Journal of Home Economics of Japan
Online ISSN : 1882-0352
Print ISSN : 0913-5227
ISSN-L : 0913-5227
Volume 70 , Issue 6
Showing 1-7 articles out of 7 articles from the selected issue
  • Akihiro FUJIMOTO, Haruna TOKURA, Miyuki MORITA
    2019 Volume 70 Issue 6 Pages 339-345
    Published: 2019
    Released: July 17, 2019

      Dye decoloration with crude soybean peroxidase (SPO) extracted from inedible soybean residue was examined. The effect of pH on the decoloration rate of Orange I, Orange II, and Orange G was investigated. The results revealed that the maximum decoloration rate constant of Orange I was pH7.0, whereas the decoloration reaction of Orange II and Orange G fell in the range of pH4.0–11.0.

      The decoloration of Orange I with crude SPO in the presence of an activator was examined. p-Coumaric acid was most effective for enhancing the decoloration rate of Orange I, and the optimum p-coumaric acid concentration was 5.0×10-5 M.

      Finally, the transfer of dissolved Orange I to nylon fabric was examined at pH7.0 and 20℃ with SPO and hydrogen peroxide in the presence of p-coumaric acid. The color difference of undyed nylon fabric treated with SPO was lower than that treated with sodium percarbonate (pH11.5, 20℃). Therefore, crude SPO was more effective than sodium percarbonate for inhibiting migration.

    Download PDF (1737K)
  • Toya SUCHIN
    2019 Volume 70 Issue 6 Pages 346-360
    Published: 2019
    Released: July 17, 2019

      Hui Cym of Ewenki Banner, Hulunbuir City, is a region of grassland where herdsmen make a living by raising cows, sheep and horses. Over 80% of the families are Ewenki. They have two dwellings each in the city and a pastoral area with a baishing and grazing space for livestock.

      According to the iconography analysis of baishing, the house is divided into a living room, a kitchen and a bedroom on the south side, and an entrance which opens to a kitchen for cooking and eating on the north side. The living room is also used as a bedroom for guests, a room for children to play in, or a dining room. Later, another house with a kitchen, bedroom and corridor is always added onto the north side of the bashing. People build one more room on the north side of the second house or on the east side of the original house for use as a storehouse or garage.

      There are four kinds of heaters: hanji, hucyan, jyoha and nounchi. Almost all of the families use hucyan and half of the families also use hanji heaters. The newer the house is, the less common the hanji becomes. Jyoha is used for heating up the hanji and hucyan and for cooking. However, people are using nounchi as a heater recently.

    Download PDF (1455K)