Sabiia Seb
        Busca avançada

Botão Atualizar

Botão Atualizar

Registro completo
Provedor de dados:  ArchiMer
País:  France
Título:  Fractionation of fish protein hydrolysates by ultrafiltration and nanofiltration: impact on peptidic populations
Autores:  Bourseau, Patrick
Vandanjon, Laurent
Jaouen, Pascal
Chaplain-derouiniot, Maryse
Masse, Anthony
Guerard, Fabienne
Chabeaud, Aurélie
Fouchereau-peron, Martine
Le Gal, Yves
Ravallec-ple, Rosenn
Berge, Jean-pascal
Picot, Laurent
Piot, Jean -marie
Batista, Ireneu
Thorkelsson, Gudjon
Delannoy, Charles
Jakobsen, Greta
Johansson, Inger
Data:  2009-08
Ano:  2009
Palavras-chave:  Peptidic profile
Fractionation process
Membrane separation
Fish protein hydrolysate
Resumo:  The production by enzymatic treatment of fish protein hydrolysates (FPH) is a promising route to add value to fisheries proteinic co-products (fish frames, heads etc.). Indeed, FPH possess good nutritional properties and biological activities for food and feed uses. Pressure-driven membrane separations such as ultrafiltration (UF) and nanofiltration (NF) can be used after the hydrolysis to, increase the specific activities of the FPH. This paper discusses the impact of a two-step UF/NF process producing four different fractions on two industrial FPH with different hydrolysis degrees. Fractionation is carried out in "realistic" conditions for an industrial process, on highly concentrated FPH solutions (about 100 g of dry matter/L) at a high volume reduction factor. For each step, UF or NF, the variation of the permeation flux in the course of the fractionation is discussed according to the FPH hydrolysis degree and the membranes cut-offs. The values of performance indicators defined in terms of nitrogen content are also examined, including the concentration factor (CF), the relative recovery in the retentate(eta(R)) and the mean and final retention factors (RFm and RFf). Computed values of these indicators are validated through the setting of volume and mass balances around each step. The impact of fractionation on the FPH peptidic population is shown. Peptidic populations are described in terms of chromatographic profiles (SEC-FPLC). The UF fractionation produces a permeate enriched with respect to the FPH smaller than a molecular weight of about 600-750 Dalton, and a retentate enriched in large peptides (above the same MW). A similar behaviour is found for the NF fractionation. Comparing the impact of the UF fractionation on the two hydrolysates allows to conclude that the membrane cut-off is well-suited when comprised between the MWs of the biggest and the most abundant peptides in the FPH.
Tipo:  Text
Idioma:  Inglês

Editor:  Elsevier
Formato:  application/pdf
Fonte:  Desalination (0011-9164) (Elsevier), 2009-08 , Vol. 244 , N. 1-3 , P. 303-320
Direitos:  2009 Elsevier B.V. All rights reserved.

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC:

Valid HTML 4.01 Transitional