Influence of Harvest Intervals on Growth Responses and Fatty Acid Content of Purslane (Portulaca oleracea)

A greenhouse study was conducted to evaluate the influence of harvest intervals on biomass yield and omega fatty acids of ‘Golden purslane’ (Portulaca oleracea). Nutrients were supplied as a modified full-strength Hoagland solution two to three times weekly. Plants were harvested sequentially at 20, 40, and 60 days after transplanting (DAT) corresponding to 42, 63, and 84 days after sowing. Fatty acids were determined using a gas chromatography–mass spectrometry. Harvest intervals significantly influenced foliage fresh and dry weight, leaf number and plant height, and root length and fresh weight and were greatest at 60 DAT. Fatty acid analysis verified the presence of myristate, palmitate, linoleate, and linolenate at 20 DAT and in all three harvests, whereas stearate and oleate were detected only in the last two harvests (40 and 60 DAT). Linoleate, palminate, and linolenate were the most abundant fatty acids in purslane with levels in excess of 300 mg·kg−1. Those for myristate, stearate, and oleate were in excess of 200 mg·kg−1. The ratio of omega-6/omega-3 ranged from 0.44 for Harvest 1 to 1.1 for Harvest 3, whereas ratios for harvest intervals two and three were equal to or greater than the recommended daily human requirement. Results showed qualitative and quantitative differences of harvest intervals of purslane, suggesting that an optimal ratio of omega-6 to omega-3 fatty acids can be achieved ≈20 DAT.

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Content of Higher Fatty Acids in Green Vegetables

Czech Journal of Food Sciences ◽

10.17221/621-cjfs ◽

2009 ◽

Vol 27 (Special Issue 1) ◽

pp. S125-S129 ◽

Cited By ~ 17

Author(s):

R. Vidrih ◽

S. Filip ◽

J. Hribar

Keyword(s):

Fatty Acids ◽

Fatty Acid ◽

Acid Content ◽

Unsaturated Fatty Acids ◽

Fatty Acid Content ◽

Omega 3 ◽

Omega 6 ◽

Radish Sprouts ◽

Total Fatty Acids ◽

Higher Fatty Acids

Green vegetables are considered an important source of some nutritionally important constituents that have health benefits (e.g. vitamins, minerals, antioxidants, fibre). Epidemiological data suggest that consuming a diet rich in fruit and vegetables can lower the risks for chronic diseases, such as cardiovascular diseases and cancer. Over the past 100–150 years, there have been enormous increases in the consumption of omega-6 fatty acids due to the increased intake of vegetable oils from various seeds. Studies have indicated that a high intake of omega-6 fatty acids shifts the physiological state to one that is prothrombotic and pro-aggregatory, whereas omega-3 fatty acids have anti-inflammatory, antithrombotic, anti-arrhythmic, hypolipidemic and vasodilatory properties. Literature data regarding the contents of higher fatty acids (e.g. omega-6 fatty acids) in vegetables are scarce, although vegetables are known to contain a high proportion of n-3 fatty acids. Here, the fatty acid content and composition was determined for 26 green vegetables that are commonly available in Slovenia, by gas-liquid chromatography and <I>in situ</I> transesterification. The fatty acid analysis revealed C16:0, C16:1, C18:0, C18:1, C18:2n-6 and C18:3n-3. The total fatty acid content in the vegetables ranged from 500 mg/100 g fresh weight (f.w.) in red cabbage, to 4.000 mg/100 g f.w. in tarragon. The proportion of saturated fatty acids (as g/100 g total fatty acids) ranged from 12% to 35%. All of the vegetables contained a high proportion of poly-unsaturated fatty acids (PUFAs), ranging from 45% to 81% of total fatty acids. The omega-3 PUFA proportion ranged from 5% in carrot to 60% in tarragon. The content of mono-unsaturated fatty acids ranged from 1% to 25%. French beans, tarragon and radish sprouts contained the highest concentrations of C16:1, at 5 mg/100 g f.w. Consumption of 100 g of tarragon meets 13.2% of daily requirements for α-linolenic acid; similarly, for radish sprouts 9.4%, for mangold 6.9%, for ruccola 5.4%, for green salad 5.0%, and for kale 4.7%. Green vegetables are an important source of 18:3n-3 PUFAs, especially for vegetarian populations.

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Omega-3 and Omega-6 Fatty Acids have Distinct Effects on Endothelial Fatty Acid Content and Nitric Oxide Bioavailability

Prostaglandins Leukotrienes and Essential Fatty Acids ◽

10.1016/j.plefa.2021.102337 ◽

2021 ◽

pp. 102337

Author(s):

Samuel CR Sherratt ◽

Hazem Dawoud ◽

Deepak L Bhatt ◽

Tadeusz Malinski ◽

R Preston Mason

Keyword(s):

Nitric Oxide ◽

Fatty Acids ◽

Fatty Acid ◽

Acid Content ◽

Fatty Acid Content ◽

Omega 3 ◽

Omega 6 ◽

Nitric Oxide Bioavailability

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EFFECT OF GINGER, LEMURU FISH OIL SAPONIFICATION AND OLIVE OIL ON COMPOSITION FATTY ACID OF BEEF

Jurnal Agroindustri ◽

10.31186/j.agroind.4.1.31-39 ◽

2014 ◽

Vol 4 (1) ◽

pp. 31-39

Author(s):

Siwitri Kadarsih

Keyword(s):

Fatty Acids ◽

Fatty Acid ◽

Fish Oil ◽

Olive Oil ◽

Rice Bran ◽

Dry Matter ◽

Unsaturated Fatty Acids ◽

Saturated Fatty Acids ◽

Omega 3 ◽

Omega 6

The objective was to get beef that contain unsaturated fatty acids (especially omega 3 and 6), so as to improve intelligence, physical health for those who consume. The study design using CRD with 3 treatments, each treatment used 4 Bali cattle aged approximately 1.5 years. Observations were made 8 weeks. Pasta mixed with ginger provided konsentrat. P1 (control); P2 (6% saponification lemuru fish oil, olive oil 1%; rice bran: 37.30%; corn: 62.70%; KLK: 7%, ginger paste: 100 g); P3 (lemuru fish oil saponification 8%, 2% olive oil; rice bran; 37.30; corn: 62.70%; KLK: 7%, ginger paste: 200 g). Konsentrat given in the morning as much as 1% of the weight of the cattle based on dry matter, while the grass given a minimum of 10% of the weight of livestock observation variables include: fatty acid composition of meat. Data the analyzies qualitative. The results of the study showed that the composition of saturated fatty acids in meat decreased and an increase in unsaturated fatty acids, namely linoleic acid (omega 6) and linolenic acid (omega 3), and deikosapenta deikosaheksa acid.Keywords :

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The Fatty Acid Profile in Patients with Newly Diagnosed Diabetes: Why It Could Be Unsuspected

International Journal of Pediatrics ◽

10.1155/2017/6424186 ◽

2017 ◽

Vol 2017 ◽

pp. 1-5 ◽

Cited By ~ 3

Author(s):

C. Castro-Correia ◽

S. Sousa ◽

S. Norberto ◽

C. Matos ◽

V. F. Domingues ◽

...

Keyword(s):

Fatty Acids ◽

Fatty Acid ◽

Control Group ◽

Healthy Children ◽

Omega 3 ◽

Alpha Linolenic Acid ◽

Diabetes Group ◽

Diabetic Children ◽

Omega 6 ◽

Diagnosed Diabetes

Context. Several studies have shown a link between proinflammatory activity and the presence or deficit of some fatty acids. Inflammation is associated with several diseases including diabetes.Objective. To characterize and compare the fatty acids profiles in children with inaugural type 1 diabetes, diabetic children (at least 1 year after diagnosis), and healthy children.Design. Plasma fatty acids profiles in children with inaugural diabetes, children with noninaugural diabetes, and controls, all of whom were prepubescent with a BMI < 85th percentile, were evaluated.Results. Omega-3 fatty acid levels were higher in recently diagnosed subjects with diabetes than in controls. The ratio of omega-6/omega-3 fatty acids was higher in the control population. Omega-6 fatty acid levels were higher in the nonrecent diabetic subjects than in the children with recently diagnosed diabetes, and the levels were higher in the nonrecent diabetes group compared to the control group.Conclusion. Our findings showed higher levels of alpha-linolenic acid, EPA, and DHA, as well as mono- and polyunsaturated fatty acids, in diabetic children. These findings reinforce the importance of precocious nutritional attention and intervention in the treatment of diabetic children.

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Determination of Omega-3 and Omega-6 Fatty Acid Content by Gas-Liquid Chromatography in Milk Fat From Enriched Products-Interlaboratory Collaborative Studies (2008) - by International Dairy Federation

International Journal of Dairy Technology ◽

10.1111/j.1471-0307.2009.00485.x ◽

2009 ◽

Vol 62 (2) ◽

pp. 289-290

Author(s):

Frédéric Destaillats

Keyword(s):

Liquid Chromatography ◽

Fatty Acid ◽

Milk Fat ◽

Fatty Acid Content ◽

Gas Liquid Chromatography ◽

Omega 3 ◽

Collaborative Studies ◽

Omega 6 ◽

International Dairy Federation

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139 Nutrigenetics/Nutrigenomics: Nutrient-gene interactions in humans and animals

Journal of Animal Science ◽

10.1093/jas/skz258.274 ◽

2019 ◽

Vol 97 (Supplement_3) ◽

pp. 134-135

Author(s):

Artemis P Simopoulos

Keyword(s):

Cardiovascular Disease ◽

Fatty Acids ◽

Fatty Acid ◽

Genetic Variants ◽

Genetic Variant ◽

Fatty Acid Desaturase ◽

Omega 3 Fatty Acids ◽

Human Beings ◽

Omega 3 ◽

Omega 6

Abstract Human beings evolved on a diet that was balanced in the omega-6 and omega-3 essential fatty acids to which their genes were programmed to respond. Studies on gene-nutrient interactions using methods from molecular biology and genetics have clearly shown that there are genetic differences in the population, as well as differences in the frequency of genetic variations that interact with diet and influence the growth and development of humans and animals, as well as overall health and chronic disease. Nutrigenetics refers to studies on the role of genetic variants and their response to diet. For example, persons with genetic variants in the metabolism of omega-6 and omega-3 fatty acids have different levels of arachidonic acid (AA) and eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) based on the type of genetic variant in the Fatty Acid Desaturase 1 (FADS1) and Fatty Acid Desaturase 2 (FADS2). At the same level of linoleic acid (LA) and alpha-linolenic acid (ALA) a person with a genetic variant that increases the activity of the FADS1 will have a higher AA in the red cell membrane phospholipids and a higher risk for obesity and cardiovascular disease. Nutrigenomics refers to how nutrients (diets) influence the expression of genes. For example, diets rich in omega-3 fatty acids, EPA and DHA decrease the expression of inflammatory genes and as a result decrease the risk of obesity and cardiovascular disease. Thus, through studies on Nutrigenetics/Nutrigenomics nutritional science stands at its “golden threshold” where personalized nutrition is the future, to improve an individual’s health.

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The effect of dietary herring meal on the omega-3 fatty acid content of plasma and egg yolk lipids of laying hens

Canadian Journal of Animal Science ◽

10.4141/cjas95-036 ◽

1995 ◽

Vol 75 (2) ◽

pp. 247-253 ◽

Cited By ~ 39

Author(s):

D. M. Nash ◽

R. M. G. Hamilton ◽

H. W. Hulan

Keyword(s):

Fatty Acid ◽

Acid Content ◽

Plasma Lipids ◽

Laying Hens ◽

Control Diet ◽

Fatty Acid Content ◽

Total Lipid Content ◽

Egg Yolk ◽

Omega 3 ◽

Omega 6

The effect of dietary HM on plasma and egg yolk lipids of commercial White Leghorn hens was studied over 350 d. A total of 192 birds were given corn-wheat-soybean meal diets that contained either 0, 4, 8, or 12% HM. Analysis of plasma lipids at four periods in the laying cycle (169, 211, 253 and 287 d) and at five times during the test day (0800, 1000, 1200, 1400 and 1600 h) were performed. Egg lipids were analyzed at each of the four periods.Plasma total lipids were inversely related (P < 0.01) to dietary HM levels while omega-3 and omega-6 fatty acid levels were positively and inversely related (P < 0.001), respectively. HM levels did not influence the total lipid content of the egg yolk lipids but omega-3 and omega-6 fatty acid content were positively and inversely related, respectively. The levels of eicosapentaenoic (20:5n3, EPA) and docosahexaenoic (22:6n3, DHA) acid were 11 and 3 times higher, respectively (7.8 and 100.5 mg yolk−1) in the yolks from hens given the 12% HM diet compared to the control diet. Key words: Herring meal, laying hens, omega-3 fatty acids, eicosapentaenoic acid, docosahexaenoic acid

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Effect of animal age and gender on fatty acid and elemental composition in Austrian beef applicable for authentication purposes

Chemical Papers ◽

10.2478/s11696-012-0179-6 ◽

2013 ◽

Vol 67 (3) ◽

Cited By ~ 4

Author(s):

Adriána Bednárová ◽

Ján Mocák ◽

Walter Gössler ◽

Margit Velik ◽

Josef Kaufmann ◽

...

Keyword(s):

Fatty Acids ◽

Fatty Acid ◽

Elemental Composition ◽

Unsaturated Fatty Acids ◽

Saturated Fatty Acids ◽

Fatty Acid Content ◽

Principal Component ◽

Omega 3 ◽

Age And Gender ◽

And Gender

AbstractThe main aim of the present study was to find differences in the content of fatty acids and variations in elemental composition in beef samples of longissimus dorsi muscle related to cattle age and gender. A further goal was to describe interrelations among the selected variables (descriptors) characterising the samples. For this purpose, an extensive data table was compiled, which contains chemical descriptors specifying forty-six beef samples originating from four well-known Austrian grassland-based beef labels. The following descriptors were investigated: (a) concentrations of 33 fatty acids, (b) concentrations of 19 elements, (c) contents of dry-mass, protein, intramuscular fat, and ash, (d) total content of saturated fatty acids (SFA), mono-unsaturated fatty acids (MUFA), and poly-unsaturated fatty acids (PUFA), (e) total contents of omega-3 (n-3) and omega-6 (n-6) PUFA and their ratio. The correlation analysis provided a number of statistically significant correlations among the descriptors, which were concordant with the results of the principal component analysis and cluster analysis. Furthermore, the effect of age and gender of cattle (both acting as target factors) on the fatty acid content and elemental composition of beef was examined by analysis of variance (ANOVA) and appropriate non-parametric tests. Several important interrelations among the beef characteristics investigated were also discovered. Finally, the most relevant beef descriptors were utilised in linear discrimination analysis (LDA) for predicting the slaughter age of the cattle for beef authentication.

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