著者

Naoshi KONDO Makoto KURAMOTO Hiroshi SHIMIZU Yuichi OGAWA Mitsutaka KURITA Takahisa NISHIZU Vui Kiong CHONG Kazuya YAMAMOTO

出版者

Asian Agricultural and Biological Engineering Association

雑誌

Engineering in Agriculture, Environment and Food (ISSN:18818366)

巻号頁・発行日

vol.2, no.2, pp.54-59, 2009 (Released:2009-04-04)

参考文献数

14

被引用文献数

2

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As basic research to develop a machine vision system to detect rotten mandarin orange, the extraction and identification of fluorescent substances contained in rotten parts of mandarin orange were conducted, and the excitation and fluorescence wavelengths of the substance were determined. Although it has been reported that damaged orange fruit skins are often fluoresced by UV light, it was suggested that fluorescent substances exist not only in the rotten parts of skins but also the normal parts of skins from this research. The fluorescent substances were extracted from 1kg of mandarin peel, and NMR analysis and mass spectrometry were conducted. From this experiment, it was found that the fluorescent substance was quite possibly heptamethylflavone and that the excitation and fluorescent wavelengths of one of the substances were 360 to 375nm and 530 to 550nm, respectively.