Back to Search
Start Over
Exploring gingerol glucosides with enhanced anti-inflammatory activity through a newly identified α-glucosidase (ArG) from Agrobacterium radiobacter DSM 30147.
- Source :
-
Journal of Bioscience & Bioengineering . Sep2024, Vol. 138 Issue 3, p218-224. 7p. - Publication Year :
- 2024
-
Abstract
- Gingerols are phenolic biomedical compounds found in ginger (Zingiber officinale) whose low aqueous solubility limits their medical application. To improve their solubility and produce novel glucosides, an α -glucosidase (glycoside hydrolase) from Agrobacterium radiobacter DSM 30147 (Ar G) was subcloned, expressed, purified, and then confirmed to have additional α -glycosyltransferase activity. After optimization, the Ar G could glycosylate gingerols into three mono-glucosides based on the length of their acyl side chains. Compound 1 yielded 63.0 %, compound 2 yielded 26.9 %, and compound 3 yielded 4.37 %. The production yield of the gingerol glucosides optimally increased in 50 mM phosphate buffer (pH 6) with 50 % (w/v) maltose and 1000 mM Li+ at 40 °C for an 24-h incubation. The structures of purified compound 1 and compound 2 were determined as 6-gingerol-5- O - α -glucoside (1) and novel 8-gingerol-5- O - α -glucoside (2), respectively, using nucleic magnetic resonance and mass spectral analyses. The aqueous solubility of the gingerol glucosides was greatly improved. Further assays showed that, unusually, 6-gingerol-5- O - α -glucoside had 10-fold higher anti-inflammatory activity (IC 50 value of 15.3 ± 0.5 μM) than 6-gingerol, while the novel 8-gingerol-5- O - α -glucoside retained 42.7 % activity (IC 50 value of 106 ± 4 μM) compared with 8-gingerol. The new α -glucosidase (Ar G) was confirmed to have acidic α -glycosyltransferase activity and could be applied in the production of α -glycosyl derivatives. The 6-gingerol-5- O - α -glucoside can be applied as a clinical drug for anti-inflammatory activity. [Display omitted] [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13891723
- Volume :
- 138
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Bioscience & Bioengineering
- Publication Type :
- Academic Journal
- Accession number :
- 178940598
- Full Text :
- https://doi.org/10.1016/j.jbiosc.2024.06.004