文档介绍：Laudatio
This volume is dedicated to Dr. Armin Fiechter, Professor Emeritus of Bio-
technology at the ETH Zürich and former managing editor of Advances in
Biochemical Engineering/Biotechnology and Journal of Biotechnology and
editor and member of Advisory Boards of several international periodicals on
the occasion of his 75th birthday.
Armin Fiechter is one of the pioneers in biotechnology – recognized world-
wide for his important contributions to various fields of biotechnology. Profes-
sor Fiechter’s research covers a broad area. He carried out pioneering work in
several fields. From the beginning, he stressed the necessity of interdisciplinary
and international cooperation. He especially promoted cooperation between
engineering and biological research groups and helped to e the hurdles
and borders between these groups. His active role as a teacher of young
scientists led to the well known “Fiechter School”.Some well-known researchers
in industry and e from his laboratory. His more than 500 publica-
tions document his research activities in different areas of biotechnology.
The quantitative evaluation of biological regulation was especially difficult,
because reproducibility of the measurement of the dynamical processes was
unsatisfactory in the 1960s. One of the first long-term continuous cultivation of
baker’s yeast in a chemostat system bination with aseptic operation and
use of pH- redox- and oxygen-electrodes was realized by his group. The sterility
was obtained by O-ring sealing. The sterilizable pH-, redox- and oxygen elec-
trodes were developed in the industry with his co-operation. The sealing of the
stirrer shaft with a sliding sleeve and the use a marine propeller bination
with a draft tube (compact loop reactor, COLOR) for maintaining ideal mixing
and for better mechanical foam control was also developed in cooperation with
his group. One of the key issue was the better process control by means of in situ
monitored pH- and