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Production of 11alpha-hydroxyprogesterone using Aspergillus terreus immobilized on polytetrafluoroethylene
Ahmed, E.M.;
Brazilian Journal of Microbiology , 2007, DOI: 10.1590/S1517-83822007000200007
Abstract: in attempt to immobilize the mycelial fungi on a new hydrophobic matrix, aspergillus terreus mycelia were immobilized into polytetrafluoroethylen (ptfe) and used for selected conversion of progesterone to 11a-hydroxyprogesterone. the immobilized cells exhibited higher yields than the free cells. different parameters that can affect the cell activity were measured. the optimum ph was 6 and the optimum temperature was 30oc. higher transformation activities were achieved with matrix contained 40% ptfe. no considerable loss in yield was observed with storage of the cells at 4oc for 30 days. utilization of the immobilized cells in repeated batch processes indicated that the cells retained about 84% of their activity after reuse for eight successive cycles.
Tierras secas, desertificación y recursos hídricos
E.M. Abraham
Ecosistemas , 2008,
Abstract:
Over woordvorming in het Javaans
E.M. Uhlenbeck
Bijdragen tot de Taal-, Land- en Volkenkunde , 1955,
Abstract:
Perspectief der Nederlandse ori ntalistiek
E.M. Uhlenbeck
Bijdragen tot de Taal-, Land- en Volkenkunde , 1967,
Abstract:
De systematiek der Javaanse telwoorden
E.M. Uhlenbeck
Bijdragen tot de Taal-, Land- en Volkenkunde , 1953,
Abstract:
Verdubbelingsprocédé’s bij het Javaanse werkwoord
E.M. Uhlenbeck
Bijdragen tot de Taal-, Land- en Volkenkunde , 1954,
Abstract:
Woordverdubbeling in het Javaans
E.M. Uhlenbeck
Bijdragen tot de Taal-, Land- en Volkenkunde , 1953,
Abstract:
De interpretatie van de Oud-Javaanse Ramayana-kakawin
E.M. Uhlenbeck
Bijdragen tot de Taal-, Land- en Volkenkunde , 1975,
Abstract:
A sad case of lack of scholarly communication: an American introduction to old Javanese
E.M. Uhlenbeck
Bijdragen tot de Taal-, Land- en Volkenkunde , 1981,
Abstract:
The problem of interpolation in the Old Javanese Ramayana kakawin
E.M. Uhlenbeck
Bijdragen tot de Taal-, Land- en Volkenkunde , 1989,
Abstract:
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