Drying of lemon myrtle (Backhousia citriodora) leaves: Retention of volatiles and color

Buchaillot, A., Caffin, N. and Bhandari, B. (2009) Drying of lemon myrtle (Backhousia citriodora) leaves: Retention of volatiles and color. Drying Technology, 27 3: 445-450. doi:10.1080/07373930802683740


Author Buchaillot, A.
Caffin, N.
Bhandari, B.
Title Drying of lemon myrtle (Backhousia citriodora) leaves: Retention of volatiles and color
Formatted title
Drying of lemon myrtle (Backhousia citriodora) leaves: retention of volatiles and color
Journal name Drying Technology   Check publisher's open access policy
ISSN 0737-3937
Publication date 2009
Year available 2009
Sub-type Article (original research)
DOI 10.1080/07373930802683740
Volume 27
Issue 3
Start page 445
End page 450
Total pages 6
Editor Arun S Mujumdar
Place of publication United States
Publisher Taylor & Franci Inc
Collection year 2010
Language eng
Subject C1
820209 Ornamentals, Natives, Flowers and Nursery Plants
090802 Food Engineering
Abstract Lemon myrtle plant (Backhousia citriodora) leaves were dried at three different drying temperature conditions (30, 40, and 50°C) in a fluidized bed dryer. The retention of the principal volatile compound, citral, was analyzed in dried products obtained at these three drying conditions. The changes in the color parameters L*, a*, b* of leaves were also analyzed. More than 90% of citral was retained at 50°C drying temperature, whereas the retention at 30 and 40°C was 81 and 85%, respectively, suggesting that higher temperature is beneficial to achieve higher retention of volatiles. However, in terms of the color, all the color parameters were changed maximum at 50°C drying temperature unfavorably, suggesting that the higher temperature drying causes more degradation of the pigment. Blanching of the leaves in hot water at 80°C for 1 min prior to drying did not result in any improvement in volatile retention or color.
Keyword Australian
Citral
Drying
Herbs
Lemon myrtle
Water activity
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Agriculture and Food Sciences
 
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Created: Thu, 03 Sep 2009, 08:36:32 EST by Mr Andrew Martlew on behalf of School of Land, Crop and Food Sciences