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Production of volatiles in brown boronia flowers after harvest. I: Effect of clonal type and incubation temperature


MacTavish, HS and Menary, RC, Production of volatiles in brown boronia flowers after harvest. I: Effect of clonal type and incubation temperature, Journal of Horticultural Science & Biotechnology, 74, (4) pp. 436-439. ISSN 0022-1589 (1999) [Refereed Article]

DOI: doi:10.1080/14620316.1999.11511133


The potential for enhanced concentrations of essential oils (solvent-extracted floral products) in flowers from four genetically distinct clones of brown boronia (Boronia megastigma Nees) as a result of post-harvest incubation was assessed. Flowers were sampled throughout 48 h of incubation at 12 and 30°C. There was significant variation in the changes observed between clones. Increases in the concentration of floral extract as a result of incubation varied from 3% to 19%, the maximum concentration of floral extract observed was 2.13% (dry-weight basis). The volatile portion of the extract increased by between 25 and 117%, and the concentration of β-ionone, the main volatile of interest, increased by between 45 and 181%. The maximum concentration of total volatiles observed was 0.47%, and of β-ionone, 0.165%; all values being expressed as a percentage of dry flower weight. The most significant increase in floral extract, total volatiles and β-ionone after harvest, occurred in clone 250. Increases in all components were greater as a result of incubation at 12°C for 48 h compared with 30°C for 12 h.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Horticultural production
Research Field:Horticultural production not elsewhere classified
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural crops
Objective Field:Horticultural crops not elsewhere classified
UTAS Author:MacTavish, HS (Dr Hazel MacTavish-West)
UTAS Author:Menary, RC (Professor Robert Menary)
ID Code:15777
Year Published:1999
Web of Science® Times Cited:4
Deposited By:Agricultural Science
Deposited On:1999-08-01
Last Modified:2000-05-16

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