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Effect of potassium salts on the structure of γ-cyclodextrin MOF and the encapsulation properties with thymol

Background: Thymol is a natural essential oil with strong volatility, low solubility, poor dispersion, strong irritation, and an unpleasant smell, which often requires appropriate porous materials to encapsulate thymol during the application process. However, the encapsulation efficiency of thymol i...

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Main Authors: Xiaodan, Pan, Ahmed Junejo, Shahid, Chin, Ping Tan, Bin, Zhang, Xiong, Fu, Qiang, Huang
Format: Article
Published: Wiley 2022
Online Access:http://psasir.upm.edu.my/id/eprint/101132/
https://onlinelibrary.wiley.com/doi/abs/10.1002/jsfa.12004
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spelling my.upm.eprints.1011322023-05-24T04:04:41Z http://psasir.upm.edu.my/id/eprint/101132/ Effect of potassium salts on the structure of γ-cyclodextrin MOF and the encapsulation properties with thymol Xiaodan, Pan Ahmed Junejo, Shahid Chin, Ping Tan Bin, Zhang Xiong, Fu Qiang, Huang Background: Thymol is a natural essential oil with strong volatility, low solubility, poor dispersion, strong irritation, and an unpleasant smell, which often requires appropriate porous materials to encapsulate thymol during the application process. However, the encapsulation efficiency of thymol in inclusion complexes is low, and new methods of encapsulation need to be developed. In the present study, the encapsulation capacity, storage stability, and antibacterial activity of thymol were investigated using γ-cyclodextrin (γ-CD) metal–organic frameworks (MOFs) by cocrystallization and high-temperature adsorption methods. The effect of different potassium salts (i.e. KOH, KCl, and KAc) on the structure and complexation of γ-CD-MOFs was also analyzed. Results: Compared with γ-CD, the thymol encapsulation capacity of γ-CD-MOFs was increased by two- to three-fold, with the encapsulation content following the order: KAc-γ-CD-MOF (293.8 mg g–1) > KOH-γ-CD-MOF (287.7 mg g–1) > KCl-γ-CD-MOF (249.3 mg g–1). The anions in the solution participate in the coordination and influence the symmetry relationship between atoms and ions. This explains the differences in both the three-dimensional γ-CD-MOF structure and the thymol encapsulation amount, as well as the high storage stability of thymol. Conclusion: The in vitro release kinetics and antibacterial experiments showed that the inclusion complexes prepared by γ-CD-MOFs had higher stability, sustainability, and antibacterial activity, which suggests that it is an excellent complex material for industrial and agricultural applications. Wiley 2022-05-12 Article PeerReviewed Xiaodan, Pan and Ahmed Junejo, Shahid and Chin, Ping Tan and Bin, Zhang and Xiong, Fu and Qiang, Huang (2022) Effect of potassium salts on the structure of γ-cyclodextrin MOF and the encapsulation properties with thymol. Journal of the Science of Food and Agriculture, 102 (14). 6387 - 6396. ISSN 0022-5142; ESSN: 1097-0010 https://onlinelibrary.wiley.com/doi/abs/10.1002/jsfa.12004 10.1002/jsfa.12004
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Background: Thymol is a natural essential oil with strong volatility, low solubility, poor dispersion, strong irritation, and an unpleasant smell, which often requires appropriate porous materials to encapsulate thymol during the application process. However, the encapsulation efficiency of thymol in inclusion complexes is low, and new methods of encapsulation need to be developed. In the present study, the encapsulation capacity, storage stability, and antibacterial activity of thymol were investigated using γ-cyclodextrin (γ-CD) metal–organic frameworks (MOFs) by cocrystallization and high-temperature adsorption methods. The effect of different potassium salts (i.e. KOH, KCl, and KAc) on the structure and complexation of γ-CD-MOFs was also analyzed. Results: Compared with γ-CD, the thymol encapsulation capacity of γ-CD-MOFs was increased by two- to three-fold, with the encapsulation content following the order: KAc-γ-CD-MOF (293.8 mg g–1) > KOH-γ-CD-MOF (287.7 mg g–1) > KCl-γ-CD-MOF (249.3 mg g–1). The anions in the solution participate in the coordination and influence the symmetry relationship between atoms and ions. This explains the differences in both the three-dimensional γ-CD-MOF structure and the thymol encapsulation amount, as well as the high storage stability of thymol. Conclusion: The in vitro release kinetics and antibacterial experiments showed that the inclusion complexes prepared by γ-CD-MOFs had higher stability, sustainability, and antibacterial activity, which suggests that it is an excellent complex material for industrial and agricultural applications.
format Article
author Xiaodan, Pan
Ahmed Junejo, Shahid
Chin, Ping Tan
Bin, Zhang
Xiong, Fu
Qiang, Huang
spellingShingle Xiaodan, Pan
Ahmed Junejo, Shahid
Chin, Ping Tan
Bin, Zhang
Xiong, Fu
Qiang, Huang
Effect of potassium salts on the structure of γ-cyclodextrin MOF and the encapsulation properties with thymol
author_facet Xiaodan, Pan
Ahmed Junejo, Shahid
Chin, Ping Tan
Bin, Zhang
Xiong, Fu
Qiang, Huang
author_sort Xiaodan, Pan
title Effect of potassium salts on the structure of γ-cyclodextrin MOF and the encapsulation properties with thymol
title_short Effect of potassium salts on the structure of γ-cyclodextrin MOF and the encapsulation properties with thymol
title_full Effect of potassium salts on the structure of γ-cyclodextrin MOF and the encapsulation properties with thymol
title_fullStr Effect of potassium salts on the structure of γ-cyclodextrin MOF and the encapsulation properties with thymol
title_full_unstemmed Effect of potassium salts on the structure of γ-cyclodextrin MOF and the encapsulation properties with thymol
title_sort effect of potassium salts on the structure of γ-cyclodextrin mof and the encapsulation properties with thymol
publisher Wiley
publishDate 2022
url http://psasir.upm.edu.my/id/eprint/101132/
https://onlinelibrary.wiley.com/doi/abs/10.1002/jsfa.12004
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score 13.211869

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