Evaluation of the structure and storage stability of emulsions stabilized with native and modified diluted alkali-soluble pectin (DASP)
Description
This study investigated the structure–function relationship of native and enzymatically modified diluted alkali-soluble pectin (DASP) and its impact on the stability of oil-in-water emulsions during storage. The work focused on understanding how enzymatic modification of RG-I-rich pectin fractions influences molecular architecture, rheological behaviour, interfacial properties, and emulsion stability under different pH conditions. Native and modified DASP fractions were characterized using compositional analysis, spectroscopic techniques, rheological measurements, and emulsion stability assessment combining macroscopic observations and microscopy. The dataset contains raw experimental data supporting physicochemical characterization of DASP fractions and evaluation of emulsion stability, including creaming behaviour, rheology, FTIR spectroscopy, and structural analysis. The folder entitled “Creaming index (%)” contains raw data files (.xlsx) used to calculate creaming index values during storage experiments. The datasets include direct measurements performed using a caliper. The folder entitled “DM (%) DA (%)” contains raw analytical data (.xlsx) used for determination of degree of methylation (DM) and degree of acetylation (DA). The files include calibration curves for methanol and acetic acid, as well as integrated peak areas corresponding to analysed samples. The folder entitled “FTIR” contains raw Fourier-transform infrared spectroscopy datasets, including unprocessed spectra (wavelength and absorbance values) collected in experimental replicates for both native and enzymatically modified DASP samples. The folder entitled “Microscopic pictures” contains a set of original microscopy images (.JPG) acquired for emulsions on each day of the storage test. The images are organised according to pH conditions. The folder entitled “Monosaccharide composition, UA content” contains Microsoft Excel files (.xlsx) presenting raw compositional data, including quantified values of individual monosaccharides and uronic acids obtained in experimental replicates. The folder entitled “Rheology” contains raw rheological datasets exported directly from the rheometer, including original instrument export files (.txt) and Microsoft Excel files (.xlsx). The datasets include viscosity measurements of emulsions collected during a 28-day storage study, separated according to pH conditions (pH 2.5 and pH 6.0). In addition, the folder contains flow curve data for pectin solutions as well as viscosity measurements for both pectin solutions and corresponding oil-in-water emulsions. These files provide complete raw datasets used for rheological analysis.
Files
Institutions
- Lublin University of TechnologyLublin, Lublin
- Institute of Agrophysics, Polish Academy of SciencesLublin, Lublin