Alkylation of pentaerythritol by phase-transfer catalysis. 3. Influence of the tetrahedral structure of pentaerythritol on the rate and selectivity of the phase-transfer-catalyzed reaction
Carrier for immobilizing microorganisms, and method for converting nitrogen compounds in a liquid using the same
申请人:Matsumura, Masatoshi
公开号:EP0758680A2
公开(公告)日:1997-02-19
A carrier for immobilizing microorganisms, comprising a porous cellulose derivative or a porous cellulose, which has a good affinity for the microorganisms, can be applied to any liquid treatment tank without limiting use sites, and does not require a plant investment for immobilization of the microorganisms, and a method of converting nitrogen compounds in a liquid to be treated such as potable water or wastewater, by introducing the carrier together with the liquid to be treated into a liquid treatment tank such as a nitrification treatment tank or a denitrification treatment tank, thereby converting the nitrogen compounds contained in the liquid to be treated into harmless nitrogen compounds, are disclosed.
NOUGUIER R. M.; MCHICH M., J. ORG. CHEM., 52,(1987) N 14, 2995-2997
作者:NOUGUIER R. M.、 MCHICH M.
DOI:——
日期:——
AUTOINDUCER COMPOUND TO IMPROVE THE PRODUCTIVITY OF NATAMYCIN PRODUCING STREPTOMYCES STRAINS
申请人:DSM IP Assets B.V.
公开号:EP1625225A1
公开(公告)日:2006-02-15
Autoinducer compound to improve the productivity of natamycin streptomyces strains
申请人:Recio Perez Eliseo
公开号:US20060275873A1
公开(公告)日:2006-12-07
The invention provides a compound of the formula (I). Furthermore, the invention provides a process for the production of a compound of formula (I). The present invention also provides a process for the production of natamycin by a
Streptomyces
strain comprising adding a composition comprising an auto inducer to the fermentation medium. The present invention furthermore provides the use of a compound of formula (I) in the manufacture of a product by fermentation of a
Streptomyces
strain. The present invention finally discloses a
Streptomyces
strain that is defective in natamycin production and that is capable of producing a compound of formula (I) wherein both R
1
and R
2
are hydrogen and a
Streptomyces
strain that is defective in production of a compound of formula (I) wherein both R
1
and R
2
are hydrogen and that is capable of producing natamycin in the presence of said compound.