Journal of Home Economics of Japan
Online ISSN : 1882-0352
Print ISSN : 0913-5227
ISSN-L : 0913-5227
Volume 52, Issue 8
Displaying 1-11 of 11 articles from this issue
  • Naomi OMI, Noriko TSUKAHARA, Ikuko EZAWA
    2001 Volume 52 Issue 8 Pages 689-698
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
    To investigate the effect of milk on bone metabolism in growing rats, the bone mineral density (BMD), bone strength and intestinal calcium (Ca) absorption were examined. It has recently become possible to accurately and precisely measure BMD in growing animals with low bone mass by a bone densitometer. In this study, the change in BMD in growing young rats was therefore evaluated by this method.
    Male and female Sprague-Dawley (SD) rats at 3 weeks of age were divided into male and female control diet groups (0.3% Ca from CaCO3) and milk diet groups (0.3% Ca from milk). The experimental period lasted for 4 weeks. The change in BMD and the intestinal Ca absorption were determined in experiment A (Exp. A), and BMD of the extracted bone, mechanical bone strength, and weight and mineral contents of the bone were measured in experiment B (Exp. B).
    In Exp. A, BMD in the lumbar spine and tibia of the milk diet groups increased significantly compared to those of the control values. The intestinal Ca absorption of the rats in the milk diet groups was also significantly greater than that of the control rats. In addition, in Exp. B, BMD values, mechanical bone strength, bone weight, and Ca and P contents in the bone of the rats in the milk diet groups were also significantly greater than the control values.
    These findings suggest that milk promoted bone metabolism during the growing period and confirm the effectiveness of measuring BMD of low bone mass by a bone densitometer to evaluated metabolism in vivo.
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  • Kimio NISHIMURA, Masahiro GOTO, Shuryo NAKAI, Shin-ichiro KAWASE, Yasu ...
    2001 Volume 52 Issue 8 Pages 699-708
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
    When white sauce, water and chicken meat are packed in a plastic film bag and heated at 90°C, sauce separation is induced by proteins released from the chicken meat. This sauce separation could be prevented by heating at 75°C, although the amount of protein released from the chicken meat during heating at 75°C hardly differed from that released when heated at 90°C. A thermograph of the chicken extract including soluble muscle proteins obtained by differential scanning calorimetry suggested that the extrapolated final temperature (Tf) of heat denaturation was about 85°C. This indicates that denaturation of the soluble muscle proteins was in progress at 75°C. An analysis by sodium dodecyl sulfate (SDS) -polyacrylamide gel electrophoresis (PAGE) and the results of measuring storage and loss moduli for aggregates of the chicken extract obtained by heating at 75°C and 90°C indicated that protein polymers in the chicken extract that had been formed by heating at 90°C were larger and more rigid than those formed at 75°C. These results suggest that polymers formed with a large and firm structure by the protein released from chicken meat during 90°C heating participated in the sauce separation.
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  • Michiyo NAKANO, Hiroko ICHIMUNE, Tsuneo KAJIURA, Shinobu FUJITA, Donna ...
    2001 Volume 52 Issue 8 Pages 709-721
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
    In order to assure a supply of safe and comfortable detached houses, it is necessary to encourage the owners of detached houses to become more actively involved in house maintenance by helping understand the true condition of their houses. The purpose of this study was to clarify 1) the state of the pre-purchase home inspection system which has been quickly gaining popularity in Australia in recent years, and 2) the role played by this system in promoting house maintenance activities by homeowners. The research method consisted of analyzing the results of studies and surveys made from many angles in and around Brisbane, Australia, and the relevant reference materials. We concluded that this inspection system provides 1) a means for disclosing information that supports the prospective buyer's decision-making process, 2) an opportunity to clarify any defects in the house, and 3) important reference materials for working out a post-purchase maintenance and management plan. Therefore it is a system that protects the buyers of used houses and promotes suitable post-purchase home maintenance.
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  • Tadakatsu OHNAKA
    2001 Volume 52 Issue 8 Pages 723-727
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
    Airborne fungus and bacteria concentrations were measured in the living rooms of 25 households with indoor pets (PET) and 35 households without indoor pets (NOPET) in summer and autumn. Room temperature and humidity were also measured at the same time. A questionnaire asked the residents about the length of time the room was ventilated per day, how frequently the room was cleaned, daily duration of air conditioning, and so on. Room temperature ranged from 28 to 30°C in summer and from 17 to 20°C in autumn. Air humidity was 50 to 70% in both seasons. High concentrations of airborne fungus (0.07-0.09 CFU/l) and bacteria (0.27-0.35 CPU/l) were found in PET compared with NOPET households (0.02-0.05 CPU/l in fungus, 0.13-0.15 CPU/l in bacteria). However, high concentrations of fungus and bacteria were not always observed in all the PET houses; rather, high concentrations were frequently found in PET houses that were cleaned infrequently or in which the rooms were less well ventilated than in other PET or NOPET houses.
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  • Hiroshi MURATA, Sin YAMAZAKI, Masanobu MAEDA, Akinori HISASHIGE
    2001 Volume 52 Issue 8 Pages 729-736
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
    The prefectural welfare budget for the aged continues to increase in the growing aging society, and the rate of increase is expected to be accelerated by the nursing insurance system which was introduced in April 2000. Then, it should be pointed out that no significant study has yet been made on how much the newly introduced system affects the local economy. Taking up as the model case the prefectures of Tochigi, Kyoto and Fukuoka where the population ratio of the senior citizens is very close to the national average, we attempted to work out the economic effect of the nursing insurance system. As the basis of our estimate, the 1990 inter-industry relation table drawn up by the respective prefectures was referred to along with the market scales of the nursing service published by the Ministry of Health and Welfare for 2000 and 2010 respectively. The employment thereof was also estimated. Our estimate of the market scale of the nursing service for the year 2000 resulted 68.4 billion yen, 90.5 billion yen and 171 billion yen in Tochigi, Kyoto and Fukuoka respectively. The economic effect thereof is estimated to be respectively 51.3 billion yen, 80.1 billion yen and 178.7 billion, and the related employment to be produced would come to the level of 8, 900, 12, 600 and 25, 600 respectively, of which the number of people required for the nursing service was 5, 600, 7, 400 and 14, 000. The size of the nursing service market should increase by 35.7 billion yen, 53 billion yen and 96.7 billion yen from the year 2000 to the year 2010. The economic effect should be increased by 26.8 billion yen, 46.9 billion yen and 155.5 billion yen, and the employment including the area of the economic effect should grow by 4, 700, 7, 400 and 18, 100 respectively. The labor population required for the nursing service, i.e., the number of people engaged in the area of nursing service, is estimated to increase by 2, 900, 4, 300 and 7, 900 respectively.
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  • Naomi OMI
    2001 Volume 52 Issue 8 Pages 737-739
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
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  • Sigeo SAEGUSA
    2001 Volume 52 Issue 8 Pages 741-743
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
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  • [in Japanese]
    2001 Volume 52 Issue 8 Pages 745-747
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
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  • [in Japanese]
    2001 Volume 52 Issue 8 Pages 748-750
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
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  • Shizutoshi NAKAGAWA
    2001 Volume 52 Issue 8 Pages 751-756
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
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  • Mikio HARAGUCHI
    2001 Volume 52 Issue 8 Pages 757-764
    Published: August 15, 2001
    Released on J-STAGE: March 10, 2010
    JOURNAL FREE ACCESS
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