Details
| Original language | English |
|---|---|
| Pages (from-to) | 158-163 |
| Number of pages | 6 |
| Journal | Applied Microbiology and Biotechnology |
| Volume | 51 |
| Issue number | 2 |
| Publication status | Published - Feb 1999 |
Abstract
The basidiomycete Cystoderma carcharias transformed citronellol into 3,7-dimethyl-1,6,7-octane-triol as the main product. 3,7-Dimethyl-6,7-epoxy- 1-octanol was identified as important intermediary product of the biotransformation, and the allylic diols 2,6-dimethyl-2-octene-1,8-diol, 3,7- dimethyl-5-octene-1,7-diol and 3,7-dimethyl-7-octene-1,6-diol were found to be minor products. Microbial formation of rose oxide, a flavour-impact component, was observed for the first time. The formation of the main products was inhibited by 70% after addition of 0.1 mmol l-1 cytochrome monooxygenase inhibitors. Formation of 3,7-dimethyl-1,6,7-octanetriol was effective in a bioreactor with aeration over a coil of a hydrophobic microporous polypropene capillary membrane. Production rates of up to 150 mg l-1 day-1 were reached and led tO a product concentration of 866 mg l- 1 (conversion rate: 52%). The total loss of the added volatile substrate via the exhaust air was 4.5% when this aeration method was used.
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biotechnology
- Immunology and Microbiology(all)
- Applied Microbiology and Biotechnology
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In: Applied Microbiology and Biotechnology, Vol. 51, No. 2, 02.1999, p. 158-163.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Biotransformation of citronellol by the basidiomycete Cystoderma carcharias in an aerated-membrane bioreactor
AU - Onken, J.
AU - Berger, R. G.
N1 - Funding information: Acknowledgement This work was supported by the EU project BIO4-CT95-0049 and by the Fonds der Chemischen Industrie, Frankfurt.
PY - 1999/2
Y1 - 1999/2
N2 - The basidiomycete Cystoderma carcharias transformed citronellol into 3,7-dimethyl-1,6,7-octane-triol as the main product. 3,7-Dimethyl-6,7-epoxy- 1-octanol was identified as important intermediary product of the biotransformation, and the allylic diols 2,6-dimethyl-2-octene-1,8-diol, 3,7- dimethyl-5-octene-1,7-diol and 3,7-dimethyl-7-octene-1,6-diol were found to be minor products. Microbial formation of rose oxide, a flavour-impact component, was observed for the first time. The formation of the main products was inhibited by 70% after addition of 0.1 mmol l-1 cytochrome monooxygenase inhibitors. Formation of 3,7-dimethyl-1,6,7-octanetriol was effective in a bioreactor with aeration over a coil of a hydrophobic microporous polypropene capillary membrane. Production rates of up to 150 mg l-1 day-1 were reached and led tO a product concentration of 866 mg l- 1 (conversion rate: 52%). The total loss of the added volatile substrate via the exhaust air was 4.5% when this aeration method was used.
AB - The basidiomycete Cystoderma carcharias transformed citronellol into 3,7-dimethyl-1,6,7-octane-triol as the main product. 3,7-Dimethyl-6,7-epoxy- 1-octanol was identified as important intermediary product of the biotransformation, and the allylic diols 2,6-dimethyl-2-octene-1,8-diol, 3,7- dimethyl-5-octene-1,7-diol and 3,7-dimethyl-7-octene-1,6-diol were found to be minor products. Microbial formation of rose oxide, a flavour-impact component, was observed for the first time. The formation of the main products was inhibited by 70% after addition of 0.1 mmol l-1 cytochrome monooxygenase inhibitors. Formation of 3,7-dimethyl-1,6,7-octanetriol was effective in a bioreactor with aeration over a coil of a hydrophobic microporous polypropene capillary membrane. Production rates of up to 150 mg l-1 day-1 were reached and led tO a product concentration of 866 mg l- 1 (conversion rate: 52%). The total loss of the added volatile substrate via the exhaust air was 4.5% when this aeration method was used.
UR - http://www.scopus.com/inward/record.url?scp=0033025939&partnerID=8YFLogxK
U2 - 10.1007/s002530051376
DO - 10.1007/s002530051376
M3 - Article
C2 - 10091320
AN - SCOPUS:0033025939
VL - 51
SP - 158
EP - 163
JO - Applied Microbiology and Biotechnology
JF - Applied Microbiology and Biotechnology
SN - 0175-7598
IS - 2
ER -