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| Content Provider | Springer Nature Link |
|---|---|
| Author | Wang, Wei Zhang, Zhan Ying Zhong, Jian Jiang |
| Copyright Year | 2005 |
| Abstract | A single addition of 200 μM methyl jasmonate (MJA) to high-density cell cultures of Panax notoginseng enhanced ginsenoside production in both shake-flask (250 ml) and airlift bioreactor (ALR; 1 l working volume). Repeated elicitation with two additions of 200 μM MJA during cultivation further induced the ginsenoside biosynthesis in both cultivation vessels. The content of ginsenosides Rg1, Re, Rb1 and Rd in the ALR was increased from, respectively, 0.18±0.01, 0.21±0.01, 0.21±0.02 and 0 mg per100 mg dry cell weight (DW) in untreated cell cultures (control) to 0.32±0.02, 0.36±0.02, 0.72±0.06 and 0.08±0.01 mg per100 mg DW with a single addition of MJA and further increased to 0.43±0.02, 0.46±0.03, 1.09±0.07 and 0.14±0.02 mg per100 mg DW with two additions of MJA. Interestingly, the activity of the Rb1 biosynthetic enzyme (UDPG-ginsenoside Rd glucosyltransferase), was also increased with a single elicitation by MJA and increased again by a repeated elicitation, which coincided well with the trend in the increase in Rb1 content. In order to further improve the cell density and ginsenoside production, a strategy of MJA repeated elicitation combined with sucrose feeding was adopted. The final cell density and total ginsenoside content in the ALR reached 27.3±1.5 g/l and 2.02±0.06 mg per100 mg DW; and the maximum production of ginsenoside Rg1, Re, Rb1 and Rd was 111.8±4.7, 117.2±4.6, 290.2±5.1 and 32.7±8.1 mg/l, respectively. The strategies demonstrated and the information obtained in this work are useful for the efficient large-scale production of bioactive ginsenosides by plant cell cultures. |
| Starting Page | 752 |
| Ending Page | 758 |
| Page Count | 7 |
| File Format | |
| ISSN | 01757598 |
| Journal | Applied Microbiology and Biotechnology |
| Volume Number | 67 |
| Issue Number | 6 |
| e-ISSN | 14320614 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2005-01-04 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | Subscribed |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Applied Microbiology and Biotechnology Biotechnology |
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