Evaluation of FT-Raman and FTIR-ATR spectroscopy for the quality evaluation of Lavandula spp. Honey
Subject
Vibrational spectroscopy Quality evaluation Lavender honey Chemical composition,
Date
2021-05-31T12:14:15Z 2021-05-31T12:14:15Z 2021
Description
Monofloral Lavandula spp. honey is very appreciated by consumers due to its characteristic and pleas antaroma and flavor. Given the economic importance of this ype of honey, it is important to develop a rapid and nonexpensive methodology that allows certifying its quality. In this context, this study aimed to compare the applicability and accuracy of FTIR-ATR and FT-Raman techniques for the quality evaluation of Lavandula spp. honey.
Calibration models, with PLS regression models, were
obtained for both methodologies concerning the following
parameters: total acidity, reducing sugars, hidroximetilfurfural (HMF), electrical conductivity, ash, proline content, diastase activity, apparent sucrose, total flavonoids,
and total phenolic contents. The calibration models had
high regression coefficients, r
2 (FTIR-ATR: 0.965–0.996;
FT-Raman: 0.983–0.999), high ratios of performance to
deviation, RPD (FTIR-ATR: 5.4–15.7; FT-Raman: 7.6–53.7),
and low root mean square errors (RMSEs; FTIR-ATR:
0.005–3.0; FT-Raman: 0.004–1.02). These results corroborate the potentiality of FTIR-ATR and FT-Raman for quality
evaluation and evaluation of the chemical properties of
Lavandula spp. honey even though FT-Raman technique
provided more accurate models. info:eu-repo/semantics/publishedVersion
