Encapsulation of natural flavors in cyclodextrins

Free volume studies by PALS

M. F. Ferreira Marques, P. M. Gordo, S. D. Santos, R. F. Marques, A. Da Moreira Silva, Z. Kajcsos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Positron annihilation lifetime spectroscopy (PALS) is used to study the free-volume in β-cyclodextrin (CD) with the encapsulation of two different essential oils: garlic (Allium sativum) and marjoram (Origanum majorana). The data reveal the presence of a long lifetime component related to the o-Ps. It is observed that the addition of garlic (or marjoram) oil to β-CD results in a decrease of the o-Ps lifetime which was ascribed to a reduction of the free volume holes from 83.6 to 67.7 Å3 (79.1 to 72.6 Å3). Different mechanisms for the encapsulation of garlic and marjoram oils in β-CD are suggested by the PALS parameters.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages88-91
Number of pages4
Volume733
DOIs
Publication statusPublished - 2013
Event10th International Workshop on Positron and Positronium Chemistry, PPC-10 - Smolenice Castle, Slovakia
Duration: Sep 5 2011Sep 9 2011

Publication series

NameMaterials Science Forum
Volume733
ISSN (Print)02555476

Other

Other10th International Workshop on Positron and Positronium Chemistry, PPC-10
CountrySlovakia
CitySmolenice Castle
Period9/5/119/9/11

Fingerprint

Positron annihilation
Flavors
Cyclodextrins
Free volume
positron annihilation
Encapsulation
Spectroscopy
life (durability)
oils
spectroscopy
Essential oils
Volatile Oils
Oils

Keywords

  • Cyclodextrins
  • Encapsulation
  • Free-volume
  • Natural flavors
  • Positron lifetime

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Ferreira Marques, M. F., Gordo, P. M., Santos, S. D., Marques, R. F., Da Moreira Silva, A., & Kajcsos, Z. (2013). Encapsulation of natural flavors in cyclodextrins: Free volume studies by PALS. In Materials Science Forum (Vol. 733, pp. 88-91). (Materials Science Forum; Vol. 733). https://doi.org/10.4028/www.scientific.net/MSF.733.88

Encapsulation of natural flavors in cyclodextrins : Free volume studies by PALS. / Ferreira Marques, M. F.; Gordo, P. M.; Santos, S. D.; Marques, R. F.; Da Moreira Silva, A.; Kajcsos, Z.

Materials Science Forum. Vol. 733 2013. p. 88-91 (Materials Science Forum; Vol. 733).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ferreira Marques, MF, Gordo, PM, Santos, SD, Marques, RF, Da Moreira Silva, A & Kajcsos, Z 2013, Encapsulation of natural flavors in cyclodextrins: Free volume studies by PALS. in Materials Science Forum. vol. 733, Materials Science Forum, vol. 733, pp. 88-91, 10th International Workshop on Positron and Positronium Chemistry, PPC-10, Smolenice Castle, Slovakia, 9/5/11. https://doi.org/10.4028/www.scientific.net/MSF.733.88
Ferreira Marques MF, Gordo PM, Santos SD, Marques RF, Da Moreira Silva A, Kajcsos Z. Encapsulation of natural flavors in cyclodextrins: Free volume studies by PALS. In Materials Science Forum. Vol. 733. 2013. p. 88-91. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.733.88
Ferreira Marques, M. F. ; Gordo, P. M. ; Santos, S. D. ; Marques, R. F. ; Da Moreira Silva, A. ; Kajcsos, Z. / Encapsulation of natural flavors in cyclodextrins : Free volume studies by PALS. Materials Science Forum. Vol. 733 2013. pp. 88-91 (Materials Science Forum).
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