Vol 7 No 1 (2001)
Cikkek

Evaluation of essential oils by gas-chromatography and a new method: "electronic nose"

Published March 21, 2001
I. Novák
Szent István University, Faculty of Horticultural Sciences, Department of Medicinal and Aromatic plants, 1118 Budapest, Villányi str. 29, Hungary
N. É. Zámboriné
Szent István University, Faculty of Horticultural Sciences, Department of Medicinal and Aromatic plants, 1118 Budapest, Villányi str. 29, Hungary
H. Horváth
Szent István University, Faculty of Food Sciences, Sensory Laboratory, 1118 Budapest, Villányi str. 29, Hungary
Zs. Seregély
Szent István University, Faculty of Food Sciences, Department of Refrigeration and Livestock Products Technology, 1118 Budapest, Ménesi u. 45, Hungary
K. Kaffka
Szent István University, Faculty of Food Sciences, Department of Refrigeration and Livestock Products Technology, 1118 Budapest, Ménesi u. 45, Hungary
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How to Cite

APA

Novák, I., Zámboriné, N. É., Horváth, H., Seregély, Z., & Kaffka, K. (2001). Evaluation of essential oils by gas-chromatography and a new method: "electronic nose". International Journal of Horticultural Science, 7(1), 85-89. https://doi.org/10.31421/IJHS/7/1/255

Abstract

The chemical quality of the essential oils is determined by their composition as well as by the complex aroma features. For the evaluation of odour and aroma, sensory tests are practised, especially for applications such as aromatherapy, food industry or perfumery. In the recent studies we investigated eight Mentha origins (populations of Mentha iperita, M. spicata and M. arvensis) of our genebank collection using a new and effective instrumental sensory evaluation method parallelly with the usual GC analysis.

The results show that the examined mint clones possess different essential oil accumulation levels and special flavour characteristics, too. The GC analysis of the essential oil revealed characteristic differences at both inter- and intraspecific level in the proportion of mentol, menthon, carvon, limonene, menthyl acetate and in two not identified monoterpenes.

In the sensory tests the special complex aroma enables a reliable distinction with a single exception among the populations by the help of the "electronic nose" equipment. The distinction among the samples based on the sensor signals of the instrument — evaluated by multivariate methods — shows a close relation with the detected monoterpene components of the essential oil.

 

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