Polysaccharides from Marine Enteromorpha: Structure and function

Zhong, Ruting; Wan, Xuzhi; Wang, Dingyi; Zhao, Chao; Liú, Dan; Gao, Luying; Wang, Mingfu; Wu, Changshan; Nabavid, Sayed Mohammad; Daglia, Maria; Capanoglu, Esra; Xiao, Jianbo; Cao, Hui

doi:10.1016/j.tifs.2020.02.030

Cited by 105 publications

(52 citation statements)

References 89 publications

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“…It was shown that when linolenic acid concentration increased by 1%, the blood pressure can diminish by 5 mmHg [ 90 , 94 , 95 , 96 ]. In this sense, Ryan et al [ 86 ] analyzed the possible reduction in blood pressure using DHA algae oil and found that blood pressure reduction and heart rate were significantly reduced.…”

Section: Health Effectsmentioning

confidence: 99%

Macroalgae—A Sustainable Source of Chemical Compounds with Biological Activities

et al. 2020

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Nowadays, one of the most important research directions that concerns the scientific world is to exploit the earth’s resources in a sustainable way. Considering the increasing interest in finding new sources of bioactive molecules and functional products, many research studies focused their interest on demonstrating the sustainability of exploiting marine macroalgal biomass as feedstock for wastewater treatment and natural fertilizer, conversion into green biofuels, active ingredients in pharmaceutical and nutraceutical products, or even for the production of functional ingredients and integration in the human food chain. The objective of the present paper was to provide an overview on the recent progress in the exploitation of different macroalgae species as a source of bioactive compounds, mainly emphasizing the latter published data regarding their potential bioactivities, health benefits, and industrial applications.

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Section: Health Effectsmentioning

confidence: 99%

Macroalgae—A Sustainable Source of Chemical Compounds with Biological Activities

et al. 2020

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“…Most of the polysaccharides of green algae mainly consist of rhamnose, xylose and glucose, but less glucuronic acid [ 18 ]. The polysaccharide extracted from Enteromorpha linza in this study mainly contain rhamnose, glucuronic acid, xylose and glucose; the content of rhamnose is the highest, and the glucuronic acid is only second to rhamnose, which may be related to the season of algal harvesting, the method of sugar extraction [ 19 ]. In addition, the average molecular weights of EP, AL and CA were 756 kDa, 833 kDa and 1588 kDa, respectively.…”

Section: Resultsmentioning

confidence: 99%

An Exploration of Seaweed Polysaccharides Stimulating Denitrifying Bacteria for Safer Nitrate Removal

et al. 2021

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Excessive use of nitrogen fertilizer in intensively managed agriculture has resulted in abundant accumulation of nitrate in soil, which limits agriculture sustainability. How to reduce nitrate content is the key to alleviate secondary soil salinization. However, the microorganisms used in soil remediation cause some problems such as weak efficiency and short survival time. In this study, seaweed polysaccharides were used as stimulant to promote the rapid growth and safer nitrate removal of denitrifying bacteria. Firstly, the growth rate and NO3−-N removal capacity of three kinds of denitrifying bacteria, Bacillus subtilis (BS), Pseudomonas stutzeri (PS) and Pseudomonas putida (PP), were compared. The results showed that Bacillus subtilis (BS) had a faster growth rate and stronger nitrate removal ability. We then studied the effects of Enteromorpha linza polysaccharides (EP), carrageenan (CA), and sodium alginate (AL) on growth and denitrification performance of Bacillus subtilis (BS). The results showed that seaweed polysaccharides obviously promoted the growth of Bacillus subtilis (BS), and accelerated the reduction of NO3−-N. More importantly, the increased NH4+-N content could avoid excessive loss of nitrogen, and less NO2−-N accumulation could avoid toxic effects on plants. This new strategy of using denitrifying bacteria for safely remediating secondary soil salinization has a great significance.

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“…Enteromorpha prolifera (EP), which is a green alga, has been used as food and traditional medicine in Eastern Asia for a long time. EP exhibits anti-diabetic, antioxidant, and anti-inflammatory activities [ 17 , 18 , 19 , 20 , 25 , 26 ]. Recently, the antioxidant properties of ethyl acetate extract of EP (EAEP) were attributed to the presence of diverse phytochemical ingredients, such as chlorophyll, phycocyanins, flavonoids, phenolic compounds, and polyssacharides [ 17 , 19 , 21 , 23 ].…”

Section: Discussionmentioning

confidence: 99%

“…It is cultivated worldwide along the seashore and is used to treat symptoms including epistaxis and signs of inflammation in eastern Asia [ 17 ]. Polysaccharides derived from EP have attracted the attention of investigators involved in their identification and determination of structure and function including antioxidant, anti-inflammatory, anti-diabetic, and anti-apoptotic activities [ 17 , 18 , 19 , 20 ]. However, EP is a source of polysaccharides, crude fiber and protein, as well as unsaturated fatty acids such as linoleic acid, linolenic acid, EPA, DHA, minerals, and vitamins [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Neuroprotective Effect of Carotenoid-Rich Enteromorpha prolifera Extract via TrkB/Akt Pathway against Oxidative Stress in Hippocampal Neuronal Cells

Baek

Kim

2020

Marine Drugs

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In this study, we found that E. prolifera extract (EAEP) exhibits neuroprotective effects in oxidative stress-induced neuronal cells. EAEP improved cell viability as well as attenuated the formation of intracellular reactive oxygen species (ROS) and apoptotic bodies in glutamate-treated hippocampal neuronal cells (HT-22). Furthermore, EAEP improved the expression of brain-derived neurotrophic factor (BDNF) and antioxidant enzymes such as heme oxygenase-1 (HO-1), NAD(P)H quinine oxidoreductase-1 (NQO-1), and glutamate–cysteine ligase catalytic subunit (GCLC) via the tropomyosin-related kinase receptor B/ protein kinase B (TrkB/Akt) signaling pathway. In contrast, the pre-incubation of K252a, a TrkB inhibitor, or MK-2206, an Akt-selective inhibitor, ameliorated the neuroprotective effects of EAEP in oxidative stress-induced neuronal cells. These results suggest that EAEP protects neuronal cells against oxidative stress-induced apoptosis by upregulating the expression of BDNF and antioxidant enzymes via the activation of the TrkB/Akt pathway. In conclusion, such an effect of EAEP, which is rich in carotenoid-derived compounds, may justify its application as a food supplement in the prevention and treatment of neurodegenerative disorders.

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Polysaccharides from Marine Enteromorpha: Structure and function

Cited by 105 publications

References 89 publications

Macroalgae—A Sustainable Source of Chemical Compounds with Biological Activities

Macroalgae—A Sustainable Source of Chemical Compounds with Biological Activities

An Exploration of Seaweed Polysaccharides Stimulating Denitrifying Bacteria for Safer Nitrate Removal

Neuroprotective Effect of Carotenoid-Rich Enteromorpha prolifera Extract via TrkB/Akt Pathway against Oxidative Stress in Hippocampal Neuronal Cells

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