scholarly journals Factors Influencing the Lipid Content and Fatty Acids Composition of Freshwater Fish: A Review

2020 ◽  
pp. 1-10
Author(s):  
Lucie Všetičková ◽  
Pavel Suchý ◽  
Eva Straková
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Freshwater Fish ◽  
Acid Composition ◽  
Geographical Location ◽  
Fish Farming ◽  
Fish Meat ◽  
Points Of View

Fish farming has a long tradition in Central Europe. Aquaculture is highly developed here and even so, freshwater fish meat consumption is still very low. Freshwater fish meat is an important source of n–3 long-chain polyunsaturated fatty acids (PUFA), principally eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) which have an indisputable effect on human health and prevent the genesis of human coronary disease. Previous researches revealed many aspects affecting the PUFA quantity. In general, the fatty acid composition of fish lipids affects age, seasonal change, nutrition, sex, reproductive cycle, geographical location, etc. This review represents a step towards the characterization of the fatty acid composition of economically important freshwater fish species from different points of view, including the above-mentioned factors and taking into consideration the way of stunning and differences of lipid composition in individual fish body sections.

scholarly journals Fatty acid composition of commercially important fish from Brazil

1993 ◽  
Vol 50 (3) ◽  
pp. 478-483 ◽  
Author(s):  
L.E. Gutierrez ◽  
R.C.M. da Silva
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Freshwater Fish ◽  
Acid Composition ◽  
Marine Fish ◽  
Commercially Important ◽  
Total Fat ◽  
Important Fish

Total fat and fatty acid composition of seven fresh-water and nine marine fish commercially important in Brazil were determined. Palmitic acid was the predominant saturated fatty acid in both freshwater and marine fish. In the fat from freshwater fish the total C-16 fatty acids were higher than in marine fish. Oleic acid was the most abundant monounsaturated fatty acid and it was found in higher levels in freshwater fish. The data revealed that most freshwater fish from Brazil examined were a poor source of eicosapentaenoic (20:5) and docosahexaenoic (22:6) acids. Of the marine fish analysed, only sardine and manjuba could be recommended as a good sources of n-3 fatty acids.

Comparison of lipid contents and fatty acid profiles of freshwater fish from the Atatürk Dam Lake / Atatürk Baraj Gölü’ndeki tatlısu balıklarının lipid içeriği ve yağ asidi profilinin karşılaştırılması

2016 ◽  
Vol 41 (3) ◽  
Author(s):  
Semra Kaçar ◽  
Mehmet Başhan
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Freshwater Fish ◽  
Acid Composition ◽  
Lipid Content ◽  
Methyl Esters ◽  
Fatty Acid Profiles ◽  
Liza Abu ◽  
Atatürk Dam Lake

AbstractObjective: The objective of the study was to examine the lipid levels, fatty acid profiles (especially EPA and DHA which play an important role in the prevention of a wide variety disorders such as; coronary heart disease, hypertension, rheumatoid arthritis, breast and colon cancer, Alzheimer disease, inflammation and autoimmune disorders) and n-3/n-6 ratio of some freshwater fish in Ataturk Dam Lake.Methods: Samples of 12 fish species from the Ataturk Dam Lake (Turkey) were investigated for their fat content and fatty acid composition (Aspius vorax, Carasobarbus luteus, Carassius gibelio, Liza abu, Acanthobrama marmid, Barbus xanthopterus, Cyprinion macrostomum, Carassius auratus, Calcalburnus mossulensis, Capoeta trutta, Mastacembelus simack, Chondrostoma regium). Total lipids were extracted with 10 ml of chloroform-methanol (2/1v/v). Samples containing muscle lipid were transesterified with acidified methanol. The fatty acid methyl esters were extracted with hexane. Fatty acids were detected by gas chromatography (GC).Results: The lipid content of species ranged from 0.78% to 2.51%. The highest lipid content was found in female C. trutta (2.51%). The major SFAs were myristic acid (C14:0), palmitic acid (C16:0) and stearic acid (C18:0). Oleic acid (C18:1 n-9) and palmitoleic acid (C16:1 n-7) were the prominent MUFA. The dominant PUFAs were linoleic acid (LA, C18:2 n-6), linolenic acid (ALA, C18:3 n-3), arachidonic acid (AA, C20:4 n-6), eicoesapentaenoic acid (EPA, C20:5 n-3) and docoesahexaenoic acid (DHA, C22:6 n-3). The ratio of n-3/n-6 PUFAs ranged from 1.22 to 4.71.Conclusion: In this study, the fatty acid composition varied between different species In addition, the highest n-3/n-6 ratios were observed in female C. trutta, C. mossulensis, C. regium and A. vorax. Therefore, these species are economically important fish considering n-3 fatty acids and n-3/n-6 ratios.

Intraerythrocytic Plasmodium falciparum utilize a broad range of serum-derived fatty acids with limited modification for their growth

Parasitology ◽  
2006 ◽  
Vol 133 (4) ◽  
pp. 399-410 ◽  
Author(s):  
F. MI-ICHI ◽  
K. KITA ◽  
T. MITAMURA
Keyword(s):  
Fatty Acids ◽  
Plasmodium Falciparum ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
De Novo ◽  
Severe Form ◽  
Lipid Species ◽  
New Strategy

Plasmodium falciparum causes the most severe form of malaria. Utilization of fatty acids in serum is thought to be necessary for survival of this parasite in erythrocytes, and thus characterization of the parasite fatty acid metabolism is important in developing a new strategy for controlling malaria. Here, we examined which combinations of fatty acids present in human serum support the continuous culture of P. falciparum in serum-free medium. Metabolic labelling and gas chromatography analyses revealed that, despite the need for particular fatty acids for the growth of intraerythrocytic P. falciparum, it can metabolize a broad range of serum-derived fatty acids into the major lipid species of their membranes and lipid bodies. In addition, these analyses showed that the parasite's overall fatty acid composition reflects that of the medium, although the parasite has a limited capacity to desaturate and elongate serum-derived fatty acids. These results indicate that the Plasmodium parasite is distinct from most cells, which maintain their fatty acid composition by coordinating de novo biosynthesis, scavenging, and modification (desaturation and elongation).

scholarly journals Comparative study of the fatty acid composition of light/dark mixture musculature of five freshwater fish from the region of Dezful, Iran

2021 ◽  
Vol 4 (1) ◽  
pp. 57
Author(s):  
Seyed Mehrshad Gaffari ◽  
Zahra Khoshnood
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Freshwater Fish ◽  
Acid Composition ◽  
Fish Species ◽  
Cyprinus Carpio ◽  
Omega 3 ◽  
Fish Samples ◽  
Squalius Cephalus

Fatty acid composition of fish is one of the key factors for the evaluation of fish nutritional value and it could be different based on fish species, habitat, nutrition and etc. The aim of the present study was to evaluate the fatty acid composition of five commercially important freshwater fish species taken from fisheries sites at Dez River, Iran. The fish samples included Heckel’s Orontes barbell, Luciobarbus pectoralis (Heckel, 1843), Chub, Squalius cephalus (Linnaeus, 1758), Common carp, Cyprinus carpio (Linnaeus, 1758), Brond-snout, Chondrostoma regium (Heckel, 1843) and Longspine scraper, Capoeta trutta (Heckel, 1843). The determination of fatty acid contents of the fish fillets were conducted by means of Gas chromatography. Results showed that Luciobarbus pectoralis fillets had the highest amount of fatty acids (43.49%). Cyprinus carpio had the highest amount of saturated fat (SAF) (29.43%) whereas the Luciobarbus pectoralis fillets had the highest MUFA (Monounsaturated fatty acid) (18.51%). The Squalius cephalus fillets possessed the highest amount of PUFA (polyunsaturated fatty acid) (1.87%). The Chondrostoma regium fillets revealed the highest n-6 (1.1%) while the Squalius cephalus fillets had the highest omega 3 (1.87%). The results of the present study showed that these freshwater fish are good sources of n-3 fatty acids, especially EPA and DHA, and could be considered as a valuable nutritional source.

Platelet Aggregation in Finnish Men and Its Relation to Fatty Acids in Platelets, Plasma and Adipose Tissue

1985 ◽  
Vol 54 (03) ◽  
pp. 563-569 ◽  
Author(s):  
M K Salo ◽  
E Vartiainen ◽  
P Puska ◽  
T Nikkari
Keyword(s):  
Fatty Acids ◽  
Adipose Tissue ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Platelet Aggregation ◽  
Acid Composition ◽  
Saturated Fatty Acids ◽  
Free Living ◽  
Ω3 Fatty Acids ◽  
Induced Aggregation

SummaryPlatelet aggregation and its relation to fatty acid composition of platelets, plasma and adipose tissue was determined in 196 randomly selected, free-living, 40-49-year-old men in two regions of Finland (east and southwest) with a nearly twofold difference in the IHD rate.There were no significant east-southwest differences in platelet aggregation induced with ADP, thrombin or epinephrine. ADP-induced platelet secondary aggregation showed significant negative associations with all C20-C22 ω3-fatty acids in platelets (r = -0.26 - -0.40) and with the platelet 20: 5ω3/20: 4ω 6 and ω3/ ω6 ratios, but significant positive correlations with the contents of 18:2 in adipose tissue (r = 0.20) and plasma triglycerides (TG) (r = 0.29). Epinephrine-induced aggregation correlated negatively with 20: 5ω 3 in plasma cholesteryl esters (CE) (r = -0.23) and TG (r = -0.29), and positively with the total percentage of saturated fatty acids in platelets (r = 0.33), but had no significant correlations with any of the ω6-fatty acids. Thrombin-induced aggregation correlated negatively with the ω3/6ω ratio in adipose tissue (r = -0.25) and the 20: 3ω6/20: 4ω 6 ratio in plasma CE (r = -0.27) and free fatty acids (FFA) (r = -0.23), and positively with adipose tissue 18:2 (r = 0.23) and 20:4ω6 (r = 0.22) in plasma phospholipids (PL).The percentages of prostanoid precursors in platelet lipids, i. e. 20: 3ω 6, 20: 4ω 6 and 20 :5ω 3, correlated best with the same fatty acids in plasma CE (r = 0.32 - 0.77) and PL (r = 0.28 - 0.74). Platelet 20: 5ω 3 had highly significant negative correlations with the percentage of 18:2 in adipose tissue and all plasma lipid fractions (r = -0.35 - -0.44).These results suggest that, among a free-living population, relatively small changes in the fatty acid composition of plasma and platelets may be reflected in significant differences in platelet aggregation, and that an increase in linoleate-rich vegetable fat in the diet may not affect platelet function favourably unless it is accompanied by an adequate supply of ω3 fatty acids.

scholarly journals A conjunction of sn-2 fatty acids and overall fatty acid composition combined with chemometric techniques increase the effectiveness of lard detection in fish feed

2021 ◽  
pp. 104308
Author(s):  
Mohamed Haniff Hanafy Idris ◽  
Yanty Noorzianna Manaf ◽  
Mohd Nasir Mohd Desa ◽  
Amalia Mohd Hashim ◽  
Muhamad Shirwan Abdullah Sani ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Fish Feed ◽  
Chemometric Techniques

scholarly journals Effect of Nitrogen Fertilisation and Inoculation with Bradyrhizobium japonicum on the Fatty Acid Profile of Soybean (Glycine max (L.) Merrill) Seeds

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 941
Author(s):  
Ewa Szpunar-Krok ◽  
Anna Wondołowska-Grabowska ◽  
Dorota Bobrecka-Jamro ◽  
Marta Jańczak-Pieniążek ◽  
Andrzej Kotecki ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Bradyrhizobium Japonicum ◽  
Field Experiments ◽  
Fatty Acid Content ◽  
Soybean Seeds ◽  
Oilseed Crop ◽  
Soybean Cultivars

Soybean is a valuable protein and oilseed crop ranked among the most significant of the major crops. Field experiments were carried out in 2016–2019 in South-East Poland. The influence of soybean cultivars (Aldana, Annushka), nitrogen fertilizer (0, 30, 60 kg∙ha−1 N) and inoculation with B. japonicum (control, HiStick® Soy, Nitragina) on the content of fatty acids (FA) in soybean seeds was investigated in a three-factorial experiment. This study confirms the genetic determinants of fatty acid composition in soybean seeds and their differential accumulation levels for C16:0, C16:1, C18:1n9, C18:2, C18:3, and C20:0 as well saturated (SFA), monounsaturated (MUFA), and polyunsaturated (PUFA) fatty acids. Increasing the rate from 30 to 60 kg ha−1 N did not produce the expected changes, suggesting the use of only a “starter” rate of 30 kg ha−1 N. Inoculation of soybean seeds with a strain of Bradyrhizobium japonicum (HiStick® Soy, BASF, Littlehampton, UK and Nitragina, Institute of Soil Science and Plant Cultivation–State Research Institute, Puławy, Poland) is recommended as it will cause a decrease in SFA and C16:0 acid levels. This is considered nutritionally beneficial as its contribution to total fatty acids determines the hypercholesterolemic index, and it is the third most accumulated fatty acid in soybean seeds. The interaction of cultivars and inoculation formulation on fatty acid content of soybean seeds was demonstrated. An increase in the value of C16:0 content resulted in a decrease in the accumulation of C18:1, C18:2, and C18:3 acids. The content of each decreased by almost one unit for every 1% increase in C16:0 content. The dominant effect of weather conditions on the FA profile and C18:2n6/C18:3n3 ratio was demonstrated. This suggests a need for further evaluation of the genetic progress of soybean cultivars with respect to fatty acid composition and content under varying habitat conditions.

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