High pressure-induced gel formation of milk and whey concentrates

Autor: L. Chapron, Michel Piot, Marie-Hélène Famelart, C. Durier, G. Brule
Přispěvatelé: UR 0121 Laboratoire de recherche de Technologie Laitière, Institut National de la Recherche Agronomique (INRA), Unité mixte de recherche de technologie des ovoproduits, Ecole Nationale Supérieure Agronomique de Rennes-Institut National de la Recherche Agronomique (INRA), Unité de recherche Biométrie (UB)
Rok vydání: 1998
Předmět:
Zdroj: Journal of Food Engineering
Journal of Food Engineering, Elsevier, 1998, 36, pp.149-164
ISSN: 0260-8774
DOI: 10.1016/s0260-8774(98)00048-x
Popis: Gels from milk concentrates [milk and caseinate powder, ultrafiltration (UF) and microfiltration (MF)] and whey concentrates (UF) were obtained with high pressure (200 and 400 MPa, 10 and 30 min). The effects of protein concentration (66–114gkg −1 for milk and 97–127g kg −1 for whey), NaCl addition (0–8 g kg −1 ), sodium citrate addition (0–4 g kg −1 ) and pH (5.2–6.6 for milk and 7–9 for whey) were studied with a Box-Behnken design. Milk supplemented with casemate powder did not lead to gel formation by pressure. For UF or MF milk concentrates, a pH decrease towards 5.9 and a protein content increase led to firmer pressure-set gels. Gels of whey concentrates were obtained only at pH 9. A pressure increase from 200 to 400 MPa led to firmer gels, while a protein content increase did not.
Databáze: OpenAIRE