Role of essential oils, ethanol and methanol in increasing the vase-life of tuberose (Polianthes tuberose L.)
Zahra Karimin Fariman
Abstracts of 7th International Postharvest Symposium 2012 (IPS2012). 25-29 June, 2012. Putra World Trade Centre (PWTC), Kuala Lumpur, Malaysia. 238 pages.
2012
บทคัดย่อ
The aim of this study was to evaluate the efficacy of essential oils, ethanol and methanol as novel and old antimicrobial agents (respectively) in extending the vase-life of Tuberose (Polianthes tuberose L.) flowers. Cut spikes of tuberose were kept in preservative solution containing essential oils of Thyme, Black cumin and Peppermint (50 and 100 mg L-1), ethanol, methanol (4, 7 and 10%) and control. Result showed the highest solution uptake was in ethanol 10% and methanol 4%. Treatments of control, ethanol and methanol 4% had the highest SPad number (up to 30) in comparison with other treatments. In spike fresh weight losses, significant difference was shown among of ethanol 10% and methanol 7% (highest spike fresh losses) with ethanol and methanol 4%, control, Thyme essential oils 50 mg L-1, Peppermint essential oils 100 mg L-1 and Black cumin essential oils 50 mg L-1 (lowest fresh losses). In preservative solution of essential oils, ethanol and methanol the vase-life of flowers didn't have significant difference compared with control. Our results suggest the importance of alcohols in preservative solutions for Tuberose flowers.