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Kou X, Su D, Pan F, Xu X, Meng Q, Ke Q. Molecular dynamics simulation techniques and their application to aroma compounds/cyclodextrin inclusion complexes: A review. Carbohydr Polym 2024; 324:121524. [PMID: 37985058 DOI: 10.1016/j.carbpol.2023.121524] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/16/2023] [Accepted: 10/22/2023] [Indexed: 11/22/2023]
Abstract
Homeostatic technologies play a crucial role in maintaining the quality and extending the service life of aroma compounds (ACs). Commercial cyclodextrins (CDs) are commonly used to form inclusion complexes (ICs) with ACs to enhance their solubility, stability, and morphology. The selection of suitable CDs and ACs is of paramount importance in this process. Molecular dynamics (MD) simulations provide an in-depth understanding of the interactions between ACs and CDs, aiding researchers in optimising the properties and effects of ICs. This review offers a systematic discussion of the application of MD simulations in ACs/CDs ICs, covering the establishment of the simulation process, parameter selection, model evaluation, and various application cases, along with their advantages and disadvantages. Additionally, this review summarises the major achievements and challenges of this method while identifying areas that require further exploration. These findings may contribute to a comprehensive understanding of the formation and stabilization mechanisms of ACs/CDs ICs and offer guidance for the selection and computational characterisation of CDs in the AC steady state.
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Affiliation(s)
- Xingran Kou
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, School of Perfume and Aroma Technology (Shanghai Research Institute of Fragrance & Flavour Industry), Shanghai Institute of Technology, Shanghai, China; Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, China
| | - Dongdong Su
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, School of Perfume and Aroma Technology (Shanghai Research Institute of Fragrance & Flavour Industry), Shanghai Institute of Technology, Shanghai, China
| | - Fei Pan
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
| | - Xiwei Xu
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, School of Perfume and Aroma Technology (Shanghai Research Institute of Fragrance & Flavour Industry), Shanghai Institute of Technology, Shanghai, China
| | - Qingran Meng
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, School of Perfume and Aroma Technology (Shanghai Research Institute of Fragrance & Flavour Industry), Shanghai Institute of Technology, Shanghai, China.
| | - Qinfei Ke
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, School of Perfume and Aroma Technology (Shanghai Research Institute of Fragrance & Flavour Industry), Shanghai Institute of Technology, Shanghai, China; Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, China.
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Kantardjiev A, Ivanov P. On the multivalency of large-ring cyclodextrins. Carbohydr Res 2023; 531:108876. [PMID: 37419007 DOI: 10.1016/j.carres.2023.108876] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/02/2023] [Accepted: 06/18/2023] [Indexed: 07/09/2023]
Abstract
The inclusion complexes of several large-ring cyclodextrins with a number of monovalent ligands (five or six adamantane molecules; CDn/mADA; n = 11, 12, 13, 14, 21, 26; m = 5 (for n = 11 to 14) or 6 (for n = 21, 26)) were examined with molecular dynamics simulations. The results demonstrate the high affinity of the LR-CDs to accommodate in their cavities this hydrophobic test particle. Most of the simulation time two guest molecules associate with the CD11 macrocycle. Two to four guest molecules are included in the cavities of CD12, CD13 and CD14 for the total of about 50% to 75% of the simulation time. Higher order associates of CD21 and CD26 with three to five adamantane substrates, comprise more than 40.0% of the snapshots taken from the simulation trajectories, and they still have remaining unoccupied binding sites that could accommodate even more adamantane molecules. Cluster analyses were performed with the k-mean and the bottom up agglomerative hierarchical methods. These LR-CDs, with theirs more than one docking sites are suitable candidates as multivalent receptors for specifically designed multivalent ligands.
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Affiliation(s)
- Alexander Kantardjiev
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, ul. Acad. G. Bonchev, bloc 9, 1113, Sofia, Bulgaria.
| | - Petko Ivanov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, ul. Acad. G. Bonchev, bloc 9, 1113, Sofia, Bulgaria.
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Cao C, Deng C, Hu J, Zhou Y. Formation and molecular dynamics simulation of inclusion complex of large-ring cyclodextrin and 4-terpineol. J Food Sci 2022; 87:4609-4621. [PMID: 36086891 DOI: 10.1111/1750-3841.16303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/22/2022] [Accepted: 08/02/2022] [Indexed: 12/01/2022]
Abstract
In the present study, the formation and structure of the inclusion compound of large-ring cyclodextrin and 4-terpineol were obtained through different experiments and molecular dynamics (MD) simulation. The analysis of FTIR, 1 H-NMR, and thermodynamic results confirmed the formation of clathrates. Analysis of molecular structure (root-mean-square deviation and radius of gyration), solubility, and interaction energy (Coul, H bond) based on MD simulations further clarified the nature of the clathrate and the conformational changes caused by guest molecules as well as inclusion complexes process trends. The inclusion complex reportedly has a new crystal structure with improved thermal stability. PRACTICAL APPLICATION: This is the first work to demonstrate the complex formation between 4-terpineol and large-ring cyclodextrin by molecular dynamics simulation. Molecular dynamics simulation confirmed the formation of inclusion complexes theoretically. Conformational changes of the molecules and the formation of complexes with improved thermal stability were observed. Complexing with large-ring cyclodextrin can be used as an effective means to encapsulate the aroma/flavor compounds.
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Affiliation(s)
- Chuan Cao
- The College of Environment and Chemical Engineering, Anhui Vocational and Technical College, Hefei, China.,Anhui Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei, China
| | - Changyue Deng
- Anhui Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei, China
| | - Jinwei Hu
- Anhui Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei, China
| | - Yibin Zhou
- Anhui Engineering Laboratory of Agricultural Products Processing, Anhui Agricultural University, Hefei, China
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Solubility enhancement of poorly water soluble domperidone by complexation with the large ring cyclodextrin. Int J Pharm 2021; 606:120909. [PMID: 34298103 DOI: 10.1016/j.ijpharm.2021.120909] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/10/2021] [Accepted: 07/18/2021] [Indexed: 12/25/2022]
Abstract
The water solubility of domperidone (DMP) could be improved by complexation with large ring cyclodextrins (LR-CDs). LR-CDs contain a relatively hydrophobic cavity that is capable of entrapping the molecules to form inclusion complexes. The complex formation capability of mixture LR-CDs having a degree of polymerization (DP) of 22-48, with DMP was investigated. The phase solubility profile of mixture LR-CD/DMP was classified as AN-type, resulting in increased DMP solubility in water by 3-fold. Various physicochemical techniques confirmed the mixture LR-CD/DMP complex formation. Single LR-CD with DP of 26, 27, 28, 29, 30, 33 and 34 (CD26 ~ CD34) were isolated from LR-CD mixtures using ODS column for HPLC separation. The CD33/DMP complex has demonstrated the most significant improvement compared to other single LR-CD complexes with a 2.7-fold increase in DMP solubility. The molecular dynamic result revealed that DMP formed stable complexes with CD33 by positioned fully encapsulated inside the cavity and covered by 13-14 subunits of CD33.
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Khuntawee W, Kunaseth M, Rungnim C, Intagorn S, Wolschann P, Kungwan N, Rungrotmongkol T, Hannongbua S. Comparison of Implicit and Explicit Solvation Models for Iota-Cyclodextrin Conformation Analysis from Replica Exchange Molecular Dynamics. J Chem Inf Model 2017; 57:778-786. [DOI: 10.1021/acs.jcim.6b00595] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Manaschai Kunaseth
- National
Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Chompoonut Rungnim
- National
Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Suradej Intagorn
- Department
of Mathematics, Statistics and Computer Science, Kasetsart University, Kamphaeng Saen
Campus, Nakhon Pathom 73140, Thailand
| | | | - Nawee Kungwan
- Department
of Chemistry, Faculty of Science, Chiang Mai University, 239 Huay
Kaew Road, Muang District, Chiang Mai 50200, Thailand
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