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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos; Embrapa Amazônia Oriental. |
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Data corrente: |
11/03/2010 |
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Data da última atualização: |
16/11/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MONTEIRO, F. S.; GOMES, F. S.; MATTIETTO, R. A.; CABRAL, L. M. C.; MATTA, V. M. |
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Afiliação: |
F. S. MONTEIRO, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; F. S. GOMES, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; RAFAELLA DE ANDRADE MATTIETTO, CPATU; LOURDES MARIA CORREA CABRAL, CTAA; VIRGINIA MARTINS DA MATTA, CTAA. |
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Título: |
Effect of pre-treatment on açaí pulp microfiltration process. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: EUROPEAN FEDERATION OF FOOD SCIENCE AND TECHNOLOGY CONFERENCE, 2009, Budapest. New Challenges in food preservation: processing - safety - sustainability. [S.l.]: Effost, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
Açaí (Euterpe oleracea Mart.) is a palm tree from north region of Brazil. Its small fruit is rich in bioactive compounds making it an attractive product. The aim of this work was to evaluate the effect of pre-treatments on microfiltration of açaí pulp. Raw material was acaí pulp from Belém, Brazil. Pre-treatments were centrifugation, conducted in a basket centrifuge; refining, in a depulper with a 0.5 ?m mesh; and enzymatic hydrolysis with DSM Rapidase and Picantase for 30 min at 35oC. Microfiltration was conducted in tubular membranes with 0.1?m pore size and 0.022m2 of surface. Processes were carried out at 35oC/3bar in batch mode. Permeate flux was determined during the process. Total and soluble solids, pH and acidity were determined on initial and treated pulp, permeate and retentate. Initial pulp contained 13.89 (w/w), 2.85oBrix, 0.19g/100g (malic acid) and 4.93 of pH. Total solids of treated pulp from centrifugation (5.71%) were lower than the others (13.83 and 13.84%) which consequently caused lower total solids in retentate and permeate fractions. Acidity and pH of treated pulp were different (p<0.05) for the different pre-treatments. Similar behaviors were also verified to retentate and permeate fractions. Values varied from 0.10 to 0.29 g/100g malic acid and pH from 4.17 to 4.98, with no correlation to total solids content. Soluble solids were different for each fraction although there was no significant difference in the same fraction in function of used pre-treatment. The values were 2.87, 1.63 and 4.77oBrix for treated pulp, permeate and retentate, respectively. Average flux was affected by pre-treatment being the lowest values, around 70 L/hm2, obtained after centrifugation and the highest, 110 L/hm2, with the enzymatic action. As physical-chemical parameters did not present a behavior that contributes for the pre-treatment selection, permeate flux results suggest the use of enzyme as the recommended option. MenosAçaí (Euterpe oleracea Mart.) is a palm tree from north region of Brazil. Its small fruit is rich in bioactive compounds making it an attractive product. The aim of this work was to evaluate the effect of pre-treatments on microfiltration of açaí pulp. Raw material was acaí pulp from Belém, Brazil. Pre-treatments were centrifugation, conducted in a basket centrifuge; refining, in a depulper with a 0.5 ?m mesh; and enzymatic hydrolysis with DSM Rapidase and Picantase for 30 min at 35oC. Microfiltration was conducted in tubular membranes with 0.1?m pore size and 0.022m2 of surface. Processes were carried out at 35oC/3bar in batch mode. Permeate flux was determined during the process. Total and soluble solids, pH and acidity were determined on initial and treated pulp, permeate and retentate. Initial pulp contained 13.89 (w/w), 2.85oBrix, 0.19g/100g (malic acid) and 4.93 of pH. Total solids of treated pulp from centrifugation (5.71%) were lower than the others (13.83 and 13.84%) which consequently caused lower total solids in retentate and permeate fractions. Acidity and pH of treated pulp were different (p<0.05) for the different pre-treatments. Similar behaviors were also verified to retentate and permeate fractions. Values varied from 0.10 to 0.29 g/100g malic acid and pH from 4.17 to 4.98, with no correlation to total solids content. Soluble solids were different for each fraction although there was no significant difference in the same fraction in function of used pre-trea... Mostrar Tudo |
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Palavras-Chave: |
Polpa de açaí; Tecnologia de membrana. |
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Thesagro: |
Açaí; Enzima; Euterpe Oleracea; Fruta Tropical; Suco de Fruta. |
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Categoria do assunto: |
--
Q Alimentos e Nutrição Humana |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/93771/1/Sp6246.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/71060/1/2009-224.pdf
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Marc: |
LEADER 02745nam a2200241 a 4500
001 1660795
005 2022-11-16
008 2009 bl uuuu u00u1 u #d
100 1 $aMONTEIRO, F. S.
245 $aEffect of pre-treatment on açaí pulp microfiltration process.
260 $aIn: EUROPEAN FEDERATION OF FOOD SCIENCE AND TECHNOLOGY CONFERENCE, 2009, Budapest. New Challenges in food preservation: processing - safety - sustainability. [S.l.]: Effost$c2009
520 $aAçaí (Euterpe oleracea Mart.) is a palm tree from north region of Brazil. Its small fruit is rich in bioactive compounds making it an attractive product. The aim of this work was to evaluate the effect of pre-treatments on microfiltration of açaí pulp. Raw material was acaí pulp from Belém, Brazil. Pre-treatments were centrifugation, conducted in a basket centrifuge; refining, in a depulper with a 0.5 ?m mesh; and enzymatic hydrolysis with DSM Rapidase and Picantase for 30 min at 35oC. Microfiltration was conducted in tubular membranes with 0.1?m pore size and 0.022m2 of surface. Processes were carried out at 35oC/3bar in batch mode. Permeate flux was determined during the process. Total and soluble solids, pH and acidity were determined on initial and treated pulp, permeate and retentate. Initial pulp contained 13.89 (w/w), 2.85oBrix, 0.19g/100g (malic acid) and 4.93 of pH. Total solids of treated pulp from centrifugation (5.71%) were lower than the others (13.83 and 13.84%) which consequently caused lower total solids in retentate and permeate fractions. Acidity and pH of treated pulp were different (p<0.05) for the different pre-treatments. Similar behaviors were also verified to retentate and permeate fractions. Values varied from 0.10 to 0.29 g/100g malic acid and pH from 4.17 to 4.98, with no correlation to total solids content. Soluble solids were different for each fraction although there was no significant difference in the same fraction in function of used pre-treatment. The values were 2.87, 1.63 and 4.77oBrix for treated pulp, permeate and retentate, respectively. Average flux was affected by pre-treatment being the lowest values, around 70 L/hm2, obtained after centrifugation and the highest, 110 L/hm2, with the enzymatic action. As physical-chemical parameters did not present a behavior that contributes for the pre-treatment selection, permeate flux results suggest the use of enzyme as the recommended option.
650 $aAçaí
650 $aEnzima
650 $aEuterpe Oleracea
650 $aFruta Tropical
650 $aSuco de Fruta
653 $aPolpa de açaí
653 $aTecnologia de membrana
700 1 $aGOMES, F. S.
700 1 $aMATTIETTO, R. A.
700 1 $aCABRAL, L. M. C.
700 1 $aMATTA, V. M.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 51 | |
| 6. |  | DE PAULA, B.; GOMES, F. S.; COURI, S.; MATTA, V. M.; CABRAL, L. M. C. Clarificacao de suco de maracuja usando um extrato enzimatico produzido pelo mutante Aspergillus niger 3T5B8. In: SIMPOSIO LATINO AMERICANO DE CIENCIA DE ALIMENTOS, 4., 2001, Campinas, SP. Livro de Resumos... 2001. p.173, ref. 0538-442.8.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 13. | | MAGALHAES, M. P.; GOMES, F. S.; SILVA, L. F. M.; CABRAL, L. M. Reducao da carga microbiana da agua de coco verde por microfiltracao. In: CONGRESSO BRASILEIRO DE CIENCIA E TECNOLOGIA DE ALIMENTOS, 17., 2000, Fortaleza, CE. Livro de resumos... Fortaleza: SBCTA, 2000. v.1, p.4.150, 2000.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 18. | | SILVA, V. P. da; COURI, S.; GOMES, F. S.; NOGUEIRA, R. I.; FREITAS, S. P. Otimização do processo de extração aquosa de inulina de chicória. Revista Brasileira de Tecnologia Agroindustrial, Ponta Grossa, v. 2, n. 1, p.115-122, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Local - A |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 19. | | CARNEIRO, L.; GOMES, F. S.; FURTADO, A. A. L.; MATTA, V. M.; CABRAL, L. M. C. Esterilizacao a frio e clarificacao de suco de abacaxi CV Smooth Cayenne. In: SIMPOSIO LATINO AMERICANO DE CIENCIA DE ALIMENTOS, 4., 2001, Campinas, SP. Livro de Resumos... 2001. p.219, ref. 0719-442.6.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 20. | | PAULA, B.; GOMES, F. S.; COURI, S.; MATTA, V. M.; CABRAL, L. M. C. Hidrolise do suco de maracuja utilizando um complexo enzimatico obtido atraves do mutante Aspergillus niger 3T5B8. In: JORNADA DE INICIACAO CIENTIFICA DA UFRRJ, 11., 2001, Rio de Janeiro. Anais ... Rio de Janeiro: UFRRJ, 2001. v.11, n.1, p.431-432.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 51 | |
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