Design experiments to detect and quantify soybean oil in extra virgin olive oil using portable Raman spectroscopy

Engraved Split-Ring Resonators as Potential Microwave Sensors for Olive Oil Quality Control

“…Initially, smoothing under a Gaussian filter with a kernel of five points (denoise at 5) was used, where cosmic rays were removed, and the background was removed using a baseline correction at the sixth-order polynomial function. Corresponding Raman spectra (Supporting Figure S2a) show patterns consistent with others previously reported. ,,, Finally, UV–vis absorption spectra were collected using a K-MAC SV2100 spectrometer in the wavelength range 300–900 nm; experimental details can be found elsewhere . Recorded spectra (Supporting Figure S3a) demonstrate that only VOO shows distinct peaks within the measured range.…”

“…Corresponding Raman spectra (Supporting Figure S2a) show patterns consistent with others previously reported. 18,20,64,65 Finally, UV−vis absorption spectra were collected using a K-MAC SV2100 spectrometer in the wavelength range 300− 900 nm; experimental details can be found elsewhere. 66 Recorded spectra (Supporting Figure S3a) demonstrate that only VOO shows distinct peaks within the measured range.…”

Trends in authentication of edible oils using vibrational spectroscopic techniques

“…Another example of portable technology involves assessing the authenticity of extra virgin olive oil using a portable Raman spectrometer, as demonstrated in a study by Barros. 113 The study involved collecting Raman spectra in the 1800–800 cm −1 region for both authentic extra virgin olive oil and samples adulterated with soybean oil. Regression models were developed using chemometric tools such as PLS and interval PLS (iPLS).…”