Baumgertel A, Grimm R, Eisenbeiß WF, Kreis W (2003)
Publication Language: English
Publication Type: Journal article, Original article
Publication year: 2003
Publisher: Elsevier
Book Volume: 64
Pages Range: 411-418
Journal Issue: 2
DOI: 10.1016/S0031-9422(03)00418-7
A flavonol-3-O-β-heterodisaccharide glycosidase (FHG I) was isolated from dried aerial tissues of Fagopyrum esculentum Moench (Fagopyri herba). It has a specific enzyme activity of ca. 3.5 nkat mg-1 protein in buffered extracts when rutin (quercetin-3-O-rutinoside) was used as substrate and an optimal enzyme activity was seen at around pH 4.8 and 30 °C. FHG I was purified about 156-fold to apparent homogeneity by hydrophobic interaction, anion exchange and size exclusion chromatographic steps. The apparent molecular mass of FHG I was 74.5 ± 2 kDa as determined by SDS-PAGE and it is a monomeric glycoprotein with a carbohydrate content of 23%. The isoelectric point as determined by isoelectric focusing was 5.7 and the energy of activation was 32 kJ mol-1. FHG I exhibits a high substrate specificity, preferring flavonol 3-O-glycosides comprising the disaccharide rutinose. The K
APA:
Baumgertel, A., Grimm, R., Eisenbeiß, W.F., & Kreis, W. (2003). Purification and characterization of a flavonol 3-O-beta-heterodisaccharidase from the dried herb of Fagopyrum esculentum Moench. Phytochemistry, 64(2), 411-418. https://doi.org/10.1016/S0031-9422(03)00418-7
MLA:
Baumgertel, Andreas, et al. "Purification and characterization of a flavonol 3-O-beta-heterodisaccharidase from the dried herb of Fagopyrum esculentum Moench." Phytochemistry 64.2 (2003): 411-418.
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