Evaluation of FT-Raman and FTIR-ATR spectroscopy for the quality evaluation of <i>Lavandula</i> spp. Honey

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