α-, β-caroteno e α-tocoferol em algas marinhas in natura

Sousa, Márcia Barbosa de; Pires, Kelma Maria dos Santos; Alencar, Daniel Barroso de; Sampaio, Alexandre Holanda; Saker-Sampaio, Silvana

doi:10.1590/s0101-20612008000400030

Cited by 24 publications

(5 citation statements)

References 13 publications

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“…β-Carotene is a liposoluble pigment that has pro-vitamin A activity with a long chain of conjugated double bonds produced from an acyclic structure. In the present investigation, the average content of β-carotene (0.52 ± 0.08 mg/100 g DW) is in accordance with that reported by De Sousa ( 46 ), with an average content of 0.4185 ± 0.1559 mg/100 g DW for brown algae Lobophora collected from Brazil. This result was lower than that recorded from the Red Sea (0.47 mg/g DW) ( 29 ) or 0.55 to 4.06 mg/g DW obtained by another work ( 42 ).…”

Section: Resultssupporting

confidence: 92%

Nutritional, bioactive compounds content, and antioxidant activity of brown seaweeds from the Red Sea

Ismail¹,

Zokm²,

López³

2023

Front. Nutr.

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IntroductionBrown seaweeds are excellent sources of bioactive molecules with a wide range of pharmacological effects, whose content can vary depending on several factors, including the origin and the environment in which the algae grow.MethodsThis study aimed to estimate 19 compounds regarding primary and secondary metabolites of eight brown macroalgal species from a clean Egyptian Red Sea coast. A proximate analysis, pigment, phenolic compounds, and vitamin contents were determined. In addition, the energy content and antioxidant activity were estimated to explore the potential application of algae as functional foods to encourage the species’ commercialization.ResultsBased on the chemical composition, Polycladia myrica was the most valuable species, with a comparatively high protein content of 22.54%, lipid content of 5.21%, fucoxanthin content of 3.12 μg/g, β-carotene content of 0.55 mg/100 g, and carbohydrate content of 45.2%. This species also acts as a great source of vitamin C, flavonoids, tannins, phenol content and total antioxidant capacity.DiscussionThe antioxidant activity of the selected algae indicated that its phenol, vitamin and pigment contents were powerful antioxidant compounds based on the structure–activity relationships. This result was verified by the strong correlation in statistical analysis at the 95% confidence level. From a worldwide perspective and based on the obtained results, these brown species may be reinforced as an essential line in future foods.

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Section: Resultssupporting

confidence: 92%

Nutritional, bioactive compounds content, and antioxidant activity of brown seaweeds from the Red Sea

Ismail¹,

Zokm²,

López³

2023

Front. Nutr.

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“…Sousa and others (2008) found the highest contents of α‐tocopherol in green algae when compared to both red and brown algae. Species of Caulerpa showed similar levels of α‐tocopherol to our current data and indicated that daily portions that would be deemed an excellent source or a useful source of vitamin E, would be similar in size as well.…”

Section: Resultsmentioning

confidence: 88%

“…Vegetable oils and their derivatives are the major sources of vitamin E; however, green leafy vegetables, almonds, and grains also are significant producers of this nutrient (Rigotti 2007; Schwartz and others 2008). Some species of marine algae have shown the presence of α‐tocopherol (Sousa and others 2008; Taboada and others 2010). In algae, the variation of the vitamin content and nutritional quality depends on factors such as seasonality, environmental conditions of temperature, salinity, luminosity, freshness, and the method of preservation and processing (industrial or household) (Bernhardt and Schlich 2006; Marinho‐Soriano and others 2006).…”

Section: Introductionmentioning

confidence: 99%

Seasonal Changes of α‐Tocopherol in Green Marine Algae (Caulerpa genus)

Pires-Cavalcante¹,

Alencar²,

Sousa³

et al. 2011

Journal of Food Science

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Marine algae are a promising source of beneficial compounds for human use. Among these, pro-vitamin A carotenoids and vitamins B, C, and E stand out. The objective of this study was to investigate seasonal variation of α-tocopherol levels in 5 species of green marine algae of the Caulerpa genus. This research was carried out with both fresh and dry specimens; and, in addition, differences arising as a result of the drying process were examined. Analyses were carried out by high-performance liquid chromatography (HPLC) using an isocratic system and a reversed-phase C-18 column. The distribution of α-tocopherol throughout the year in Caulerpa genus was variable. All samples of both fresh and dried algae contained α-tocopherol, except for the dried C. racemosa from March 2006. The drying process was responsible for losses of α-tocopherol ranging from 21% to 93%.

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“…α-Tocopherol (24) β-carotene (25), and vitamin A (26) were detected in the methanolic extract of D. delicatula Lamouroux, collected during low tide from Guajiru Beach and Trairi-Ceará (Brazil). α-Tocopherol (24) β-carotene (25), and vitamin A (26) were quantified, and their contents were 26.562 ± 3.627, 0.266 ± 0.198 and 0.044 ± 0.033 µg/g fresh weight, severally [23].…”

Section: Dictyopteris Delicatula Jv Lamouroux 1809mentioning

confidence: 99%

The Natural Products and Pharmacological Biodiversity of Brown Algae from the Genus Dictyopteris

et al. 2021

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Abstract. Genus Dictyopteris is an important genus among marine seaweeds and is excessively distributed and known by its ocean smell due to its secondary metabolites including C11-hydrocarbons and sulfur compounds. This chemical feature is responsible for its interesting biological properties. This review detected the literature from 1959 to 2021 on the genus Dictyopteris and revealed the secondary metabolites, together with biological activities of the genus Dictyopteris to create the base for additional studies on its clinical and pharmaceutical applications. Resumen. El género Dictyopteris es un género importante entre las algas marinas y está excesivamente distribuido y conocido por su olor a océano debido a sus metabolitos secundarios que incluyen hidrocarburos C11 y compuestos de azufre. Esta característica química es responsable de sus interesantes propiedades biológicas. Esta revisión detectó la literatura de 1959 a 2021 sobre el género Dictyopteris y reveló los metabolitos secundarios, junto con las actividades biológicas del género Dictyopteris, para crear la base para estudios adicionales sobre sus aplicaciones clínicas y farmacéuticas.

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α-, β-caroteno e α-tocoferol em algas marinhas in natura

Cited by 24 publications

References 13 publications

Nutritional, bioactive compounds content, and antioxidant activity of brown seaweeds from the Red Sea

Nutritional, bioactive compounds content, and antioxidant activity of brown seaweeds from the Red Sea

Seasonal Changes of α‐Tocopherol in Green Marine Algae (Caulerpa genus)

The Natural Products and Pharmacological Biodiversity of Brown Algae from the Genus Dictyopteris

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