Iranian Journal of Medicinal and Aromatic Plants Research

Seasonal variation in the essential oil content and composition of three Eucalyptus species (Eucalyptus melliodora Cunn. ex Schauer, E. kingsmilli Maiden & Blakely and E. dundasii Maiden) from South Iran

N. Esfahanianfard; F. Sefidkon; Gh. Bakhshi Khaniki

Volume 27, Issue 1 , May 2011, , Pages 97-126

https://doi.org/10.22092/ijmapr.2011.6646

Abstract

To investigate variations in the essential oil content and composition, leaves of three Eucalyptus species named E. melliodora, E. kingsmilli and E. dundasii were collected in the middle of four seasons during two years from two warm regions, Dezful and Shushtar in South of Iran. The essential oils were ... Read More To investigate variations in the essential oil content and composition, leaves of three Eucalyptus species named E. melliodora, E. kingsmilli and E. dundasii were collected in the middle of four seasons during two years from two warm regions, Dezful and Shushtar in South of Iran. The essential oils were obtained by hydrodistillation and the oils were analyzed by GC and GC/MS. The maximum oil yield of E. melliodora was obtained in winter (3.1-3.9%) and spring (2.6-2.7%) from Shushtar samples, and in autumn (1.7-2.0%) from Dezful samples. The highest percentage of 1,8-cineole was found in winter and autumn in both regions. The maximum oil yield of E. kingsmilli was obtained in winter (2.8-3.1%) from Shushtar samples, and in authumn (2.7-3.2%) from Dezful samples. The highest percentage of 1, 8-cineole was found in winter and autumn in Shushtar and autumn, spring and winter in Dezful. The maximum oil yield of E. dundasii was obtained in winter (2.8-4.7%) from Shushtar samples, and in summer (0.9%) from Dezful samples. The highest percentage of 1, 8-cineole was found in spring and autumn in Shudhtar and spring in Dezful. There were also some variations in the amounts of other major and minor components. According to the results and to achieve a suitable quality and quantity of Eucalyptus essential oil, cultivation of E. melliodora in Shushtar and Dezful is recommended. For obtaining the highest oil yield and 1,8-cineole content from the mentioned Eucalyptus species, the best harvesting time for E. melliodora is spring and winter in Shushtar and autumn in Dezful. Cultivation of E. kingsmilli in Dezful is more suitable than that in Shushtar and the best harvesting time is spring and autumn in Shushtar and autumn in Dezful. Cultivation of E. dundasii is also recommended in Shushtar while not in Dezful due to its low yield and quality of essential oil. The best harvesting time for E. dundasii in Shushtar is winter (the highest oil yield) and spring (the highest 1, 8-cineole percentage).

Effect of harvesting time on essential oils content and composition of Salvia officinalis L. and Mentha piperita L. in Khuzestan province

M. Mirza; F. Ghoraishi; A. Bahadori

Volume 26, Issue 4 , February 2011, , Pages 531-543

https://doi.org/10.22092/ijmapr.2011.6669

Abstract

In this research, the effect of different harvesting stages on essential oils content and composition of Mentha piperita L. and Salvia officinalis L. was studied. The rhizome of Mentha piperita was planted at 5 cm soil depth in the field of "Jangalkar Ferdos Company", 2008. The salvia seeds were received ... Read More

The effect of harvesting time and drying at natural and artificial conditions on the storability of white garlic (Allium sativum L.) population of Hamedan

F. Bayat; A.E. Nosrati

Volume 25, Issue 1 , May 2009, , Pages 49-63

Abstract

Proper drying is essential to successful marketing in regions which cultivated Garlic (Allium sativum L.) and most serious post harvest losses result from improper drying. For this reason, after the cut off irrigation, white garlic population were harvested at three stages. The first stage of harvesting ... Read More

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Keywords = harvesting time

Seasonal variation in the essential oil content and composition of three Eucalyptus species (Eucalyptus melliodora Cunn. ex Schauer, E. kingsmilli Maiden & Blakely and E. dundasii Maiden) from South Iran

Abstract

Effect of harvesting time on essential oils content and composition of Salvia officinalis L. and Mentha piperita L. in Khuzestan province

Abstract

The effect of harvesting time and drying at natural and artificial conditions on the storability of white garlic (Allium sativum L.) population of Hamedan

Abstract