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Biotransformation of terpene and terpenoid derivatives by Aspergillus niger NRRL 326

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Abstract

Natural products are chemicals used in many industrial processes due to their various pharmacological or biological actions. Microorganisms can catalyze reactions that allow modification of structures of phytochemicals and organic compounds. Hereby, it is possible to obtain valuable products with regio- and stereo-selective reactions. The aim of the paper was to biotransform several terpenes and terpenoids including (−)-α-pinene, β-ionone and isophorone by using A. niger NRRL 326 and to determine their biotransformation products and biological activities. According to the GC-MS analysis, the following compounds were obtained: (S)-(+)-carvone hydrate (4.28%) from (−)-α-pinene; 4-hydroxybetaionone (48.33%), 2-hydroxybetaionone (22.40%), α-ionone (1.29%) and dihydro-3-oxo-beta-ionol (1.11%) from β-ionone; 4-hydroxyisophorone (55.54%), 3,3-dimethyl-5-oxo-cyclohexanecarboxaldehyde (1.87%), 4-ketoisophorone (1.22%) and dihydrooxoisophorone (0.59%) from isophorone. The biological activities of the extracts were found to be slightly higher than the control experiments. The findings obtained will contribute to the literature and A. niger NRRL 326 have the potential to become an important biotransformation agent.

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Abbreviations

ABTS:

2,2′-azinobis-3-ethylbenzothiazoline-6-sulfonic acid

A. niger :

Aspergillus niger

B.c:

Bacillus cereus RSKK 709

C.a:

Candida albicans ATCC 10231

DMSO:

Dimethyl sulfoxide

DPPH:

1,1-diphenyl-2-picrylhydrazyl

EI:

Electron ionization

EtOAc:

Ethyl acetate

GC-MS:

Gas chromatography-mass spectrometer

K2S2O8 :

Potassium persulfate

MHA:

Mueller hinton agar

MHB:

Mueller hinton broth

MIC:

Minimum inhibitor concentration

MRSA:

Methicillin resistant Staphylococcus aureus

Na2SO4 :

Anhydrous sodium sulfate

nd:

Not determined

P.a:

Pseudomonas aeruginosa ATCC 27853

PDA:

Potato dextrose agar

S.a:

methicillin resistant Staphylococcus aureus (MRSA) ATCC 43300

TEAC:

Trolox equivalent antioxidant capacity

TIC:

Total ion chromatogram

TLC:

Thin layer chromatography

w:

Weak

YM:

Yeast malt

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Acknowledgements

The study was funded by the Scientific Research Unit of Giresun University (FEN-BAP-A-140316-60). Author is grateful to the Central Research Laboratory Research and Application Center (Giresun University) for providing facilities for the GC-MS analysis.

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Correspondence to Cengiz Çorbacı.

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The author declares no conflict of interest.

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Çorbacı, C. Biotransformation of terpene and terpenoid derivatives by Aspergillus niger NRRL 326. Biologia 75, 1473–1481 (2020). https://doi.org/10.2478/s11756-020-00459-1

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  • DOI: https://doi.org/10.2478/s11756-020-00459-1

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