Kazuaki Kamata, Jin Tatsuzaki, Tsutomu Ishikawa, Ryoko Arai, Takashi Hakamatsuka, Nahoko Uchiyama. HPLC analysis of ammonium glycyrrhizate listed in the European, United States, and Japanese Pharmacopoeias under reported and modified conditions: revision of the peak assignment for 18α-glycyrrhizin in the European and United States Pharmacopoeias. Journal of natural medicines. 2022
Kritamorn Jitrangsri, Kazuaki Kamata, Mana Akiba, Yoshie Yajiri, Masami Ishibashi, Jin Tatsuzaki, Tsutomu Ishikawa. 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. Journal of natural medicines. 2022. 76. 2. 367-378
Mimin Zhang, Peng Lu, Tohru Terada, Miaomiao Sui, Haruka Furuta, Kilico Iida, Yukie Katayama, Yi Lu, Ken Okamoto, Michio Suzuki, et al. Quercetin 3,5,7,3',4'-pentamethyl ether from Kaempferia parviflora directly and effectively activates human SIRT1. Communications biology. 2021. 4. 1. 209-209
Tingfu Liang, Takuya Miyakawa, Jinwei Yang, Tsutomu Ishikawa, Masaru Tanokura. Quantification of terpene trilactones in Ginkgo biloba with a 1H NMR method. Journal of natural medicines. 2018. 72. 3. 793-797
Jin Tatsuzaki, Tomohiko Ohwada, Yuko Otani, Reiko Inagi, Tsutomu Ishikawa. A simple and effective preparation of quercetin pentamethyl ether from quercetin. Beilstein journal of organic chemistry. 2018. 14. 3112-3121
Matsumoto Kohsaku, Kumamoto Takuya, Ishikawa Tsutomu. Preparation of Nα-Acetyl-Nε-3-(methylpyridinium)lysine (MP-lysine) as a Hapten of Antibody. Heterocycles. 2006. 67. 1. 361-367
