Abstract
The aim of this work was to evaluate the potential of 32 marine macro algae species, members of Chlorophyta, Rhodophyta and Phaeophyta, as sources of a-carotene, b-carotene and a-tocopherol. Both b-carotene and a-carotene were found in all species of green macroalgae analyzed. The maximum content of a-carotene was detected in algae belonging to Caulerpa genus and the minimum in Codium decorticatum. The amount of b-carotene found was minimum in Caulerpa mexicana and maximum in Ulva fasciata. Among the Rhodophyta species, eleven contain a-carotene, the maximum content was found in Botryocladia occidentalis. b-Carotene was found in all red macroalgae analyzed presenting the lowest and highest values in Gracilaria caudata and Bryothamnion triquetrum, respectively. Species of Phaeophyta contained b-carotene but no a-carotene. The lowest value for b-carotene was found in Dictyopteris delicatula and the highest in Padina gymnospora. In Chlorophyta, the amount of a-tocopherol was maximum in Codium decorticatum and minimum in Caulerpa prolifera. In Rhodophyta, twelve species contained a-tocopherol, the highest value was found in Enantiocladia duperreyi. a-Tocopherol was detected in all Phaeophyta species analyzed. The highest and lowest values were found in Lobophora varigata and Dictyota dichotoma, respectively.
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