sea grasses - novel marine nutraceuticals

Bharathi, N. Pushpa; Amudha, P.; Vanitha, V.

doi:10.22376/ijpbs.2016.7.4.b567-573

Cited by 13 publications

(16 citation statements)

References 8 publications

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“…While young leaf extracts are not attractive, old leaf ones are, conversely, biotechnologically appealing. Organismal ageing induces a senescence process that accentuates the modulation of physiology, biochemistry, and functioning of biological machinery [36]. For instance, the higher contribution of carbohydrates into the organic matter content, detected in our study, is a common feature in plants during ageing, potentially promoting or triggering senescence [37][38][39][40][41].…”

Section: Discussionmentioning

confidence: 50%

“…The decrease in the chlorophyll concentration in old leaves, as already observed [42] might induce a lowering of light energy transfer in the cells, that in turn would explain the lower organic matter content in aged leaves compared to the young leaves. Senescence is regulated by many processes [36] and by ROS, which acts as signaling for production of secondary metabolites involved in several defense and protective mechanisms [43,44]. Even though concentration of carotenoids might remain stable during ageing/senescence in some plants [45], growth stage of a photosynthetic organism notably affects the bioactive compounds content and antioxidant activity often increasing in aged biological material [20,[46][47][48][49][50].…”

Section: Discussionmentioning

confidence: 99%

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In Vitro Evaluation of Antioxidant Potential of the Invasive Seagrass Halophila stipulacea

et al. 2021

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Marine organisms with fast growth rates and great biological adaptive capacity might have biotechnological interests, since ecological competitiveness might rely on enhanced physiological or biochemical processes’ capability promoting protection, defense, or repair intracellular damages. The invasive seagrass Halophila stipulacea, a non-indigenous species widespread in the Mediterranean Sea, belongs to this category. This is the premise to investigate the biotechnological interest of this species. In this study, we investigated the antioxidant activity in vitro, both in scavenging reactive oxygen species and in repairing damages from oxidative stress on the fibroblast human cell line WI-38. Together with the biochemical analysis, the antioxidant activity was characterized by the study of the expression of oxidative stress gene in WI-38 cells in presence or absence of the H. stipulacea extract. Concomitantly, the pigment pool of the extracts, as well as their macromolecular composition was characterized. This study was done separately on mature and young leaves. Results indicated that mature leaves exerted a great activity in scavenging reactive oxygen species and repairing damages from oxidative stress in the WI-38 cell line. This activity was paralleled to an enhanced carotenoids content in the mature leaf extracts and a higher carbohydrate contribution to organic matter. Our results suggest a potential of the old leaves of H. stipulacea as oxidative stress damage protecting or repair agents in fibroblast cell lines. This study paves the way to transmute the invasive H. stipulacea environmental threat in goods for human health.

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Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 99%

In Vitro Evaluation of Antioxidant Potential of the Invasive Seagrass Halophila stipulacea

et al. 2021

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“…Karakhanov). nanoparticles have the advantage over other types of metaldendrite catalysts: the poly(propyleneimine) (PPI) and PAMAM dendrimers commonly used as a matrix can be relatively readily synthesized in laboratory from commercially available precursor [13][14][15][16][17][18]. We have proposed a method for synthesising a heterogeneous support based on polyamidoamine dendrimers, binding them to one another with special cross-linking agents, such as diisocyanates.…”

Section: Introductionmentioning

confidence: 99%

Palladium nanoparticles encapsulated in a dendrimer networks as catalysts for the hydrogenation of unsaturated hydrocarbons

Караханов

Максимов

Zakharian

et al. 2015

Journal of Molecular Catalysis A: Chemical

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“…While young leaf extracts are not attractive, old leaf ones are, conversely, biotechnologically appealing. Organismal ageing induces a senescence process that in turn accentuates the modulation of physiology, biochemistry and functioning of biological machinery (Pushpa Bharathi et al 2016). Senescence is regulated by many processes (Pushpa Bharathi et al 2016) and by ROS, which act as signalling for production of secondary metabolites involved in several defence and protective mechanisms (Wingler et al 2006(Wingler et al , 2009.…”

Section: Discussionmentioning

confidence: 99%

Testing the Halophila Stipulacea Environmental Threat as A Potential Antioxidant Agent

Sansone

Galasso

Martire

et al. 2020

Preprint

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Marine biotechnology is promising to provide new solutions to society and humans, such as for health protection or natural treatments against diseases. In this framework, different strategies are explored to select marine organisms to initiate the pipeline, hopefully ended by the product development. Organisms with fast growth rates and great biological adaptive capacity are of biotechnological interests, since competitiveness might rely on increased physiological or biochemical processes’ capability seeking to protect, defend on repair intracellular damages. This study focussed on the fast-growing and invasive seagrass Halophila stipulacea, a non-indigenous species widespread in the Mediterranean Sea to investigate its antioxidant activity, both in scavenging reactive oxygen species and in repairing damages from oxidative stress on human fibroblast cells. Results indicated that the ethanol/water extracts of the leaves of H. stipulacea were able to scavenge reactive oxygen species and in repair damages from oxidative stress. Moreover, greater bioactivities were observed in old leaves compared to young ones, paralleled with a higher content in carotenoids and carbohydrate contribution to organic matter content. Our results suggest a potential of the (old) leaves of H. stipulacea as skin-protective and/or oxidative stress damage repair agents. This study paves the way to transmute the invasive H. stipulacea environmental threat in goods for human health.

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sea grasses - novel marine nutraceuticals

Cited by 13 publications

References 8 publications

In Vitro Evaluation of Antioxidant Potential of the Invasive Seagrass Halophila stipulacea

In Vitro Evaluation of Antioxidant Potential of the Invasive Seagrass Halophila stipulacea

Palladium nanoparticles encapsulated in a dendrimer networks as catalysts for the hydrogenation of unsaturated hydrocarbons

Testing the Halophila Stipulacea Environmental Threat as A Potential Antioxidant Agent

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