Southern Ocean seaweeds: A resource for exploration in food and drugs

Dhargalkar, V.K.; Verlecar, X.N.

doi:10.1016/j.aquaculture.2008.11.013

Cited by 117 publications

(71 citation statements)

References 77 publications

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“…Presently, seaweed-based food additives are commonly used in the preparation of fast food. In this context, virtually every one eats some processed seaweeds every day (Dhargalkar and Verlecar 2009). Edible macroalgae are rich in resistant protein and dietary fiber (Mamatha et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Nutritional value of selected macroalgae

et al. 2010

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Macroalgae are traditionally used in human and animal nutrition. Their protein and fiber content have been widely studied and differ according to the species, their geographic origin and their seasonal conditions. In addition to their value for human nutrition, seaweeds have multiple therapeutically applications (e.g., weight control, hypocholesterolemic, antioxidant and antitumor activities, others) and, in general, contribute and promote human health. In the archipelago of the Azores, the consumption of seaweeds is widespread and accepted as a common practice in some islands. This work is aimed at providing information on the protein and fiber content of the locally consumed species, to promote this regional food product that can be potentially profitable from the biotechnology and commercial perspective, and also benefit public health, particularly, taking into account the low level of marine pollution in the Azores archipelago. Protein and fiber content of eight seaweeds (Porphyra sp., Osmundea pinnatifida, Pterocladiella capillacea, Sphaerococcus coronopifolius, and Gelidium microdon, Rhodophyta; Cystoseira abies-marina and Fucus spiralis, Phaeophyta; Ulva compressa, Chlorophyta) were determined using the Kjeldahl method and the Weende method, respectively. The protein content ranged from 6.81 to 26.62 of dry weight for C. abies-marina and U. compressa, respectively. Fiber content was generally higher as compared with that in seaweeds from other origins and ranged from 33.82 to 63.88 for O. pinnatifida and F. spiralis, respectively.

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Section: Introductionmentioning

confidence: 99%

Nutritional value of selected macroalgae

et al. 2010

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“…Among marine organisms, seaweeds produce a diverse array of novel secondary metabolites as a chemical defense strategy [35] and these are characterized by a broad spectrum of biological activities [6,10,11,[13][14][15]17,19,20,36].…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of red alga Asparagopsis taxiformis extracts against Leishmania infantum

et al. 2015

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“…According to sulfation patterns and the presence of 3,6-anhydro-α-galactopyranose in place of α-galactopyranose, carrageenans can be classified into 15 different classes (Lahaye 2001;Usov 2011). These classes of polysaccharides have been used widely in the food industry as gelling and thickening agents (Dhargalkar and Verlecar 2009;Jiao et al 2011;Usov 2011). In addition, they display a wide range of biological activities, which may be useful for medical application.…”

Section: Introductionmentioning

confidence: 99%

“…Iridaea cordata (Turner) Bory, an Antarctic red seaweed, is abundant in upper sublittoral zone, which is also colonized with Palmaria decipiens (Amsler et al 1998;Clayton et al 1997;Dhargalkar 1990;Dhargalkar and Verlecar 2009;Wiencke et al 2002;Wiencke and Amsler 2012;Zacher et al 2009). To our knowledge, this species has only been investigated for its population biomass (Cormaci et al 1996), physiology (Zacher et al 2009), life cycle (Wiencke et al 2002), endophyte-host relationship (Schoenrock et al 2015), and nutritional composition analysis (Peters et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Anticancer Activity of Sulfated Polysaccharides Isolated from the Antarctic Red Seaweed Iridaea cordata

Kim¹,

Kim²,

Koo³

et al. 2016

Ocean and Polar Research

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: This study aimed to isolate and characterize sulfated polysaccharides (SPs) from Iridaea cordata and evaluate their anticancer activity. SPs of the Antarctic red seaweed were obtained by CaCl 2 (SP1) and ethanol precipitations (SP2) following diluted acid extraction at room temperature. Yields of SP1 and SP2 were approximately 14% and 23%, respectively, of the dry weight of red seaweed. The average molecular mass of the SP1 and SP2 was estimated about 1.84 × 10 3 and 1.42 × 10 3 kDa, respectively, by size-fractionation High-Performance Liquid Chromatography (HPLC). From the High-Performance AnionExchange Chromatography-Pulsed Amperometric Detection (HPAEC-PAD) analysis, the main monosaccharide was galactose with glucose and fucose as minor components. The sulfate content of SP2 (40.4%) was slightly higher than that of SP1 (33.8%). The FT-IR spectra also showed characteristic band of carrageenan-like sulfated polysaccharides. Taken together the SPs are thought to be carrageenan-like sulfated galactan. The polysaccharides (SPs) from I. cordata exhibited weak antitumor activity against PC-3 (prostate cancer), HeLa (cervical cancer), and HT-29 (human colon adenocarcinoma). To our knowledge, this is the first data on biological activity of the Antarctic red seaweed I. cordata.

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Southern Ocean seaweeds: A resource for exploration in food and drugs

Cited by 117 publications

References 77 publications

Nutritional value of selected macroalgae

Nutritional value of selected macroalgae

Effectiveness of red alga Asparagopsis taxiformis extracts against Leishmania infantum

Anticancer Activity of Sulfated Polysaccharides Isolated from the Antarctic Red Seaweed Iridaea cordata

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