Ajinomoto Co., Ltd.

Hisao Itoh

Kazuhiko Mori

Atsushi Okada

Takayuki Koda

Naohiro Kadota

Yoshitaka Teratani

Masao Ikeda

Takeru Satou

Takaaki Arashida

Yasuko Yamada

Katsumi Toide

A foam detecting sensor ( ) and an ultrasonic oscillation horn ( ) are mounted on a vertical pipeline between a culture tank ( ) and a liquid-vapor separating device ( ). When overflowed foams are subjected to ultrasonic irradiation, they burst and lose volume. The burst foams have high apparent density as compared to the foams before irradiation. Thus, the concurrent use of ultrasonic oscillation devices ( ) and the liquid-vapor separating device ( ), such as cyclone, leads to an enhanced liquid-vapor separation efficiency and higher productivity by fermentation.

Culture device for aerobic culture and method of controlling foams by defoaming

A process for producing an alkali metal polyphosphate, comprising heating a solution comprising a solvent, alkali metal ions, phosphate ions, and 3 to 50% by weight of organic matter, wherein the solution contains, in total, 5 to 65% by weight of the alkali metal ions and the phosphate ions, and the ratio M/P is 1.0 to 3.0, wherein M is the number of moles of alkali metal ions in the solution and P is the number of moles of orthophosphate ions in the solution, at a temperature of 800.degree. to 1200.degree. C. in the presence of excess air, optionally after the solution is at least partially dried to solid, to produce the alkali metal polyphosphate.

Process for producing alkali metal polyphosphates

A method for purification of an amino acid which comprises contacting an amino acid solution containing impurities with an ion exchange resin to selectively adsorb the amino acid onto the resin, eluting and recovering the adsorbed amino acid whereby the resin is contacted with the amino acid solution in countercurrent continuous multiple steps during adsorption and an eluent is contacted with the adsorbed resin in countercurrent continuous multiple steps during elution.

Method for purification of an amino acid using ion exchange resin

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Kawasaki, Japan

Hisao Itoh