Studies on self-diffusion of main components of hop oils

Chen, Liuping and Gross, Thomas and Luedemann, Hans-Dietrich (2001) Studies on self-diffusion of main components of hop oils. CHINESE JOURNAL OF CHEMISTRY, 19 (5). pp. 453-456. ISSN 1001-604X

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Abstract

The self-diffusion coefficients (D) of alpha -humulene and myrcene, which are main components of hop oils, were measured at the temperature range of 274-372 K and pressures up to 100 MPa by the Stejskal-Tanner ET NMR method. In order to obtain motional behavior of the molecules in the supercritical conditions, the intradiffusion coefficients (D(ii)) of the two substances in carbon dioxide were also determined. It was found that the values of D(ii) are about one order of magnitude higher than that for the pure components at the same ranges of temperature and pressure. The self-diffusion data of alpha -humulene and myrcene are analysed, and the diffusion behavior of these compounds is discussed.

Item Type: Article
Uncontrolled Keywords: DENSITY-DEPENDENCE; HIGH-PRESSURE; TEMPERATURE; LIQUIDS; NMR; hop oil; supercritical carbon dioxide; self-diffusion coefficient; NMR
Subjects: 500 Science > 570 Life sciences
Divisions: Biology, Preclinical Medicine > Institut für Biophysik und physikalische Biochemie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 31 Jan 2022 10:53
Last Modified: 31 Jan 2022 10:53
URI: https://pred.uni-regensburg.de/id/eprint/41448

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