IJCEA 2025 Vol.16(2): 106-110
doi: 10.18178/ijcea.2025.16.2.849
The Physical Properties and Antioxidant Activity of Sarcoplasmic Protein/Gelatin Film with Marigold Flowers Extract
Jirukkakul N. and Phoolkang A.
Department of Applied Science, Faculty of Interdisciplinary Studies, Khon Kaen University, Khon Kaen, Thailand
Email: pnatch@ kku.ac.th (J.N.); pareeya@kkumail.com (P.A.)
*Corresponding author
Manuscript received July 17, 2025; accepted October 20, 2025; published December 19, 2025
Abstract—The objectives of this research were to produce sarcoplasmic protein/gelatin films incorporating with marigold flower extract and investigate their physical and chemical properties. The sarcoplasmic protein/gelatin film expressed pale yellow and cloudy appearance. The marigold flowers extract increased redness, yellowness and darkness of films. All sarcoplasmic protein/gelatin films exhibited low moisture content and water vapor permeability. The solubility decreased with the addition of marigold flowers extract components due to their hydrophobic properties. The surface of the film with extract exhibited irregularities in the film structure due to the heterogeneity in the polymer matrix with non-disulfide bonds. Additionally, the cross-linking of the extract in the film contributes to good mechanical properties that enhanced tensile strength and elongation. Moreover, the DPPH scavenging rate of the film with 0.2% marigold flowers extract content increased more than 50%. Therefore, it can be applied in food preservation packaging for extending shelf life.
Keywords—film, gelatin, marigold flowers extract, sarcoplasmic protein
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Cite: Jirukkakul N. and Phoolkang A., "The Physical Properties and Antioxidant Activity of Sarcoplasmic Protein/Gelatin Film with Marigold Flowers Extract," International Journal of Chemical Engineering and Applications vol. 16, no. 2, pp. 106-110, 2025.
