Abstract：
:Extracts of the medicinal plant Hypericum perforatum are used to treat depression and skin irritation. A major API is hyperforin, characterized by sensitivity to light, oxygen and temperature. Total synthesis of hyperforin is challenging and its content in field-grown plants is variable. We have established in vitro cultures of auxin-induced roots, which are capable of producing hyperforin, as indicated by HPLC-DAD and ESI-MS analyses. The extraction yield and the productivity upon use of petroleum ether after solvent screening were ∼5 mg/g DW and ∼50 mg/L culture after six weeks of cultivation. The root cultures also contained secohyperforin and lupulones, which were not yet detected in intact plants. In contrast, they lacked another class of typical H. perforatum constituents, hypericins, as indicated by the analysis of methanolic extracts. Hyperforins and lupulones were stabilized and enriched as dicyclohexylammonium salts. Upon up-scaling of biomass production and downstream processing, H. perforatum root cultures may provide an alternative platform for the preparation of medicinal extracts and the isolation of APIs.
journal_name
J Biotechnoljournal_title
Journal of biotechnologyauthors
Gaid M,Haas P,Beuerle T,Scholl S,Beerhues Ldoi
10.1016/j.jbiotec.2016.02.016subject
Has Abstractpub_date
2016-03-20 00:00:00pages
47-55eissn
0168-1656issn
1873-4863pii
S0168-1656(16)30062-1journal_volume
222pub_type
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