Chemical composition of the essential oil of Thymus longicaulis C. Presl. subsp. longicaulis

Abstract

In this study, the chemical composition of the essential oils obtained from the aerial parts of Thymus longicaulis subsp. longicaulis naturally grown in Turkey were analyzed by GC and GC-MS and chemical differences in terms of chemotaxonomy were discussed. The main compounds in the essential oils of T. longicaulis subsp. longicaulis essential oils were 1,8-cineole (30.1%), linalool (18.0%), β-pinene (17.3%) and (E)-β-ocimene (%12.6%) Hierarchical cluster analysis was performed by examining essential oil studies of 34 samples belonging to the genus Thymus, including the Sinop sample. The results of the study were discussed with other taxa belonging to the genus.

Volatile Oil Yield and Composition, Total Phenolic Content, Antioxidant Activity and Secondary Metabolite Content of Collected Thymus praecox Species in Rize

“…The main compounds in the essential oils of T. longicaulis subsp. longicaulis C.Presl essential oils were 1,8‐cineole (30.1 %), linalool (18.0 %), β‐pinene (17.3 %) and (E)‐β‐ocimene (12.6 %) [14] …”

“…longicaulis C.Presl essential oils were 1,8-cineole (30.1 %), linalool (18.0 %), β-pinene (17.3 %) and (E)-β-ocimene (12.6 %). [14] Further, in 18 different T. pulegioides L. genotypes 5 linalool chemotypes, 2 geraniol-citral chemotypes, 1 geraniol chemotype, 5 carvacrol chemotypes and 3 thymol chemotypes were detected. [15] The highest volatile oil components of Thymus quinquecostatus Celak samples collected from 4 locations in China were 1,8-cineole (1.84-10.16 %), linalool (1.22-12.80 %), terpinenol (1.03-10.56 %), thymol (0.10-16.32 %), carvacrol ethyl ether (23.32-31.80 %) and p-vinyl guaiacol (3.97-23.55 %).…”

“…Table 5. Gallocatechin (1), chlorogenic acid (2), catechin (3), caffeic acid (4), epigallocatechin (5), 2,4-dihydroxybenzoic acid (6), rutin (7), p-coumaric acid (8), isoquercitrin (9), quercitrin (10), rosmarinic acid (11), luteolin (12), quercetin (13), apigenin (14), carvacrol (15) and thymol ( 16) content (mg/g DW) in whole plant material of Thymus praecox genotypes (collected from the Rize Flora and cultivated in the Field), Türkiye. Principal Component Analysis (PCA) and Cluster Analysis tools are useful in characterization of genotypes and related grouping calculated on similarity basis.…”

Toksijenik Aspergillus flavus’un Büyümesini Kontrol Etmek için Thymus longicaulis’in Değerlendirilmesi

“…Antimikrobiyal ve antifungal etkinliği bilinen Thymus longicaulis'in [9] literatürde A. flavus' un büyümesi üzerine olan etkisinin ayrıntılı bir şekilde in vitro ve in vivo incelenmesine rastlanılmamıştır. Bu projede Lamiaceae familyasına ait T. longicaulis sulu ekstraktlarının gıdalarda bozulmalara neden olan ve aflatoksin üretme yeteneğindeki A. flavus'un üzerine antifungal etkinliğinin in vitro ve in vivo değerlendirilmesi amaçlanmıştır.…”