Journal article
The Vitamin C Analogue 2-O-β-D-Glucopyranosyl-L-ascorbic Acid in Rhizomes, Stems and Leaves of Lycium barbarum.
- Bubloz C HES-SO Valais-Wallis, Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland, Route du Rawyl 47, CH-1950 Sion, Switzerland; BFH-HAFL, Bern University of Applied Sciences, Länggasse 85, CH-3052 Zollikofen, Switzerland.
- Udrisard I HES-SO Valais-Wallis, Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland, Route du Rawyl 47, CH-1950 Sion, Switzerland.
- Micaux F HES-SO Valais-Wallis, Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland, Route du Rawyl 47, CH-1950 Sion, Switzerland.
- Piantini U HES-SO Valais-Wallis, Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland, Route du Rawyl 47, CH-1950 Sion, Switzerland.
- Amini-Rentsch L HEIA-FR, School of Engineering and Architecture of Fribourg, Bd de Pérolles 80, CH-1700 Fribourg, Switzerland.
- Marti R HEIA-FR, School of Engineering and Architecture of Fribourg, Bd de Pérolles 80, CH-1700 Fribourg, Switzerland.
- Andlauer W HES-SO Valais-Wallis, Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland, Route du Rawyl 47, CH-1950 Sion, Switzerland;, Email: Wilfried.Andlauer@hevs.ch.
- 2020-10-29
Published in:
- Chimia. - 2020
English
Awareness of health benefits of goji berries coming from their bioactive compounds, mostly antioxidants like ascorbic acid, has grown. Recently, an ascorbic acid analogue from goji berries, the 2-O-β-D-glucopyranosyl-L-ascorbic acid has been reported. In rats, the analogue is absorbed intact and in the form of free vitamin C and consequently has been proposed as a provitamin C. Synthesis of the analogue is demanding and laborious and therefore reliable natural sources are searched. Knowledge concerning the analogue's occurrence in other parts of goji plant is lacking. The aim of this study was to evaluate the contents of 2-O-β-D-glucopyranosyl-L-ascorbic acid in rhizomes, stems and leaves from Lycium barbarum. Rhizomes, stems and leaveswere extracted and the content of 2-O-β-D-glucopyranosyl-L-ascorbic acid and non glucosylated, free ascorbic acid was determined by HPLC-DAD. 2-O-β-D-glucopyranosyl-L-ascorbic acid was found in all goji plant tissues investigated. Based on dry weight, 3.34 mg/100 g were found in the leaves, 4.05 mg/100 g in the stems and up to 12.6 mg/100 g in the rhizomes. Nevertheless, the analogue content in goji berries is much higher (40 to 280 mg/100 g dry weight). The present study confirmed the presence of 2-O-β-D-glucopyranosyl-L-ascorbic acid in rhizomes, stems and leaves of Lycium barbarum. However, their content compared to goji berries is considerably lower.
- Language
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- English
- Open access status
- gold
- Identifiers
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- DOI 10.2533/chimia.2020.828
- PMID 33115572
- Persistent URL
- https://folia.unifr.ch/global/documents/159642
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