Front Face Fluorescence Spectroscopy Combined with PLS-DA Allows to Monitor Chemical Changes of Edible Vegetable Oils during Storage at 60 °C,European Journal of Lipid Science and Technology

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Front Face Fluorescence Spectroscopy Combined with PLS-DA Allows to Monitor Chemical Changes of Edible Vegetable Oils during Storage at 60 °C
European Journal of Lipid Science and Technology ( IF 1.8 ) Pub Date : 2021-04-08 , DOI: 10.1002/ejlt.202000088
Eliot Patrick Botosoa _{1,

2,

3,

4,

5} , Christine Chèné ₆ , Romdhane Karoui _{1,

2,

3,

4,

5}

Affiliation

In this work, front-face fluorescence spectroscopy coupled with chemometric tools are used for the monitoring of rapeseed, sunflower, extra virgin olive, and linseed oil. The oil samples are heated at 60 °C for up to 15 days. The fluorescence excitation spectra are scanned in the range of 270–420 nm and 250–310 nm after emission wavelength set at 450 and 330 nm, respectively. The primary and secondary lipid oxidation products are also determined on the same oil samples. By applying partial least square discriminant analysis (PLS-DA) to each spectral collection obtained after emission set at 450 and 330 nm, clear discrimination of edible oil samples according to their botanical types, and sometimes aging, is obtained.

中文翻译：

正面荧光光谱结合 PLS-DA 可监测 60 °C 储存期间食用植物油的化学变化

在这项工作中，前端荧光光谱结合化学计量工具被用于监测油菜籽、向日葵、特级初榨橄榄和亚麻籽油。油样在 60 °C 下加热长达 15 天。在发射波长分别设置为 450 和 330 nm 后，在 270-420 nm 和 250-310 nm 范围内扫描荧光激发光谱。初级和次级脂质氧化产物也在相同的油样上测定。通过对发射设置为 450 和 330 nm 后获得的每个光谱集合应用偏最小二乘判别分析 (PLS-DA)，可以根据植物类型（有时甚至是老化）对食用油样品进行明确区分。

更新日期：2021-06-04

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