Abstract
Catharanthine production in Catharanthus roseussuspension cell cultures was increased by about 4-fold to 28 mg l−1, 23 mg l−1and 24 mg l−1by adding sodium alginate, mannitol or polyvinyl pyrrolidone, respectively. Sodium alginate and polyvinyl pyrrolidone also enhanced ajmalicine production to 28 mg l−1and 31 mg l−1, respectively. Up to 55–70% of the total alkaloids were released into the medium. These treatments could stimulate higher alkaloid production in C. roseuscell cultures than NaCl and KCl stresses. The possible mechanisms for these treatment effects are discussed.
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