Artículo de revista
Dietary fiber, amino acid, fatty acid and tocopherol contents of the edible seaweeds Ulva lactuca and Durvillaea antarctica
Fecha
2006Registro en:
FOOD CHEMISTRY Volume: 99 Issue: 1 Pages: 98-104 Published: 2006
0308-8146
Autor
Ortiz Viedma, Jaime
Romero, Nalda
Robert Canales, Paz
Araya, Juan Carlos
López Hernández, J.
Bozzo, C.
Navarrete, E.
Osorio, A.
Ríos, A.
Institución
Resumen
The nutritional composition of the edible seaweeds Durvillaea antaretica (frond and stem) and dried Ulva lactuca was determined, including the soluble (SDF), insoluble (IDF) and total (TDF) dietary fiber content, amino acid and fatty acid profiles along with tocopherols and tocotrienols (pro-vitamin E). Results show that U. lactuca contained 60.5 +/- 1.5%, and D. antarctica frond and stem 71.4 +/- 1.5% and 56.4 +/- 0.4% of TDF, respectively. Levels for the different amino acids ranged from 0.7 +/- 0.1 to 1508.4 +/- 9.5 (mg/ 100 g protein) in U. lactuca, from 0.2 +/- 0.0 to 2019.9 +/- 5.2 (mg/100 g protein) in D. antarctica (stem), and from 0.3 +/- 0.0 to 1052.6 +/- 2.9 (mg/100 g protein) in D. antarctica (leaves). In the three seaweeds, the most abundant fatty acid was C18:1 omega 9cis which in U. lactuca accounted for 27.42 +/- 2.60%; in D. antarctica it was 25.36 +/- 3.10% and 25.83 +/- 2.52% in leaves and stem, respectively. In D. antarctica, gamma-tocotrienol (651.7 +/- 5.1 mg/kg), delta-tocopherol (245.9 +/- 3.7 mg/kg) and alpha-tocopherol (179.4 +/- 12.1 mg/kg) were determined in fronds, alpha-tocopherol (258.0 +/- 7.2 mg/kg) was determined in stem. U. lactuca, showed a high gamma-tocopherol level (963.5 +/- 3.8 mg/kg).