Proceedings of the Korean Society of Near Infrared Spectroscopy Conference (한국근적외분광분석학회:학술대회논문집)
- 2001.06a
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- Pages.1526-1526
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- 2001
The Near-Infrared Imaging Spectroscopy to Visualize the Distribution of Sugar Content in the Flesh of a Melon
- Tsuta, Mizuki (The University of Tokyo) ;
- Sugiyama, Junichi (National Food Research Institute) ;
- Sagara, Yasuyuki (The University of Tokyo)
- Published : 2001.06.01
Abstract
To improve the accuracy of sweetness sensor in automated sorting operations, it is necessary to clarify unevenness of the sugar content distribution within fruits. And it is expected that the technique to evaluate the content distribution in fruits contribute to the development of the near-infrared (NIR) imaging spectroscopy. Sugiyama (1999) had succeeded to visualize the distribution of the sugar content on the surface of a half-cut green fresh melon. However, this method cannot be applied to red flesh melons because it depends on information of the absorption band of chlorophyll (676 nm), which is affected by the color of the fresh. The objective of this study was to develop the universal visualization method depends on the absorption band of sugar, which can be applied to various kinds of melons and other fruits. The relationship between the sugar contents and absorption spectra of both green and red fresh melons were investigated by using a NIR spectrometer to determine the absorption band of sugar. The combination of 2
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