An Analysis of the Nutritional and Health Values of Caulerpa racemosa (Forsskål) and Ulva fasciata (Delile)—Two Chlorophyta Collected from the Philippines

Analyse des valeurs nutritionnelles et en santé humaine de Caulerpa racemosa (Forsskål) et Ulva fasciata (Delile) - deux chlorophytes récoltées aux Philippines

Rexie Magdugo , Nolwenn Terme , Marie Lang (1) , Hugo Pliego-Cortés (2) , Christel Marty (1) , Anicia Hurtado , Gilles Bedoux (2) , Nathalie Bourgougnon (3)

1 LBCM - Laboratoire de Biotechnologie et Chimie Marines
2 LBCM - Laboratoire de Biotechnologie et Chimie Marines
3 UBS Vannes - Université de Bretagne Sud - Vannes

Polysaccharides, lipids and amino acid profiles were investigated to understand the nutritional value of Caulerpa racemosa and Ulva fasciata from the Philippines. The results revealed that both species contain high amounts of proteins (8.8-19.9% for C. racemosa and 8.0-11.1% for U. fasciata). The portions of the total amino acids that were essential amino acids (EAAs) (45.28 ± 0.12% for C. racemosa and 42.17 ± 0.12% for U. fasciata) out were comparable to FAO/WHO requirements. Leucine, valine, isoleucine, and lysine are the dominant EAAs in C. racemosa, while leucine, valine, lysine, and phenylalanine are those in U. fasciata. The fatty acid profiles are dominated by monounsaturated fatty acids and polyunsaturated fatty acids in C. racemosa (56.2%), while saturated fatty acids (72.1%) are dominant in U. fasciata. High C18/C20 polyunsaturated fatty acid ratios were recorded in both species. Mineral contents for both seaweeds were within levels considered safe for functional foods. Total pigment content of C. racemosa (140.84 mg/g dw) was almost 20 times higher than that of U. fasciata (7.54 mg/g dw). Hot water extract (HWE) from C. racemosa showed in vitro antiherpetic activity without cytotoxicity. Nutritional characteristics confirmed that C. racemosa could be potentially used as a nutritious and functional food items for human consumption.

Mots clés: human food; amino acids; lipids; green seaweeds; biological activities

Domaines: Sciences du Vivant [q-bio]

Rexie Magdugo, Nolwenn Terme, Marie Lang, Hugo Pliego-Cortés, Christel Marty, et al.. An Analysis of the Nutritional and Health Values of Caulerpa racemosa (Forsskål) and Ulva fasciata (Delile)—Two Chlorophyta Collected from the Philippines. Molecules, 2020, 25 (12), pp.2901. ⟨10.3390/molecules25122901⟩. ⟨hal-02888518⟩