Optimization of Cultivating Conditions for Triterpenoids Production from Antrodia cinnmomea

Abstract

The submerged cultivating conditions for triterpenoids production from Antrodia cinnamomea were optimized using uniform design method and the one-factor-at-a-time method was adopted to investigate the effect of plants oils and glucose supply on triterpenoids production and mycelia growth. Corn starch and culturing time were identified as more significant variables for triterpenoids production. The optimal conditions for triterpenoids production was 20.0 g/L corn starch, 20.0 g/L wheat bran, 1.85 g/L MgSO4, initial pH 3 and 16 days of cultivation. In addition, investigation of plant oils and glucose supply showed that 0.3 % (v/v) olive oil supply at the beginning of fermentation stimulated mycelia growth and significantly increased triterpenoids production; 0.2 % (w/v) glucose supplement at 10th day enhanced production of triterpenoids with slight effect on biomass, which is reported for the first time. The triterpenoids production experimentally obtained under the optimal conditions was 7.23 % (w/w). The uniform design method may be used to optimize many environmental and genetic factors such as temperature and agitation that can also affect the triterpenoids production from A. cinnamomea.

Figures

Fig. 1

The time courses of mycelium…

Fig. 1

The time courses of mycelium growth and triterpenoids production

Fig. 1 The time courses of mycelium growth and triterpenoids production

Fig. 2

The effects of plant oils…

Fig. 2

The effects of plant oils on mycelium growth and triterpenoids production

Fig. 2 The effects of plant oils on mycelium growth and triterpenoids production

Fig. 3

The effects of glucose on…

Fig. 3

The effects of glucose on mycelium growth and triterpenoids production

Fig. 3 The effects of glucose on mycelium growth and triterpenoids production