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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Do Nascimento, Georgia Erdmann Iacomini, Marcello Cordeiro, Lucimara M. C. |
| Description | Country affiliation: Brazil Author Affiliation: do Nascimento GE ( Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19.046, CEP 81.531-980, Curitiba, PR, Brazil.); Iacomini M ( Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19.046, CEP 81.531-980, Curitiba, PR, Brazil.); Cordeiro LM ( Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19.046, CEP 81.531-980, Curitiba, PR, Brazil. Electronic address: lucimaramcc@ufpr.br.) |
| Abstract | A comparative study of mucilage (locular tissue) and pulp polysaccharides from ripe tamarillo fruits (Solanum betaceum Cav.) was carried out. After aqueous and alkaline extractions and various purification steps (freeze-thaw and -amylase - EC 3.2.1.1 treatments, Fehling precipitation and ultrafiltration through 50 kDa cut-off membrane), the obtained fractions from mucilage were analyzed by sugar composition, HPSEC, and NMR spectroscopy analyses. The results showed that the mucilage of tamarillo contains a highly methoxylated homogalacturonans mixed with type I arabinogalactans, a linear (1 â 5)-linked -L-arabinan, and a linear (1 â 4)-ß-D-xylan. A comparison with polysaccharides extracted from the pulp revealed that differences were observed in the yield and in the ratio of extracted polysaccharides. Moreover, structural differences between pulp and mucilage polysaccharides were also observed, such as in the length of side chains of the pectins, and in the degree of branching of the xylans. |
| File Format | HTM / HTML |
| ISSN | 09819428 |
| Journal | Plant Physiology and Biochemistry |
| Volume Number | 104 |
| e-ISSN | 18732690 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-07-01 |
| Publisher Place | France |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Botany Discipline Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Physiology Plant Science |
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