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Dive into the research topics where Koji Sakurai is active.

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Featured researches published by Koji Sakurai.


Phytochemistry | 1997

Structure and biosynthesis of trans-polyisoprene from Eucommia ulmoides

Jitladda Tangpakdee; Yasuyuki Tanaka; Kenichi Shiba; Seiichi Kawahara; Koji Sakurai; Yoshihisa Suzuki

Abstract The structure of trans -polyisoprene from both bark and leaves of Eucommia ulmoides was analysed by 1 H NMR and 13 C NMR. Both spectra showed characteristic signals of the dimethylallyl-group, as well as terminal ester and diphosphate groups. The degree of polymerization estimated from the intensity ratio of signals from the internal trans -units and the dimethylallyl-group was in fair agreement with that determined by osmometry. The trans -polyisoprene from E. ulmoides is a high molecular-weight homologue of solanesol, consisting of the dimethylallyl-group, 60–3000 internal trans -units, and a terminal aliphatic fatty acid ester-group or a diphosphate group, aligned in that order.


Journal of The Japanese Society for Food Science and Technology-nippon Shokuhin Kagaku Kogaku Kaishi | 2008

Investigation of Chewing Gum Adhesiveness with Instrumental Measurement and Study of Relationship between Measurement and Questionnaire Results

Norimasa Sakanoshita; Koji Sakurai; Taisuke Nakamura; Yukie Yanagisawa


Journal of The Japanese Society for Food Science and Technology-nippon Shokuhin Kagaku Kogaku Kaishi | 2007

Effect of Fat Type and Content on Palatability of Chocolate

Fumiko Iida; Mamiko Chida; Machiko Kasai; Norimasa Sakanoshita; Koji Sakurai; Tatsuya Kamiwaki


Journal of The Japanese Society for Food Science and Technology-nippon Shokuhin Kagaku Kogaku Kaishi | 2006

Study on evaluation of adhesive properties of chewing gum (studies on rheology of chewing gum. Part I)

Norimasa Sakanoshita; Koji Sakurai; Kiyoyasu Tsukada; Masayoshi Uzawa; Yukie Yanagisawa


Archive | 2014

Anti-androgenic agent, sebum secretion blocker, hair growth stimulant, and food or beverage

Yushi Kodama; Hiroaki Higuchi; Atsushi Narise; Koji Sakurai


Journal of The Japanese Society for Food Science and Technology-nippon Shokuhin Kagaku Kogaku Kaishi | 2015

Enzymatic Deodorization by the Extract of Rubus Suavissimus with Peroxidase

Naho Takagaki; Yushi Kodama; Daiki Morita; Takumi Tokumoto; Koji Sakurai; Tsutomu Arakawa; Kenji Osawa


Archive | 2011

Food product having a tongue coating-eliminating effect

Hiroaki Higuchi; Atsushi Narise; Koji Sakurai


Archive | 2010

Agent antiandrogène, bloqueur de la sécrétion de sébum, stimulateur de la pousse des cheveux et aliment ou boisson

Yushi Kodama; 悠史 児玉; Hiroaki Higuchi; 裕明 樋口; Atsushi Narise; 成瀬 敦; Koji Sakurai; 桜井 孝治


Archive | 2010

Agent antibacterien contenant de l alcool de sucre pour l inhibition de la proliferation de bacteries provoquant des maladies parodontaires

Yushi Kodama; 児玉悠史; Hiroaki Higuchi; 樋口裕明; Atsushi Narise; 成瀬敦; Koji Sakurai; 桜井孝治


Journal of The Japanese Society for Food Science and Technology-nippon Shokuhin Kagaku Kogaku Kaishi | 2009

Comparison of chewing gum adhesiveness and sensory evaluations between panels of young and elderly individuals.

Norimasa Sakanoshita; Koji Sakurai; Taisuke Nakamura; Yoriko Ebata; Yukie Yanagisawa

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Seiichi Kawahara

Tokyo University of Agriculture and Technology

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Jitladda Tangpakdee

Tokyo University of Agriculture and Technology

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Kenichi Shiba

Tokyo University of Agriculture and Technology

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Yasuyuki Tanaka

Tokyo University of Agriculture and Technology

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Yoshihisa Suzuki

Tokyo University of Agriculture and Technology

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