EXTRACTION, QUANTIFICATION, AND FTIR CHARACTERIZATION OF BARK TANNINS OF FOUR FOREST SPECIES GROWN IN NORTHEAST BRAZIL
ABSTRACT Condensed tannins are chemical compounds derived from the secondary metabolism of plants. They are of particular interest due to their broad range of technological uses and applications. The objective of this study was to extract, quantify, and characterize by Fourier-transform infrared spe...
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| Format: | Article |
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Sociedade de Investigações Florestais
2021-11-01
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| Series: | Revista Árvore |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622021000100241&tlng=en |
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| author | Sarah Rebeka Rodrigues Marques Tatiane Kelly Barbosa Azevêdo Aline Rogéria Freire de Castilho Renata Martins Braga Alexandre Santos Pimenta |
| author_facet | Sarah Rebeka Rodrigues Marques Tatiane Kelly Barbosa Azevêdo Aline Rogéria Freire de Castilho Renata Martins Braga Alexandre Santos Pimenta |
| author_sort | Sarah Rebeka Rodrigues Marques |
| collection | DOAJ |
| description | ABSTRACT Condensed tannins are chemical compounds derived from the secondary metabolism of plants. They are of particular interest due to their broad range of technological uses and applications. The objective of this study was to extract, quantify, and characterize by Fourier-transform infrared spectroscopy (FTIR) the bark tannins of four forest species grown in Northeast Brazil: Acacia mangium, Azadirachta indica, Mimosa tenuiflora, and Mimosa caesalpiniifolia. Bark samples were collected from 5 trees of each species grown in a five-year-old forest stand. Samples were collected, grounded, and submitted to extraction with hot water, then measured to determine total solids content (TSC), Stiasny number (SN), and condensed tannins content (CTC). FTIR spectra were acquired from tannin samples fixed in potassium bromide pellets. Among the four species, M. tenuiflora presented the highest CTC, equal to 23.4%, and the purest crude hot-water extract with SN of 91.27%. Based on FTIR characterization, tannins from M. caesalpiniifolia, A. indica, and A. mangium barks were classified as proanthocyanidins and those from M. tenuiflora bark as prodelphinidins. |
| first_indexed | 2024-12-18T02:53:55Z |
| format | Article |
| id | doaj.art-d52d44505d60459e8baa9ce1a79e4eb5 |
| institution | Directory Open Access Journal |
| issn | 1806-9088 |
| language | English |
| last_indexed | 2024-12-18T02:53:55Z |
| publishDate | 2021-11-01 |
| publisher | Sociedade de Investigações Florestais |
| record_format | Article |
| series | Revista Árvore |
| spelling | doaj.art-d52d44505d60459e8baa9ce1a79e4eb52022-12-21T21:23:24ZengSociedade de Investigações FlorestaisRevista Árvore1806-90882021-11-014510.1590/1806-908820210000041EXTRACTION, QUANTIFICATION, AND FTIR CHARACTERIZATION OF BARK TANNINS OF FOUR FOREST SPECIES GROWN IN NORTHEAST BRAZILSarah Rebeka Rodrigues Marqueshttps://orcid.org/0000-0003-4373-5755Tatiane Kelly Barbosa Azevêdohttps://orcid.org/0000-0001-6392-3548Aline Rogéria Freire de Castilhohttps://orcid.org/0000-0003-4704-6973Renata Martins Bragahttps://orcid.org/0000-0002-6232-0945Alexandre Santos Pimentahttps://orcid.org/0000-0002-2134-2080ABSTRACT Condensed tannins are chemical compounds derived from the secondary metabolism of plants. They are of particular interest due to their broad range of technological uses and applications. The objective of this study was to extract, quantify, and characterize by Fourier-transform infrared spectroscopy (FTIR) the bark tannins of four forest species grown in Northeast Brazil: Acacia mangium, Azadirachta indica, Mimosa tenuiflora, and Mimosa caesalpiniifolia. Bark samples were collected from 5 trees of each species grown in a five-year-old forest stand. Samples were collected, grounded, and submitted to extraction with hot water, then measured to determine total solids content (TSC), Stiasny number (SN), and condensed tannins content (CTC). FTIR spectra were acquired from tannin samples fixed in potassium bromide pellets. Among the four species, M. tenuiflora presented the highest CTC, equal to 23.4%, and the purest crude hot-water extract with SN of 91.27%. Based on FTIR characterization, tannins from M. caesalpiniifolia, A. indica, and A. mangium barks were classified as proanthocyanidins and those from M. tenuiflora bark as prodelphinidins.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622021000100241&tlng=enForest species barkProanthocyanidinsProdelphinidins |
| spellingShingle | Sarah Rebeka Rodrigues Marques Tatiane Kelly Barbosa Azevêdo Aline Rogéria Freire de Castilho Renata Martins Braga Alexandre Santos Pimenta EXTRACTION, QUANTIFICATION, AND FTIR CHARACTERIZATION OF BARK TANNINS OF FOUR FOREST SPECIES GROWN IN NORTHEAST BRAZIL Revista Árvore Forest species bark Proanthocyanidins Prodelphinidins |
| title | EXTRACTION, QUANTIFICATION, AND FTIR CHARACTERIZATION OF BARK TANNINS OF FOUR FOREST SPECIES GROWN IN NORTHEAST BRAZIL |
| title_full | EXTRACTION, QUANTIFICATION, AND FTIR CHARACTERIZATION OF BARK TANNINS OF FOUR FOREST SPECIES GROWN IN NORTHEAST BRAZIL |
| title_fullStr | EXTRACTION, QUANTIFICATION, AND FTIR CHARACTERIZATION OF BARK TANNINS OF FOUR FOREST SPECIES GROWN IN NORTHEAST BRAZIL |
| title_full_unstemmed | EXTRACTION, QUANTIFICATION, AND FTIR CHARACTERIZATION OF BARK TANNINS OF FOUR FOREST SPECIES GROWN IN NORTHEAST BRAZIL |
| title_short | EXTRACTION, QUANTIFICATION, AND FTIR CHARACTERIZATION OF BARK TANNINS OF FOUR FOREST SPECIES GROWN IN NORTHEAST BRAZIL |
| title_sort | extraction quantification and ftir characterization of bark tannins of four forest species grown in northeast brazil |
| topic | Forest species bark Proanthocyanidins Prodelphinidins |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622021000100241&tlng=en |
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