Saponins Esculeosides B-1 and B-2 in Italian Canned Tomatoes
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- Manabe Hideyuki
- Faculty of Pharmaceutical Sciences, Sojo University
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- Fujiwara Yukio
- Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University
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- Ikeda Tsuyoshi
- Faculty of Pharmaceutical Sciences, Sojo University
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- Ono Masateru
- School of Agriculture, Tokai University
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- Murakami Kotaro
- Faculty of Pharmaceutical Sciences, Sojo University
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- Zhou Jian-Rong
- Faculty of Pharmaceutical Sciences, Sojo University
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- Yokomizo Kazumi
- Faculty of Pharmaceutical Sciences, Sojo University
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- Nohara Toshihiro
- Faculty of Pharmaceutical Sciences, Sojo University
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Abstract
Italian canned tomatoes contain the tomato glycosides esculeosides B-1 (1, 0.0052%) and B-2 (2, 0.0068%) without esculeoside A. Herein, the structure of esculeoside B-1 (1) is characterized to be 3-O-β-lycotetraosyl (5S,22R,23S,25S)-22,26-epimino-16β,23-epoxy-3β,23,27-trihydroxycholestane 27-O-β-D-glucopyranoside. We hypothesized that these substances might be derived from esculeoside A when the cans are prepared with treatment in boiling water. To confirm that hypothesis, we refluxed esculeoside A with water for 6.5 h, providing esculeosides B-1 (1) and B-2 (2) in yields of 25.8% and 31.0%, respectively.
Journal
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- Chemical and Pharmaceutical Bulletin
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Chemical and Pharmaceutical Bulletin 61 (7), 764-767, 2013
The Pharmaceutical Society of Japan
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Details 詳細情報について
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- CRID
- 1390282679154251520
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- NII Article ID
- 130003360799
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- NII Book ID
- AA00602100
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- COI
- 1:STN:280:DC%2BC3sjmsV2jtg%3D%3D
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- ISSN
- 13475223
- 00092363
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- NDL BIB ID
- 024644929
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- PubMed
- 23812400
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
