Non-methylene-interrupted Fatty Acids with &amp;Delta;5 Unsaturation in &lt;i&gt;Sargassum&lt;/i&gt; Species

Kim, Gwang-Woo; Itabashi, Yutaka

doi:10.5650/jos.61.311

Cited by 6 publications

(4 citation statements)

References 30 publications

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“…In PUFAs the cis double bonds are the most frequently separated from each other by a single methylene group (methylene-interrupted polyenes). However, non-methylene-interrupted fatty acids have been found in low levels in Sargassum that may have anti-proliferation activity against cancer cells, but considerable more research is required [78][79][80]. Sargassum mats could be a potential valuable source of a wide variety of PUFAs for both animal and human nutrition, although the yields per unit of dry biomass could be low~0.5%.…”

Section: Lipidsmentioning

confidence: 99%

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

Milledge

Harvey

2016

JMSE

166

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Abstract:In recent years there have been massive inundations of pelagic Sargassum, known as golden tides, on the beaches of the Caribbean, Gulf of Mexico, and West Africa, causing considerable damage to the local economy and environment. Commercial exploration of this biomass for food, fuel, and pharmaceutical products could fund clean-up and offset the economic impact of these golden tides. This paper reviews the potential uses and obstacles for exploitation of pelagic Sargassum. Although Sargassum has considerable potential as a source of biochemicals, feed, food, fertiliser, and fuel, variable and undefined composition together with the possible presence of marine pollutants may make golden tides unsuitable for food, nutraceuticals, and pharmaceuticals and limit their use in feed and fertilisers. Discontinuous and unreliable supply of Sargassum also presents considerable challenges. Low-cost methods of preservation such as solar drying and ensiling may address the problem of discontinuity. The use of processes that can handle a variety of biological and waste feedstocks in addition to Sargassum is a solution to unreliable supply, and anaerobic digestion for the production of biogas is one such process. More research is needed to characterise golden tides and identify and develop commercial products and processes.

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Section: Lipidsmentioning

confidence: 99%

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

Milledge

Harvey

2016

JMSE

166

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“…At the opposite of the major FA, some rare ones were identified, among which were six nonmethylene interrupted (NMI) ones, namely, 5,9-20:2, 5,11-20:2, 11,16-20:2, 5,13-20:2, 5,11,14-20:3, and 5,11,14,17-20:4 (Jamieson and Reid, 1972;Kaneniwa et al, 1987;Khotimchenko, 1991;Kim and Itabashi, 2012;Narayan et al, 2004a). NMI 20:2 and 20:4 FA were detected in brown seaweeds, especially in Fucales order and Sargassaceae family (0.1-2.3% TFA and 0.05-0.6% TFA, respectively), the most abundant being 5,9-20:2.…”

Section: Figure 72mentioning

confidence: 99%

Lipids, Fatty Acids, Glycolipids, and Phospholipids

Wielgosz‐Collin

Kendel²,

Couzinet‐Mossion

2016

Seaweed in Health and Disease Prevention

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“…The Thermal Isomerization of Fatty Acid Esters GC-MS analysis of their DMOX derivatives showed that these peaks had the same molecular weight and fragmentation patterns as that of the EPA DMOX derivative (Fig. S3) 16,17) . Thus, these five peaks were tentatively identified as trans isomers of EPA-EE.…”

Section: Profiles Of Cis/trans Isomers Of Fatty Acid Estersmentioning

confidence: 99%

“…To determine the isomers of EPA-EE and the positions of double bond in them, their DMOX derivatives were analyzed using GC coupled with electron ionization mass spectrometry (EI-MS) ( QP2010; Shimadzu Corp., Kyoto, Japan) (Fig. S3) 16,17) . A Supelco SP-2560 column (100 m×0.25 mm×0.2 μm) or an Agilent DB-Wax column (30 m×0.25 mm×0.2 μm) was used as a stationary phase and helium was used as a carrier gas.…”

Section: Analysis Of Fatty Acid Estersmentioning

confidence: 99%

Natural Sulfur Compounds, Allyl Isothiocyanate and Diallyl Disulfide, Promote <i>Cis</i> to <i>Trans</i> Isomerization of Fatty Acid Esters during Heat Treatment

Obi,

Furihata,

Sato

et al. 2023

J. Oleo Sci.

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IntroductionNumerous biochemical and epidemiological studies suggest that excessive intake of trans fatty acids is a significant risk factor for cardiovascular diseases. For this reason, the trans fatty acid content in food products is regulated in several countries 1,2) . Although natural unsaturated fatty acids usually exist in the cis configuration, trans fatty acids are formed through industrial hydrogenation, biohydrogenation in the rumen of cows and sheep, and upon heating during cooking 3−5) . For example, Gotoh et al. (2018) reported that heating of oleic acid and linoleic acid at 180℃ enhanced their trans isomerization within 5 min 3) . Thus, trans fatty acids cannot be completely eliminated from the human diet, but efforts should be made to reduce their content in food products.The geometric isomerization of double bonds upon heating has been well studied in carotenoids, natural tetraterpene pigments 6,7) . Recent studies have demonstrated that several sulfur compounds such as isothiocyanates and polysulfides enhance the thermal isomerization of carot-

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Non-methylene-interrupted Fatty Acids with Δ5 Unsaturation in <i>Sargassum</i> Species

Cited by 6 publications

References 30 publications

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

Lipids, Fatty Acids, Glycolipids, and Phospholipids

Natural Sulfur Compounds, Allyl Isothiocyanate and Diallyl Disulfide, Promote <i>Cis</i> to <i>Trans</i> Isomerization of Fatty Acid Esters during Heat Treatment

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