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A high-density culture (HDC) of Panax notoginseng cells for simultaneous production of ginseng saponin (secondary metabolite) and polysaccharide (primary metabolite) was performed in Erlenmeyer flasks. An increase in the initial phosphate concentration up to 3.75 mm was found to be beneficial to the production of these two useful metabolites. The most suitable medium was ascertained to be Murashige...
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