| Texto completo | |
| Autor(es): |
Machado, Mariana T. C.
[1]
;
Trevisan, Susane
[1]
;
Pimentel-Souza, Jane D. R.
[2]
;
Pastore, Glaucia M.
[2]
;
Hubinger, Miriam D.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas, Dept Food Engn, Sch Food Engn, Campinas, SP - Brazil
[2] Univ Estadual Campinas, Dept Food Sci, Sch Food Engn, Campinas, SP - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Food Engineering; v. 180, p. 120-128, JUL 2016. |
| Citações Web of Science: | 14 |
| Resumo | |
Artichoke solid waste is considered a cheap fructooligosaccharides source. The extract from this material contains suspended solids, macromolecules and prebiotic sugars. The prebiotic sugars need to be clarified, purified and concentrated to increase its value. In this study, we evaluated the technical feasibility of sequential microfiltration (to clarify the artichoke extract) and nanofiltration (to purify and concentrate the prebiotic sugars). The investigation was carried out in laboratory scale, using different micro filtration and nanofiltration membranes subjected to different operation pressures. Microfiltration was able to clarify the extract with almost 100% of prebiotic sugars recovered in permeate. Microfiltration processes presented flux decline (the final flux was between 60 and 80% of the initial one) caused by cake layer formation, as observed by surface analysis. The membrane that presented the lowest flux decline and less solids deposition on its surface (polyethersulfone with a pore size of 0.05 mu m), had its permeate subjected to nanofiltration. In this last step, 100% of retention of prebiotic sugar was obtained, mainly using polyamide membrane with molecular weight cut off of 150-300 Da. The sequential process allowed to produce a concentrate fraction can be used as an ingredient on foodstuff applications. (C) 2016 Elsevier Ltd. All rights reserved. (AU) | |
| Processo FAPESP: | 09/50591-0 - Avaliação dos processos de desidratação osmótica a pressão atmosférica e a vácuo em frutas tropicais |
| Beneficiário: | Miriam Dupas Hubinger |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 06/03263-9 - Processo, embalagem, aplicação de coberturas comestíveis e avaliação da qualidade de algumas frutas tropicais a alta umidade |
| Beneficiário: | Miriam Dupas Hubinger |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 09/50593-2 - Concentração de extratos aquosos de própolis por nanofiltração |
| Beneficiário: | Miriam Dupas Hubinger |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |