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Dive into the research topics where Yoshio Onoue is active.

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Featured researches published by Yoshio Onoue.


Journal of Chromatography A | 1983

Separation of tetrodotoxin and paralytic shellfish poisons by high-performance liquid chromatography with a fluorometric detection using o-phthalaldehyde

Yoshio Onoue; Tamao Noguchi; Yuji Nagashima; Kanehisa Hashimoto; Sekio Kanoh; Mitsuo Ito; Katsuo Tsukada

Tetrodotoxin (TTX) and a variety of paralytic shellfish poisons (PSPs) were extracted from toxic specimens of puffer and scallop, and quantitated by high-performance liquid chromatography with a fluorometric detection using o-phthalaldehyde. Fluorescence spectra for the TTX- and PSP-fluorophors in 0.05 M borate buffer (pH 10) showed maxima at 453 nm with 332-nm excitation. The fluorescence intensity per nM of TTX was found to be 3 and those of PSP to be 4-12. This fluorometric technique may be useful for the simultaneous quantitation of TTX and PSP in small volumes of toxin extracts.


Nippon Suisan Gakkaishi | 1990

Separation of Neurotoxins from Chattonella marina

Yoshio Onoue; Muhammad Shahidul Haq; Koji Nozawa


Nippon Suisan Gakkaishi | 1985

Toxicity of Cochlodinium Type '78 Yatsushiro Occurring in Yatsushiro Sea

Yoshio Onoue; Koji Nozawa; Kazumi Kumanda; Kenji Takeda; Takayuki Aramaki


Nippon Suisan Gakkaishi | 1981

Comparison of PSP compositions between toxic oysters and Protogonyaulax catenella from Senzaki Bay, Yamaguchi prefecture.

Yoshio Onoue; Tamao Noguchi; Jun-ichi Maruyama; Yoichi Ueda; Kanehisa Hashimoto; Takehiko Ikeda


Nippon Suisan Gakkaishi | 1980

Studies on paralytic shellfish poison from the oyster cultured in Senzaki Bay, Yamaguchi prefecture.

Yoshio Onoue; Tamao Noguchi; Kanehisa Hashimoto


Journal of Agricultural and Food Chemistry | 1983

Properties of two toxins newly isolated from oysters.

Yoshio Onoue; Tamao Noguchi; Jun-ichi Maruyama; Kanehisa Hashimoto; Haruo Seto


Archive | 1984

Tetrodotoxin Determination Methods

Yoshio Onoue; Tamao Noguchi; Kanehisa Hashimoto


Nippon Suisan Gakkaishi | 1983

Anatomical distribution and profiles of the toxins in highly PSP-infested scallops from Ofunato Bay during 1980-1981.

Jun-ichi Maruyama; Tamao Noguchi; Yoshio Onoue; Yochi Ueda; Kanehisa Hashimoto; Shunichi Kamimura


Nippon Suisan Gakkaishi | 1982

Occurrence of PSP-infested scallops in Ofunato Bay during 1976-1979 and investigation of responsible plankton.

Yoichi Ueda; Tamao Noguchi; Yoshio Onoue; Kinue Koyama; Michiko Kono; Kanehisa Hashimoto


Nippon Suisan Gakkaishi | 1981

New Toxins Separated from Oysters and Protogonyaulax catenella from Senzaki Bay, Yamaguchi Prefecture

Yoshio Onoue; Tamao Noguchi; Jun-ichi Maruyama; Kanehisa Hashimoto; Takehiko Ikeda

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Yuji Nagashima

Tokyo University of Marine Science and Technology

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