Geranyl 6-O-α-L-Arabinopyranosyl-β-D-glucopyranoside Isolated as an Aroma Precursor from Leaves of a Green Tea Cultivar

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Abstract

A new glycosidic aroma precursor was isolated from green tea leaves (Camellia sinensis var. sinensis cv. Vabukita) along with the known primeverosides of cis-linalool 3, 6-oxide, linalool and geraniol. These glycosides were separated by chromatographic isolation on Amberlite XAD-2, ODS flash chromatography, and finally HPLC. The chemical structure of the new unknown glycoside was confirmed as geranyl 6-O-α-L-arabinopyranosyl-β-D-glucopyranoside (geranyl β-vicianoside) by spectrometric analyses and by an enzymatic hydrolysis with glycosidase followed by GC-MS and HPLC anslyses. Moreover the vicianoside was hydrolyzed with acetone powder obtained from fresh tea leaves to generate the same compounds, suggesting this glycoside to be a tea aroma precursor. © 1996, Taylor & Francis Group, LLC. All rights reserved.

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Nishikitani, M., Kubota, K., Kobayashi, A., & Sugawara, F. (1996). Geranyl 6-O-α-L-Arabinopyranosyl-β-D-glucopyranoside Isolated as an Aroma Precursor from Leaves of a Green Tea Cultivar. Bioscience, Biotechnology and Biochemistry, 60(5), 929–931. https://doi.org/10.1271/bbb.60.929

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