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Huang X, Guo H, Xie Q, Jin W, Zeng R, Hong Z, Zhang Y, Zhang Y. Preparation and Embedding Characterization of Hydroxypropyl-β-cyclodextrin/ Menthyl Acetate Microcapsules with Enhanced Stability. Pharmaceutics 2023; 15:1979. [PMID: 37514165 PMCID: PMC10383387 DOI: 10.3390/pharmaceutics15071979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/10/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
OBJECTIVE Hydroxypropyl-β-cyclodextrin (HP-β-CD)/menthyl acetate (MA) microcapsules were developed to overcome the volatile and unstable defects of MA and improve the ease of use and storage. METHODS MA microcapsules were prepared via spray drying using HP-β-CD as the wall material. The embedding rate of MA microcapsules was determined through gas chromatography. The embedding characteristics were studied using phase solubility and nuclear magnetic resonance (NMR). The stability was characterized via differential scanning calorimetry (DSC) and the release and retention rates of MA microcapsules at different temperatures. RESULTS The embedding rate of HP-β-CD /MA microcapsules was 96.3%. The Gibbs free energy change, enthalpy change and entropy change of the embedding reaction between HP-β-CD and MA were all less than zero, indicating that the embedding process was a spontaneous exothermic reaction. NMR spectra showed that MA entered the cavity of HP-β-CD through the large opening end and interacted with the inner wall of the small opening end. DSC and the release and retention rates of MA microcapsules at different temperatures showed that the stability of MA was significantly enhanced after being embedded in HP-β-CD. CONCLUSION The HP-β-CD/MA microcapsules are able to significantly improve the stability of MA and reduce the volatilization of MA.
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Affiliation(s)
- Xiaoqing Huang
- College of Marine Food and Biological Engineering, Jimei University, Xiamen 361021, China
- Engineering Technology Innovation Center for the Development and Utilization of Marine Living Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Honghui Guo
- Engineering Technology Innovation Center for the Development and Utilization of Marine Living Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
- Department of Marine Biology, Xiamen Ocean Vocational College, Xiamen 361100, China
- Fujian Provincial Key Laboratory of Island Conservation and Development (Island Research Center, MNR), Pingtan 350400, China
| | - Quanling Xie
- Engineering Technology Innovation Center for the Development and Utilization of Marine Living Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
- Department of Marine Biology, Xiamen Ocean Vocational College, Xiamen 361100, China
- Fujian Provincial Key Laboratory of Island Conservation and Development (Island Research Center, MNR), Pingtan 350400, China
| | - Wenhui Jin
- Engineering Technology Innovation Center for the Development and Utilization of Marine Living Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
- Department of Marine Biology, Xiamen Ocean Vocational College, Xiamen 361100, China
- Fujian Provincial Key Laboratory of Island Conservation and Development (Island Research Center, MNR), Pingtan 350400, China
| | - Runying Zeng
- Engineering Technology Innovation Center for the Development and Utilization of Marine Living Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Island Conservation and Development (Island Research Center, MNR), Pingtan 350400, China
| | - Zhuan Hong
- Engineering Technology Innovation Center for the Development and Utilization of Marine Living Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
- Department of Marine Biology, Xiamen Ocean Vocational College, Xiamen 361100, China
- Fujian Provincial Key Laboratory of Island Conservation and Development (Island Research Center, MNR), Pingtan 350400, China
| | - Yiping Zhang
- Engineering Technology Innovation Center for the Development and Utilization of Marine Living Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
- Department of Marine Biology, Xiamen Ocean Vocational College, Xiamen 361100, China
- Fujian Provincial Key Laboratory of Island Conservation and Development (Island Research Center, MNR), Pingtan 350400, China
| | - Yucang Zhang
- College of Marine Food and Biological Engineering, Jimei University, Xiamen 361021, China
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Romero MC, Navarro MC, Martín-Sánchez J, Valero A. Peppermint (Mentha piperita) and albendazole against anisakiasis in an animal model. Trop Med Int Health 2014; 19:1430-6. [PMID: 25330410 DOI: 10.1111/tmi.12399] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES Therapy against anisakiasis requires invasive techniques to extract L3 , and an effective drug against this nematode is needed. The aim of this study was to determine the efficacy of peppermint essential oil (EO) and its main components against the parasite in comparison to albendazole, a drug currently prescribed to treat anisakiasis. METHODS We conducted in vitro experiments and studied an experimental model simulating the human infection in Wistar rats. We used polymerase chain reaction restriction fragment length polymorphism to identify A. simplex s.s. and A. pegreffii and determine any differences in their pathogenicity and susceptibility to the treatments. RESULTS The in vitro and in vivo experiments both showed that the larvicidal activity of peppermint EO, menthol, menthone and menthyl acetate is higher than that of albendazole. Large stomach lesions were observed in 46.7% of the albendazole-treated rats, whereas no gastrointestinal lesions were detected in those treated with peppermint EO, menthol, menthyl acetate or menthone. CONCLUSIONS In this animal model, treatment with peppermint EO or its main components was more effective than was treatment with albendazole. Lesions were more frequently produced by A. simplex s.s. larvae than by A. pegreffii larvae.
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Affiliation(s)
- Ma Carmen Romero
- Department of Parasitology, University of Granada, Granada, Spain
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Lutz A, Sfara V, Alzogaray RA. Repellence produced by monoterpenes on Rhodnius prolixus (Hemiptera: Reduviidae) decreases after continuous exposure to these compounds. J Insect Sci 2014; 14:254. [PMID: 25525113 PMCID: PMC5634126 DOI: 10.1093/jisesa/ieu116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Accepted: 02/18/2014] [Indexed: 06/04/2023]
Abstract
Botanical monoterpenes are secondary metabolites present in essential oils produced by plants. Some of them are insect repellents. The bloodsucking bug Rhodnius prolixus Ståhl (Hemiptera: Reduviidae) is one of the main vectors of Chagas disease in the north of South America and some countries in Central America. In this study, we studied the repellence produced by two monoterpenes, menthyl acetate and geraniol, on fifth instar nymphs of R. prolixus. In the absence of other stimuli, both menthyl acetate and geraniol produced a repellent effect from 740 μg/cm(2) and 74 μg/cm(2), respectively. Pre-exposure to each monoterpene reduced the repellent activity produced by the same substance. Additionally, pre-exposure to one monoterpene decreased the behavioral response of the nymphs to the other one. The repellent effect of both monoterpenes also decreased when nymphs' antennae were previously treated with the nitric oxide donor S-nitroso-N-acetyl-cysteine.
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Affiliation(s)
- Alejandra Lutz
- Cátedra de Sanidad Vegetal, Departamento de Producción Vegetal, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Provincia de Santa Fe, Argentina
| | - Valeria Sfara
- Centro de Investigaciones de Plagas e Insecticidas (CIPEIN-UNIDEF-CONICET), JB de La Salle 4397, (1603) Villa Martelli, Provincia de Buenos Aires, Argentina Instituto de Investigación e Ingeniería Ambiental, Universidad Nacional de San Martín, San Martín, Provincia de Buenos Aires, Argentina
| | - Raúl Adolfo Alzogaray
- Centro de Investigaciones de Plagas e Insecticidas (CIPEIN-UNIDEF-CONICET), JB de La Salle 4397, (1603) Villa Martelli, Provincia de Buenos Aires, Argentina Instituto de Investigación e Ingeniería Ambiental, Universidad Nacional de San Martín, San Martín, Provincia de Buenos Aires, Argentina
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