| Project/Area Number |
06808003
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
家政学
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| Research Institution | Hiroshima Women' s University |
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Principal Investigator |
MASUYAMA Etsuko Hiroshima Women' s Univ., Human Life and Enviromental Science, Assistant, 生活科学部, 助手 (10084162)
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| Co-Investigator(Kenkyū-buntansha) |
KUSANO Toshihisa Hiroshima Women' s Univ.Human Life and Enviromental Science, Professor, 生活科学部, 教授 (00006082)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1995: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1994: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Shell of Oyster / Inhibitory Action of Bacteria / Freshness / Calsium / Cilia of Gills / Ciliary Movement / Fresh Food / Physiological Properties / 養殖カキ / 抗菌剤 / 牡蠣殻 / 鮮度判定 / 鰓繊毛能 / 牡蠣殻形成物質 / 養殖マガキ / 防菌剤 / 鮮度判定試験 / 殻形成粘液物質 / 自浄作用能 |
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| Research Abstract |
A secretion of oyster shell was collected from braked shell about center of gill which had a high activity of ciliary movement. It was white material and contained mainly calcium carbonate. In this study, it was used as safe antiseptics in order to hold freshness of shucked oysters. When shucked oysters were dipped for 15 min into 0.05% (w/v) of the secretion in an artificial sea water, inhibitory effects against the growth of food-borne bacteria were revealed. By analysis of absorbance at 250 nm in the supernatant of suspension, it is considered that the nucleic acids of bacteria were flowed out in order to break down cell membrane of bacteria. Moreover a simple spectroscopic method based on ciliary movement of oyster gill was developed for evaluating the freshness of oysters as raw food.
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