Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-24721
Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Porous coatings to control release rates of essential oils to generate an atmosphere with botanical actives
Authors: Hettmann, Kai
Monnard, Fabien W.
Melo Rodriguez, Gabriela
Hilty, Florentine M.
Yildirim, Selçuk
Schoelkopf, Joachim
et. al: No
DOI: 10.3390/ma15062155
10.21256/zhaw-24721
Published in: Materials
Volume(Issue): 15
Issue: 6
Page(s): 2155
Issue Date: 2022
Publisher / Ed. Institution: MDPI
ISSN: 1996-1944
Language: English
Subjects: Packaging; Active packaging; Antimicrobial; Contolled release; Evaporation; Layer; Linear driving force
Subject (DDC): 664: Food technology
Abstract: Essential oils have been used in diverse areas such as packaging, agriculture and cosmetics, for their antimicrobial and pesticide activity. The organic volatile compounds of the essential oils are involved in its activity. Controlling their release helps to prolong their functionality. In this study, a functionalized calcium carbonate porous coating was employed to control the release of thyme and rosemary oil in a confined space. The release rate was evaluated at 7 °C and 23 °C, gravimetrically. It was shown that the capillary effect of the porous coating slowed down the release of the volatiles into the headspace compared to the bulk essential oil. A linear drive force model was used to fit the obtained data from both essential oils. The model showed that rosemary reached the asymptotic mass loss equilibrium faster than thyme. This result can be explained by the diverse composition and concentration of monoterpenoids between the two essential oils. Temperature and degree of loading also played important roles in the desorption of the essential oils. It was observed that at high degrees of loading and temperatures the desorption of essential oils was higher. The above-described technology could be used for applications related to food preservation, pest control among others.
URI: https://digitalcollection.zhaw.ch/handle/11475/24721
Fulltext version: Published version
License (according to publishing contract): CC BY 4.0: Attribution 4.0 International
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Food and Beverage Innovation (ILGI)
Published as part of the ZHAW project: Calcium carbonate based active packaging
Appears in collections:Publikationen Life Sciences und Facility Management

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Hettmann, K., Monnard, F. W., Melo Rodriguez, G., Hilty, F. M., Yildirim, S., & Schoelkopf, J. (2022). Porous coatings to control release rates of essential oils to generate an atmosphere with botanical actives. Materials, 15(6), 2155. https://doi.org/10.3390/ma15062155
Hettmann, K. et al. (2022) ‘Porous coatings to control release rates of essential oils to generate an atmosphere with botanical actives’, Materials, 15(6), p. 2155. Available at: https://doi.org/10.3390/ma15062155.
K. Hettmann, F. W. Monnard, G. Melo Rodriguez, F. M. Hilty, S. Yildirim, and J. Schoelkopf, “Porous coatings to control release rates of essential oils to generate an atmosphere with botanical actives,” Materials, vol. 15, no. 6, p. 2155, 2022, doi: 10.3390/ma15062155.
HETTMANN, Kai, Fabien W. MONNARD, Gabriela MELO RODRIGUEZ, Florentine M. HILTY, Selçuk YILDIRIM und Joachim SCHOELKOPF, 2022. Porous coatings to control release rates of essential oils to generate an atmosphere with botanical actives. Materials. 2022. Bd. 15, Nr. 6, S. 2155. DOI 10.3390/ma15062155
Hettmann, Kai, Fabien W. Monnard, Gabriela Melo Rodriguez, Florentine M. Hilty, Selçuk Yildirim, and Joachim Schoelkopf. 2022. “Porous Coatings to Control Release Rates of Essential Oils to Generate an Atmosphere with Botanical Actives.” Materials 15 (6): 2155. https://doi.org/10.3390/ma15062155.
Hettmann, Kai, et al. “Porous Coatings to Control Release Rates of Essential Oils to Generate an Atmosphere with Botanical Actives.” Materials, vol. 15, no. 6, 2022, p. 2155, https://doi.org/10.3390/ma15062155.


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