Physicochemical characterization of a new raw material obtained from leaves of Syzygium cumini (L.) Skeel (Myrtaceae)

The aim of this study was to determine the physicochemical characteristics of leaves of Syzygium cumini L. Skeels plant and characterize the extract of this plant by analytical techniques. Pharmacopeial methods of physicochemical analysis were used, including morphological characterization of the pa...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2017-02, Vol.127 (2), p.1137-1141
Main Authors: Cartaxo-Furtado, Nathália Alexandra de Oliveira, de Castilho, Aline Rogéria Freire, Freires, Irlan Almeida, Santana, Cleildo Pereira, Sampaio, Thaíse Oliveira, Xavier, Myllena Alves, de Medeiros, Ana Claudia Dantas, Alves, Harley da Silva, Costa, Edja Maria Melo de Brito, Rosalen, Pedro Luiz, Pereira, Jozinete Vieira
Format: Article
Language:English
Subjects:
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Functional groups
Herbal medicine
Infrared spectroscopy
Inorganic Chemistry
Leaves
Mathematical analysis
Measurement Science and Instrumentation
Morphology
Particle physics
Pharmacology
Physical Chemistry
Polymer Sciences
Thermal analysis
Thermal decomposition
X ray diffraction
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Summary:The aim of this study was to determine the physicochemical characteristics of leaves of Syzygium cumini L. Skeels plant and characterize the extract of this plant by analytical techniques. Pharmacopeial methods of physicochemical analysis were used, including morphological characterization of the particle, thermal analysis, infrared spectroscopy and X-ray diffraction. The plant drug was presented as a coarse powder, within the appropriate Brazilian Pharmacopoeia parameters. The X-ray diffraction, optical microscopy and scanning electron microscopy suggested that the extract particles are amorphous and have irregular shapes, so that clusters of different sizes and morphologies are displayed. Thermal decomposition of the organic components in the sample started in a step that occurred between 151.64 and 209.27 °C with mass loss of 9.08 %, followed by another step with more significant mass loss (28.16 %). The infrared spectrum, in turn, showed many functional groups of compounds present in the lyophilized extract in different absorption bands. The results showed that the analytical techniques allowed us to characterize the physicochemical properties of the plant leaves, which may be useful in the production of new herbal medicines.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-016-5483-x