บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

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

Mactavish, H. S.; Menary, R. C.;

Journal of Horticultural Science and Biotechnology Year: 1999 Vol: 74 Issue: 4 Pages: 436-439 Ref: 8 ref.

1999

บทคัดย่อ

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

The potential for enhanced concentrations of essential oils in flowers from 4 genetically distinct clones of brown boronia (Boronia megastigma) as a result of postharvest incubation was assessed. Flowers were sampled throughout 48 h of incubation at 12 and 30 deg C. There was significant variation in the changes observed between clones. Increases in 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 beta -ionone, the main volatile of interest, increased by between 45 and 181%. The maximum concentration of total volatiles observed was 0.47%, and of beta -ionone, 0.165%; all values being expressed as a percentage of dry flower weight. The most significant increase in floral extract, total volatiles and beta -ionone after harvest, occurred in clone 250. Increases in all components were greater

as a result of incubation at 12 deg C for 48 h than at 30 deg C for 12 h.