Study of antioxidant and antibacterial activities of depolymerized fucoidans extracted from Sargassum tenerrimum

Ashayerizadeh, O.; Dastar, B; Pourashouri, Parastoo

doi:10.1016/j.ijbiomac.2019.10.172

Cited by 43 publications

(28 citation statements)

References 40 publications

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“…Sudharsan et al [105] and Li et al [106] showed that carrageenans and ulvans isolated from Rhodophyceae (Spyridia hypnoides) and Chlorophyceae (Ulva pertusa), respectively, have great antioxidant properties related to sulfate content. Interestingly, metal chelating and DPPH and ABTS radical scavenging activities of fucan fractions extracted from Sargassum tenerrimum appear to relate to low molecular weight and their ratio of sulfate/fucose [107]. Furthermore, the in vivo antioxidant capacity of sulfated galactans derived from Rhodophyceae Porphyra haitanensis in aging mice has been signalized [108].…”

Section: Antioxidant Activitymentioning

confidence: 99%

Bioactive Polysaccharides from Seaweeds

et al. 2020

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Bioactive compounds with diverse chemical structures play a significant role in disease prevention and maintenance of physiological functions. Due to the increase in industrial demand for new biosourced molecules, several types of biomasses are being exploited for the identification of bioactive metabolites and techno-functional biomolecules that are suitable for the subsequent uses in cosmetic, food and pharmaceutical fields. Among the various biomasses available, macroalgae are gaining popularity because of their potential nutraceutical and health benefits. Such health effects are delivered by specific diterpenes, pigments (fucoxanthin, phycocyanin, and carotenoids), bioactive peptides and polysaccharides. Abundant and recent studies have identified valuable biological activities of native algae polysaccharides, but also of their derivatives, including oligosaccharides and (bio)chemically modified polysaccharides. However, only a few of them can be industrially developed and open up new markets of active molecules, extracts or ingredients. In this respect, the health and nutraceutical claims associated with marine algal bioactive polysaccharides are summarized and comprehensively discussed in this review.

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Section: Antioxidant Activitymentioning

confidence: 99%

Bioactive Polysaccharides from Seaweeds

et al. 2020

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“…Lower molecular weight fucoidans ( Laminaria spp., Sargassum spp., Undaria spp.) reduced Gram-negative E. coli, S. Typhimurium and Klebsiella pneumoniae , and Gram-positive St. aureus and Bacillus cereus in vitro with better efficacy against Gram-negative bacteria, while the crude fucoidans had no effect on the tested bacterial strains [ 90 , 91 , 92 , 93 ]. Palanisamy et al [ 94 ] also reported an in vitro antibacterial activity in a fucoidan fraction ( Sargassum spp.)…”

Section: Fucoidanmentioning

confidence: 99%

Feeding Marine Polysaccharides to Alleviate the Negative Effects Associated with Weaning in Pigs

O’Doherty

Venardou

Rattigan

et al. 2021

Animals

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In young pigs, the challenge of weaning frequently leads to dysbiosis. This predisposes pigs to intestinal infection such as post-weaning diarrhoea (PWD). Dietary interventions to reduce PWD have centred on dietary inclusion of antibiotic growth promoters (AGP) and antimicrobials in pig diets, or high concentrations of zinc oxide. These interventions are under scrutiny because of their role in promoting multidrug resistant bacteria and the accumulation of minerals in the environment. There are significant efforts being made to identify natural alternatives. Marine polysaccharides, such as laminarin and fucoidan from macroalgae and chitosan and chito-oligosaccharides from chitin, are an interesting group of marine dietary supplements, due to their prebiotic, antibacterial, anti-oxidant, and immunomodulatory activities. However, natural variability exists in the quantity, structure, and bioactivity of these polysaccharides between different macroalgae species and harvest seasons, while the wide range of available extraction methodologies and conditions results in further variation. This review will discuss the development of the gastrointestinal tract in the pig during the post-weaning period and how feeding marine polysaccharides in both the maternal and the post-weaned pig diet, can be used to alleviate the negative effects associated with weaning.

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“…In another study with the same solvent, Sargassum binderi has a yield of 3.36%. 13 The yields of fucoidan from other Sargassum species are as follows: 3.75% ± 0.44% from S. cristaefolium, 17 9.4% ± 1.90% from S. cinereum, 16 3.68% from S. tennerium, 18 and 10.59% from S. wightii. 19 The yield obtained in this study was different from that determined by Suhaila et al 8 although the same type of sample and extraction method was used because of differences in harvesting time/season.…”

Section: Yield and Composition Of Fucoidanmentioning

confidence: 99%

“…Other studies involving a similar method have obtained the following total sulfate contents: 8.10% from S. binderi, 13 18.44% ± 0.44% from Nizamuddinia zanardinii, 23 3.7% ± 1.54% from S. cinereum, 16 11.58% ± 0.59% from S. cristaefolium, 17 and 16.96% ± 0.30% from S. tenerrimum. 18 The total sulfate contents of fucoidan from various algal species vary widely because of different biochemical and physiological mechanisms in the absorption of nutrients from their environment. The sulfate content of fucoidan is greatly affected by the differences in growth sites, sample ages, and extraction methods.…”

Section: Yield and Composition Of Fucoidanmentioning

confidence: 99%

Characteristics and Cytotoxic Activity of Fucoidan from the Brown Seaweed Sargassum hystrix against MCF-7 Breast Cancer Cells

2021

TJNPR

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cichoriodes, 9 Sargassum cristaefolium, Turbinaria conoides, Padina fraseri, 7 and Sargassum polycystum 10,11 has been investigated. The level of cytotoxic action of fucoidan extracted from brown marine algae is influenced by species, growth phase, geographic location, environmental conditions, and seasons. 12 However, the cytotoxic action of fucoidan from S. hystrix has yet to be fully explored. Therefore, this research aimed to establish the characteristics and cytotoxicity of fucoidan from S. hystrix against MCF-7 breast cancer cells Materials and Methods Sample preparationThe sample used was the brown alga S. hystrix, which was obtained from Telukawur Beach,

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Study of antioxidant and antibacterial activities of depolymerized fucoidans extracted from Sargassum tenerrimum

Cited by 43 publications

References 40 publications

Bioactive Polysaccharides from Seaweeds

Bioactive Polysaccharides from Seaweeds

Feeding Marine Polysaccharides to Alleviate the Negative Effects Associated with Weaning in Pigs

Characteristics and Cytotoxic Activity of Fucoidan from the Brown Seaweed Sargassum hystrix against MCF-7 Breast Cancer Cells

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