Interconversion of penicillins by mycelium ofPenicillium chrysogenum
نویسندگان
چکیده
منابع مشابه
The effect of nutrients on formation of penicillin by washed mycelium of Penicillium chrysogenum.
Many different substances are known to affect the yields of penicillin from growing cultures of Penicillium chrysogenum. Under the usual conditions, it is difficult to distinguish between the effect of a substance on growth of the mould (and hence the indirect effect on production of penicillin) and its direct effect on antibiotic synthesis. The use of washed mycelium (Halliday & Arnstein, 1956...
متن کاملProduction of penicillin with waste mycelium Penicillium chrysogenum as the sole source of nitrogen.
In a preliminary communication (Ghosh, 1959) it was reported that fresh and wet mycelium of Penicillium chrysogenum, as obtained from a rotary filter in a penicillin plant, could be well utilized as the sole source of nitrogen for penicillin production by the mold either in shaken flask or in aerated and agitated large fermentors. The waste mycelium did not need any pretreatment whatsoever and ...
متن کاملBiosynthesis of penicillins; new crystalline biosynthetic penicillins.
Paper III (1) in this series describes several tests which were found to be useful in determining whether a given compound is utilized by the mold in penicillin formation. To provide proof of the incorporation of various acyl groups into the penicillin molecule and to be able to determine the chemical characteristics and biological properties of the various penicillins, isolation and crystalliz...
متن کاملIntracellular Biosynthesis of Gold Nanoparticles by the Fungus Penicillium Chrysogenum
In this study, the biosynthesis of gold nanoparticles by Penicillium chrysogenum, isolated from Ahar copper mine, was investigated. The gold nanoparticles were synthesized by reducing the aqueous gold ions using the culture supernatant of the filamentous fungi. The UV–vis spectrum displayed a characteristic peak at 532 nm that is very specific for gold nanoparticles. The XRD spectrum confirmed ...
متن کاملAntagonism of the antibacterial action of some penicillins by other penicillins and cephalosporins.
There are many examples of two penicillins acting synergistically, usually by one competitively inhibiting beta-lactamase, thus protecting the other from inactivation. There are few reports on penicillins antagonizing each other. Eight strains of three genera (Proteus, Escherichia, Pseudomonas) isolated at Boston City Hospital or Institut Pasteur, Paris, showed antagonism of carbenicillin or am...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1981
ISSN: 0378-1097,1574-6968
DOI: 10.1111/j.1574-6968.1981.tb06219.x