INVESTIGADORES
PONCE Nora Marta Andrea
artículos
Título:
Composition and Functional properties of enriched fiber product obtained from pumpkin (Cucumis moschata, Duch.)
Autor/es:
DE ESCALADA PLA, M.F.; PONCE, N.M.A.; STORTZ, C.A.; GERSCHENSON, L.N.; ROJAS, A.M.
Revista:
LEBENSMITTEL-WISSENSCHAFT UND-TECHNOLOGIE-FOOD SCIENCE AND TECHNOLOGY
Editorial:
Elsevier
Referencias:
Lugar: Zurich; Año: 2007 vol. 40 p. 1176 - 1185
ISSN:
0023-6438
Resumen:
Enriched fiber products werw obtained through ethanolic extraction of pumpkin (Cucurbita moschata Duchesne ex Poiret) mesocarp (AIR) or milled peel (C) or by drying of mesocarp (P). The composition and hydration properties of these products as well as glucose retention capacity werw evaluated. AIR-fraction showed the highest swelling (41.8 ml/g dry sample) and water holding capacity (43 g/g dry sample) followed by P- (25 ml/g dry sample; 24 g/g dry sample) and C-fractions (22 ml/g dry sample; 27 g/g dry sample). AIR-fraction presented also the highest water retention capacity an rate of water binding and awelling. Hydration properties werw dependent on fraction chemical composition: presence of rhamnogalacturoran I and other hydrophilic pectins with side chains were related to higher water absorption and swelling of AIR, while presence of lignin in C produced fiber-particle impermeabilization being probably responsible of its behavior as a barrier for water diffusion. In addition, AIR and C-fractions showed values of glucose retention in vitro assayed, in accordance with other reported values of the literature.