著者
板屋 民子 飯島 正雄 斉藤 貢一 正木 宏幸 青木 敦子 斎藤 章暢 安藤 佳代子 徳丸 雅一 坂東 正明
出版者
Japanese Society of Food Microbiology
雑誌
食品と微生物 (ISSN:09108637)
巻号頁・発行日
vol.8, no.4, pp.203-212, 1992-03-20 (Released:2010-07-12)
参考文献数
10

A large number of Photobacterium phosphoreum (6-7 log/g) was isolated from “tamagoyaki” (a kind of nigirisushi; Japanese food) that had been lumineferous in the dark. The isolates were smeared on the surfaces of sliced “tamagoyakis”. After the incubation at 10°C for 48 hr or at 25°C for 24 hr, the surfaces became luminous. It was indicated that this abnormality of “tamagoyaki” was caused by contamination with and multiplication by P. phosphoreum.On the surface of “tamagoyaki”, the bacteria in an early growth phase in such a small number as 4 log/g luminesced. Furthermore, the luminescence was observed when pieces of squid, boiled prawn or “yakichikuwa” (a kind of food made of fishes) with the bacteria were incubated, but not observed on pickled Japanese gizzard shad. Nevertheless the the bacteria grew on the surface of tuna, but no luminescence was observed on it.The bacteria produced a small amount of histamine on squid and tuna (less than 250μg/g), and their ability to putrefy food seemed to be low.The opitmum concentration of sodium chloride for growth of the bacteria in a medium was 3%, but they grew in food containing sodium chloride less than 0.5%. When sodium chloride in the medium was replaced by potassium chloride, calcium chloride, magnesium chloride, ammonium chloride or sodium phosphate, the bacteria were still able to grow but unable to grow when replaced by potassium phosphate or sucrose. The bacteria metabolized arginine by arginine decarboxylase but not by arginine dehydrolase.
著者
斎藤 章暢 徳丸 雅一 青木 敦子 安藤 佳代子 正木 宏幸 板屋 民子 丸山 務
出版者
日本食品微生物学会
雑誌
日本食品微生物学会雑誌 (ISSN:13408267)
巻号頁・発行日
vol.11, no.1, pp.29-33, 1994

<I>Listeria monocytogenes</I> (<I>L. m</I>. ) in shredded cheese was examined for its growth behavior during cold storage and cooking. During storage at 5°C, the concentration after inoculation decreased up to day 20 and thereafter increased. On day 77, the concentration was recovered to almost the same level as that at the time of inoculation, in shredded cheese inoculated with 10<SUP>4</SUP> or 10<SUP>6</SUP>/g <I>L.m</I>. and increased by 1-2 orders in shredded cheese inoculated with 10<SUP>1</SUP>/g <I>L .m</I>. . Also during storage at 10°, the inoculated <I>L.m</I>. decreased up to day 20 and thereafter increased, each bacterial concentration increased by 1-4 orders. Organoleptically, fungigenesis occurred from days 20 and 15 at 5° and 10°, respectively. The number of bacteria surviving in the pizza inoculated with 10<SUP>6</SUP>/g <I>L.m</I>. was 3.6-23/100 g after heating at 200°C for 5 min, while heating at 250°C for 5 min caused the death of all the inoculated bacteria, that is 10<SUP>6</SUP>/g. The change of the temperature at the center of the pizza while cooking tended to decrease with the increases in the temperature of storage and in the volume of ingredients, and these changes were also macroscopically recognizable.<BR>The above findings suggested that <I>L. m</I>. in shredded cheese dose not proliferate during the allowable period of storage before consumption and becomes extinct with general methods of cooking.
著者
藤田 紀昭 安藤 佳代子 兒玉 友
出版者
日本福祉大学スポーツ科学部
雑誌
日本福祉大学スポーツ科学論集 = The Journal of Sport Sciences, Nihon Fukushi University (ISSN:24338117)
巻号頁・発行日
no.3, pp.11-20, 2020-03-31

The purpose of this study is t clarify the level of the recognition of the words related to the Paralympics and sports for persons with disabilities. Furthermore, after getting the Paralympic bid, how the recognition of these words has changed is clarified. Questionnaire surveys on the Internet for civilians were conducted in 2014, 2016 and 2018. The number of respondents in each survey was 2,066 people. The contents of the questions are about recognition of 11 words referring to the Paralympics; Olympics, Paralympics, Deaflympics, Special Olympics, Wheelchair Tennis, Wheelchair Basketball, Boccia, Para-Badminton, Classifier and Guide Runner. The purpose of the Paralympics and the Core Values of Paralympics are asked in the survey in 2018 only. In the survey of 2018, the rate of the people who answered "I know" are as follows; Olympics 97.6%, Paralympics 96.3%, Deaflympics 3.5%, Special Olympics 3.9%, Wheelchair Tennis 66.5%, Wheelchair Basketball 70.4%, Boccia 19.7%, Para-Badminton 17.2%, Classifier 0.6%, Guide Runner 15.0%, The purpose of Paralympics 5.7%, Core Values of Paralympics 3.8%. The recognition of the name of the Para-Sports are higher in relative elder people. People who has acquaintanceswith disabilities and people who live in Kanto district shows higher rate of recognition of these words. However, there are not significant differences of recognition of these words between male and female. In comparison with an investigation of 2014, Boccia had the biggest growth rate of the recognition of approximately10 times, the next largest increase was Para-Badminton with approximately 3 times.