Antioxidant activity and related chemical composition of extracts from Brazilian beach-cast marine algae: opportunities of turning a waste into a resource

Harb, Talissa Barroco; Pereira, M. S.; Cavalcanti, Maria Irisvalda Leal Gondim; Fujii, Mutuê T.; Chow, Fungyi

doi:10.1007/s10811-021-02446-8

Cited by 13 publications

(9 citation statements)

References 26 publications

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“…As shown in Figure 10 , the trend of antioxidant potential is going from the highest antioxidant activity of brown algae extract followed by red and green algae extract as shown in several studies [ 270 , 274 , 275 ]. Their high antioxidant activity is probably due to the synergetic coexistence of polyphenols and alkaloids [ 276 , 277 ].…”

Section: Natural Antioxidants and Their Benefitsmentioning

confidence: 68%

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The Biochemistry and Effectiveness of Antioxidants in Food, Fruits, and Marine Algae

Pruteanu

Bailey²,

Grădinaru

et al. 2023

Antioxidants

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It is more effective to maintain good health than to regain it after losing it. This work focuses on the biochemical defense mechanisms against free radicals and their role in building and maintaining antioxidant shields, aiming to show how to balance, as much as possible, the situations in which we are exposed to free radicals. To achieve this aim, foods, fruits, and marine algae with a high antioxidant content should constitute the basis of nutritional elements, since natural products are known to have significantly greater assimilation efficiency. This review also gives the perspective in which the use of antioxidants can extend the life of food products, by protecting them from damage caused by oxidation as well as their use as food additives.

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Section: Natural Antioxidants and Their Benefitsmentioning

confidence: 68%

“… Antioxidant activity of marine algae and representative species, with higher antioxidant activity range from brown algae to green algae. This figure is based on information from references [ 270 , 274 , 275 , 278 ]. …”

Section: Natural Antioxidants and Their Benefitsmentioning

confidence: 99%

The Biochemistry and Effectiveness of Antioxidants in Food, Fruits, and Marine Algae

Pruteanu

Bailey²,

Grădinaru

et al. 2023

Antioxidants

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“…The present study indicated that the aqueous extract (PBD5) of the red algae Eucheuma denticulatum contained a high concentration of total phenolics, phycobilins (phycoerythrin, allophycocyanin, phycocyanin), carrageenan and had strong antioxidant/free radical scavenging activity (46 % by DPPH method). Harb et al [ 33 ] reported that the concentration of phenolic compounds and phycobilins exhibited a positive correlation with the antioxidant activities of the seaweed (macroalgae) extracts and seaweeds are a potential source for obtaining extracts with high antioxidant properties. Red seaweeds are known to contain sulfated polysaccharides like carrageenan in the range of 360–660 g/kg DM, [ 34 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the potential of extract of seaweed Eucheuma denticulatum as an alternative to antibiotic growth promoter in broiler chickens

Paul,

Ramasamy,

Rao Vantharam Venkata

et al. 2024

Heliyon

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“…Many studies [23][24][25][26] report the potential nutritional or bioactive content of various algae species worldwide, but there are only a few studies on Brazilian beach-cast algae. Their chemical composition has not been sufficiently investigated [27][28][29][30][31]. Brazil has an insignificant share of the global seaweed market, although the Brazilian coastal area has an excellent potential for collecting beach-harvested seaweeds [27,30,31].…”

Section: Introductionmentioning

confidence: 99%

“…Their chemical composition has not been sufficiently investigated [27][28][29][30][31]. Brazil has an insignificant share of the global seaweed market, although the Brazilian coastal area has an excellent potential for collecting beach-harvested seaweeds [27,30,31]. However, every year, tons of beach-cast seaweeds are removed from the beach by local authorities as part of beach cleaning operations and disposed of into landfill sites as part of urban waste [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Nutritional Composition of Beach-Cast Marine Algae from the Brazilian Coast: Added Value for Algal Biomass Considered as Waste

Mandalka

Cavalcanti

Harb

et al. 2022

Foods

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In some coastal areas, large quantities of beach-cast macroalgae can accumulate and are usually considered waste and disposed of. However, due to their biofunctional and nutritional properties, they have great potential as a new source of raw materials. Increasing population growth has made the search for alternative raw materials with valuable nutritional properties urgent; here, beach-cast macroalgae could provide great potential. Our research goal was to characterize the nutritional profile of 12 beach-cast seaweed species from the Brazilian coast to assess their potential valorization. A considerable number of nutritional compounds was observed, such as ash (6.5–59.3%), total dietary fibers (22.1–65.8%), proteins (5.1–21.5%), and carbohydrates (31.4–81.0%), with an expressive abundance of minerals, free amino acids, and fatty acids. Spatoglossum schroederi and Alsidium seaforthii showed protein contents of 21.5 ± 0.2%, 19.7 ± 0.1%, and high amounts of total dietary fiber of 59.2 ± 0.4%, 61.7 ± 4.9%, respectively. The overall profile suggests that beach-cast seaweeds are suitable for nutritional and other bioeconomical purposes, to which different species with different characteristics contribute. Contamination of these seaweeds with unwanted toxic compounds like micropollutants was not studied. However, this must be considered before they are used for human consumption.

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Antioxidant activity and related chemical composition of extracts from Brazilian beach-cast marine algae: opportunities of turning a waste into a resource

Cited by 13 publications

References 26 publications

The Biochemistry and Effectiveness of Antioxidants in Food, Fruits, and Marine Algae

The Biochemistry and Effectiveness of Antioxidants in Food, Fruits, and Marine Algae

Evaluation of the potential of extract of seaweed Eucheuma denticulatum as an alternative to antibiotic growth promoter in broiler chickens

Nutritional Composition of Beach-Cast Marine Algae from the Brazilian Coast: Added Value for Algal Biomass Considered as Waste

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