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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/11421
Title: Encapsulation of citral isomers in extracted lemongrass oil with cyclodextrins: Molecular modeling and physicochemical characterizations
Authors: Uracha Rungsardthong Ruktanonchai
Wanwisa Srinuanchai
Somsak Saesoo
Issara Sramala
Satit Puttipipatkhachorn
Apinan Soottitantawat
Thailand National Nanotechnology Center
Mahidol University
Chulalongkorn University
Keywords: Biochemistry, Genetics and Molecular Biology;Chemistry;Immunology and Microbiology
Issue Date: 1-Dec-2011
Citation: Bioscience, Biotechnology and Biochemistry. Vol.75, No.12 (2011), 2340-2345
Abstract: The complexation between two isomers of citral in lemongrass oil and varying types of cyclodextrins (CDs), α-CD, β-CD, and HP-β-CD, were studied by molecular modeling and physicochemical characterization. The results obtained revealed that the most favorable complex formation governing between citrals in lemongrass oil and CDs were found at a 1:2 mole ratio for all CDs. Complex formation between E-citral and CD was more favorable than between Z-citral and CD. The thermal stability of the inclusion complex was observed compared to the citral in the lemongrass oil. The release time course of citral from the inclusion complex was the diffusion control, and it correlated well with Avrami's equation. The release rate constants of the E- and Z-citral inclusion complexes at 50 °C, 50% RH were observed at 1:32 × 10 -2 h -1 and 1:43 × 10 -2 h -1 respectively.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84855254087&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/11421
ISSN: 13476947
09168451
Appears in Collections:Scopus 2011-2015

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