Effect of airflow rate on yields of Steinernema carpocapse Az 20 in liquid culture in an external-loop airlift bioreactor.
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.
Neves
J M
JM
Dept. Biologia, Univ. Açores, 9502 Ponta Delgada, Portugal.
Teixeira
J A
JA
Simões
N
N
Mota
M
M
D000392:Air Movements; D000818:Animals; D019149:Bioreactors; D005260:Female; D007313:Insecta / Q000254:growth & development / Q000382:microbiology / Q000469:parasitology; D007928:Lethal Dose 50; D008297:Male; D010572:Pest Control, Biological; D012098:Reproduction; D017168:Rhabditida / Q000254:growth & development* / Q000382:microbiology / Q000502:physiology*; D020593:Xenorhabdus / Q000502:physiology