Antarctica, the White Continent, is the refuge of typical species, where temperatures range from -85 to 2 oC, UV radiation can penetrate 30 m depth and salinity reaches 32-34%. Among these species, brown macroalgae (Pheophytas) and red macroalgae (Rhodophytas) are mainly evaluated as potential food and health resources for mankind. The macroalgae collected in February 2019 were taxonomically classified into 6 species: Desmarestia confervoides, (hacer la consulta con el autor/IMARPE) Desmarestia antarctica, Himantothallus grandifolius, Palmaria decipiens, Gigartina skottsbergii and Curdiea racovitzae. This research determined organic matter ranging from 12 to 20%, iron (atomic absorption), polyphenols and flavonoids (quantitative methods). The results revealed that the content of iron ranged from 6.72 to 154 mg%, polyphenols from 22.4 to 78.4 mg% an...

Antarctica, the White Continent, is the refuge of typical species, where temperatures range from -85 to 2 oC, UV radiation can penetrate 30 m depth and salinity reaches 32-34%. Among these species, brown macroalgae (Pheophytas) and red macroalgae (Rhodophytas) are mainly evaluated as potential food and health resources for mankind. The macroalgae collected in February 2019 were taxonomically classified into 6 species: Desmarestia confervoides, (hacer la consulta con el autor/IMARPE) Desmarestia antarctica, Himantothallus grandifolius, Palmaria decipiens, Gigartina skottsbergii and Curdiea racovitzae. This research determined organic matter ranging from 12 to 20%, iron (atomic absorption), polyphenols and flavonoids (quantitative methods). The results revealed that the content of iron ranged from 6.72 to 154 mg%, polyphenols from 22.4 to 78.4 mg% an...

Aísla los principios activos fenólicos con actividad anticoagulante sobre el plasma humano y desarrolla su caracterización bioquímica Oenothera rosea, para lo cual se realiza el extracto alcohólico y se detecta la presencia de fenoles, flavonoides, saponinas, glicósidos y tanino. A partir del extracto alcohólico se obtiene la fase acuosa y se realiza una CCF sobre celulosa obteniéndose 9 fracciones, 5 de las cuales resultan positivas para fenoles y flavonoides, y dos de éstas muestran actividad anticoagulante sobre plasma humano citratado (PHC), fibrinógeno bovino (FB) y disminuyen la actividad amidolítica (BApNA) que presentan la Trombina bovina (TB) y el veneno de L.muta (V). Los porcentajes de inhibición de la fase acuosa son 95,74 (TB-FB); 90,08 (V-FB); 63,58 (V-PHC) y 92,65 (V-BApNA). Para la fracción F-2: 58,57%,10,67%, 34,14%, y 88,59 %; F-5: 96,79%, 36,27%,70,69% y 9...