イケダ ツヨシ   Ikeda Tsuyoshi
  池田 剛
   所属   崇城大学  薬学部 薬学科
   崇城大学大学院  薬学研究科 薬学専攻
   職種   教授
言語種別 英語
発行・発表の年月 2015
形態種別 原著論文
査読 査読有り
標題 Saponins, Esculeosides B-1 and B-2, in Tomato Juice and Sapogenol, Esculeogenin B1.
執筆形態 共著
掲載誌名 Chemical & pharmaceutical bulletin
掲載区分国外
巻・号・頁 63(10),pp.848-50
著者・共著者 Nohara Toshihiro, Fujiwara Yukio, Zhou Jian-Rong, Urata Jun, Ikeda Tsuyoshi, Murakami Kotaro, El-Aasr Mona, Ono Masateru
概要 It has been shown that commercial tomato juice packaged in 900 g plastic bottles contains rare, naturally occurring steroidal solanocapsine-type tomato glycosides in which the saponins consist of esculeosides B-1 (2) and B-2 (3) in 0.041% as major components lacking esculeoside A. We suggest that these saponins are derived from esculeoside A (1) when the juice in plastic bottles is prepared by treatment with boiling water, similar to the process used in preparing canned tomatoes. Herein, the obtained tomato saponins (2) and (3) provided sapogenols esculeogenin B1 (4) and B2 (5), respectively, by acid hydrolysis. The former was identical to esculeogenin B previously reported, and the latter was a new sapogenol characterized to be (5α,22S,23S,25S)-22,26-epimino-16β,23-epoxy-3β,23,27-trihydroxycholestane.
DOI 10.1248/cpb.c15-00449
ISSN 1347-5223
PMID 26423043