Simultaneous prodn of l-threonine and l-valine
Реферат: L-threonine and L-valine production by bacterial fermentation Nutriment-requiring mutation-strain of a micro-organism capable of producing L-threonine and L-valine, pref. obtained from Arthrobacter paraffineus, Coryne-bacterium ketocarboclastus or Brevibacterium ketoglutamicum by irradiation, is aerobically cultured at 20-40 degrees C and pH 7 in an aqs. medium in the presence of isoleucine, alpha-keto- or alpha-amino-butyric acid and also of at least one C-containing material as main C source; L-threonine and L-valine are simultaneously concentrated in the culture liquor, and separated.
MICROORGANISM WITH KNOCKED fadR GENE ON CHROMOSOME AND METHOD FOR PRODUCTION OF L-THREONINE BY FERMENTATION USING SUCH MUTANT
Номер патента: RU2305132C2. Автор: Янг-Хоон ПАРК,Дзин-Хо ЛИ,Биоунг-Чоон ЛИ,Дае-Чеол КИМ,Дзае-Йонг ЧО. Владелец: СиДжей КОРП.. Дата публикации: 2007-08-27.