Adsorption Properties of Essential Oils on Polylactic Acid Microparticles of Different Sizes
The interaction between the polymer and the materials in contact with it affects its applicability. This can be particularly important in applications such as packaging or controlled drug delivery systems. Because of these interactions, the adsorption and diffusion properties of polylactic acid (<...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/19/6602 |
| _version_ | 1797478410164895744 |
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| author | Lilla Virág Róbert Bocsi Dóra Pethő |
| author_facet | Lilla Virág Róbert Bocsi Dóra Pethő |
| author_sort | Lilla Virág |
| collection | DOAJ |
| description | The interaction between the polymer and the materials in contact with it affects its applicability. This can be particularly important in applications such as packaging or controlled drug delivery systems. Because of these interactions, the adsorption and diffusion properties of polylactic acid (<i>PLA</i>) are important. The absorption capacity of different polylactic acid particles for different additives like essential oils (<i>Thymus vulgaris</i>, <i>Melissa officinalis</i>, and <i>Foeniculum vulgare</i> essential oils) was investigated depending on the concentration of the essential oil. The <i>PLA</i> microparticles were prepared by the solvent evaporation emulsification method. The prepared particles had a degree of crystallinity of 0.1% and 16.1%, respectively, according to the granules used. This affects the particles’ adsorption properties. The specific essential oil uptake of the more crystalline microparticles was on average 15% higher than that of the amorphous particles. The specific amount of essential oil adsorbed decreases with the decreasing concentration of essential oil in the solutions. We also investigated whether the amount of essential oil taken up was correlated with the solubility parameter of the essential oils. We concluded that the difference between the adsorption of the essential oils on the polymer was related to the essential oils’ Hansen solubility parameter. |
| first_indexed | 2024-03-09T21:32:32Z |
| format | Article |
| id | doaj.art-7dbd13b38b5343af84eb2b07a3d84865 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T21:32:32Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-7dbd13b38b5343af84eb2b07a3d848652023-11-23T20:53:36ZengMDPI AGMaterials1996-19442022-09-011519660210.3390/ma15196602Adsorption Properties of Essential Oils on Polylactic Acid Microparticles of Different SizesLilla Virág0Róbert Bocsi1Dóra Pethő2Research Centre for Biochemical, Environmental and Chemical Engineering, University of Pannonia, Egyetem u. 10, 8200 Veszprém, HungaryResearch Centre for Biochemical, Environmental and Chemical Engineering, University of Pannonia, Egyetem u. 10, 8200 Veszprém, HungaryResearch Centre for Biochemical, Environmental and Chemical Engineering, University of Pannonia, Egyetem u. 10, 8200 Veszprém, HungaryThe interaction between the polymer and the materials in contact with it affects its applicability. This can be particularly important in applications such as packaging or controlled drug delivery systems. Because of these interactions, the adsorption and diffusion properties of polylactic acid (<i>PLA</i>) are important. The absorption capacity of different polylactic acid particles for different additives like essential oils (<i>Thymus vulgaris</i>, <i>Melissa officinalis</i>, and <i>Foeniculum vulgare</i> essential oils) was investigated depending on the concentration of the essential oil. The <i>PLA</i> microparticles were prepared by the solvent evaporation emulsification method. The prepared particles had a degree of crystallinity of 0.1% and 16.1%, respectively, according to the granules used. This affects the particles’ adsorption properties. The specific essential oil uptake of the more crystalline microparticles was on average 15% higher than that of the amorphous particles. The specific amount of essential oil adsorbed decreases with the decreasing concentration of essential oil in the solutions. We also investigated whether the amount of essential oil taken up was correlated with the solubility parameter of the essential oils. We concluded that the difference between the adsorption of the essential oils on the polymer was related to the essential oils’ Hansen solubility parameter.https://www.mdpi.com/1996-1944/15/19/6602polylactic acid microparticlesHansen solubility parameteressential oil adsorption |
| spellingShingle | Lilla Virág Róbert Bocsi Dóra Pethő Adsorption Properties of Essential Oils on Polylactic Acid Microparticles of Different Sizes Materials polylactic acid microparticles Hansen solubility parameter essential oil adsorption |
| title | Adsorption Properties of Essential Oils on Polylactic Acid Microparticles of Different Sizes |
| title_full | Adsorption Properties of Essential Oils on Polylactic Acid Microparticles of Different Sizes |
| title_fullStr | Adsorption Properties of Essential Oils on Polylactic Acid Microparticles of Different Sizes |
| title_full_unstemmed | Adsorption Properties of Essential Oils on Polylactic Acid Microparticles of Different Sizes |
| title_short | Adsorption Properties of Essential Oils on Polylactic Acid Microparticles of Different Sizes |
| title_sort | adsorption properties of essential oils on polylactic acid microparticles of different sizes |
| topic | polylactic acid microparticles Hansen solubility parameter essential oil adsorption |
| url | https://www.mdpi.com/1996-1944/15/19/6602 |
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