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Publication
Featured researches published by Yasuhiro Tamura.
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 2007
Maki Kobayashi; Ichiro Takano; Yasuhiro Tamura; Sanae Tomizawa; Yukinari Tateishi; Naoko Sakai; Kyoko Kamijo; Akihiro Ibe
Pesictide residues in 343 samples of domestic rice and 32 samples of imported rice purchased on the Tokyo market from April 1995 to March 2005 were investigated. Residues of eleven kinds of pesticides (including organophosphorus, organochlorine, carbamate, pyrethroid and organonitrogen pesticides and bromide) were detected at levels between trace and 1 ppm in 47 domestic rice samples. DDVP and bromide residues were detected at levels between 0.01 ppm and 5 ppm in 18 imported rice samples. For rice samples that were found to containing pesticides, the amounts of pesticide intake were calculated according to the daily intake of rice, and they were compared with the ADI values. Since residual pesticide levels were 17/10,000-2/5 of ADI, all the rice samples were considered to be safe for human consumption.
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 2018
Harunori Otani; Yasuhiro Tamura; Itoko Baba; Masaki Hayashi; Mihoko Morioka; Tetsuya Shindo; Tsuneo Hashimoto
An analytical method for PCBs in fishes using an accelerated solvent extractor (ASE) and GC-MS/MS was evaluated. After the extraction of ASE at 125℃ with n-hexane and clean-up with an AgNO3 silica gel/H2SO4 silica gel multilayer column, samples were analyzed by GC-MS/MS. This method was fast, effective and easy to operate. The limit of quantitation of the method was calculated to be 0.78 μg/kg for total PCBs. The recovery and the coefficient of variation of PCBs (n=5) from 6 fishes (Japanese sea perch, chub mackerel, yellowtail, salmon, pacific saury, and sardine) of total PCBs were 91-108% and 1-3%, respectively.
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 1998
Tsuneo Hashimoto; Toshihiro Nagayama; Maki Kobayashi; Nahoko Haneishi; Masako Ito; Yasuhiro Tamura; Toshio Tomomatsu
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 2007
Maki Kobayashi; Ichiro Takano; Yasuhiro Tamura; Sanae Tomizawa; Yukinari Tateishi; Naoko Sakai; Kyoko Kamijo; Akihiro Ibe; Toshihiro Nagayama
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 2002
Maki Kobayashi; Toshihiro Nagayama; Ichiro Takano; Yasuhiro Tamura; Naoko Kimura; Kyoko Kitayama; Kazuo Saito
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 1998
Yasuhiro Tamura; Toshihiro Nagayama; Maki Kobayashi; Tsuneo Hashimoto; Nahoko Haneishi; Masako Ito; Toshio Tomomatsu
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 2001
Maki Kobayashi; Toshihiro Nagayama; Ichiro Takano; Masako Ito; Yasuhiro Tamura; Yukinari Tateishi; Naoko Kimura; Kyoko Kitayama; Kazuo Yasuda; Kazuo Saito
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 2004
Sanae Tomizawa; Ichiro Takano; Maki Kobayashi; Yasuhiro Tamura; Yukinari Tateishi; Naoko Sakai; Kyoko Kitayama; Toshihiro Nagayama; Kunihiro Kamata; Kazuo Saito
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 2003
Naoko Kimura; Toshihiro Nagayama; Ichiro Takano; Maki Kobayashi; Yasuhiro Tamura; Yukinari Tateishi; Kyoko Kitayama; Kazuo Saito
Journal of The Food Hygienic Society of Japan (shokuhin Eiseigaku Zasshi) | 1999
Maki Kobayashi; Toshihiro Nagayama; Tsuneo Hashimoto; Nahoko Haneishi; Masako Ito; Yasuhiro Tamura; Chieko Takada; Kazuo Yasuda