Chemical composition of essential oils from Eucalyptus globulus and Eucalyptus maculata grown in Tanzania

Phytochemical Properties and Diverse Beneficial Roles of Eucalyptus globulus Labill.: A Review

“…Additionally, triterpene compounds that possess significant pharmaceutical applications have been previously identified in Eucalyptus leaves, bark, and fruits [62][63][64]. Leaves 1,8-cineole (80.2%), p-cymene (6.6%), and limonene (5%) [10] Leaves D-limonene (23.5%), m-cymene (24.8%), o-cymene (9.9 and 5.4%), 6-camphenol (7.2 and 10.7%), terpinen-4-ol (5.2 and 4.5%), and globulol (4.0 and 12.9%) [34] Leaves Eucalyptol (51.62%), α-pinene (23.62%), p-cymene (10%), β-myrcene (8.74%), terpinen-4-ol (2.74%), and γ-terpinene (2.59%) [22] Leaves 1,8-cineol (67.4 and 67.6%) and α-pinene (12.8 and 13.1%) [21] Fruits Aromadendrene (31.17%), 1,8-cineole (14.55%), globulol (10.69%), and ledene (7.13%) [43] Fruits Globulol (23.6%), aromadendrene (19.7%), 1,8-cineole (19.8%), and α-pinene (3.8%) [44] Bark Polyphenol and tannin [61] Deciduous bark Fatty acids, aliphatic alcohols, sterols, and triterpenoids [63] Bark Polygalloyl glucoses (gallotannins), catechin, epicatechin, ellagic acid, quercetin-3-o-rhamnoside, and isorhamnetin (phenolic compounds) [67] Stump Phenolic compounds and flavonoids [57] The anthelmintic activity of the essential oil from extracted leaves has been previously reported by Taur et al [41]. This has been ascribed to the occurrence of valuable phytoconstituents in the oil, such as borneol, linalool, cineol, geranyl acetate, anethol, and saffrol.…”

“…The predominance of Eucalyptol is overwhelming, as seen in the previous studies (Table 1). It has been formerly mentioned that oil from cultivated plants, from diverse regions of the world, denote the following various percentages: 86.51% in Germany [3], 85.8% in Montenegro [9], 80.2% in Turkey [10], 76.65% in Iran [11], 75.8% in Brazil [12], 71.05% in Brazil [1], 69.32% in Brazil [23], 63.81% in Spain [13], 63.00% in Ethiopia [14], 62.38% in Ethiopia [15], 59.63% in Serbia [16], 56.83% in Algeria [33], 55.43% in Ethiopia [24], 55.29% in Algeria [20], 54.79% in India [4], 51.62% in Tanzania [22], 51.08% in Algeria [5], 48.2% in Tunisia [35], 46.76% in Egypt [37], 36.68% in Portugal [6], 23.3% in Nigeria [7], and 22.35% in Morocco [8]. It is observed from the above cited studies that the patterns of leaf essential oil compositions differ notably in the plants cultivated in different locations, which consequently reflect on their biological activities.…”

“…is the main source of the Eucalyptus leaf oil used globally [3]. Its leaves are alternate, with yellowish petioles, precisely lanceolate, 10-30 cm long, 2.5-5 cm wide, shiny dark green on both surfaces, and are a rich source of essential oil [7,10,[20][21][22]. The oil is typically extracted by hydrodistillation, as the greatest amount of extracted chemical compounds can be obtained by utilizing this method [4,15,21].…”

“…This is attributable to its pleasant spicy aroma and taste. It is also used in mouthwash applications and cough suppressants [22]. The commercial value of the essential oil depends chiefly on the existence of 1,8-cineole [9,26].…”

Ultrasound extraction optimization for bioactive molecules from Eucalyptus globulus leaves through antioxidant activity

“…The leaves and fine branches of eucalyptus have a large number of phenolic compounds that can be valorized by different industrial sectors, among which the pharmaceutical, sanitary, agricultural and food industries could be highlighted [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] . Recently, several studies have been conducted using Eucalyptus globulus leaves to study the potential capacity of these plants as antioxidants [3] , [11] , [12] , [13] .…”