The lipid composition of the abdominal muscle of shrimp Crangon crangon from the Gulf of Gdansk in spring and winter periods

The composition of fatty acids and sterols of Crangon crangon abdomen muscle was determined during two periods in the year 2010/2011. For determination of lipids classes, especially of fatty acids and sterols, high performance liquid chromatography with a laser light-scattering detector and gas chromatography–mass spectrometry were applied. Diversity and variety of saturated and unsaturated fatty acids was the highest during the spring period. Twenty-seven free fatty acids with from nine to 24 carbon atoms were determined in the spring periods. Among this fraction, 14 saturated and 13 unsaturated fatty acids (eight mono- and five polyunsaturated) were present. Only seven saturated and four unsaturated free fatty acids (14:2, 17:1, 16:1 and 18:1) were identified in December 2010. Arachidonic acid (20:4) and eicosapentaenoic acid (20:5) were detected in these two periods, and during the spring season an additional essential fatty acid—docosahexaenoic acid (22:6)—was present, which was not detected in the winter period. The number of identified sterols was correlated with phytoplankton, which was abundant during April 2011. Also, the sterol fraction in winter periods was very poor—only cholesterol was detected.

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Lipids of adult brown shrimp, Crangon crangon: seasonal variations in fatty acids class composition

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315414000162 ◽

2014 ◽

Vol 94 (5) ◽

pp. 993-1000 ◽

Cited By ~ 6

Author(s):

Adriana Mika ◽

Marek Gołębiowski ◽

Edward Skorkowski ◽

Piotr Stepnowski

Keyword(s):

Fatty Acids ◽

Seasonal Variations ◽

High Performance ◽

Neutral Lipids ◽

Abdominal Muscle ◽

Brown Shrimp ◽

Gas Chromatography Mass Spectrometry ◽

Crangon Crangon ◽

Fatty Acids Profile ◽

Lipid Mass

Sea food is very rich in lipids. The brown shrimp, Crangon crangon is a most popular and very valuable taxon in the White Sea, in the Mediterranean and in the Black Seas. The aim of this study was to determine the seasonal variations of lipids in C. crangon muscle tissue using gas chromatography–mass spectrometry. The lipids were separated into groups: neutral lipids (triacylglycerols, free fatty acids, sterols) and polar lipids (phospholipids), by high performance liquid chromatography with a laser light-scattering detector. Fatty acids were identified using the GC-MS technique. The mainly fatty acids were 16:0, 18:0 (saturated FAs), 16:1, 18:1 (monounsaturated FAs), 20:4 (ARA), 20:5 (EPA) and 22:6 (DHA). The largest amounts of fatty acids in the muscle were observed in spring; these were the result of collecting food after winter and before reproduction. The muscle lipid content was 32.2 ± 1.8 mg g−1. The summer was the poorest season and the lipid value was 7.7 ±0.4 mg g−1. The levels of muscle neutral lipids (NL) oscillated between 80% (autumn) and 90% (spring). The temperature and salinity has a significant influence on content and profile of fatty acids. This work will help to understand the biology, the seasonal variation in lipid mass, lipid classes content and fatty acids profile in the abdominal muscle of C. crangon.

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Advances in the Chromatographic Separation and Determination of Bioactive Compounds for Assessing the Nutrient Profile of Nuts

Current Analytical Chemistry ◽

10.2174/1573411016999200729111951 ◽

2020 ◽

Vol 16 ◽

Author(s):

Natasa P. Kalogiouri ◽

Natalia Manousi ◽

Erwin Rosenberg ◽

George A. Zachariadis ◽

Victoria F. Samanidou

Keyword(s):

Fatty Acids ◽

Phenolic Compounds ◽

Bioactive Compounds ◽

High Performance ◽

Unsaturated Fatty Acids ◽

Nutritional Deficiencies ◽

Analytical Technique ◽

High Volatility ◽

Analytical Approaches

Background:: Nuts have been incorporated into guidelines for healthy eating since they contain considerable amounts of antioxidants and their effects are related to health benefits since they contribute to the prevention of nutritional deficiencies. The micronutrient characterization is based mainly on the determination of phenolics which is the most abundant class of bioactive compounds in nuts. Terpenes constitute another class of bioactive compounds that are present in nuts and show high volatility. The analysis of phenolic compounds and terpenes are very demanding tasks that require optimization of the chromatographic conditions to improve the separation of the components. Moreover, nuts are rich in unsaturated fatty acids and they are therefore considered as cardioprotective. Gas chromatography is the predominant instrumental analytical technique for the determination of derivatized fatty acids and terpenes in food matrices, while high performance liquid chromatography is currently the most popular technique for the determination of phenolic compounds Objective:: This review summarizes all the recent advances in the optimization of the chromatographic conditions for the determination of phenolic compounds, fatty acids and terpenes in nuts Conclusion:: The state-of-the art in the technology available is critically discussed, exploring new analytical approaches to reduce the time of analysis and improve the performance of the chromatographic systems in terms of precision, reproducibility, limits of detection and quantification and overall quality of the results

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Solvent Extraction and GC-MS Analysis of Sesame Seeds for Determination of Bioactive Antioxidant Fatty Acid/Fatty Oil Components

Drug Research ◽

10.1055/s-0043-123466 ◽

2017 ◽

Vol 68 (06) ◽

pp. 344-348 ◽

Cited By ~ 3

Author(s):

Abdul Qadir ◽

Athar Ali ◽

Muhammad Arif ◽

Abdulmohsen Al-Rohaimi ◽

Satya Singh ◽

...

Keyword(s):

Fatty Acids ◽

Palmitic Acid ◽

Unsaturated Fatty Acids ◽

Radical Scavenging ◽

Ethanolic Extract ◽

Gas Chromatography Mass Spectrometry ◽

Sesame Seeds ◽

Fatty Oil ◽

Oleoyl Chloride

AbstractThe seed kernels of Sesamum indicum L. (family: Pedaliaceae) were extracted with ethanol and yield of components determined by Gas Chromatography/Mass Spectrometry (GC/MS). The free radical scavenging activities of ethanolic extract against1, 1-Diphenyl-2-picrylhydrazyl (DPPH) were determined by UV spectrophotometer at 517 nm. Phytochemical screening revealed the presence of numerous bioactive compounds including steroids, phenolic, terpenoids, fatty acids and different types of ester compounds. The ethanolic extract was purified and analyzed by GC MS.The prevailing compounds found in ethanolic extract were Carvacrol (0.04%),Sesamol (0.11%), 4-Allyl-2-methoxy-phenol(0.04%),Palmitic acid (1.08%), cis-9-Hexadecenal (85.40%), Lineoleoyl chloride (0.52%), Palmitic acid β-monoglyceride (0.40%), Dihydro-aplotaxene (0.61%), Oleoyl chloride (1.11%), (+)-Sesamin (4.73%), 1,3-Benzodioxole, 5-[4-(1,3-benzodioxol-5-yloxy)tetrahydro-1 H,3 H-furo [3,4-c]furan-1-yl], [1 S-(1,3,4,6α.), (2.01%)], 6-Nitrocholest-5-en-3-yl acetate (0.22%), Ergost-5-en-3β-ol (2.35%) and 24-Propylidenecholesterol (0.16%). The presence ofsaturated and unsaturated fatty acids in ethanolicextract justifies the use of this plant to treat many ailments in folk and traditional medicine. Ethanolic extract have shown significant antioxidant activity(IC50120.38±2.8 µg/ml). The presence of phenolic (Sesamol), lignin (Sesamin) compounds and unsaturated fatty acids are reported as possible contributor for antioxidantactivity of seed extract.

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