Abstract: An extraction method is aimed at extracting an object component by transferring the object component from a first liquid containing a microorganism and the object component to a second liquid to which the object component can be transferred and that is capable of causing phase separation from the first liquid, with use of a flow channel including a merging part, a flow part, and an outlet part. The extraction method includes a step of supplying the first liquid to the merging part, a step of supplying the second liquid to the merging part, a step of passing the first liquid and the second liquid supplied to the merging part, through the flow part, in a state where a phase of the first liquid and a phase of the second liquid are separated from each other, a step of discharging the first liquid and the second liquid passed through the flow part, from the outlet part, and a step of collecting the first liquid and the second liquid discharged from the outlet part, into a collector.

Abstract: Methods include contacting a fermented gas including isoprene with a porous adsorbent and desorbing isoprene adsorbed on the porous adsorbent. The fermented gas may be obtained by culturing a microorganism having an ability to produce isoprene.

Abstract: Methods include contacting a fermented gas including isoprenoid compound with a porous adsorbent and desorbing isoprenoid compound adsorbed on the porous adsorbent. The fermented gas may be obtained by culturing a microorganism having an ability to produce isoprenoid compound.

Abstract: A method for producing polyisoprene comprising: polymerizing isoprene by using an isoprene-containing composition containing isoprene and an oxygen-containing neutral compound, and a polymerization catalyst composition containing a rare earth element compound and an organometallic compound, wherein: —a compounding amount of the organometallic compound is 0.6 to 3.0 parts by mass per 100 parts by mass of the isoprene-containing composition.

Abstract: Methods include contacting a fermented gas including isoprene with a porous adsorbent and desorbing isoprene adsorbed on the porous adsorbent. The fermented gas may be obtained by culturing a microorganism having an ability to produce isoprene.

Abstract: Methods include contacting a fermented gas including isoprenoid compound with a porous adsorbent and desorbing isoprenoid compound adsorbed on the porous adsorbent. The fermented gas may be obtained by culturing a microorganism having an ability to produce isoprenoid compound.

Abstract: A private branch exchange system having connected thereto a telephone line of a public telephone network, a plurality of extensions, and at least one attendant console. The private branch exchange system has an attendant console control circuit corresponding to each of the attendant consoles in a main frame of the private branch exchange system. A speech signal from a speech path exchange circuit and control signals are multiplexed at the attendant console control circuit to be sent through a transmission line to the corresponding attendant console, and a speech signal and control signals from the attendant console are multiplexed at the attendant console to be sent through a transmission line to the corresponding attendant console control circuit.