Two New Monogalactosyl Diacylglycerols from Brown Alga Sargassum thunbergii

Kim, Young Hwan; Kim, Eun‐Hee; Lee, Chulhyun; Kim, Mi-Hee; Rho, Jung‐Rae

doi:10.1007/s11745-007-3035-7

Cited by 57 publications

(38 citation statements)

References 9 publications

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“…Other bioactive substances found in Sargassum sp. were monogalactosyldiacylglycerols that showed antifungal [23] and fibrinolytic activities [24]. Sulfoglycerolipid demonstrated antibacterial [25] and antiviral activities [26].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Composition of Lipids, Fatty Acids Pigments in the Brown Alga Sargassum pallidum: The Potential for Health

Gerasimenko¹,

Logvinov²

2016

OJMS

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The present study describes the content of total lipids (TL), the main components of polar and neutral lipids (NL) and photosynthetic pigments (PSP) in edible seaweed Sargassum pallidum (Ochrophyta) from the Sea of Japan, Russia, in different months of the year, taking into account life cycle. Special attention was paid to the fatty acids (FAs) of total lipids as well as the accumulation of important polyunsaturated fatty acids (PUFAs) in glyceroglycolipids (GL) and reserve lipids in the seasonal cycles of growth. The content of TL strongly varied in the course of a year. The major lipid components were GL (20.3% -36.4%) and NL (19.8% -30.6%), while phospholipids (PL) were present in negligible amounts (3.2% -6.9%). Significant seasonal variations were observed in content all classes of lipids. The PUFAs prevailed in total lipids and the content of n-6 PUFAs was higher than n-3 PUFAs on all stages of life with the exception of vegetation period. Monogalactosyldiacylglycerols (MGDG) and digalactosyldiacylglecerols (DGDG) were rich in PUFAs and n-3 PUFAs were dominated among them independently of stages of growth. Saturated fatty acids (SFA) were dominated in sulfoquinovosyldiacylglycerols (SQDG). Triacylglycerols (TAG) and diacylglycerols (DAG) contained many PUFAs, especially n-6 PUFAs. Significant concentration 20:3 n-6 was in the triacylglycerols. The concentration of chlorophylls and carotenoids was increased with the growth and maturation of S. pallidum and reached maximum in period of highest day length and water temperature. The content of pigments decreased with the onset of short days and decreasing water temperatures. Nutritional value and benefit for health of human this alga were evaluated. The n-6/n-3 PUFAs ratio, nutritional quality index (atherogenic and thrombogenic indices, and ratio between hypocholesterolemic and hypercholesterolemic fatty acids) were low, suggesting a high nutritional value of S. pallidum throughout the year.

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Section: Introductionmentioning

confidence: 99%

Seasonal Composition of Lipids, Fatty Acids Pigments in the Brown Alga Sargassum pallidum: The Potential for Health

Gerasimenko¹,

Logvinov²

2016

OJMS

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“…Monogalactosyl diacyl glycerols have been isolated from Sargassum thunbergii (Kim et al, 2007), Exophlyllum wentii (Illijas et al, 2009) and Chondria armata (Al-Fadhli et al, 2006). Sulfoglycolipids such as sulfoquinavosyldiacylglycerols presenting antivirus activity were identified in Porphyridium purpureum and other microalgae (Naumann et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Glycolipids from macroalgae: potential biomolecules for marine biotechnology?

Mattos¹,

Romanos²,

Souza³

et al. 2011

Rev. bras. farmacogn.

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Brown, red and green algae from the Southeastern coast of Brazil were successively extracted with chloroform/methanol 2:1 and 1:2 (v/v). The crude lipid extract was partitioned according to Folch and the lower phase enriched in glycolipids was fractionated on a silica gel column chromatography eluted with chloroform, acetone and methanol. Three major orcinol-reactive bands present in the acetone and methanol fractions were detected by thin-layer chromatography with chromatographic mobilities corresponding to sulfoglycolipids and glycosyldiacylglycerols. These fractions exhibited potent antiviral activity against HSV-1-ACVs and HSV-1-ACVr and present low toxicity for cell cultures. Purification and identification of these bioactive glycolipids will be necessary in order to elucidate their primary structures and mechanism of action.

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“…Sargassum thunbergii is an important brown algal species in littoral regions along the coasts of China, Japan, and Korea (Umezaki, 1974;Kim et al, 2007;Zhao et al, 2007;Zhang et al, 2009). This alga is important in the maintenance of healthy coastal ecosystems, because of its large biomass and high productivity.…”

Section: Introductionmentioning

confidence: 99%

Trade-off between vegetative regeneration and sexual reproduction of Sargassum thunbergii

et al. 2011

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An ecological demographic study was conducted from January to December 2009 at Changshan Island on the northern side of Shandong Peninsula, China. The study investigated stem regeneration and the resource trade-off between sexual reproduction and vegetative regeneration of the brown alga Sargassum thunbergii at the individual thallus level. Stem regeneration from the holdfast occurred year round but with significant seasonality, peaking in the early summer. Both percentage of fertile stems and reproductive effort were negatively correlated with stem regeneration in the middle and later periods of sexual reproduction. Furthermore, the correlation coefficients increased significantly with time. These observations suggested that an increase in resource allocation to sexual reproduction would lead to a decrease in allocation to vegetative regeneration during the reproductive period. Reproductive effort was lower and stem regeneration was higher in the wave-exposed location compared with the sheltered location, indicating that allocation of resources between sexual reproduction and vegetative regeneration varied with location. When reproductive tissues were removed, the number of new stems produced from holdfasts increased, and when new stems were removed, an increase in reproductive effort occurred. These results suggest that trade-off between sexual reproduction and vegetative regeneration occurs in S. thunbergii.

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Two New Monogalactosyl Diacylglycerols from Brown Alga Sargassum thunbergii

Cited by 57 publications

References 9 publications

Seasonal Composition of Lipids, Fatty Acids Pigments in the Brown Alga <i>Sargassum pallidum</i>: The Potential for Health

Seasonal Composition of Lipids, Fatty Acids Pigments in the Brown Alga <i>Sargassum pallidum</i>: The Potential for Health

Glycolipids from macroalgae: potential biomolecules for marine biotechnology?

Trade-off between vegetative regeneration and sexual reproduction of Sargassum thunbergii

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Two New Monogalactosyl Diacylglycerols from Brown Alga Sargassum thunbergii

Cited by 57 publications

References 9 publications

Seasonal Composition of Lipids, Fatty Acids Pigments in the Brown Alga &lt;i&gt;Sargassum pallidum&lt;/i&gt;: The Potential for Health

Seasonal Composition of Lipids, Fatty Acids Pigments in the Brown Alga &lt;i&gt;Sargassum pallidum&lt;/i&gt;: The Potential for Health

Glycolipids from macroalgae: potential biomolecules for marine biotechnology?

Trade-off between vegetative regeneration and sexual reproduction of Sargassum thunbergii

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Product

Resources

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Seasonal Composition of Lipids, Fatty Acids Pigments in the Brown Alga <i>Sargassum pallidum</i>: The Potential for Health

Seasonal Composition of Lipids, Fatty Acids Pigments in the Brown Alga <i>Sargassum pallidum</i>: The Potential for Health