Acid Composition Of Seed Oil Research Articles

Fatty acid composition of oilseeds of <i>Guizotia abyssinica,</i> Medeya cultivar

The Penza Institute of Agriculture has created Medeya cultivar of Guizotia abyssinica , which has been included in the State Register of Breeding Achievements since 2019 and is recommended in all regions for cultivation. The cultivar has ecological plasticity, is characterized by resistance to drought and high temperatures, as well as high responsiveness to additional moisture. It differs in stable seed productivity and high fat content. The aim of the research is a comparative assessment of the fatty acid composition of oil seeds of Guizotia abyssinica grown in contrasting agroclimatic regions. The object of study was the seeds of G. abyssinica grown in different soil and climatic conditions of the Penza, Astrakhan, Tambov and Volgograd regions. The article presents the results of changes in the content of oil and fatty acids, depending on weather, soil and geographical conditions of growth of the culture. The fat content in the seeds of G. abyssinica varied from 33.3-39.2%, depending on agro-climatic conditions. The rich chernozem soils of the Penza and Tambov regions have a fat content of 36.7 to 39.2%, respectively. In the Volgograd region on chestnut soils, the oil content of the seeds of G. abyssinica was 33.3-35.7 %. The main component of the fatty acid composition of the oil of G. abyssinica is polyunsaturated fatty acid - linoleic, the content of which reaches a high value of 79.17%. The content of oleic acid is low and is 5.26%, and linolenic 1.21%. There is no erucic acid in the seeds. The maximum content of linoleic acid (77.5-80.0%) is noted in oilseeds grown on the black soil of Penza and Tambov. The content of linoleic acid was highest in the optimally wetted conditions of 2016 (GTK 1.1) - 79.17%. In arid conditions, with GTK 0.3, the concentration of this acid significantly decreased to 74.36%. The content of palmitic and stearic acids in GTK 1.1 was 7.82 and 5.80 %, in GTK 0.8, their values reached 7.96 and 5.93 %, and in GTK 0.3 - 8.22 and 7, 91%, respectively. Hotter and drier conditions during the vegetation period of hydration contribute to an increase in saturated acids and a decrease in linoleic acid.

Fatty Acid Composition of Seed Oil from Pachira aquatica Grown in Nigeria

The relative composition of the fatty acids in Pachira aquatica seed oil were determined using GC-MS and 1H NMR. The results obtained from GC-MS and 1H NMR show that the oil contained saturated fatty acids (>67%), oleic acid (>18%), linoleic (>3%) and linolenic acid (≤0.01%). 1H NMR gave more reliable and reproducible results.

Synthesis of fatty phenylthiosemicarbazide from underutilized Sesamum indicum seed oil: a promising corrosion inhibitor of carbon steel in developing country

Fatty phenylthiosemicarbazide (FP) was synthesized from Sesamum indicum seed oil (SO) via simple reaction mechanism, which was characterized using Fourier transform infrared and proton nuclear magnetic resonance (1HNMR). Fatty acid composition of SO was examined using gas chromatography (GC) coupled with flame ionization detector while FP was evaluated for its ability to inhibit corrosion in carbon steel using weight loss method. Quantum chemical computation using density functional theory was applied to gain theoretical insight on the inhibition capacity of FP. The result of the GC revealed the most dominant fatty acid in SO to be C18:2 (43.77%) while the least was C16:1 (0.10%). FP exhibited a corrosion inhibition efficiency of 62.55% at room temperature but increased to 99.57% at 303 K, which obeyed Langmuir isotherm. The $$\Delta G_{ads}^{^\circ }$$ value revealed the process to be spontaneous while both $$\Delta H_{ads}^{^\circ }$$ (− 1.088 kJ mol−1) and $$\Delta S^{^\circ }$$ (− 0.015 kJ mol−1 K−1) suggested an exothermic process. The lowest unoccupied molecular orbital and highest occupied molecular orbital were distributed over the molecule of FP with an activation energy of 25.606 kJ mol−1. The current study presents FP as a promising corrosion inhibitor, which can replace synthetic compounds from petrochemicals used as corrosion inhibitors in developing countries.

Fatty Acid Composition of Seed Oils in Some Sand Dune Vegetation Species from Turkey

Six species from sand dunes of northwest Turkey were investigated for their total seed oil lipid and fatty acid (FA) profiles. The total oil content ranged from 4.26 to 33.64% (Plantago scabra and Glaucium flavum, respectively). The major FAs were linoleic, oleic, palmitic, and stearic acids (20.78–60.69%, 14.73–56.64, 5.42–15.13, and 1.65–3.67%, respectively). Considerable amounts of γ-linolenic acid were found in Plantago scabra and Cionura erecta (13.13 and 1.37%, respectively). The unsaturated FA content ranged from 83.09% in Cardaria draba to 87.80% in Eryngium maritimum. Significant correlations between FA concentrations in these species were evaluated. These species, as alternative sources of unsaturated FAs, should be evaluated as novel salt-tolerant crops and used for improving salt tolerance of existing oilseed crops.

Fatty Acid Composition of Seed Oil from Salvia coccinea Grown in Cuba

Studies on the distribution of fatty acids of seed oils have been mainly driven by pharmacological and taxonomic interests. The Salvia coccinea L. specie, known as banderilla, is cultivated in Cuba as ornamental plant. Nevertheless, some traditional medical uses have been reported in other countries without reports of pharmacological studies. On the other hand, there is no any report on the fatty acid composition of seed oil of this specie. Fatty acids from the seed oil of this specie growing in Cuba were extracted with hexane and were analyzed by GC and GC-MS as methyl ester derivatives after a transmethylation reaction. The main fatty acids found were linolenic acid (18:3; 33.1 %), linoleic acid (18:2; 25.2 %), oleic acid (18:1; 13.3 %), and stearic acid (18:0; 12.5 %), while other fatty acids were found in minor proportions. This is the first report about the seed oil of this specie, which is a contribution to its chemical composition.

Lipid Content and Fatty Acid Composition of Seed Oils from Six Pomegranate Cultivars

The fatty acid composition of the seed oils of six pomegranate (Punica granatum L.) cultivars was qualitatively and quantitatively determined by gas chromatography. The seeds contained oil in the range of 51–152 mg kg-dry matter. Inter-cultivar differences in fatty acid composition were demonstrated [fatty acid esters as % (w/w) total fatty acid esters]. Sour cultivars had the highest oil content, while sour-sweet cultivars had the lowest oil content. Eleven fatty acids were identified. In all cultivars the predominant fatty acids were linoleic (25.2–38.6%) and oleic acid (24.8–35.5%) followed by palmitic (18.2–22.6%), stearic (6.9–10.4%), and linolenic acid (0.6–9.9%). To a lesser extent, arachidic (1.1–3.4%) and palmitoleic acid (0.2–2.7%) were also found in all cultivars. Lauric, myristic, behenic, and lignoceric acids were rarely detected. As far as we know, linolenic (18:3), arachidic (20:0), behenic (22:0), or lignoceric (24:0) acids have not been previously reported in the seed oils of edible pomegranate cultivars. Lignoceric acid has not previously been found in pomegranate seed oil.

Exploration of Vernonia galamensis in Ethiopia, and Variation in Fatty Acid Composition of Seed Oil

Vernonia galamensis is a new potential industrial crop with very high content of vernolic acid in the seed oil. The species is known to naturally grow as a weed in fields or in woodlands under a wide range of agroecological conditions of Africa. In order to study the existing variability in Ethiopia, germplasm collection was carried out. Vernonia grows wild in various ecosystems. Ten regions were explored from North, South, East, Southeast, Southwest and Central Ethiopia. A diverse range of habitats having different altitudes and ecological conditions was explored. Altitude of collecting sites varied between 1250 and 2050 m, and soil pH from 5.1 to 8.5. The most common soil type was sandy loam, and the organic matter content varied from 0.2% to 12.9%. At 80 sites, about 480 accessions were collected including different maturity time, plant type, flower color, and branching patterns as well as fatty acid composition. The mean vernolic acid content of the seed oil of the accessions was 74%, and ranged from 34% to 87%. A wide variability in composition of other fatty acids was observed. It was not possible to find Vernonia in some locations that were earlier indicated by herbarium specimens collected since 1840. This could be a sign of change in land use system and environmental degradation and, hence, loss of genetic resources of the species.

Fatty Acid Compositions of Seed Oils of Three Turkish Salvia Species and Biological Activities

The fatty acid composition of seed extracts of Salvia bracteata, S. aethiopis, and S. candidissima ssp. candidissima were analyzed by GC/MS. The main compound of S. bracteata, S. aethiopis, and S. candidissima ssp. candissima was found to be 9,12-octadecenoic acid at 64.3%, 73.4%, and 20.8%, respectively. The seed extracts of S. bracteata showed activity against S. aureus E. coli, M. smegmatis, and C. albicans with MIC values of 1.1, 0.5, 1.1, and 1.1 mg/mL, respectively, while the seeds extract of S. aethiopis showed activity against the same microorganisms with MIC values of 2.2, 2.2, 1.1, and 1.1 mg/mL, respectively. However, the seed extract of S. candidissima ssp. candidissima showed activity only against M. smegmatis with a MIC value of 0.25 mg/mL.

Fatty Acid Composition of Seed Oils of Twelve Salvia Species Growing in Turkey

Seed oils of 12 Salvia species collected from different regions in Turkey (S. Albimaculata Hedge & Hub.-Mor., S. Candidisima Vahl., S. Cedronella Boiss., S. Cryptantha Montbret & Aucher ex Bentham, S. Forskahlei L., S. Fruticosa Miller (Sin. S. Triloba L. Fil), S. Halophila Hedge, S. Hypargeia Fisch. & Mey., S. Sclarea L., S. Tomentosa Miller, S. Tchihatcheffii (Fisch. & Mey.) Boiss., S. Virgata Jacq.) were obtained by Soxhlet apparatus using hexane. The oil yields were found to be between 2.0% and 20.9%. Fatty acids in the oils were converted to methyl esters and determined by GC/MS in methyl ester form. The main fatty acid components of S. halophila, S. Hypargeia, and S. Sclarea are unsaturated oleic, linoleic, and linolenic acids. In others except S. Candidissima, the dominant acids are oleic, linoleic and palmitic acids.

Registration of Soybean Germplasm Lines with Modified Fatty Acid Composition of Seed Oil

Registration of Soybean Germplasm Lines with Modified Fatty Acid Composition of Seed Oil

Fatty Acid Composition of Seed Oil of Wild Species of Linum1

AbstractFatty acid composition of seed oil of 34 wild species of flax was determined. The same fatty acids were present in these species as in cultivated flax. Variability in their relative proportions, however, was greater among wild species than among 266 lines of cultivated flax analyzed. In general wild species had a high linolenic acid content. A few species, however, had high linoleic and low linolenic acid content.