Toray Industries, Inc.

Masashi Higasa

Katsushige Yamada

Atsushi Minamino

Kentaro Ishii

Yuka Asahi

Hiroyuki Kurihara

Shingo Hiramatsu

Jumpei Kishimoto

Kenji Sawai

Hideki Sawai

Takashi Mimitsuka

Shinichi Minegishi

Ken Morita

Joonsik Park

Asako Sogame

A method of producing a sugar liquid derived from a cellulose-containing biomass includes (a) saccharifying a pretreated product having alignin content of not more than 8.5% obtained by pretreatment of a cellulose-containing biomass, to obtain a saccharified liquid; (b) filtering the saccharified liquid obtained in Step (a) through a microfiltration membrane to allow formation of a cake on a membrane surface in a feed side while obtaining a sugar liquid from a permeate side; and (c) collecting the cake formed on the membrane surface in Step (b) by peeling from the membrane.

Method of producing sugar solution

A method of producing a sugar liquid includes: (A) reacting mannanase with a liquid component obtained by hydrolysis treatment of woody biomass to obtain a saccharified liquid; and (B) filtering the saccharified liquid in Step (A) through a microfiltration membrane and/or ultrafiltration membrane to collect a sugar liquid from a permeate side.

Method of producing sugar liquid

A method of producing a sugar liquid includes a step of filtering a saccharified liquid derived from cellulose-containing biomass, through a nanofiltration membrane and/or reverse osmosis membrane; and a two-step washing step of washing the nanofiltration membrane and/or reverse osmosis membrane after the filtration, with an acid washing liquid and then with an alkali washing liquid; is provided. The method of producing a sugar liquid in which a cellulose-derived sugar liquid is processed through a nanofiltration membrane and/or reverse osmosis membrane is/are effectively washed in a contaminated separation membrane(s).

A method of producing a chemical product includes cultivating microorganisms or culture cells in a fermentation tank; transferring a culture liquid from the fermentation tank to a membrane separation tank to filter the culture liquid through a separation membrane; and collecting a fermentation product from a filtration liquid as the chemical product while refluxing an unfiltered culture liquid that has not been filtered to be joined to the culture liquid on an upstream side of the membrane separation tank, wherein one portion of the culture liquid to be transferred from the fermentation tank is allowed to bypass the membrane separation tank depending on a pressure at a culture liquid flow-in side of the membrane separation tank.

Method of producing a chemical product

A water-soluble nanoparticle complex has a plurality of accumulated nanoparticles and has excellent uniformity and stability by forming a complex of nanoparticles using a water-soluble polymer and which allows for use of nanoparticles in biochemical applications.

Water-soluble polymer and water-soluble nanoparticle composite

A liquid-feeding chip for feeding a liquid utilizing the action of centrifugal force and gravity by rotating the chip around an axis of rotation, includes a first storage tank (-) into which the liquid can be introduced when rotation of the chip is stopped, and two or more liquid-feeding units arranged in a plurality of levels adjacent to each other, each liquid-feeding unit (U-U-U-) being composed of a first holding tank (---), a second holding tank (---) positioned in the direction of gravity with respect to the first holding tank, and a channel B (B-B-B-) which extends from the first holding tank in the direction of gravity and which connects the first holding tank and the second holding tank, the first holding tank at a first level being connected with a channel A (A-) which extends from the first storage tank toward an outer circumferential side. In the liquid-feeding chip, the adjacent liquid-feeding units are connected by a channel C (C-C-) which extends from the second holding tank of the liquid-feeding unit at an upper level to an outer circumferential side during rotation, and which is in communication with the first holding tank of the liquid-feeding unit at a lower level.

Liquid-feeding chip and analysis method

A separation chip for separating an insoluble component from a suspension using centrifugal force by rotation, includes a suspension holding tank, a separation liquid holding tank, and an insoluble component holding tank arranged in order from an inner circumferential side during rotation, wherein the suspension holding tank and the insoluble component holding tank are connected to each other, the insoluble component holding tank and the separation liquid holding tank are connected to each other by a narrow portion, and in the insoluble component holding tank, a connecting portion with the suspension holding tank is positioned further toward an outer circumferential side than the narrow portion.

Growing community of inventors

Kamakura, Japan

Masashi Higasa