Temat: Linoleic acid - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: The effect of oleic and linoleic acid addition to the culture media on bovine embryonic development following vitrification
Autorzy:: Karaşahin, T.
Tematy:: embryo
linoleic acid
oleic acid
vitrification; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2087426.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The process of isomerisation of plant oils rich in linoleic acid aimed at obtaining linoleic acid isomers (CLA)
Proces izomeryzacji olejów roślinnych bogatych w kwas linolowy w celu otrzymania izomerów kwasu linolowego (CLA)
Autorzy:: Walisiewicz-Niedbalska, W.
Patkowska-Sokola, B.
Lipkowski, A.W.
Rozycki, K.
Bodkowski, R.
Gwardiak, H.
Janczak, M.
Tematy:: plant oil
linoleic acid
linoleic acid isomer
isomerization
poppy
seed
sunflower
grape
isomerization degree; Pokaż więcej
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Powiązania:: https://bibliotekanauki.pl/articles/832676.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Testing of lubricating properties of mixtures of diesel and RME biofuels with the addition of linoleic acid
Autorzy:: Gardyński, Leszek
Kałdonek, Jolanta
Caban, Jacek
Tematy:: biodiesel
lubricity
linoleic acid
wear testing; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Powiązania:: https://bibliotekanauki.pl/articles/263062.pdf Link otwiera się w nowym oknie
Opis:: In connection with the limited resources of fossil fuels and the reduction of emissions and stimulation of agricultural areas, a very important indication is the search for alternative fuels – biofuels. The article presents the results of testing the lubricating properties of selected fuel mixtures. The lubricity of diesel fuel (DF), DF with 7% content of methyl esters of rapeseed oil fatty acids (RME), technical linoleic acid and DF with 7% content of RME and 10% content of technical linoleic acid was tested. The research was carried out on the author's research stand in the amount of 20 dm3 of mixture. Four parameters were taken into account: mass loss of samples, the footprint area of cooperation, diameter of equivalent wheel and average value of the coefficient of friction. It has been shown that the addition of linoleic acid to diesel fuel containing RME causes a significant increase in the mass loss of the samples and the footprint area of cooperation as well as its diameter of equivalent wheel, during lubrication with such a mixture. As a result of the addition of linoleic acid, no positive results were obtained, as the lubricating properties in this case deteriorated. Therefore, it is justified to continue looking for fuel additives that will eliminate this negative effect.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Possibility of Using Golden Shower (Cassia Fistula) and Poinciana (Delonix regia) Seeds Oil as Non-Conventional Feedstocks for the Production of Biodiesel in Egypt
Autorzy:: Algharib, Ahmed Mohamed
Abd El Hakim, Ahmed Fawzy
El-Khamissi, Haitham Ahmed
El-Hamamsy, Sam Mohamed
Tematy:: biodiesel
Cassia fistula
Delonix regia
linoleic acid; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/2027852.pdf Link otwiera się w nowym oknie
Opis:: The tree pods and seeds of Cassia fistula (CF) and Delonix regia (DR) were collected from the Faculty of Agriculture garden at Al-Azhar University in Cairo, Egypt, during the spring season of 2019. The physical and chemical aspects of pods and seeds were examined. The percentage of oil and fatty acid compositions were then investigated. The pod weights ranged from 61.34 g in DR to 89.29 g in CF, with pod lengths ranged from 42.26 cm (DR) to 62.64 cm (CF). InCassia fistula, the seed weight per pod, the number of seeds per pod, and the weight of 100 seeds per pod were 12.29 g, 84, and 17.22 g, respectively; whereas in Delonix regia, they were 11.31 g, 23.5, and 34.25 g. The C. fistula had high levels of chlorophyll a and b, as well as total chlorophyll (1.016, 1.025, and 2.041 mg $g^{-1}$ DW), while D. regia recorded the lowest levels (0.513, 0.228, 0.741 mg $g^{-1}$ DW). The results also showed that the C. fistula leaves were also heavier than the D. regia leaves, weighing 14.96 g and 5.02 g fresh and dry weight for C. fistula and 10.06 g and 3.87 g fresh and dry weight for D. regia, respectively. The seeds of both plants were chemically tested, with percentages of Lipid, Moisture, Protein, Ash, Fibers, and Total Carbohydrates of 2.11, 10.79, 17.10, 4.95, 5.51, and 59.53 percent for Cassia fistula and 2.13, 6.52, 18.75, 0.37, 13.28, and 58.95 percent for Delonix regia, respectively. Eleven fatty acids were found in both plants seeds oil (lauric, myristic, palmitic, palmitoleic, stearic, oleic, eliadic, linoleic, linolenic, gondoic, and behenic acid). A slight variation was noted in linoleic acid, which was the major component of both oils ranging from 52.17 (CF) to 54.77% (DR). The prediction of the iodine values resulted in 97.6 and 98.8 for Cassia fistula and Delonix regia, respectively, which is a promising model for the production of biodiesel in the future.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Physico-chemical properties and fatty acid composition of Lagneraria siceraria seed oil
Autorzy:: Magu, T. O.
Sunday, E. A.
Louis, H.
Upla, P. U.
Ukpanah, M. A.
Nyong, B. E.
Tematy:: Cucurbitaceae
Lagenaria siceraria
Linoleic acid
fatty acid
seed oil; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1118076.pdf Link otwiera się w nowym oknie
Opis:: Oil was extracted from the dehulled seeds of Lagneraria siceraria (bottle gourd) and analysed for physico-chemical properties, as well a fatty acid composition. Standard procedures were employed in all analysis. The seed oil was liquid at room temperature with percentage yield (23.65%). The oil was characterized in terms of specific gravity (0.918 g/cm3), refractive index (1.34), viscosity (26.46 X 103 poise), melting point (11-14.5 °C), moisture content (0.18%), saponification value (203.36 mg KOH/g), unsaponifiable matter (7.13%), iodine value (46.1 g/100g), peroxide value (7.5 meq/kg), free fatty acid value (18.42%), acid value (60.02 mg KOH/g) and ester value (143.34 mg KOH/g). It was also classified as non- drying (iodine value ˂115 g/100 g). The peroxide value indicates that the oil is less prone to rancidity with iodine value less than 30meq/kg. The high saponification value qualifies it for use in the manufacture of soaps and shampoos. Four classes of fatty acid were identified in the oil: palmitic acid (C16:1) (13.5 ± 0.21), stearic acid (C18:1) (6.5 ± 0.96), oleic acid (C18:1) (11.6 ± 0.62) and linoleic acid (C18:2) (68.4 ± 0.13). Linoleic acid was the most abundant fatty acid in the oil. The fatty acid content of the oil reveals that L. Siceraria seed oil could be a rich source of oil for domestic and industrial purposes if exploited.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Carotenoid accumulation in Dietzia maris NITD protects from macromolecular damage
Autorzy:: Bera, S.
Tematy:: canthaxanthin
ROS
protein oxidation
nutraceutical
linoleic acid; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2097097.pdf Link otwiera się w nowym oknie
Opis:: Over the past decades, nutraceuticals have attracted considerable interest because of their potential nutritional, safety and therapeutic effects. Carotenoid molecules are potent nutraceuticals with an attractive colour and have been shown to play crucial roles in the immune system and susceptibility of organisms to certain diseases. Reactive oxygen species (ROS) are considered to be a major threat to cellular components and lead to protein oxidation, lipid peroxidation and DNA damage. In the present study, canthaxanthin (CX), an orange-red keto-carotenoid, was extracted from Dietzia maris NITD. Carbonyl content measurement showed that the presence of CX can prevent protein oxidation in D. maris NITD. The inhibition of protein oxidation in vitro revealed a high correlation coefficient of the extracted CX with positive controls. Both the linoleic acid model (IC50 = 932.48 μg/ml) and the goat liver model experiments showed that CX can also inhibit lipid peroxidation in vitro. CX from D. maris NITD was also proved to be effective in maintaining the observable intactness of a model DNA (pBR322). The present study indicated that bacterial CX can be a useful bioactive compound to prevent oxidative damage incurred by cellular macromolecules in terms of pharmaceutical and nutraceutical aspects.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: A novel Δ12-fatty acid desaturase gene from methylotrophic yeast Pichia pastoris GS115
Autorzy:: Wei, D
Li, M
Zhang, X
Zhou, H
Xing, L
Tematy:: fatty acid desaturase gene
Pichia pastoris
Saccharomyces cerevisiae
linoleic acid; Pokaż więcej
Wydawca:: Polskie Towarzystwo Biochemiczne
Powiązania:: https://bibliotekanauki.pl/articles/1041169.pdf Link otwiera się w nowym oknie
Opis:: The methylotrophic yeast Pichia pastoris GS115, a widely used strain in production of various heterologous proteins, especially membrane-bound enzymes, can also produce linoleic and linolenic acids, which indicates the existence of membrane-bound Δ12 and Δ15-fatty acid desaturases. This paper describes the cloning and functional characterization of a novel Δ12-fatty acid desaturase gene from this methylotrophic yeast. The open reading frame of the gene (named Pp-FAD12) is 1263 bp in size and encodes a 420-amino-acid peptide. The deduced Pp-FAD12 protein shows high identity (50-67%) with Δ12-fatty acid desaturases from other fungi. It also shows a high identity (57%) with Δ15-fatty acid desaturase (named Sk-FAD15) from Saccharomyces kluyveri. Expression of Pp-FAD12 in polyunsaturated fatty acids non-producing yeast Saccharomyces cerevisiae demonstrated that its product converted oleic acid (18 : 1) to linoleic acid (18 : 2). This result suggests that Pp-FAD12 encodes a novel Δ12-fatty acid desaturase in P. pastoris GS115. This is the first report about the cloning and functional characterization of Δ12-fatty acid desaturase gene in methylotrophic yeast.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Pyrite oxidation inhibition by hydrophobic films for acid mine drainage control at the source
Autorzy:: Wang, Shuncai
Zhao, Yue
Li, Shuang
Tematy:: hydrophobic film
pyrite
suppression
linoleic acid
acid mine drainage; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/110200.pdf Link otwiera się w nowym oknie
Opis:: Acid mine drainage (AMD), which is also known as acid rock drainage (ARD), can cause serious environmental pollution, especially for surrounding aquatic and terrestrial ecosystems due toits low pH, high metal and sulfate concentration. Acid mine drainage is an urgent environmental problem for the worldwide ore mining industry. In this paper, we demonstrated that hydrophobic films can inhibit the oxidation of pyrite-bearing tailings to achieve the control of at-source AMD. The results of chemical leaching testing showed that the hydrophobic films formed by linoleic acid can suppress the oxidation of pyrite-bearing tailings and reduce the AMD production. In addition, the presence of hydrophobic films of linoleic acid on the surface of pyrite-bearing tailings was confirmed by the results from Fourier transform infrared (FTIR) analyses and scanning electron microscopy with energy dispersive spectrometry (SEM / EDS).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Autorzy:: Ptak, Anna
Flis, Z.
Czauderna, M.
Molik, E.
Szatkowski, P.
Opis:: Melanoma, an aggressive form of skin cancer, poses a significant public health problem due to its rising global incidence. Therefore, there is a growing interest among patients in natural substances with potential therapeutic benefits. Sheep’s milk, rich in bioactive substances such as conjugated linoleic acid (CLA), lactoferrin, and orotic acid, represents a promising candidate for adjunctive cancer therapy due to its unique biological properties. This review consolidates current knowledge on the health-promoting effects of selected bioactive substances from sheep’s milk in the context of skin cancer supportive care. In vitro, in vivo and clinical studies have demonstrated that CLA isomers have anticancer activity, suppressing malignant melanoma development and progression. Lactoferrin is widely utilised in the cosmetic and pharmaceutical industries due to its antibacterial and skin repairing properties. Meanwhile, orotic acid shows potential as a breakthrough compound in skin cancer prevention and treatment through its combined anticancer and dermatoprotective effects. Considering the great anticancer potential of sheep’s milk, further research is essential to fully elucidate their mechanisms and clinical applications.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 10.

Tytuł:: Efficiency evaluation of the bottom ash flotation collector by removed saturated fatty acids from soybean oil
Autorzy:: Kim, Minsik
Park, Jongmyung
Kang, Heonchan
Jeong, Dohyun
Tematy:: bottom ash
flotation
unburned carbon
unsaturated fatty acid
linoleic acid; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/2146855.pdf Link otwiera się w nowym oknie
Opis:: Unburned carbon flotation is performed to investigate the separation efficiency of the collector containing poly unsaturated fatty acid on the bottom ash. The results of an experiment using soybean oil collector (S.O. collector) show the high recovery and enrichment ratio at the dosage of 9 kg/ton. In order to investigate the collector efficiency on poly unsaturated fatty acids, a collector is manufactured using the esterification reaction. Unsaturated fatty acid oil collector (U.F.O. collector) is manufactured in which removed saturated fatty acids and increased content of poly unsaturated fatty acid from the S.O. collector. The U.F.O. collector is showed high separation efficiency at 7 kg/ton. The U.F.O. collector concentrates the unburned carbon content of the concentrate and improves the recovery with a low dosage than the S.O. collector. By removing saturated fatty acids and increasing the content of unsaturated fatty acids, this investigation provides that 1) the dosage of a collector can be reduced up to 2 kg/ton difference, and 2) the poly unsaturated fatty acids shows the best performance for adsorption properties on the unburned carbon surface.
Dostawca treści:: Biblioteka Nauki

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