Journal
BIOPROCESS AND BIOSYSTEMS ENGINEERING
Volume 37, Issue 4, Pages 641-650Publisher
SPRINGER
DOI: 10.1007/s00449-013-1033-0
Keywords
Tripterygium wilfordii Hook. f.; MeJA; XAD-7; Secondary metabolites; Bubble column bioreactor
Funding
- National Natural Science Foundation of China [31272110]
- Special Fund for Agro-scientific Research in the Public Interest [200903052]
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The experiments of elicitation and in situ adsorption were conducted in shake flasks and then tested in a modified bubble column bioreactor for enhancing the productions of three active metabolites in Tripterygium wilfordii Hook. f., triptolide, wilforgine and wilforine. Methyl jasmonate was screened out as the elicitor and the non-ionic polymeric ion-exchange resin of Amberlite (R) XAD-7 was used for in situ product removal and protecting the alkaloids from degradation in the medium. In shake flask experiments, 3.55-fold, 49.11-fold, and 10.40-fold of triptolide, wilforgine, and wilforine, respectively, could be recovered fromthe medium and XAD-7 resin by elicitation and in situ product removal, compared with the control. The modified 10 L bubble columnbioreactor had similar productions of the three active metabolites but needed a further optimization of parameters for better growth of adventitious roots.
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