Scientific Papers

Anti-skin Aging Activities of Sideritis scardica and 3 Flavonoids With an Uncommon 8-Hydroxyl Moiety

【2022】   Fumiaki Sato1), Chin Piow Wong2), Kaito Furuya1), Chikako Kuzu1), Ryousuke Kimura1), Tomoha Udo1), Haruno Honda2), Jinwei Yang2)    1) Laboratory of Analytical Pathophysiology, Hoshi University 2) Tokiwa Phytochemical Co., Ltd.   Natural Product Communications17(5) 1-10 (2022)

• 2022-05-09

Is 18α-Glycyrrhizin a real natural product? Improved preparation of 18α-Glycyrrhizin from 18β-Glycyrrhizin as a positive standard for HPLC analysis of licorice extracts

【2022】  

• 2022-01-28

The effect of ingesting of foods containing Laurus nobilis leaf extract（LAURESH^®） on oral environment in healthy subjects —A randomized, double—blind, placebo—controlled parallel—group comparison study—

【2021】 Tomoko Kuniyoshi1), Yukiko Kobayashi1), Haruno Honda1), Chin Piow Wong1), Toui Abe2), Jinwei Yang1), Masahiko Horiuchi3) 1) Tokiwa Phytochemical Co., Ltd.2) ORTHOMEDICO Inc.3) Medical Corporation Yuseikai, Horiuchi Dental Clinic Jpn Pharmacol Ther　49 (11) 1913-24 (2021)

• 2021-11-29

The functions of Kaempferia parciflora extract SIRTMAX^® and Kaempferia parciflora-derived polymethoxyflavonoid PURESIRTMAX^® through SIRT1 activation

【2021】   Haruno HONDA, Jinwei YANG    Tokiwa Phytochemical Co. Ltd.   Journal of Japanese Society for Medical Use of Functional FoodsVol.15 No.2 (2021)

• 2021-10-12

All-Trans Retinoic Acid Exhibits Antiviral Effect against SARS-CoV-2 by Inhibiting 3CLpro Activity

【2021】 Takeshi Morita 1, Kei Miyakawa 1, Sundararaj Stanleyraj Jeremiah 1, Yutaro Yamaoka 1,2, Mitsuru Sada 3, Tomoko Kuniyoshi 4, Jinwei Yang 4, Hirokazu Kimura 5, Akihide Ryo 1 1 Department of Microbiology, Yokohama City University Graduate School of Medicine2...

• 2021-09-10

The activation mechanism of longevity gene product SIRT1 by black turmeric polyphenol

【2021】   Mimin Zhang1 , Jin Tatsuzaki2 , Koji Nagata1   1 Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo2 Tokiwa Phytochemical Co. Ltd.   BIOSCIENCE & INDUSTRYVol.79 No.5 (2021)

• 2021-09-10

New custom “Gogyo_Shukan” with Japanese-Chinese plant complex extract

【2021】 Jin Tatsuzaki1 1 Tokiwa Phytochemical Co. Ltd. AGRICULTURAL BIOTECHNOLOGY (2021)No.65（Vol.5/No.9）

• 2021-07-26

Cinnamon bark : Demonstration to develop products using cinnamaldehyde

【2021】 Takao Namiki1 1 Department of Japanese-Oriental (Kampo) Medicine, Chiba University Hospital AGRICULTURAL BIOTECHNOLOGY (2021)No.65（Vol.5/No.9）Production of the high quality herbs and sixth industrialization of Kampo

• 2021-07-26

Development and application of screening method for inhibitors against SARS-CoV-2

【2021】 Takeshi Morita1 , Kei Miyakawa1 , Yutaro Yamaoka1,2, Tomoko Kuniyoshi3 , Akihide Ryo1  1 Yokohama City University2 Kanto Chemical Co.3 Tokiwa Phytochemical Co. Ltd. FRANGRANCE JOURNAL (2021)No.492（Vol.49/No.6）

• 2021-06-15

Quercetin 3,5,7,3’,4’-pentamethyl ether from Kaempferia parviflora directly and effectively activates human SIRT1

【2021】   Mimin Zhang1 , Peng Lu1 , Tohru Terada2,3, Miaomiao Sui1 , Haruka Furuta1,4, Kilico Iida1,5, Yukie Katayama1 , Yi Lu1 , Ken Okamoto1 , Michio Suzuki1 , Tomiko Asakura1, Kentaro Shimizu2,3, Fumihiko Hakuno1,4, Shin-Ichiro Takahashi1,4, Norimoto Shimada6, Jinwei...

• 2021-02-19