著者
石井 営次 乾 美智子 高橋 美帆 塚本 晶子 林 茂美 三浦 和美
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.35, no.5, pp.228-232, 1991-09-10 (Released:2010-03-11)
参考文献数
3
被引用文献数
1

Bacterial contamination in tableware sponge polishers for kitchen use was examined and means for sterilization were sought. Among 36 polishers including 4 for use at places of business, a colony forming unit for each polisher measured by standard plate count, exceeded 109 in 21 polishers, and 108 in 32 polishers, of which a number of coliforms in MPN was more than 106 in each polisher. Although no Salmonella could be detected, Staphylococcus aureus and Bacillus cereus were found in 9 and 15 polishers, respectively. Polishers treated with boiling water every day and which dried easily showed a low number of bacterium, from 102 to 103. Bacterial contaminated polishers were sterilized by boiling water for more than 30 seconds every day, but not by chemicals or disinfectant. Salmonella, S. aureus, and Escherichia coli were found capable of growing in polishers at 25°C.
著者
濱田 信夫
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.43, no.3, pp.89-96, 1999-05-30 (Released:2010-03-11)
参考文献数
18

Fungal and yeasty contamination in bathrooms was studied using the swabbing method. The average number of fungi was larger on the ceiling and upper parts of the wall than that of the floor and lower parts of the wall. In the upper parts of the bathroom, Cladosporium was the predominant fungi in both summer and winter, followed by Exophiala, Aureobasidium, Phoma and Acremonium. In the lower parts of the bathroom, Exophiala was predominant, and represented around 80% of all fungi. Rhodotorula was the predominant yeast in all parts of the bathroom. Cladosporium, more than Exophiala, Rhodotorula and others, seemed to affect the dirtiness of bathrooms. Additionally, the growth rate of each type of fungus on the walls of the bathroom were compared after cleaning. It was observed that the number of fungi after 2 months was less than half that of pre-cleaning.Ventilation was effective in reducing fungal and yeasty contamination. The effects of moisture on fungal contamination was more remarkable in the upper parts of the bathroom than in the lower parts, including the floor. The effects of cleaning were distinctly recognized on the floor, because the frequency of cleaning the floor is much higher than that of the upper parts of the bathroom.
著者
今井 長兵衛
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.51, no.4, pp.225-240, 2007 (Released:2007-08-07)
参考文献数
38

West Nile virus (WNV), St. Louis Encephalitis virus (SLEV) and Japanese Encephalitis virus (JEV) are closely related and all belong to the JEV antigen group of flaviviruses. An epidemic of WNV was first reported from the United States in 1999, where an SLEV epidemic had been observed since 1933 in central and southern regions. Recently, the probability of the spread of WNV to Japan has increased year by year. The present article first described the relationship between the WNV and SLEV epidemics in the United States in order to suggest the existence of a cross-immunity to WNV caused by SLEV infection in the American population. Secondly, the past and present status of JEV epidemics and JEV vaccination in Japan were explained in relation to the socio-economic changes after the Second World War. Finally, the article suggested that the level of cross-immunity to WNV caused by natural infection and vaccination with JEV in the Japanese population may not be high enough to prevent a WNV epidemic after the possible future spread of WNV to Japan.
著者
石川 篤志 岸 幹也 山上 圭吾
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.53, no.4, pp.257-260, 2009-10-30 (Released:2009-11-10)
参考文献数
20
被引用文献数
1

To evaluate the effect of natto and soybeans on postprandial blood glucose level, a crossover study was conducted in 12 healthy male volunteers.Subjects were given a control meal (white rice), a natto meal (white rice with natto), or a soybean meal (white rice with steamed soybeans), and blood glucose level in each group was measured before and 15, 30, 45, 60, 90, and 120 minutes after intake.After both the soybean and natto meals, the blood glucose level at 60 minutes after intake was significantly lower than after the control meal. However, only the natto meal, and not the soybean meal, significantly suppressed the rise in blood glucose level at 60 minutes compared to the control meal. Furthermore, the area under the glucose curve from 0 to 120 min after the natto meal was significantly smaller than for the control meal.These results suggest that natto is useful for the control of postprandial blood glucose level.
著者
石井 営次 瀬下 眞美 三戸 呂隆子 木下 京美
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.37, no.2, pp.61-66, 1993-03-10 (Released:2010-03-11)
参考文献数
3

Bacterial contamination was examined in sliced vegetables as one of the types of food, which was prepared from cabbage, lettuce, carrots, onions, cucumbers, tomatos, and/or others. The main component in the sliced vegetables was cabbage. Among 42 samples of the sliced vegetables purchased at retail stores, standerd plate counts (SPCs) of 32 samples were more than 106cfu/g, and coliform group numbers of 38 samples using the most probable number (MPN) were more than 103/g. Escherichia coli and Staphylococcus aureus were isolated from two and one samples, respectively, but other food poisoning bacteria were not. Vegetable juice was prepared from some vegetables purchased at vegetable shops, and SPC and coliform group number were examined. In the juice of cabbage, lettuce, carrots, onions, celery, green peppers, cucumbers, or tomatos, SPCs were 102 to 106cfu/ml and coliform group numbers in MPN did not exceed 103/ml except for carrots (1.1×105). When food poisoning bacteria, isolated in Osaka, were inoculated in each vegetable juice, and survival or growth of the bacteria was examined. Salmonella sp., S. aureus, Yersinia enterocolitica, B. cereus, and E. coli survive in each juice made from cabbage, lettuce, carrots, or onions. S. aureus and E. coli could not grow in onion juice, and Salmonella sp. could not in lettuce and celery juices. Lemon juice used for addition on sliced vegetables was useful for decreasing the bacterial number in sliced vegetables.
著者
夏原 由博
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.40, no.1, pp.13-21, 1996-01-30 (Released:2010-03-11)
参考文献数
46
被引用文献数
1
著者
高倉 耕一
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.52, no.4, pp.221-228, 2008-07-30 (Released:2008-08-08)
参考文献数
13

In recent years, computer hardware has become more powerful and more popularized. Software for specialized data processing, such as statistical analysis, is also becoming common as a result of the open-source movement. These changes have made some novel statistical techniques more accessible. Typical examples are the randomized test and the Monte Carlo method, which are now used frequently by some skilled researchers. Among average users, however, the use of such techniques is not common. In the present paper, I present these techniques and the R codes necessary to estimate parameter distribution with the Monte Carlo method.
著者
濱田 信夫
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.51, no.5, pp.295-303, 2007 (Released:2007-10-09)
参考文献数
14

The fungal flora in the house dust of dwellings was examined in both the winter and summer of 2006. The xerophilic fungi, Aspergillus restrictus and Wallemia, which grow in house dust, were markedly abundant as well as Cladosporium and Penicillium. The average numbers of fungi detected were larger in tatami dust than in carpet dust or in flooring dust. Floor materials, for example whether the carpet was wool or synthetic, affected the fungal contamination of house dust. Fungal contamination was found to be less on upper floors, in houses located on flat land than on the first floor or on sloping land. More fungal contamination was detected in older dwellings of 26 years or more than in newer ones of 25 years or less. The fungal count in the house dust of rooms with daily use of air-conditioning in summer and heating in winter was about half of that in rooms rarely heated or air-conditioned. Factors removing moisture from the room atmosphere and floor were thought to reduce the fungal contamination of house dust.
著者
船坂 邦弘 鶴保 謙四郎 森 義明
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.50, no.5, pp.333-337, 2006 (Released:2006-10-19)
参考文献数
8
被引用文献数
2

In June 2005, media coverage of the health effects of asbestos used at factories on nearby residents developed into an “asbestos panic” in Japan. Asbestos is a natural mineral fiber and is widely used as a material for industrial and construction purposes because of its significant tensile strength, heat resistance and thermal insulating properties. Japan′s Ministry of Health, Labor and Welfare has proposed a new regulation for the prevention of asbestos scattering due to building demolition. Here, we provide a brief overview of asbestos from the viewpoints of present and future problems.
著者
今井 長兵衛
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.51, no.2, pp.66-84, 2007 (Released:2007-04-07)
参考文献数
32

This article explains the strategy and methodology for promoting citizen participation in the activities of biological diversity surveys basing on the experiences of the Environmental Resources Mapping Project in Osaka City. The project was carried out in fiscal years 1991-1997 by the municipal government with 1200 citizen participants; the author worked as the organizer of citizen volunteers throughout the project period. Encouragement of participants was attained by offering them opportunities for participation in group activities, by giving them intensive and systematic training through instructor group leaders and survey manuals, by providing them with opportunities to report the results of their own surveys, by publishing their findings in mass-media such as television and newspapers, and by issuing annual reports on the project. With active participation, the project was able to publish four colored environmental resource maps, one course guidebook, and two mesh data books as final reports on its activity. Since the completion of the project, the network of citizen volunteers, one of the most valuable fruits of the project, has been maintained by shifting the work base to the Eco Museum of Osaka, a center for environmental education founded in 1997.
著者
中間 昭彦 山田 浩一
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.41, no.5, pp.183-188, 1997-09-30 (Released:2010-03-11)
参考文献数
9

We determined the amount of ascorbic acid (AsA) in 31 commercial non-alcoholic beverages sold in Osaka City, Japan. AsA was analyzed by high performance liquid chromatography (HPLC) using a LiCrosorb 100 NH2 column and 3mM ammonium phosphate/acetonitrile (30:70) as mobile phase. Concentrated-restored fruit juices contained 210-470μg/ml AsA, more than natural fruit juices (110-140μg/ml). The content of AsA in tea drinks was similar to that in concentrated-restored fruit juices at 290-360μg/ml. Furthermore, beverages prepared from natural materials such as orange juices or green tea showed differing AsA content between different product lots.To estimate the difference between AsA analytical methods, we used 5 AsA analytical methods, HPLC, the indophenol titrimetric method, the dinitrophenylhydrazine method, the fluorometric method, and the enzymic method. In green tea, the enzymic method showed the minimum reading, which was 80% of that found using the indophenol titrimetric method, which showed the maximum. The AsA content of concentrated-restored fruit juices varied widely according to method. The dinitrophenylhydrazine and enzymic methods showed significant difference from other methods; in particular, the enzymic method showed 1.8-2.9 -fold higher AsA content than HPLC. The AsA content of natural fruit juices showed no appreciable difference between methods. These findings suggest that the enzymic method cannot determine accurately the AsA content of concentrated-restored fruit juices. Whether a fruit juice is concentrated-restored or natural can probably be distinguished by the difference in AsA content using the enzymic and HPLC methods.
著者
野田 勉 清水 充
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.44, no.1, pp.13-19, 2000-01-30 (Released:2010-03-11)
参考文献数
20
被引用文献数
5

An antimicrobial agent, hiba oil, was examined for contact allergenicity in a modified guinea pig maximization test. Hiba oil produced weak contact allergenicity by intradermal injection dose at ≥5, 000ppm and challenge doses at 5, 000ppm. Even at the highest intradermal dose of hiba oil (50, 000ppm), only half of the animals showed a positive skin reaction to the challenge patch of hiba oil at 5, 000ppm. Two antimicrobial components of hiba oil, hinokitiol and carvacrol, were not the critical substances of allergenicity, as these chemicals failed to cause positive skin reaction in a cross-sensitization test.
著者
山崎 祥史 福田 真一 白石 浩荘 泉 康雄
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.50, no.2, pp.84-88, 2006 (Released:2006-04-07)
参考文献数
21

Eighty kcal of rice crackers containing indigestible dextrin (4.6g/21g) were administered as test samples to 27 healthy adults (18 males and 9 females) and the postprandial rise of blood glucose levels were compared with placebo samples (80kcal, 17.8g) not containing indigestible dextrin. As a result, test samples showed lower blood glucose levels (p <0.05) at 15 and 30 minutes after intake compared to placebo samples.This result suggests that rice crackers containing indigestible dextrin are useful for primary prevention of diabetes.
著者
今井 長兵衛
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.48, no.6, pp.341-352, 2004 (Released:2005-01-27)
参考文献数
21
被引用文献数
3

The possibility of West Nile virus (WNV) activity in Japan is discussed in reference to WNV ecology and epidemics in the USA, where the virus appeared in 1999 and rapidly expanded its distribution area with increasing numbers of patients. The arrival of WNV in Japan would occur through three transporting systems: WNV-infected mosquitoes carried mostly by plane; import of infected pet birds; and migration of infected wild birds. Once in Japan, the spread and symptoms of WNV disease among human beings and horses would be more serious and drastic in Japan than in the USA. The reasoning for this is that the level of cross-immunity of Japanese against WNV induced by the smaller wave of recent epidemics of the closely related Japanese encephalitis virus must be lower than that of Americans due to the larger wave of recent epidemics of the closely related Saint Louis encephalitis virus. Public participation as well as governmental efforts would be a vital necessity to prevent the arrival of WNV and to control epidemics after arrival. As countermeasures, surveys of three subjects should be conducted first: vector mosquitoes inside planes from WNV epidemic regions, including the USA; dead birds infected with WNV; and vector mosquito breeding sites. Second, reduction of breeding sites and/or application of insect growth regulator (or insecticides) should be carried out in and around dwellings and workplaces. Third, citizens should be encouraged to protect themselves from mosquito bites.
著者
今井 長兵衛
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.50, no.6, pp.483-500, 2006 (Released:2006-12-07)
参考文献数
86

Papers were reviewed in order to reveal the developmental process of the environmental education concept from the Stockholm Declaration (1972) to the United Nations Decade of Education for Sustainable Development (2005-2014) and to clarify the principle of education for sustainable society as a current phase of environmental education. Among the many issues, the author emphasizes the need for education on local environmental pollution, awareness of the assailant versus sufferer relationships in every environmental problem, participation in action and movements against global environmental crisis, and global partnerships between assailants, mostly in ‘developed’ countries, and sufferers, mainly in ‘developing’ countries, against economic globalization. The urgent goals of education for sustainable society are considered to be the eradication of poverty, diseases, violence, discrimination, and social injustice in ‘developing’ countries, most of which have been caused by globalization and the ‘developed’ countries. The conventional environmental ethic is considered as a combination of the inter-generation ethic and the space ship ethic. The former says that the present generation is the assailant of the future generation while the latter states that all people on earth are equally crew members of the earth as a space ship. These two ethics ignore the existence of assailants and sufferers in both present and future generations and place the sufferers in the present generation under a false charge as assailants of the future generation. A new environmental ethic should be established on the basis of the inter-generation ethic and an alternative to the space ship ethic, namely the inter-area ethic that declares the existence of assailants and sufferers in both present and future generations.