Estudo fitoquímico de Hydrangea sp. por meio de métodos clássicos de análise por espectroscopia no ultravioleta visível (UV-Vis) e cromatografia em coluna e em papel
| Autor: | Jaqueline Nicolini, Keller Paulo Nicolini, Fabiele Bernardi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Lutein
carotenoides clorofila Hydrangea lcsh:Medicine lcsh:RS1-441 Biology 01 natural sciences lcsh:Pharmacy and materia medica chemistry.chemical_compound Pigment 0404 agricultural biotechnology Botany Ornamental plant Carotenoid chemistry.chemical_classification 010401 analytical chemistry lcsh:R 04 agricultural and veterinary sciences biology.organism_classification 040401 food science Lycopene 0104 chemical sciences Horticulture chemistry Phytochemical Chlorophyll visual_art visual_art.visual_art_medium |
| Zdroj: | Infarma: Pharmaceutical Sciences, Vol 29, Iss 1, Pp 68-80 (2017) |
| ISSN: | 2318-9312 0104-0219 |
| Popis: | The phytochemical research is an issue that can be approach by several areas of science. The Hydrangea sp., also known in Brazil, as “hortensia” is an ornamental plant widely known because the presence of flavonoids, a class of antioxidant compounds, which can interact with aluminum ions in the soil, changing the color of the sepals of the Hydrangea flowers. In this work, the objective was to extract chlorophyll from leaves of Hydrangea sp. using three different solvents (dichloromethane, acetone and aqueous solution of acetone, 80 %). The obtained results indicated that in addition to chlorophyll, there were strong spectroscopic evidence of the presence of the carotenoids β-carotene and/or lutein, and lycopene. The used method can be applied to explain that: i) the leaves are green by the presence of the pigment chlorophyll; however, ii) they not only contain chlorophyll in their constitution, also have yellow and reddish pigments and; iii) the aging leaves lose their green color, by the breakage of the resonance of the porphyrin ring from chlorophyll and hence the other colors in the plant predominates. |
| Databáze: | OpenAIRE |
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