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Effect of airflow rate on yields of Steinernema carpocapse Az 20 in liquid culture in an external‐loop airlift bioreactor
Author(s) -
Neves J.M.,
Teixeira J.A.,
Simões N.,
Mota M.
Publication year - 2000
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/1097-0290(20010205)72:3<369::aid-bit15>3.0.co;2-f
Subject(s) - airlift , bioreactor , airflow , aeration , production rate , productivity , volumetric flow rate , pulp and paper industry , environmental science , ventilation (architecture) , biology , environmental engineering , mechanics , botany , ecology , engineering , physics , thermodynamics , process engineering , economics , macroeconomics
Maximization of the contact between males and females is a key factor in the production of the nematode Steinernema carpocapsae in a bioreactor.%The influence of the airflow rate in male and female distribution and mass production in an external‐loop bioreactor with a deceleration zone was studied. When operating at an airflow rate of 0.05 vvm, a high retention of females in the deceleration zone of the bioreactor was observed and a larger nematode productivity was obtained. At this aeration rate there was a higher proportion of males in that zone, which together with the lower circulation rate, increases the probability of encounters, thereby explaining the increase in productivity. © 2001 John Wiley & Sons, Inc. Biotechnol Bioeng 72: 369–373, 2001.