Publication
Effect of airflow rate on yields of Steinernema carpocapse Az 20 in liquid culture in an external-loop airlift bioreactor
| Summary: | 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. |
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| Main Authors: | Neves, J. M. |
| Other Authors: | Teixeira, J. A.; Simões, N.; Mota, M. |
| Subject: | External-loop airlift Airflow Entomopathogenic nematodes Mating effectiveness Mass production |
| Year: | 2001 |
| Country: | Portugal |
| Document type: | article |
| Access type: | open access |
| Associated institution: | Universidade do Minho |
| Language: | English |
| Origin: | RepositóriUM - Universidade do Minho |
| Summary: | 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. |
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