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Highly Regioselective Biotransformation of Ginsenoside Rb2 into Compound Y and Compound K by β-glycosidase Purified from Mycelia

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Journal J Ginseng Res
Date 2018 Oct 20
PMID 30337811
Citations 15
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Abstract

Background: The biological activities of ginseng saponins (ginsenosides) are associated with type, number, and position of sugar moieties linked to aglycone skeletons. Deglycosylated minor ginsenosides are known to be more biologically active than major ginsenosides. Accordingly, the deglycosylation of major ginsenosides can provide the multibioactive effects of ginsenosides. The purpose of this study was to transform ginsenoside Rb2, one of the protopanaxadiol-type major ginsenosides, into minor ginsenosides using β-glycosidase (BG-1) purified from mycelium.

Methods: Ginsenoside Rb2 was hydrolyzed by using BG-1; the hydrolytic properties of Rb2 by BG-1 were also characterized. In addition, the influence of reaction conditions such as reaction time, pH, and temperature, and transformation pathways of Rb2, Rd, F2, compound O (C-O), and C-Y by treatment with BG-1 were investigated.

Results: BG-1 first hydrolyzes 3--outer β-d-glucoside of Rb2, then 3--β-d-glucoside of C-O into C-Y. C-Y was gradually converted into C-K with a prolonged reaction time, but the pathway of Rb2 → Rd → F2 → C-K was not observed. The optimum reaction conditions for C-Y and C-K formation from Rb2 by BG-1 were pH 4.0-4.5, temperature 45-60°C, and reaction time 72-96 h.

Conclusion: β-Glycosidase purified from mycelium can be efficiently used to transform Rb2 into C-Y and C-K. To our best knowledge, this is the first result of transformation from Rb2 into C-Y and C-K by basidiomycete mushroom enzyme.

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References
1.
Yu K, Chen F, Li C . Absorption, disposition, and pharmacokinetics of saponins from Chinese medicinal herbs: what do we know and what do we need to know more?. Curr Drug Metab. 2012; 13(5):577-98. DOI: 10.2174/1389200211209050577. View

2.
Yang X, Yang Y, Ouyang D, Yang G . A review of biotransformation and pharmacology of ginsenoside compound K. Fitoterapia. 2014; 100:208-20. DOI: 10.1016/j.fitote.2014.11.019. View

3.
Tawab M, Bahr U, Karas M, Wurglics M, Schubert-Zsilavecz M . Degradation of ginsenosides in humans after oral administration. Drug Metab Dispos. 2003; 31(8):1065-71. DOI: 10.1124/dmd.31.8.1065. View

4.
Upadhyaya J, Kim M, Kim Y, Ko S, Park H, Kim M . Enzymatic formation of compound-K from ginsenoside Rb1 by enzyme preparation from cultured mycelia of Armillaria mellea. J Ginseng Res. 2016; 40(2):105-12. PMC: 4845050. DOI: 10.1016/j.jgr.2015.05.007. View

5.
Noh K, Oh D . Production of the rare ginsenosides compound K, compound Y, and compound Mc by a thermostable beta-glycosidase from Sulfolobus acidocaldarius. Biol Pharm Bull. 2009; 32(11):1830-5. DOI: 10.1248/bpb.32.1830. View