Each Excel file contains a brief description of the data. Water holding capacity (WHC) of Agar, alginate and carrageenan hydrogels in 3 concentrations 0.5%, 0.75% and 1% and Agar, alginate and carrageenan nanoemulsion (NE)-filled hydrogels was determined by centrifugation method. In brief, approximately 9 g of hydrogels and NE-filled hydrogels were formed in situ within 10 mL centrifuge tubes over 24 h at 4 °C. Subsequently, the tubes underwent centrifugation at 10000×g using the Sigma 3K15 centrifuge (Sigma Laborzentrifugen GmbH, Osterode, Germany) at 25 °C for 30 min, and the released water was drained.The values are reported as percentages (%). For measuring synersis, Agar, alginate and carrageenan hydrogels and NE-filled hydrogels in 3 concentration 0.5%, 0.75% and 1% were prepared in petri dishes and, after formation, were left for 24 hours at 25 °C. The weight was measured both before and after the 24-hour period to calculate syneresis. The values are reported as percentages (%). Texture profile analysis (TPA) of the Agar, alginate and carrageenan hydrogels and NE-filled hydrogels in 3 concentration 0.5%, 0.75% and 1% were evaluated using a texture analyser (Stable Micro Systems model TA-XT2) equipped with a cylindrical aluminium plunger (3.6 cm diameter) and a load cell of 30 N. Hydrogels and NE-filled hydrogels were subjected to a two-cycle compression in each compression cycle the sample was compressed at 50% of deformation ratio at pre-test speed, test speed and post-test speed of 1 mm/s. Tiger force was 5 g, tiger distance of 2 mm and time interval of two bites was set at 50 s. The mechanical parameters obtained from the force-time curves were hardness (N/cm2), cohesiveness, gumminess (N), adhesiveness and elasticity. Raman spectroscopy is a non-destructive analytical technique permits the characterization of materials in terms of their chemical composition, also providing structural information. Raman spectra of β-carotene, corn oil, NE as well as NE-filled hydrogels were obtained using RAMAN NRS-7100 from Jasco. For all measurements, the excitation wavelength was set at 532 nm. Data were acquired from each sample using a microscope equipped with an objective with a magnification x 100. Data acquisition and processing was carried out using the LabSpec 6 software.