficient separation of a component such as microorganisms from an organic substance-containing liquid obtained by microbial fermentation. Disclosed is a method for producing an organic substance comprising a microbial fermentation step of obtaining an organic substance-containing liquid and a separation step of heating the organic substance-containing liquid and separating into a liquid or solid component containing microorganisms and a gaseous component containing the organic substance.

Provided is a method which enables efficient separation of a component such as microorganisms from an organic substance-containing liquid obtained by microbial fermentation. Disclosed is a method for producing an organic substance comprising a microbial fermentation step of obtaining an organic substance-containing liquid and a separation step of heating the organic substance-containing liquid and separating into a liquid or solid component containing microorganisms and a gaseous component containing the organic substance.

A method of autotrophic cultivation of algae includes cultivating algae in the presence of cultivation media and at least one growth nutrient to produce an algal biomass; and harvesting the algal biomass by separating the algal biomass from the cultivation media and the at least one growth nutrient. The algal biomass comprises at least 35% fatty acid lipid content and at least 30% protein content on an ash-free dry weight basis

A method of autotrophic cultivation of algae includes cultivating algae in the presence of cultivation media and at least one growth nutrient to produce an algal biomass; and harvesting the algal biomass by separating the algal biomass from the cultivation media and the at least one growth nutrient. The algal biomass comprises at least 35% fatty acid lipid content and at least 30% protein content on an ash-free dry weight basis