| Project/Area Number |
02680080
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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 | Seitoku Junior College of Nutrition |
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Principal Investigator |
GOCHO Hiromi Seitoku Junior College Food and Nutrition Lecturer of Nutrition, 食物栄養学科, 講師 (80114916)
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| Co-Investigator(Kenkyū-buntansha) |
SATO Miyuki Seitoku Junior College Food and Nutrition Assistant of Nutrition, 食物栄養学科, 助手
TUTUI Tomomi Seitoku Junior College Food and Nutrition Professor of Nutrition, 食物栄養学科, 教授 (20132079)
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| Project Period (FY) |
1990
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| Project Status |
Completed (Fiscal Year 1990)
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| Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1990: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | Inverse gas chromatography / Terpenoid / Retention volume / Heat of adsorption / 吸着熱 |
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| Research Abstract |
Inverse gas chromatography was used to determine retention volumes for various probes on wool. These probes were terpenoids : beta-pinene, ferandrene, limonene, linalool, citral and l-carvone, which were useful as raw materials for flavors and fragrances. These terpenoids had various functional groups, respectively.
The retention volumes(V_R) of all systems were linearly related with sample size. This fact indicated a weak interaction between wool yarns and probe molecules. The limiting retention volumes(V_R^O) increased with increasing the polarity of probes and strongly depended on the type of functional groups.
A plot of in Vg^O against 1/T(K), that is, a retention diagram showed a linearity over the whole variety of probes. The plot should be linear for a retention mechanism which dose not change over the temperature range applied. The slope of this straight segment is given by *Hi/R, where *Hi is the heat of adsorption of probe on the wool surface and R is the gas constant. Although the values of the limiting specific retention volume(Vg^O) varied slightly, the calculated values of the heat of adsorption(*Hi) were independent of its values for limonene/wool systems.
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