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| Type |
Poster Presentation |
| Area |
Life Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
LIFE.P-353 |
| Subject |
Thermochromic indicator for determination of optimal fruit taste
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| Authors |
Yong-Hoon Kim*, June Hyuck Park
National Institute of Agricultural Sciences, Korea
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| Abstract |
Thermochromic indicator exerting temperature-dependent color switching behavior has been applied to various industrial fields due to the easy detection, safety, and low cost. In line with consumer demands for healthier, safe, and high quality products, smart food-packaging technology has been developing such as fresh and ripeness indicators. Here, we introduce the naked-eye discernible indicator for informing the optimal intake temperature of a fruit. This attachable indicator is fabricated by a commercialized printing method which is able to adjust the visibility through applied ink thickness. At the thickness of 20 – 25 um, the temperature-dependent visibility is favorable. When a chilled fruit is naturally heated under the room temperature, the indicator attached on the surface of fruits shows the three-color switching behaviors, violet, red, and gray, in variation with temperature. The indicator displays the red color at the optimal fruit temperature for intake. The temperature difference between the sensor and the surface of fruit is below 1℃. Heat transfer process between atmosphere and fruit is investigated on the basis of Newton’s cooling law.
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| E-mail |
yhkim0420@korea.kr |
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123rd General Meeting of the KCS