Collagen is a fibrous protein that generally is extracted from bovine hides. The use of this biopolymer in the production of biodegradable films results in a material with good mechanical properties, as tensile strength and elongation, however they are extremely soluble. Lanolin is a lipid extracted from sheep wool and it has been indicated for the healing of skin wounds due to its effect in the formation of a barrier that prevents the loss of the natural moisture of the deeper layers resulting in the increase of the speed of cellular regeneration. The objective of this study was to evaluate the influence of 2% and 5% lanolin addition on collagen films. The films properties analyzed were thickness, mechanical properties, water vapor barrier properties and solubility. The results showed that the addition of lanoline promoted changes in the films properties. The films with lanolin showed a higher thickness, we also observed an increase of 17% in water vapor permeability in the films added with 5% lanolin and reduction of elongation and tensile strength with this addition.The solubility of the films was reduced in 50% with the addition of lanolin 5%, this phenomenon is explained because lanolin is extremely hydrophobic. The films added of 2% of lanolin did not present significant differences in the parameters of water vapor permeability when compared to those produced just with collagen. Through the characterization of collagen films and collagen films with addition of 2% and 5% lanolin, we can observed the possibility of the use of these films in food packaging, among other applications, as active dressings.<br/>

Use of lanolin on collagen films

255th National Meeting (2018)

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