Seasonal Variations in Essential Oil Composition of Immortelle Cultivated in Serbia (original) (raw)
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Agronomy
H. italicum essential oil (EO) is one of the most popular ingredients utilized by the cosmetic industry, and it is also used as natural antioxidant and as a value-added ingredient in food products. The chemical composition of the EO H. italicum cultivated in Serbia was analyzed by gas chromatography–mass spectrometry. The quantitative structure–retention relationship was used to predict the retention indices of the EO constituents acquired by GC-MS data, applying five molecular descriptors selected by factor analysis and a genetic algorithm. Also, antimicrobial activity, and biological activity by four common antioxidant tests (DPPH and ABTS assays, reducing power, and β-carotene bleaching test), and in vitro antihyperglycemic and anti-inflammatory capacities were evaluated. A total of 70 EO constituents were detected, of which 17 (8.5%) could not be identified. The H. italicum EO in this study belonged to γ-curcumene chemotype. The coefficients of determination reached the value of...
Separations
The most important process in immortelle is the extraction of the essential oil by distillation. The chemical properties of the plant depend largely on the cultivation type, climatic conditions and agrotechnical measures. In this work, studies were carried out on organically grown and wild immortelle harvested during the summer (July) and autumn (October) seasons of 2020. Immortelle samples were prepared by drying naturally in two ways: in direct sunlight and in shade. To extract the essential oil, immortelle was distilled in two ways: on an industrial and a laboratory scale. The essential oil was analyzed by gas chromatography to determine the composition and quality of the essential oil. The results of this work showed that the qualitative properties of the essential oil were influenced by the cultivation type, harvesting time, preparation method and distillation method. A higher yield (0.21% ± 0.03) of essential oil was obtained from wild immortelle whereas a better utilization r...
2018
Tzanova, M., Grozeva, N., Gerdzhikova, M., Atanasov, V., Terzieva, S., & Prodanova, R. (2018). Biochemical composition of essential oil of Corsican Helichrysum italicum (Roth) G. Don, introduced and cultivated in South Bulgaria. Bulgarian Journal of Agricultural Science, 24(6), 1071–1077 This study provided GC-FID and GC-MS analysis of the volatile constituents of Helichrysum italicum (Roth) G. Don, introduced from Corsica (France), cultivated in South Bulgaria, harvested in different phenological stages – fl oral budding period and fl owering period, and compared its quality to the quality of the species of native origin. Similarities in qualitative, but with differences in quantitative composition of their essential oils were indicated, because of the different environmental conditions. 41 components were identifi ed, representing 89.25-95.63% of the total essential oil composition. In the essential oil of H. italicum, harvested in the fl oral budding period, the content of sesqui...
Essential oils and volatiles: sample preparation and analysis. A review
Flavour and Fragrance Journal, 2010
This article is a short overview on the state of the art in essential oil analysis. Several aspects of the analysis of essential oils and volatile fraction of vegetable matrices are here critically discussed. The following topics are dealt with steam distillation and hydrodistillation and headspace sampling for sample preparation, and fast-GC and fast-GC-QMS analysis, enantioselective GC, multidimensional GC techniques, GC-Isotopic Ratio Mass Spectrometry (GC-IRMS) for analysis and quantitation.
Analysis of Helichrysum oligocephalum DC. essential oil
Background and objectives: Helichrysum oligocephalum DC. (Compositae) is an endemic plant in Iran that has been recommended by Iranian traditional and folk medicine practitioners for gastrointestinal complaints. The plant is rich in essential oil and in the present investigation, the volatile composition of the species has been determined. Methods: The light yellow essential oil from the aerial parts of the plant was prepared according to the method which was recommended in British Pharmacopoeia by using hydrodistillation. The chemical composition of the oil was investigated by gas chromatography mass spectroscopy (GC/MS). Results: Thirty-seven compounds were identified; among them β-caryophyllene, α-humulene and epimanoyl oxide were dominant. Sesquiterpenoids were the most dominant compounds in the essential oil while monoterpenoides, fatty acids and diterpenoides were found to be less. These outcomes are a little bit different from what has been reported before. Conclusion: The differences between the results of the present study with previous works could be due to the diversity of variety, polymorphism, stage of plant growth and environmental factors.
Foods, 2016
Volatile composition of essential oils from dill, parsley, coriander, and mint were investigated at different harvest dates to determine the most suitable harvest time for each these herbs. Hydrodistillation (HD), using a Deryng system, was used for isolating the essential oils. Isolation and identification of the volatile compounds were performed using gas chromatography-mass spectrometry (GC-MS) instrument. The results of gas chromatography-flame ionization detector (GC-FID) analysis (quantification) showed that the main components in the essential oil of dill shoots were α-phellandrene, dill ether, and β-phellandrene, and the optimal harvest date was D2 (second harvest, fourth week of February 2015). For parsley shoots, the main compounds were 1,3,8-p-menthatriene, β-phellandrene, and P1 (first harvest, third week of November 2014) was the sample with the highest essential oil. For coriander, the main compounds were E-2-dodecenal, dodecanal, and octane and the highest contents were found at C2 (second harvest, 5 February 2015); while, the main two components of mint essential oil were carvone and limonene, and the highest contents were found at M1 (first harvest, second week of December 2014). The present study was the first one reporting data on descriptive sensory analysis of aromatic herbs at this optimal harvest date according to the content of volatile compounds of their essential oils.
Chemistry & Biodiversity, 2009
Composition of Helichrysum italicum subsp. italicum essential oil showed chemical variability according to vegetation cycle, environment, and geographic origins. In the present work, 48 individuals of this plant at different development stages and the corresponding root soils were sampled: i) 28 volatile components were identified and measured in essential oil by using GC and GC/MS; ii) ten elements from plants and soils have been estimated using colorimetry in continuous flux, flame atomic absorption spectrometry, or emission spectrometry (FAAS/FAES); iii) texture and acidity (real and potential) of soil samples were also reported. Relationships between the essential-oil composition, the inorganic plant composition, and the soil characteristics (inorganic composition, texture, and acidity) have been established using multivariate analysis such as Principal Component Analysis (PCA) and partial Redundancy Analysis (RDA). This study demonstrates a high level of intraspecific differences in oil composition due to environmental factors and, more particularly, soil characteristics.
Volatiles of Helichrysum italicum (Roth) G. Don from Croatia
Natural Product Research, 2015
Helichrysum italicum (Roth) G. Don is a flowering plant of the family Asteraceae. It is rich in oil that is used for different medicinal purposes and in fragrance industry. Volatile profile of four populations of H. italicum, collected from natural habitat in Dalmatia (Croatia), was analysed by capillary GC-MS. Sample from BraČ Island had α-trans-bergamotene (10.2%) and β-acoradiene (10.1%) as the majors, whereas sample collected on Biokovo Mt. was rich in neryl acetate (8.1%). β-Acoradiene was also the main constituent of sample collected near Tijarica, whereas rosifoliol (8.5%) was the most abundant constituent in sample collected near Makarska. Presented results show the influence of environmental conditions on chemical differentiation of the volatiles of H. italicum from Croatia.
Altitude and climate influence Helichrysum italicum subsp. microphyllum essential oils composition
Industrial Crops and Products, 2016
Helichrysum italicum (Asteraceae) is a small shrub of the Mediterranean area which colonizes a wide range of habitats. In Sardinia, Italy, the species is widely dispersed in different environments ranging from sandy beaches to holm hoak forests 1250 m above sea level (a. s. l.). Recently, the species has been attributed an increasing economical value mainly for its pharmacological, aromatic proprieties and ornamental uses. In this study, the chemical profiles of 146 H. italicum ssp. microphyllum genotypes from two contrasting habitats (seaside and mountains) in Sardinia were explored. Significant differences in volatile fractions between the two groups were found, displaying a correlation between secondary metabolite production and habitat type. Multivariate analysis of variance revealed that monoterpenes, sesquiterpenes (oxygenated/not oxygenated), alcohols, ester were quantitatively differentially produced in the plants growing under different environmental conditions (P < 0.0001). However, discriminant analysis also showed that compositional separation among samples is not simply the question if the habitat is from the coast or the mountains: plants from four seaside sites separate most remarkably from the rest, and in the latter plants from three mountain sites become distinct. It means that there is a fairly homogeneous and large group of plants in which habitat type is not a distinguishing feature regarding volatile oil composition. Considering the importance of climatic conditions in plant development and growth, the relationship between meteorological variables and chemical compounds of the volatile fraction was explored by principal component analysis. Nerolidol is mostly positively correlated to mean winter temperature, while italicene, bergamotene, nerol and curcumene are positively influenced by spring and summer precipitation. Finally, Mantel test revealed a significant correlation (Spearman, P = 0.002) between chemical and meteorological matrices of Euclidean distances, suggesting that the most diverse chemical profiles belonged to plants from the farther climatic locations.
South African Journal of Botany, 2023
Allophylus edulis (Sapindaceae), also known as "chal-chal", "vacuum" or "cocu", is a tree widely found in Brazil whose leaves are still used in folk medicine and are rich in essential oil. The focus of this research was to investigate the chemical composition profiles of the essential oil from A. edulis leaves collected seasonally (the four seasons) in two cities. The A. edulis leaves were collected in winter (July) and spring (November) 2018 and summer (January) and autumn (May) 2019, in the cities of Bonito and Dourados, in the state of Mato Grosso do Sul, Brazil. The essential oils were extracted by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GCÀMS). The essential oil yield in this seasonal variation study consistently ranged between 0.07% and 0.6% (wet wt.) for all samples, increasing considerably with higher temperature and during the inflorescence stage. In the oil samples obtained from Dourados, the major components present were a-pinene, caryophyllene oxide, and viridiflorol with yields of 3.04À29.81% across all four seasons, being caryophyllene oxide the most abundant (20.1À29.81%). The major compound identified in the oil samples obtained from Bonito was a-zingiberene for all four seasons, though its concentrations were highest in summer (46.90%) and spring (45.05%). The chemical composition profiles of both cities' oil samples were similar, in that they shared four sesquiterpene compounds, caryophyllene oxide, germacrene D, E-caryophyllene and viridiflorol. The study highlighted that both seasonal and geographical variation can influence the chemical composition of essential oil from A. edulis.