Essential Oil Variation among Natural Populations of Lavandula multifida L. (Lamiaceae)

Abstract

Volatiles from twelve wild Tunisian populations of Lavandula multifida L. growing in different bioclimatic zones were assessed by GC (RI) and GC/MS. Thirty-six constituents, representing 83.48% of the total oil were identified. The major components at the species level were carvacrol (31.81%), beta-bisabolene (14.89%), and acrylic acid dodecyl ester (11.43%). These volatiles, together with alpha-pinene, were also the main compounds discriminating the populations. According to these dominant compounds, one chemotype was revealed, a carvacrol/beta-bisabolene/acrylic acid dodecyl ester chemotype. However, a significant variation among the populations was observed for the majority of the constituents. A high chemical-population structure, estimated both by principal component analysis (PCA) and unweighted pair group method with averaging (UPGMA) cluster analysis based on Euclidean distances, was observed. Both methods allowed separation of the populations in three groups defined rather by minor than by major compounds. The population groups were not strictly concordant with their bioclimatic or geographic location. Conservation strategies should concern all populations, because of their low size and their high level of destruction. Populations exhibiting particular compounds other than the major ones should be protected first.

Evaluation of the inhibitive effect of essential oil of Lavandula multifida L., on the corrosion behavior of C38 steel in 0.5 M H2SO4 medium

“…These results were in accordance with those previously reported in the literature. Indeed, the studies on essential oil compositions of L. multifida growing wild in the Mediterranean region (Spain, Morocco, and Tunisia) showed also carvacrol as the main constituent [27][28][29].…”

Variations in Essential Oil Compositions of Lavandula pubescens (Lamiaceae) Aerial Parts Growing Wild in Yemen

“…It was found that the variation in the essential oil composition is influenced mainly by individual genetic variability, variation among different plant parts and their different stages of development, and modifications due to the environment, e.g ., weather, light, latitude, altitude, soil, stress, etc . These factors, in particular the genetic makeup, influence the plant's biosynthetic pathways and, consequently, the relative proportion of the main constituents . Along these lines, several different chemotypes, based on essential oil compositions, have been defined for Lavandula spp .…”

Production and characterization of multinuclear microcapsules encapsulating lavender oil by complex coacervation

“…Lavender oil (LO) is an essential oil that has widespread use in balms, salves, perfumes, cosmetics, and so on . Studies on LO have been performed due to its applicability in the perfumery industry as a pleasant fragrance or as an antimicrobial agent.…”