Please use this identifier to cite or link to this item:
|Title: ||Aroma Characteristics of various 'true' and 'false' peppers from around the globe.|
|Authors: ||Druce, Hayden|
|Keywords: ||Aroma characteristics of peppers|
|Issue Date: ||28-Mar-2013|
|Publisher: ||Faculty of Agriculture and Environment|
|Abstract: ||The headspace from a number of ‘True’ and ‘False’ peppers was sampled using two different techniques and analysed using gas chromatography mass-spectrometry (GC-MS). Initially, Solid Phase Microextraction (SPME) was tested as a means of sampling freshly released aroma compounds. However, due to poor chromatographic separation the results remained largely inconclusive. The use of thermal desorption dynamic headspace (TD-DHS) sampling proved more successful. Using this technique, over 130 compounds were identified across the 19 pepper samples. The method proved to be effective in sampling volatiles in a way that replicated the consumer pepper experience and allowed for the quantitative comparison of volatile constituents across samples. A number of peppers, with freshly released aroma volatiles previously not described were successfully characterised, including Voatsiperifery pepper (Piper borboneense) and Tasmanian Pepper (Tasmannia lanceolata). The TD-DHS GC-MS method developed was also used to assess the effects of pre-grinding on the volatile constituents of Tasmanian Pepper berry and leaf. Both leaf and berry volatile levels were dramatically reduced due to the industrial pre-grinding processing. Essential oils from Tasmanian Pepper berry (both dried and freeze-dried) and crushed leaf were extracted and analysed using GC-MS. The volatiles identified were consistent with those in the published literature.|
|Type of Work: ||Masters Thesis|
|Type of Publication: ||Master of Science in Agriculture M. Sc. Agr.|
|Appears in Collections:||Sydney Digital Theses (Open Access)|
This work is protected by Copyright. All rights reserved. Access to this work is provided for the purposes of personal research and study. Except where permitted under the Copyright Act 1968, this work must not be copied or communicated to others without the express permission of the copyright owner. Use the persistent URI in this record to enable others to access this work.
|THESISFINALHAYDENDRUCE.pdf||3.03 MB||Adobe PDF|
Items in Sydney eScholarship Repository are protected by copyright, with all rights reserved, unless otherwise indicated.