ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL
Sinningia reitzii (Hoehne) L. E. Skog (Gesneriaceae) is a subshrub native to Brazil, where it is distributed in two disjunctive populations around the 26°S and 23°S parallels. In this work, tubers of plants from the wild population growing at the 26°S parallel (Santa Catarina state) yielded two new...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2021-05-01
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| Series: | Química Nova |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422021000300284&tlng=en |
| _version_ | 1798020552519057408 |
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| author | Vanessa Winiewski Adson S. Silva Kattleen D. C. Alvarez Eduardo L. de Sá Marcos J. Salvador Maria Élida A. Stefanello |
| author_facet | Vanessa Winiewski Adson S. Silva Kattleen D. C. Alvarez Eduardo L. de Sá Marcos J. Salvador Maria Élida A. Stefanello |
| author_sort | Vanessa Winiewski |
| collection | DOAJ |
| description | Sinningia reitzii (Hoehne) L. E. Skog (Gesneriaceae) is a subshrub native to Brazil, where it is distributed in two disjunctive populations around the 26°S and 23°S parallels. In this work, tubers of plants from the wild population growing at the 26°S parallel (Santa Catarina state) yielded two new naphthoquinones, 5,6-dihydroxy-7-methoxy-a-dunnione and 8-hydroxy-6,7-dimethoxy-a-dunnione. Three known compounds were also isolated: 6,8-dihydroxy-7-methoxy-a-dunnione, 5-hydroxy-6,7-dimethoxy-a-dunnione, and 6,8-dihydroxy-7-methoxy-2-O-methyldunniol. The naphthoquinones 6,8-dihydroxy-7-methoxy-2-O-methyldunniol, 6,8-dihydroxy-7-methoxy-a-dunnione, and 5,6-dihydroxy-7-methoxy-a-dunnione displayed antioxidant activity in the ORAC-FL method, with values of relative trolox equivalent in the range of 1.39-4.83 mmol g-1. |
| first_indexed | 2024-04-11T16:59:25Z |
| format | Article |
| id | doaj.art-b82deb720ed6417e9d057000fd6f45bb |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-04-11T16:59:25Z |
| publishDate | 2021-05-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-b82deb720ed6417e9d057000fd6f45bb2022-12-22T04:13:12ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642021-05-0144328428710.21577/0100-4042.20170682ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZILVanessa WiniewskiAdson S. SilvaKattleen D. C. AlvarezEduardo L. de SáMarcos J. SalvadorMaria Élida A. Stefanellohttps://orcid.org/0000-0001-5821-6339Sinningia reitzii (Hoehne) L. E. Skog (Gesneriaceae) is a subshrub native to Brazil, where it is distributed in two disjunctive populations around the 26°S and 23°S parallels. In this work, tubers of plants from the wild population growing at the 26°S parallel (Santa Catarina state) yielded two new naphthoquinones, 5,6-dihydroxy-7-methoxy-a-dunnione and 8-hydroxy-6,7-dimethoxy-a-dunnione. Three known compounds were also isolated: 6,8-dihydroxy-7-methoxy-a-dunnione, 5-hydroxy-6,7-dimethoxy-a-dunnione, and 6,8-dihydroxy-7-methoxy-2-O-methyldunniol. The naphthoquinones 6,8-dihydroxy-7-methoxy-2-O-methyldunniol, 6,8-dihydroxy-7-methoxy-a-dunnione, and 5,6-dihydroxy-7-methoxy-a-dunnione displayed antioxidant activity in the ORAC-FL method, with values of relative trolox equivalent in the range of 1.39-4.83 mmol g-1.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422021000300284&tlng=enGesneriaceaeSinningia reitziinaphthoquinonesantioxidant activity |
| spellingShingle | Vanessa Winiewski Adson S. Silva Kattleen D. C. Alvarez Eduardo L. de Sá Marcos J. Salvador Maria Élida A. Stefanello ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL Química Nova Gesneriaceae Sinningia reitzii naphthoquinones antioxidant activity |
| title | ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL |
| title_full | ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL |
| title_fullStr | ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL |
| title_full_unstemmed | ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL |
| title_short | ANTIOXIDANT NAPHTHOQUINONES OF Sinningia reitzii FROM SANTA CATARINA STATE, BRAZIL |
| title_sort | antioxidant naphthoquinones of sinningia reitzii from santa catarina state brazil |
| topic | Gesneriaceae Sinningia reitzii naphthoquinones antioxidant activity |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422021000300284&tlng=en |
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