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dc.creatorContado, Ellem Waleska Nascimento da Fonseca-
dc.creatorQueiroz, Estela de Rezende-
dc.creatorRocha, Denise Alvarenga-
dc.creatorFraguas, Rodrigo Martins-
dc.creatorSimão, Anderson Assaid-
dc.creatorBotelho, Lucimara Nazará Silva-
dc.creatorAbreu, Adneia de Fátima-
dc.creatorBraga, Mariana Aparecida-
dc.creatorAbreu, Celeste Maria Patto de-
dc.identifier.citationCONTADO, E. W. N. da F. et al. Extraction, quantification and degree of polymerization of yacon (Smallanthus sonchifolia) fructans. African Journal of Biotechnology, [S. l.]. v. 14, n. 21, p. 1783-1789, May 2015.pt_BR
dc.description.abstractYacon tubers have been a distinguished alternative of fructans, drawing the attention of researchers and food industries. Since fructans are carbohydrate reserves storage can reduce their contents. Additionally, the type of extraction used can provide a higher yield of fructans. Therefore, it was necessary to study yacon storage and its influence on the extraction and quantification of fructans. Thus, the objective of this study was to evaluate three fructan extractions (water 75°C, water 95°C, ethanol 90°C) in yacon with 3 sizes (large, medium, small), stored for 20 days, at room temperature as well as to compare two quantification techniques. The three extractions can be used when fructans are quantified by high performance liquid chromatography (HPLC). For quantification by spectrometry, the best extraction method was ethanol at 90°C. Medium and small-sized tubers presented the highest contents of fructans that large tubers, and storage negatively influenced these contents. Fructan quantification by HPLC was higher than the spectrophotometric technique. All treatments showed a degree of polymerization in the range from 3 to 7, allowing numerous technological applications for fructans present in yacon.pt_BR
dc.publisherAcademic Journalspt_BR
dc.rightsacesso abertopt_BR
dc.sourceAfrican Journal of Biotechnologypt_BR
dc.subjectYacon - Frutanospt_BR
dc.subjectYacon - Fructanspt_BR
dc.subjectYacon - Storagept_BR
dc.subjectYacon - Armazenamentopt_BR
dc.titleExtraction, quantification and degree of polymerization of yacon (Smallanthus sonchifolia) fructanspt_BR
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