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Accueil du site → Master → Etats Unis → 1984 → THE NUTRITIONAL VALUE OF A HALOPHYTIC PLANT : DISTICHLIS PALMERI (VASEY).

University of Arizona (1984)

THE NUTRITIONAL VALUE OF A HALOPHYTIC PLANT : DISTICHLIS PALMERI (VASEY).

Yensen, Susana Bojorquez de.

Titre : THE NUTRITIONAL VALUE OF A HALOPHYTIC PLANT : DISTICHLIS PALMERI (VASEY).

Auteur : Yensen, Susana Bojorquez de.

Université de soutenance : University of Arizona

Grade : Master of Science (MS) 1984

Résumé
A proximal analysis was done on the grain of Distichlis palmeri, a halophytic grass. It was found to have 8.7% protein, 8.4% fiber, 1.8% fat. 1.6% ash, 64.4% starch, and 3.5% sugars. The gross energy was 3.9 Kcal/g. The mineral analysis showed 0.2% phosphorus, 0.3% sodium, 0.008% magnesium, 0.003% calcium, 20 ppm iron, 23.1 ppm zinc, and 4.2 ppm copper. The phytate content was 0.46%. An amino acid profile of the grain was also run. The first three limiting amino acids were found to be methionine, lysine and threonine. Two feeding trials were made using mice as the laboratory animal. In the first experiment J3. palmeri flour was fed as the sole source of protein and carbohydrates, using whole egg and lactalbumin as the control proteins. The corrected PER obtained for I), palmeri protein was 1.31 and the total body weight gain was 6.4 g compared to 17.9 g for whole egg and 12.7 g for lactalbumin. In the second experiment five diets were made : 1) just I). palmeri ; 2) I), palmeri plus methionine ; 3) J), palmeri plus methionine and lysine ; 4) J). palmeri plus methionine, lysine and threonine ; 5) whole egg as the control protein. The PER and the weight gains for the five diets were : 1) 1.29 ± 0.06, 7.1 _+ 0.33 g. 2) 1.44 + 0.09, 8.3 + 0.60 g ; 3) 1.53 + 0.06, 7.2 + 0.34 g ;4) 1.90 + 0.05, 12.3 + 0.55 g ; 5) 2.55 + 0.07, 17.1 + 0.40 g.

Mots clés : Distichlis palmeri. ; Grasses — Mexico — Sonora (State)

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