Classification of Honey Powder Composition by FTIR Spectroscopy Coupled with Chemometric Analysis

Abstract

Fourier transform infrared spectroscopy (FTIR) in connection with chemometric analysis were used as a fast and direct approach to classify spray dried honey powder compositions in terms of honey content, the type of diluent (water or skim milk), and carrier (maltodextrin or skim milk powder) used for the preparation of feed solutions before spray drying. Eleven variants of honey powders containing different amounts of honey, the type of carrier, and the diluent were investigated and compared to pure honey and carrier materials. Chemometric discrimination of samples was achieved by principal component analysis (PCA), hierarchical clustering analysis (HCA), linear discriminant analysis (LDA), and partial least squares-discriminant analysis (PLS-DA) modelling procedures performed on the FTIR preprocessed spectral data for the fingerprint region (1800–750 cm−1) and the extended region (3600–750 cm−1). As a result, it was noticed that the type of carrier is a significant factor during the classification of different samples of powdered multifloral honey. PCA divided the samples based on the type of carrier, and additionally among maltodextrin-honey powders it was possible to distinguish the type of diluent. The result obtained by PCA-LDA and PLS-DA scores yielded a clear separation between four classes of samples and showed a very good discrimination between the different honey powder with a 100.0% correct overall classification rate of the samples.

Development of a method based on ATR‐FTIR spectroscopy to detect maple syrup adulterated with added syrups

“…Many studies have combined FTIR with chemometric methods, for instance Matwijczuk et al 41 . applied FTIR with chemometrics including PCA to determine similarities and differentiate between dragonhead oil stored at different conditions, and Matwijczuk et al 42 . classified spray‐dried honey powder compositions using this approach.…”

Is it Possible to Produce Carrier-Free Fruit and Vegetable Powders by Spray Drying?

“…In this research, a highly acceptable result (60.9%) was noted for purple carrot juice concentrate powder (PC/DASD) with no additional carrier, as a result of decreased drying temperature and stickiness, possibly due to the application of dehumidified air. Dehumidified air-assisted spray drying has also been recently applied for honey [Matwijczuk et al, 2022] and sour cherry juice concentrate [Barańska et al, 2023]. For this type of materials, it also showed significant improvement in carrier content reduction (from 50% to 30% solids) but not its complete elimination.…”

The Visibility of Changes in the Antioxidant Compound Profiles of Strawberry and Raspberry Fruits Subjected to Different Storage Conditions Using ATR-FTIR and Chemometrics

“…Principal components analysis (PCA) was performed in order to obtain an overview of the similarities and differences between all the studied berry extracts [ 15 , 16 ]. Therefore, we investigated the relationship between the antioxidant activity, content of bioactive compounds, ozonation time and different storage methods (refrigerated storage) for two different cultivars of raspberries and strawberries.…”

“…Infrared techniques provide valuable, quick, and non-destructive means of examining changes in important molecules and structures within unaltered food samples [ 11 ]. Recently, many studies have paid particular attention to the possibility of measuring the quality, chemical composition and authentication of various food products, using FTIR spectroscopy coupled with chemometric analysis [ 12 , 13 , 14 , 15 , 16 ]. The interest in this method is essentially due to the rapidity of the method, the possibility of determining several quality traits simultaneously and the ease of implementation.…”