Combined effects of initial sucrose concentration and inoculum size on cell growth and ginseng saponin production by suspension cultures of Panax ginseng
Co. Akalezi et al., Combined effects of initial sucrose concentration and inoculum size on cell growth and ginseng saponin production by suspension cultures of Panax ginseng, PROCESS BIO, 34(6-7), 1999, pp. 639-642
Cell growth and ginseng saponin production by suspension cultures of Panax
ginseng were investigated under various initial sucrose concentrations and
inoculum sizes. Cell growth was low at a low inoculum size of 1.5 g DW/1, a
nd the maximum cell growth rate was obtained at 3 g DW/1 of inoculum size.
A cell density of 22.4 g/l was obtained at inoculum size of 6 g DW/1 and in
itial sucrose concentration of 60 g/l after 26 days cultivation. The maximu
m cell yield of 0.83 was obtained at inoculum size of 3 g DW/1 and initial
sucrose level of 30 g/l. Saponin biosynthesis was stimulated with high init
ial sucrose concentrations (60-80 g/l), and the maximum saponin production
of 275 mg/l was achieved at 6 g/l of inoculum size and 60 g/l initial mediu
m sucrose. This work is considered to be helpful for efficient large-scale
bioprocessing of the ginseng cell cultures in bioreactors. (C) 1999 Elsevie
r Science Ltd. All rights reserved.