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| PIANA,MARIANA; BOLIGON,ALINE A.; BRUM,THIELE F. DE; ZADRA,MARINA; BELKE,BIANCA V.; FROEDER,AMANDA L.F.; FROHLICH,JANAÍNA K.; NUNES,LETÍCIA T.; PAPPIS,LAUREN; BOLIGON,ALEXANDRA A.; ATHAYDE,MARGARETH L.. |
| The antioxidant capacity of the crude extract and fractions ofTabernaemontana catharinensis fruits and branches, was evaluated by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method and the content of polyphenols, flavonoids, alkaloids and condensed tannins were determined by the spectrophotometric method. The ethyl acetate fraction of the fruits and the n-butanol fraction of the branches showed IC50 of 181.82 µg/mL and 78.19 µg/mL, respectively. All fractions were analyzed by high performance liquid chromatography (HPLC), in the branches were quantified chlorogenic acid in the chloroform (8.96 mg/g), ethyl acetate (4.31 mg/g) and n-butanol (3.33 mg/g) fractions; caffeic acid in the ethyl acetate (5.24 mg/g) and n-butanol (1.81 mg/g); gallic acid (0.52 mg/g)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant capacity; Apocynaceae; Chlorogenic acid; Tabernaemontana catharinensis. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200881 |
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| TEDESCO,MARÍLIA; KUHN,ANDRIELLE W.; FRESCURA,VIVIANE DAL-SOUTO; BOLIGON,ALINE A.; ATHAYDE,MARGARETH L.; TEDESCO,SOLANGE B.; SILVA,ANTONIO C.F. DA. |
| ABSTRACT The purpose of this study was to evaluate the antiproliferative and antigenotoxic activity of Sambucus australis Cham. & Schltdl. aqueous extracts on the cell cycle of Allium cepa L. as well as determine the phenolic compounds in such extracts. S. australis inflorescences and leaves of two accessions were used for aqueous extract preparation at concentrations: 0.003 g/ml and 0.012 g/ml. A. cepa bulbs were rooted in distilled water and, subsequently, placed in treatments for 24 hours. Rootlets were collected and fixed in modified Carnoy’s solution for 24 hours and kept. The squash technique was performed for slide preparation. Root tips were smashed and stained with 2% acetic orcein, and a total of 4000 cells per treatment were analyzed. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Medicinal plants; Mitotic index; Allium cepa; Sabugueiro; High-performance liquid chromatography. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502141 |
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| BOLIGON,ALINE A.; PIANA,MARIANA; BRUM,THIELE F. DE; FROEDER,AMANDA L.F.; BELKE,BIANCA V.; SCHWANZ,THIAGO G.; MARIO,DÉBORA N.; ALVES,SYDNEY H.; ATHAYDE,MARGARETH L.. |
| The volatile oil from the stem bark of Scutia buxifolia (Rhamnaceae) has been obtained by hydrodistillation and analyzed by GC-MS. Twenty-one components were identified representing 99.93 % of the total oil composition, spathulenol (35.87%), β-cubebene (17.26%), germacrene D (6.43%), linalool (5.19%), carvacrol (4.05%) were the main components of S. buxifolia essential oil. Antioxidant and antimicrobial properties of the essential oil were evaluated by free radical scavenging (DPPH) assay and micro broth dilution method, respectively. S. buxifolia essential oil presented interesting radical scavenging activity (IC50 = 15.03 ± 0.11 µg/mL). The antibacterial assay showed that S. buxifolia stem bark essential oil was moderately active against the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scutia buxifolia; Essential oil; Antioxidant; Antimicrobial. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301463 |
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