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Industrial Biotransformations

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Catalase<br />

Microbial source<br />

3) Flow scheme<br />

Fig. 1.11.1.6 – 2<br />

4) Process parameters<br />

conversion: > 98 %<br />

yield: > 98 %<br />

selectivity: 99.9 %<br />

reactor type: cascade of CSTR‘s<br />

residence time: > 1 h<br />

down stream processing: degassing with nitrogen<br />

company: Novartis, Switzerland<br />

5) Product application<br />

● The process is only relevant to remove the undesired side product H 2O 2. The dinitrodibenzyl is<br />

used as a pharmaceutical intermediate.<br />

6) Literature<br />

EC 1.11.1.6<br />

● Onken, U., Schmidt, E., Weissenrieder, T. (1996) Enzymatic H 2O 2 decomposition in a threephase<br />

suspension, Ciba-Geigy; International conference on biotechnology for industrial<br />

production of fine chemicals, 93rd event of the EFB; Zermatt, Switzerland, 29.09.1996<br />

218

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