Improving Aqueous Solubility of Natural Antioxidant Mangiferin through Glycosylation by Maltogenic Amylase from Parageobacillus galactosidasius DSM 18751

doi:10.3390/antiox10111817

CNU IR > Pharmacy and Science > Dept. of Cosmetic Science and institute of cosmetic science > Periodical Articles > Item 310902800/34344

Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/34344

Title:	Improving Aqueous Solubility of Natural Antioxidant Mangiferin through Glycosylation by Maltogenic Amylase from Parageobacillus galactosidasius DSM 18751
Authors:	Wu, Jiumn-Yih Ding, Hsiou-Yu Wang, Tzi-Yuan Tsai, Yu-Li Ting, Huei-Ju Chang, Te-Sheng
Contributors:	Natl Quemoy Univ, Dept Food Sci Chia Nan Univ Pharm & Sci, Dept Cosmet Sci Acad Sinica, Biodivers Res Ctr Natl Univ Tainan, Dept Biol Sci & Technol
Keywords:	mangiferin maltogenic amylase glycosylation glucoside Parageobacillus galactosidasius
Date:	2021
Issue Date:	2023-11-11 11:44:49 (UTC+8)
Publisher:	MDPI
Abstract:	Mangiferin is a natural antioxidant C-glucosidic xanthone originally isolated from the Mangifera indica (mango) plant. Mangiferin exhibits a wide range of pharmaceutical activities. However, mangiferin's poor solubility limits its applications. To resolve this limitation of mangiferin, enzymatic glycosylation of mangiferin to produce more soluble mangiferin glucosides was evaluated. Herein, the recombinant maltogenic amylase (MA; E.C. 3.2.1.133) from a thermophile Parageobacillus galactosidasius DSM 18751(T) (PgMA) was cloned into Escherichia coli BL21 (DE3) via the expression plasmid pET-Duet-1. The recombinant PgMA was purified via Ni2+ affinity chromatography. To evaluate its transglycosylation activity, 17 molecules, including mangiferin (as sugar acceptors), belonging to triterpenoids, saponins, flavonoids, and polyphenol glycosides, were assayed with beta -CD (as the sugar donor). The results showed that puerarin and mangiferin are suitable sugar acceptors in the transglycosylation reaction. The glycosylation products from mangiferin by PgMA were isolated using preparative high-performance liquid chromatography. Their chemical structures were glucosyl-alpha-(1 -> 6)-mangiferin and maltosyl-alpha-(1 -> 6)-mangiferin, determined by mass and nucleic magnetic resonance spectral analysis. The newly identified maltosyl-alpha-(1 -> 6)-mangiferin showed 5500-fold higher aqueous solubility than that of mangiferin, and both mangiferin glucosides exhibited similar 1,1-diphenyl-2-picrylhydrazyl free radical scavenging activities compared to mangiferin. PgMA is the first MA with glycosylation activity toward mangiferin, meaning mangiferin glucosides have potential future applications.
Relation:	ANTIOXIDANTS-BASEL, v.10, n.11, pp.1817
Appears in Collections:	[Dept. of Cosmetic Science and institute of cosmetic science] Periodical Articles

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