GC-MS analysis of esterified fatty acids obtained from leaves and seeds of Triplaris gardneriana Wedd.

Abstract

Triplaris gardneriana Wedd. belongs to the family Polygonaceae. In Brazil, the plant is known as "Pajéu". The plant has a traditional use in folk medicine for the treatment of some human diseases. In this study, it was realized for first time, the extraction and characterization by gas chromatographymass spectrometry (GC-MS) of the fixed oils from the leaves and seeds of T. gardneriana collected at different times and it was evaluated the antioxidant and antibacterial activities. The esters were identified by comparing the mass spectra obtained with those of the equipment database. The antioxidant activity was evaluated by the methods of radical scavenging 2,2-diphenyl-1-picrylhydrazyl (DPPH) and co-oxidation of β-carotene against linoleic acid. The antibacterial effect was evaluated by the microdilution broth method. In the fixed oil of the leaves were identified 22 compounds, totaling 61.53%. Methyl palmitate (15.14%) and methyl oleate (14.35%) were the majoritary compounds. For the sample of the seeds fixed oil, 13 compounds were identified, representing 97.81%. Among these, 10-Octadecenoic acid, methyl ester (45.53%) was identified as majoritary constituent. The oils do not show antioxidant activity, but showed moderate antibacterial activity. The fatty acid composition of the fixed oils showed differences, noting a greater variety of constituents in the leaf oil. The presence of these compounds in the studied plant is important phytochemically because it contributes to the chemical and pharmacological knowledge of this specie.

Coccoloba alnifoliaLeaf Extract as a Potential Antioxidant Molecule Using In Vitro and In Vivo Assays

“…The Polygonaceae (Caryophyllales) has approximately 51 genera and 1100 species distributed throughout various biomes worldwide. Some species are used as ornamental plants, some are cultivated for medicinal purposes, and some are economically important for the supply of wood for the production of household items [ 8 ]. The genus Coccoloba consists of approximately 46 species.…”

ANÁLISE BROMATOLÓGICA DO ÓLEO DE COCO (Cocos nucifera L.) E DO ÓLEO DE ABACATE (Persea americana Mill.)

“…Devido ao amplo espectro de atividades biológicas da espécie, a química ganhou importância, evidenciando a presença de uma série de compostos. Dentre eles, fenóis e flavonoides (Macêdo et al, 2015;Almeida et al, 2017;Lopes Neto et al, 2017), terpenos (Carneiro et al, 2010;Macêdo, 2015), esteroides (Braz Filho;Rodrigues, 1974;Macêdo et al, 2016), ácidos e álcoois graxos (Macêdo et al, 2016).…”

RHODAMINE B PHOTODEGRADATION OVER Ag3 PO4 /SBA-15 UNDER VISIBLE RADIATION BASED ON WLEDS LIGHT

“…REFERÊNCIASAlmeida, T. S., 2016. Identificação, atividade antioxidante e análise toxicogenômica de compostos fenólicos de sementes de Triplaris gardneriana Wedd.…”