作者
Ewa Sikorska, Igor V Khmelinskii, Marek Sikorski, Francesco Caponio, Maria T Bilancia, Antonella Pasqualone, Tommaso Gomes
发表日期
2008/1
期刊
International journal of food science & technology
卷号
43
期号
1
页码范围
52-61
出版商
Blackwell Publishing Ltd
简介
The present study demonstrates the use of fluorescence spectroscopy for monitoring changes in virgin olive oil during storage. Total luminescence and synchronous scanning fluorescence spectroscopy techniques were tested with the purpose to check their ability to monitor changes occurring in olive oil during storage in different conditions: in clear and green glass bottles exposed to light, and in darkness. Total luminescence spectra of the initial oil samples in n‐hexane solutions exhibited intense peaks, one with a maximum appearing at 320 nm in emission and 290 nm in excitation, attributed to tocopherols, and another appearing at 670 nm in emission and 405 nm in excitation, belonging to the pigments of the chlorophyll group. The intensity of these emissions decreased during storage depending on the storage conditions. Additional bands appeared in oils exposed to light in the intermediate range of …
引用总数
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学术搜索中的文章
E Sikorska, IV Khmelinskii, M Sikorski, F Caponio… - International journal of food science & technology, 2008