Processing characteristics of submerged fermentation of Antrodia cinnamomea in airlift bioreactor
Journal
Biochemical Engineering Journal
Journal Volume
73
Pages
65-71
Date Issued
2013
Author(s)
Chiang C.-C.
Abstract
Three 5-L airlift bioreactors including airlift reactor with solid draft tube (ALs), airlift reactor with net draft tube (ALn) and bubble column reactor (BC) were investigated for their suitability for cultivating Antrodia cinnamomea, and a stirred tank reactor (ST) was used for comparison. Results indicated that after 7 days fermentation, ALs yielded the highest mycelium content (313mg/100mL) and had the lowest dissolved oxygen in the broth. Among different aeration rates (0.025, 0.05, 0.1, 0.5, 1vvm) used during cultivation of A. cinnamomea in ALs, the aeration rate 0.1vvm resulted in a volumetric oxygen transfer coefficient of 10.8h-1 and produced the highest mycelium content. When the optimal conditions were used for the fermentation of A. cinnamomea in an industrial 500-L ALs, the mycelium content in the broth reached 542mg/100mL in 28 days. The IC50 values of the ethanol extracts of A. cinnamomea mycelium cultivated in 5-L and 500-L ALs for 28 days were 23 and 17£gg/mL, respectively, for hepatocellular carcinoma cells HepG2. And after 42 days cultivation in 500-L ALs, the IC50 value of the mycelium ethanol extract was reduced to 10£gg/mL. ? 2013 Elsevier B.V.
Subjects
Aeration
Airlift bioreactors
Antrodia cinnamomea
Bioprocess design
Oxygen transfer
Sacle-up
SDGs
Type
journal article