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KMID : 0545120210310060847
Journal of Microbiology and Biotechnology
2021 Volume.31 No. 6 p.847 ~ p.854
Improved Bioactivity of 3-O-¥â-D-Glucopyranosyl Platycosides in Biotransformed Platycodon grandiflorum Root Extract by Pectinase from Aspergillus aculeatus
Ju Jung-Hun

Lee Tae-Eui
Lee Jin
Kim Tae-Hun
Shin Kyung-Chul
Oh Deok-Kun
Abstract
Platycodon grandiflorum (balloon flower) root (Platycodi radix, PR) is used as a health supplement owing to its beneficial bioactive properties. In the present study, the anti-inflammatory, antioxidant, and whitening effects of deglycosylated platycosides (saponins) from PR biotransformed by pectinase from Aspergillus aculeatus were investigated. The bioactivities of the platycosides improved when the number of sugar moieties attached to the aglycone platycosides was decreased. The deglycosylated saponins exhibited higher lipoxygenase inhibitory activities (anti-inflammatory activities) than the precursor platycosides and the anti-inflammatory compound baicalein. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity of the pectinase-treated PR extract was higher than that of the non-treated PR extract. The trolox-equivalent antioxidant capacity (TEAC) assay showed improved values as the saponins were hydrolyzed. The tyrosinase inhibitory activities (whitening effects) of deglycosylated platycosides were higher than those of the precursor platycosides. Furthermore, 3-O-¥â-D-glucopyranosyl platycosides showed higher anti-inflammatory, antioxidant, and whitening activities than their precursor glycosylated platycosides. Therefore, 3-O-¥â-D-glucopyranosyl platycosides may improve the beneficial effects of nutritional supplements and cosmetic products.
KEYWORD
Platycodi radix, 3-O-¥â-D-glucopyranosyl platycosides, anti-inflammation, antioxidant, tyrosinase inhibition
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