Abstract
Lavandin, as an important cash crop, is cultivated in Kunming, Yun-Gui Plateau of China. For the special growing environment, Lavandin was grown here and used to investigate the changes in the yield and chemical compositions of essential oils extracted from the flowers in different seasons. The essential oils were extracted by hydro-distillation and analysis by gas chromatography-mass spectrometry (GC-MS). Results indicated great changes in chemical composition depending on the season of harvesting. The yields of essential oils ranged from 2.0% to 3.8% among the seasons, and the highest yield was in the summer. Chemical composition data showed that the extracted oils were rich in oxygenated monoterpenes (55.4–81.4%), eucalyptol (38.7–49.8%), camphor (8.41–14.26%), α-bisabolol (6.6–25.5%), and linalool (4.6–12.5%). The contents of eucalyptol and α-bisabolol changed in a contrary trend with seasonal variations. The results provided new insight for Chinese Lavandin germplasm to be used in application and development, and reference to the researcher, the farmer, and investor for sustainable industrialization of the plant grown in the Yun-Gui Plateau of China, but also the similar plateau area of the sustainable developments.
Highlights
Lavandula species are outstanding members of the family Lamiaceae, which are native to the Mediterranean region and south to tropical Africa, with a disjunction to India, and are currently widely cultivated in many regions of the world [1]
The aim of this study was to reveal the variation of yield and chemical composition of Lavandin oils in order to provide a reference for sustainable industrialization of the plant grown in the Yun-Gui Plateau of China, and provided new insight for Chinese Lavandin germplasm to be used in application
We aimed to create a L. angustifolia variety as a cash crop which flowered in the field in all four seasons in the Yun-Gui Plateau
Summary
Lavandula species are outstanding members of the family Lamiaceae, which are native to the Mediterranean region and south to tropical Africa, with a disjunction to India, and are currently widely cultivated in many regions of the world [1]. The genus is an ornamental and aromatic shrub, which is valuable for the production of essential oils of commercial value as a fragrance, pharmaceutical preparations, and cosmetic products, and is used in the food industry and ecological agriculture [2,3,4,5,6,7] These essential oils have been obtained from the flowers, stems, and leaves of the species L. angustifolia, L. hybridia, and L. latifolia, and are classified into three groups on the basis of their content of linalool, linalool acetate, and camphor [8]. The variation in the content of volatile oils related to the flowering phase can help to ensure the required quality and quantity of raw material This aspect is very important from the point of view of Lavandin for exploitation and utilization. The aim of this study was to reveal the variation of yield and chemical composition of Lavandin oils in order to provide a reference for sustainable industrialization of the plant grown in the Yun-Gui Plateau of China, and provided new insight for Chinese Lavandin germplasm to be used in application
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