Phytotoxic and antioxidant effects of dichloromethane fraction of Smilax Brasiliensis Sprengel

Dichloromethane (DCM) fraction and sub-fractions obtained from Smilax brasiliensis leaves were examined in order to determine their phytotoxic and antioxidant effects. The dichloromethane fraction was submitted to a preparative layer chromatography leading to seven sub-fractions (DCM1-DCM7). Gas chr...

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Bibliographic Details
Published in:Natural product research 2021-05, Vol.35 (10), p.1676-1681
Main Authors: Barbosa, Myriam Almeida, Fonseca, Juliana Costa, Ferraz, Vany, Castro, Ana Hortência Fonsêca, Alves Rodrigues dos Santos Lima, Luciana
Format: Article
Language:English
Subjects:
Antioxidant
Antioxidants
Antioxidants - chemistry
Antioxidants - pharmacology
Brazilian Cerrado
Chromatography
Dichloromethane
Gas chromatography
Gas Chromatography-Mass Spectrometry
Herbicides
Lactuca - drug effects
Mass spectrometry
Mass spectroscopy
Methyl esters
Methylene Chloride - chemistry
Onions - drug effects
Palmitates - analysis
Palmitic acid
Phytotoxicity
Plant Extracts - chemistry
Plant Extracts - pharmacology
Plant Extracts - toxicity
Plant Leaves - chemistry
Scavenging
Smilax
Smilax - chemistry
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Summary:Dichloromethane (DCM) fraction and sub-fractions obtained from Smilax brasiliensis leaves were examined in order to determine their phytotoxic and antioxidant effects. The dichloromethane fraction was submitted to a preparative layer chromatography leading to seven sub-fractions (DCM1-DCM7). Gas chromatography-mass spectrometry (GC-MS) was performed on the dichloromethane sub-fractions. The DCM sub-fractions presented phytotoxic potential; at a concentration of 125 µg per plate, DCM6 and DCM4 showed the strongest results on Lactuca sativa and Allium cepa, respectively. The DCM fraction and DCM4 sub-fraction were more effective than 2,6-di-tert-butyl-4-methylphenol (BHT) at scavenging the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical. Analysis by GC-MS showed the presence of methyl palmitate (33.05%) in DCM4 and methyl palmitate (17.29%) and methyl oleate (50.96%) in DCM6, suggesting that the activities exhibited by the sub-fractions may be attributed, at least partially, to these major compounds. These results indicate that the DCM sub-fractions of S. brasiliensis could be used as natural herbicides and antioxidants.
ISSN:1478-6419
1478-6427
DOI:10.1080/14786419.2019.1624955