Reference

Application of N-type microporous filter membrane in the production of penicillin

Application of N-type microporous filter membrane in the production of penicillin. Tang, Zhenqiu; Gu, Yuefen (Natl. Qingjiang Chem. Eng. Plant, Peop. Rep. China). Yaoxue Tongbao, 18(10), 615-18 (Chinese) 1983. CODEN: YHTPAD. ISSN: 0512-7343. DOCUMENT TYPE: Journal CA Section: 16 (Fermentation and Bioindustrial Chemistry) The toxicity, chem. stability, and filtration efficiency of an N-type microporous filter membrane (MFM) were tested. The MFM did not show noticeable toxicity when added to microbial cultures or on injection of MFM ext. into mice. No swelling, deformation, or degrdn. of the MFM was obsd. on incubation with various org. solvents or drugs, indicating that the MFM is chem. stable. 69-53-4 and 61-33-6 are just another two chemicals used in this study. The MFM effectively and efficiently filtered ampicillin [69-53-4] and penicillin [61-33-6] with acceptable purity from microbial culture broths. .

Agitation in the production of pharmaceuticals

Agitation in the production of pharmaceuticals. Reccagni, Roberto (Milan, Italy). ICP, 11(9), 73-8 (Italian) 1983. CODEN: ICPDDL.Some commonly used reagents like 7782-44-7 and 61-33-6 are used in this experiment. ISSN: 0390-2358. DOCUMENT TYPE: Journal CA Section: 16 (Fermentation and Bioindustrial Chemistry) Stirring as an operation used in the pharmaceutical industry is discussed. Correlations between penicillin [61-33-6] or streptomycin [57-92-1] prodn. and O2 transfer during agitation are shown as examples. The problem of an inadequate Italian terminol. for stirring, which causes a dependency on English terms, is also discussed. .