2-O-(.BETA.-L-arabinopyranosyl)-myo-inositol as a main constituent of tea (Camellia sinensis).

Sakata, Kanzo; YAMAUCHI, Harumi; Yagi, Akihito; Ina, Kazuo; PÁRKÁNYI, László; CLARDY, Jon

doi:10.1271/bbb1961.53.2975

Agricultural and Biological Chemistry

1989

DOI: 10.1271/bbb1961.53.2975

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2-O-(.BETA.-L-arabinopyranosyl)-myo-inositol as a main constituent of tea (Camellia sinensis).

Kanzo Sakata¹,

Harumi YAMAUCHI²,

Akihito Yagi³

et al.

Abstract: A new main tea constituent, 2-0-(/?-L-arabinopyranosyl)-/Mj0-inositol (1, ca. 0.8 % of a Japanese green tea) was characterized by 13C-NMRspectroscopy. The inositol glycoside (1) has been found not only in all the tea extracts so far examined but also in the homogenateof Camellia sinensis var. sinensis ("Yabukita cultivar"), suggesting its physiological importance in carbohydrate metabolism in the tea plant.

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Characteristic fragmentation patterns of trimethylsilyl and trimethylsilyl-oxime derivatives of plant disaccharides as obtained by gas chromatography coupled to ion-trap mass spectrometry

Boldizsár

Füzfai

Molnár-Perl

2011

Journal of Chromatography A

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The characteristic fragmentation pattern of six reducing and two non reducing type disaccharides-(neohesperidose, acuminose, sambubiose, rutinose, vicianose, primverose, and two arabinosyl-inositols) has been described. These saccharides have not been previously identified by on-line chromatographic techniques. Unambiguous specific characteristics of the TMS (oxime)s such as mass distribution, syn/anti oximes ratios and elution order proved to be associated with their reducing or non reducing character, with their aldosyl property and with the position of their O-glycosidic linkages. The practical utility of the mass fragmentation study of these rare disaccharides was demonstrated, at the first time, by the simultaneous, on-line identification and quantification of the acuminose, vicianose, primverose and arabinosyl-inositol contents of tea leaves, from green and black tea blends of Indian and Chinese origin.

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Characteristic fragmentation patterns of trimethylsilyl and trimethylsilyl-oxime derivatives of plant disaccharides as obtained by gas chromatography coupled to ion-trap mass spectrometry

Boldizsár

Füzfai

Molnár-Perl

2011

Journal of Chromatography A

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Determination of tea catechins

Dalluge

Nelson

2000

Journal of Chromatography A

167

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4(S)-(6-O-Caffeoyl-β-d-glucopyranosyl)-2-pentanone from young leaves of Photinia glabra

Kamiyama¹,

Watanabe²,

Sakata³

et al. 1993

Phytochemistry

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2-O-(.BETA.-L-arabinopyranosyl)-myo-inositol as a main constituent of tea (Camellia sinensis).

Cited by 5 publications

References 1 publication

Characteristic fragmentation patterns of trimethylsilyl and trimethylsilyl-oxime derivatives of plant disaccharides as obtained by gas chromatography coupled to ion-trap mass spectrometry

Characteristic fragmentation patterns of trimethylsilyl and trimethylsilyl-oxime derivatives of plant disaccharides as obtained by gas chromatography coupled to ion-trap mass spectrometry

Determination of tea catechins

4(S)-(6-O-Caffeoyl-β-d-glucopyranosyl)-2-pentanone from young leaves of Photinia glabra

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