Badanie stabilności oleju lnianego i oleju z czarnuszki

Introduction. Because of high concentration of monounsaturated and polyunsaturated fatty acids plant oils are increasingly popular ingredient of daily diet. Polyunsaturated fatty acids, which are not synthetized in the human body, are particularly important, because they are necessary for regular functioning of nervous and cardiovascular systems. Linseed oil and black cumin oil could be the source of these acids, but while consuming them it is worth knowing how conditions and time of storage influence their properties. Aim. Examination of changes of properties of linseed oil and black cumin oil depending on storage conditions. Material and methods. For both oils were four types of samples: collected right after opening, stored for a month in refrigerator, stored in 40°C and heated in microwave to 137°C. For each type of sample acid value, peroxide number were determined by titration, optical density (in 232 and 270 nm) and DPPH inhibition were measured spectrophotometrically. Results. Based on a results of analysis of changes in linseed oil an black cumin oil we observed the impact of high temperature on promotion of oxidation processes in linseed oil, while the black cumin oil was stable. Conclusions. Linseed oil requires low temperature of storage and can not be used after heating. Black cumin oil is more stable because of antioxidant compounds contained in essential oil.

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Correction: N-3 Polyunsaturated Fatty Acids (PUFAs) Reverse the Impact of Early-Life Stress on the Gut Microbiota

PLoS ONE ◽

10.1371/journal.pone.0142228 ◽

2015 ◽

Vol 10 (10) ◽

pp. e0142228 ◽

Cited By ~ 6

Author(s):

Matteo M. Pusceddu ◽

Sahar El Aidy ◽

Fiona Crispie ◽

Orla O’Sullivan ◽

Paul Cotter ◽

...

Keyword(s):

Fatty Acids ◽

Gut Microbiota ◽

Polyunsaturated Fatty Acids ◽

Life Stress ◽

Early Life ◽

Early Life Stress ◽

The Impact

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Effects of Dietary Addition of Linseed Oil on the Content of Polyunsaturated Fatty Acids in Egg Yolk of Gallus domestiaus

Journal of Biobased Materials and Bioenergy ◽

10.1166/jbmb.2021.2089 ◽

2021 ◽

Vol 15 (4) ◽

pp. 565-570

Author(s):

Suhu Duan ◽

Zaiqiang Li ◽

Zhenzhen Fan ◽

Mengran Qin ◽

Xiaoxue Yu ◽

...

Keyword(s):

Fatty Acids ◽

Gas Chromatography ◽

Polyunsaturated Fatty Acids ◽

Theoretical Basis ◽

Linseed Oil ◽

Egg Yolk ◽

Free Food ◽

Control Group ◽

Experimental Group ◽

Group 1

In order to study the effect of dietary supplement of linseed oil on polyunsaturated fatty acids (PUFAs) in egg yolk of Gallus domestiaus, total 160 healthy Gallus domestiaus of 26-week old were randomly selected and divided into 4 groups, each of which included 40 chickens fed outdoors with an area of 63 m2 and free food and drinking water. The control group (CK) was fed the basic diet, and the experimental group was added 1, 3 and 5% of linseed oil in the fundamentals of diet (experimental group 1, 2 and 3, abbreviated as P1, P2, P3), respectively. The content of PUFA and the value of n-6 PUFA and n-3 PUFA in egg yolk were determined by gas chromatography with 24 eggs randomly selected in each group after 10th, 25th and 40th days of the commence of the experiment. We found that the levels of α-linolenic acid (C18:3n3, ALA) and docosahexaenoic acid (C22:6n3, DHA) in egg yolk were clearly higher than the CK when 3% linseed oil or 5% linseed oil were added in the diet during the three experiment periods, in which the contents of linoleic Acid (18:2n6c, LA) and arachidonic acid (C20:4n6, ARA) in egg yolk differ little between P1, P2 and P3 and the CK while the value of n-6 PUFA and n-3 PUFA in egg yolk of the P2 and P3 groups decreased significantly. The comprehensive comparisons suggested that the content of C18:3n3 and C22:6n3 in egg yolk could be clearly increased in the P2 while the value of n-6 PUFA and n-3 PUFA decreased. This study provides theoretical basis for the production of functional eggs enriched with C22:6n3 and C18:3n3.

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Effect of mono and polyunsaturated fatty acids on muscle cholesterol level in fattening pigs

Biotechnology in Animal Husbandry ◽

10.2298/bah0502049p ◽

2005 ◽

Vol 21 (1-2) ◽

pp. 49-54 ◽

Cited By ~ 1

Author(s):

M. Pieszka ◽

T. Barowicz ◽

W. Migdalt ◽

Branislav Zivkovic

Keyword(s):

Fatty Acids ◽

Polyunsaturated Fatty Acids ◽

Total Cholesterol ◽

Cholesterol Level ◽

Linseed Oil ◽

Cholesterol Content ◽

Control Group ◽

Longissimus Muscle ◽

Fresh Tissue ◽

Fattening Pigs

The effect of supplementing fattening pigs with oils differing in MUFA (monounusaturated fatty acids) and PUFA (polyunsaturated fatty acids) level addition for fatteners diets on the cholesterol content of m. longissimus was investigated. In a feeding trial with 48 crossbred pigs [? ($ White Polish Large x S Polish Landrace) x <$ Pietrain] randomly assigned to four treatments groups of 12 animals each (6 gilts and 6 barrows), dietary supplements of 3% maize, sunflower or linseed oil in the experimental groups and of 3% lard in the control group were applied. Total cholesterol in the longissimus muscle of linseed oil supplemented pigs was found to decrease significantly (PO.01) compared to the lard-fed pigs (60.75 vs. 71.37 mg/100 g of fresh tissue). Similar tendencies for reduced cholesterol level in longissimus muscle of sunflower and maize oil supplemented pigs were also noted. The production of pork with reduced total cholesterol seems to be important in terms of consumer health and culinary value.

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Development of farmed fish: a nutritionally necessary alternative to meat

Proceedings of The Nutrition Society ◽

10.1017/s0029665199001366 ◽

1999 ◽

Vol 58 (2) ◽

pp. 377-383 ◽

Cited By ~ 173

Author(s):

J. R. Sargent ◽

A. G. J. Tacon

Keyword(s):

Fatty Acids ◽

Polyunsaturated Fatty Acids ◽

Fish Oil ◽

Marine Fish ◽

Vegetable Oils ◽

Linseed Oil ◽

Partial Replacement ◽

Farmed Fish ◽

Alternative Source ◽

Fish Feeds

The projected stagnation in the catch from global fisheries and the continuing expansion of aquaculture is considered against the background that fishmeal and fish oil are major feed stocks for farmed salmon and trout, and also for marine fish. The dietary requirement of these farmed fish for high-quality protein, rich in essential amino acids, can be met by sources other than fishmeal. However, the highly-polyunsaturated fatty acids eicosapentaenoic acid (20:5n-3) and docosahexaenoic acid (22:6n-3) present in high concentrations in fish oil are essential dietary constituents for marine fish and highly-desirable dietary constituents for salmonids. Currently, there is no feasible alternative source to fish oil for these nutrients in fish feeds. Vegetable oils rich in linoleic acid (18:2n-6) can partially substitute for 20:5n-3 and 22:6n-3 in salmonid and marinefish feeds. However, this is nutritionally undesirable for human nutrition because the healthpromoting effects of fish-derived 20:5n-3 and 22:6n-3 reflect a very high intake of 18:2n-6 relative to linolenic acid (18:3n-3) in Western diets. If partial replacement of fish oils in fish feeds with vegetable oils becomes necessary in future, it is argued that 18:3n-3-rich oils, such as linseed oil, are the oils of choice because they are much more acceptable lrom a human nutritional perspective, especially given the innate ability of freshwater fish, including salmonids, to convert dietary 18:3n-3 to 20:5n-3 and 22:6n-3. In the meantime, a more judicious use of increasinglyexpensive fish oil in aquaculture is recommended. High priorities in the future development of aquaculture are considered to be genetic improvement of farmed fish stocks with enhanced abilities to convert C18 to C20 and C22n-3 polyunsaturated fatty acids, enhanced development of primary production of 20:5n-3 and 22:6n-3 by single-cell marine organisms, and continuing development of new species.

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The Nutritional and Pharmacological Potential of New Australian Thraustochytrids Isolated from Mangrove Sediments

Marine Drugs ◽

10.3390/md18030151 ◽

2020 ◽

Vol 18 (3) ◽

pp. 151 ◽

Cited By ~ 1

Author(s):

Thi Linh Nham Tran ◽

Ana F. Miranda ◽

Adarsha Gupta ◽

Munish Puri ◽

Andrew S. Ball ◽

...

Keyword(s):

Fatty Acids ◽

Polyunsaturated Fatty Acids ◽

Extracellular Polysaccharide ◽

Buffer Zone ◽

Added Value ◽

Oil Bodies ◽

High Concentration ◽

Mangrove Sediments ◽

Aqueous Emulsion ◽

Total Fatty Acids

Mangrove sediments represent unique microbial ecosystems that act as a buffer zone, biogeochemically recycling marine waste into nutrient-rich depositions for marine and terrestrial species. Marine unicellular protists, thraustochytrids, colonizing mangrove sediments have received attention due to their ability to produce large amounts of long-chain ω3-polyunsaturated fatty acids. This paper represents a comprehensive study of two new thraustochytrids for their production of valuable biomolecules in biomass, de-oiled cakes, supernatants, extracellular polysaccharide matrixes, and recovered oil bodies. Extracted lipids (up to 40% of DW) rich in polyunsaturated fatty acids (up to 80% of total fatty acids) were mainly represented by docosahexaenoic acid (75% of polyunsaturated fatty acids). Cells also showed accumulation of squalene (up to 13 mg/g DW) and carotenoids (up to 72 µg/g DW represented by astaxanthin, canthaxanthin, echinenone, and β-carotene). Both strains showed a high concentration of protein in biomass (29% DW) and supernatants (2.7 g/L) as part of extracellular polysaccharide matrixes. Alkalinization of collected biomass represents a new and easy way to recover lipid-rich oil bodies in the form of an aqueous emulsion. The ability to produce added-value molecules makes thraustochytrids an important alternative to microalgae and plants dominating in the food, pharmacological, nutraceutical, and cosmetics industries.

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The development of a biologically active additive to reduce the blood cholesterol level

E3S Web of Conferences ◽

10.1051/e3sconf/202016101093 ◽

2020 ◽

Vol 161 ◽

pp. 01093

Author(s):

I.S. Khamagaeva ◽

N.A. Zambalova ◽

A.V. Tsyzhipova ◽

A.T. Bubeev

Keyword(s):

Fatty Acids ◽

Polyunsaturated Fatty Acids ◽

Linolenic Acid ◽

Nutrient Medium ◽

Linseed Oil ◽

Bifidobacterium Longum ◽

Biologically Active ◽

Blood Cholesterol ◽

Optimum Dose ◽

Technological Parameters

The relationship between the content of polyunsaturated fatty acids (PUFAs) of flaxseed oil and the cholesterol-metabolizing activity of various strains of bifidobacteria was studied. The optimum dose of linseed oil in a nutrient medium for the cultivation of bifidobacteria was selected to provide high cholesterol destruction compared to the control. Of all the studied strains of bifidobacteria, the most pronounced destructive activity against cholesterol is displayed by the strain Bifidobacterium longum DK-100, which, with the biomass growth in a nutrient medium of linseed oil destroys 74% of the total cholesterol. When studying the fatty acid composition of the biomass of bifidobacteria, the oleic acid was found to predominate among monounsaturated fatty acids, and the α-linolenic acid to prevail among polyunsaturated fatty acids, that amounted to 44-45%. A decrease in the content of linolenic acid during the cultivation of bifidobacteria was noted, which is probably due to their participation of bifidobacteria in the metabolism. As a result of the studies, the optimum conditions for the cultivation of bifidobacteria were selected and the technological parameters of producing dietary supplements were justified.

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Impact of enriching larval brine shrimp (Artemia sp.) with a supplement containing polyunsaturated fatty acids on their growth and mortality

Archives of Polish Fisheries ◽

10.1515/aopf-2015-0017 ◽

2015 ◽

Vol 23 (3) ◽

pp. 149-154 ◽

Cited By ~ 1

Author(s):

Maja Prusińska ◽

Olga Kushniry ◽

Oleksii Khudyi ◽

Lidiia Khuda ◽

Ryszard Kolman

Keyword(s):

Fatty Acids ◽

Single Dose ◽

Polyunsaturated Fatty Acids ◽

Proximate Composition ◽

Brine Shrimp ◽

Control Group ◽

Time Intervals ◽

Fish Food ◽

Low Level ◽

The Impact

Abstract The aim of the study was to determine the impact the commercial supplement S.presso (INVE Aquaculture, Belgium), a source of polyunsaturated fatty acids to enrich the proximate composition of brine shrimp (Artemia sp.), had on their growth and mortality. Four different enrichment protocols were investigated: the supplement was given in one or two doses at various time intervals. The results indicate that while S.presso increased nauplius mortality slightly, administering the appropriate dose reduced losses to a very low level (from 12.5% with a single dose to 8.6% with the recommended dose divided into to equal parts). Additionally, it was confirmed that the supplement S.presso increased brine shrimp growth slightly in comparison to that of the control group, but the differences were statistically insignificant. The results permit concluding that S.presso is suitable for use as a source of polyunsaturated fatty acids for brine shrimp enrichment with the intent of using them as fish food.

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