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Featured researches published by Kengo Kagei.


Phytochemistry | 1979

Ubiquinone content of eight plant species in cell culture

Makoto Ikeda; Kengo Kagei

Abstract Crystals of ubiquinone-10 were isolated from soyabean, peanut and Ruta cell cultures, while crystals of ubiquinone-9 were obtained from rice and wheat cell cultures. These crystals also contained lesser amounts of lower and higher homologues (ubiquinone-7 to 10). The ubiquinone content of eight higher plants in cell culture was determined. Ubiquinone-9 content of rice was 680 μg per g dry wt, and this was 3–6 times higher than that of the other plants.


Chemical & Pharmaceutical Bulletin | 1987

New triterpene saponins from Ilex pubescens

Kazuyuki Hidaka; Miyoko Ito; Yoko Matsuda; Hiroshi Kohda; Kazuo Yamasaki; Johji Yamahara; Takeshi Chisaka; Yoshiyuki Kawakami; Tadashi Sato; Kengo Kagei


Heterocycles | 1989

Artonins A and B, Two New Prenylflavonoes from the Root Bark of Artocarpus heterophyllus Lamk

Taro Nomura; Yoshion Hano; Miwa Aida; Mikako Shiina; Takatoshi Kawai; Hiroshi Ohe; Kengo Kagei


Archive | 1983

Treating complications of diabetes mellitus with hydantoin derivatives

Kouichiro Ueda; Satoru Tanaka; Toshinobu Kunii; Kengo Kagei; Tadashi Sato; Ono Hideki; Issei Ohtsuka; Mayumi Kawase; Toshiharu Ohgoh; Tsuneo Wakabayashi


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1978

[Studies on the constituents of the useful plants. VIII. The constituents of Lespedeza cuneata G. Don (author's transl)].

Shin Matsuura; Munekazu Iinuma; Ito E; Takami H; Kengo Kagei


Chemical & Pharmaceutical Bulletin | 1978

Synthetic Studies of the Flavone Derivatives. V. The Use of DDQ in the Dehydrogenation of Flavanones. (I).

Shin Matsuura; Munekazu Iinuma; Kimiko Ishikawa; Kengo Kagei


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1981

[Determination of curcumin content of turmeric by high performance liquid chromatography (author's transl)].

Naoki Asakawa; Masanori Tsuno; Teiichi Hattori; Masaaki Ueyama; Aishin Shinoda; Yasuo Miyake; Kengo Kagei


Chemical & Pharmaceutical Bulletin | 1989

Studies on the Constituents of Picrodendron baccatum Growing in Indonesia : Structure of a Nor-diterpene Lactone, Picrodendrin A

Taichi Ohmoto; Kazuo Koike; Hiroshi Fukuda; Katsuyoshi Mitsunaga; Kengo Kagei; Takatoshi Kawai; Tadashi Sato


Chemical & Pharmaceutical Bulletin | 1989

Studies on the Constitutents of Picrodendron baccatum Growing in Indonesia. II. : Structures of Two New Sesquiterpene Lactones, Picrodendrins C and D

Taichi Ohmoto; Kazuo Koike; Hiroshi Fukuda; Katsuyoshi Mitsunaga; Koreharu Ogata; Kengo Kagei


Chemical & Pharmaceutical Bulletin | 1985

Indonesian Medicinal Plants. I. New Furanoditerpenes from Arcangelisia flava MERR. (1)

Toshinobu Kunii; Kengo Kagei; Yoshiyuki Kawakami; Yasushi Nagai; Yukuo Nezu; Tadashi Sato

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