Phytochemicals and GC–MS analysis of bioactive compounds present in ethanolic leaves extract of Taraxacum officinale (L).

Abstract

Objective:To identify the phytochemical constituents present in ethanolic leaves extract of Taraxacum officinale (T. o) and to elucidate the bioactive compounds. Methods: The fresh leaves of T. officinale (1000g) were shade dried at room temperature for 30 days and the dried leaves were made into a fine powder. The ethanolic leaves extract obtained was dried with help of desiccator and rotatory evaporator. The dried samples tested for phytochemical analysis and bioactive compounds profiling through GC-MS analysis. Results: The phytochemical screening studies showed presence of alkaloids, flavonoids, phenol, cardiac glycosides and anthraquinones. in the leaves extract of T. officinale. GC-MS analysis showed 10 essential bioactive compounds and it revealed the presence of significant anticancer, Antimicrobial and antidiabetic compounds. Conclusions: The ethanol extract of T. o possess the most important phytochemical compounds and it has various medicinal properties to cure dangerous diseases and disorders.

Chemical composition, antibacterial and antioxidant activities of essential oils extracted from dry and fresh Brocchia cinerea (Vis.)

“…This result is in agreement with many studies performed on other plant species like Eucalyptus cinerea, Eucalyptus globulus, Rosmarinus officinalis, Salvia officinalis, Citrus limon (Elaissi et al 2011;Radulović et al 2017;Ed-Dra et al 2020). Furthermore, the percentage of the acetone was 41.65 % in fresh plant and 33.93 % in the dry plant, including the presence of thujone and 2-bornanone, which are described as being very active against microorganisms (Radulović et al 2017;Castner and Henry 2018;Sasikala et al 2019). However, the alcoholic components present in the EOs possess a significant bactericidal activity (Ed-Dra et al 2020), in which the percentage of alcohols in the EOs extracted from the fresh and dry aerial part of B. cinerea were 8.08 % and 7.52% respectively.…”

“…EOs were quite complex mixtures, and this complexity makes it difficult to explain their activity patterns. The antioxidant activity of certain phenolic compounds and other pure substances was previously demonstrated, while the antioxidant power of EOs refers often to such concepts as synergism, antagonism, and additively (Harkat-Madouri et al 2015;Sasikala et al 2019). Generally, the antioxidant activity of EOs depends on the content of phenolic compounds and the reaction activity of the phenol towards the chain-carrying peroxyl radicals and the stability of the phenoxyl radical formed in the reaction (Harkat-Madouri et al 2015).…”

GC/MS and LC–MS Analysis and in‐vitro Antioxidant Activity of Essential Oil and Crude Methanol Extract from the Leaves of Acacia Gerrardii Benth. Growing in Saudi Arabia

“…Because EOs are complex mixtures of compounds, understanding their behavior is challenging. Although the antioxidant power of EO frequently often involves concepts, such as synergism, antagonism, and additivity, the antioxidant activity of some phenolic compounds and other pure substances has already been established [44,45] . The moderate efficiency of ACG EO demonstrated in the three different assays was attributed to a higher amount of oxygenated monoterpenes, supporting the plant‘s ability to act as a radical scavenger.…”

“…Although the antioxidant power of EO frequently often involves concepts, such as synergism, antagonism, and additivity, the antioxidant activity of some phenolic compounds and other pure substances has already been established. [44,45] The moder-ate efficiency of ACG EO demonstrated in the three different assays was attributed to a higher amount of oxygenated monoterpenes, supporting the plant's ability to act as a radical scavenger. Conversely, sesquiterpene hydrocarbons and their oxygenated derivatives were deficient in their antioxidant activities.…”