scholarly journals Tilia sp. Seed Oil—Composition, Antioxidant Activity and Potential Use

2021 ◽  
Vol 11 (11) ◽  
pp. 4932
Author(s):  
Nina Poljšak ◽  
Nina Kočevar Glavač
Keyword(s):  
Fatty Acids ◽  
Antioxidant Activity ◽  
Seed Oil ◽  
Dietary Fatty Acids ◽  
Oil Composition ◽  
Tilia Platyphyllos ◽  
Dpph Method ◽  
Omega 6 ◽  
Cyclopropene Fatty Acids ◽  
Potential Use

Research on new, untapped seed oil sources is receiving increased attention. In this study, 18 different seed samples of Tilia cordata and Tilia platyphyllos from various locations in Slovenia were collected and oil was extracted. The compositions of triglyceride fatty acids and unsaponifiable compounds were determined using GC-MS, while antioxidant activity was evaluated using the DPPH method. The oil content in the seeds varied significantly, from 9.1% to 21.7%. Linoleic acid (50–60%) was found to be the predominant fatty acid, followed by oleic acid (18–22%) and palmitic acid (8–9%). Characteristic cyclopropene fatty acids (sterculic, dihydrosterculic and malvalic acids) were present in the average range of 4–8.4%. Antioxidant activity ranged from 8.9% to 65.5%, and was higher, on average, for T. platyphyllos. Higher antioxidant activity was closely correlated with higher γ-tocopherol contents. Statistically significant correlations were confirmed between antioxidant activity and γ-tocopherol, between Δ-tocopherol and phytol, between stigmasterol and β-sitosterol and between squalene and malvalic acid. Tilia oil may be of great interest for cosmetic and dermal preparations. It is, however, not considered a good source of dietary fatty acids due to the undesired, significant content of omega-6 fatty acids.

scholarly journals Association of Whole Blood Fatty Acids and Growth in Southern Ghanaian Children 2–6 Years of Age

Nutrients ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 954 ◽  
Author(s):  
Mary Adjepong ◽  
William Yakah ◽  
William Harris ◽  
Esi Colecraft ◽  
Grace Marquis ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Growth Parameters ◽  
Dietary Fatty Acids ◽  
Northern Ghana ◽  
Z Score ◽  
Omega 3 ◽  
Omega 6 ◽  
Z Scores ◽  
Height For Age ◽  
Weight For Age

In Ghana, stunting rates in children below 5 years of age vary regionally. Dietary fatty acids (FAs) are crucial for linear growth. The objective of this study was to determine the association between blood FAs and growth parameters in southern Ghanaian children 2–6 years of age. A drop of blood was collected on an antioxidant treated card and analyzed for FA composition. Weight and height were measured and z-scores calculated. Relationships between FAs and growth were analyzed by linear regressions and factor analysis. Of the 209 subjects, 22% were stunted and 10.6% were essential FA deficient (triene/tetraene ratio > 0.02). Essential FA did not differ between stunted and non-stunted children and was not associated with height-for-age z-score or weight-for-age z-score. Similarly, no relationships between other blood fatty acids and growth parameters were observed in this population. However, when blood fatty acid levels in these children were compared to previously reported values from northern Ghana, the analysis showed that blood omega-3 FA levels were significantly higher and omega-6 FA levels lower in the southern Ghanaian children (p < 0.001). Fish and seafood consumption in this southern cohort was high and could account for the lower stunting rates observed in these children compared to other regions.

scholarly journals Effect of Gold Sea Cucumber (Stichopus hermanni) Extract Concentration on Antioxidant Activity of Grape Seed Oil (Vitis vinifera) nanoemulsion

2018 ◽  
Vol 16 (1) ◽  
pp. 36 ◽  
Author(s):  
Siti Umroh Noor ◽  
Amelia Gozali
Keyword(s):  
Antioxidant Activity ◽  
Sea Cucumber ◽  
Seed Oil ◽  
Grape Seed ◽  
Omega 3 ◽  
Extract Concentration ◽  
Globule Size ◽  
Grape Seed Oil ◽  
Dpph Method ◽  
Antioxidant Agent

Gold sea cucumber extract (Stichopus hermanni) is rich in collagen and unsatturated fatty acid also known omega 3 such as docosahexaenoic acid and eicosapentaenoic acid that highly effective as an antioxidant. Oligomeric proanthocyanidin is the main content in grape seed oil and the most powerful antioxidant agent that can protect collagen. The aim of research was to determine the effect of gold sea cucumber extract concetration on antioxidant activity of grape seed oil nanoemulsion. The three formulas with results test of antioxidant activity with DPPH method using 15% Brij CS12® and 30% propylene glycol has done which the oil phase was dispersed in the aqueous phase.Variation that have been done is to use the antioxidant activity (IC50) of gold sea cucumber extract  for 2, 4, and 6 times. The resulting preparations was conformed of organoleptic, nanoemulsion type, clarity, globule size, viscosity and rheology, pH and freez thaw test. Antioxidant activity of gold sea cucumber extract and grape seed oil were  (IC50= 53.79 and 17.41 μg/mL respectively). The nanoemulsion was analysed using two-way ANOVA method. Antioxidant  activity at storage for 0; 2 and 4-weeks of formula I, II, III were (IC50=  49.15; 49.45, 51.15 µg/mL), (IC50= 44.12, 47.48, 48.14 µg/mL), and (IC50= 42.14, 43.45, 45.33 µg/mL) respectively. Can be concluded that the higher concentration of gold sea cucumber extract, the antioxidant activity of nanoemulsion is higher, but it decreased during the storage.

scholarly journals Nutrients, fatty acid composition and antioxidant activity of the flowers and seed oils in wild populations of Paeonia ludlowii

2019 ◽  
pp. 206
Author(s):  
Jie Li, Zai-Hua Wang
Keyword(s):  
Fatty Acids ◽  
Antioxidant Activity ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Seed Oil ◽  
Unsaturated Fatty Acids ◽  
Seed Oils ◽  
Wild Populations ◽  
The Impact

Wild Paeonia ludlowii is considered as a traditional ornamental plant, but its flowers and seed oils are edible with important economic values, and the variation of nutrients, fatty acid composition in wild populations is scarcely known. Flowers and seeds of P. ludlowii were collected from two wild populations for evaluating the nutrients in flowers, composition of fatty acids in seed oils and the antioxidant activity. The flowers contained high composition of proteins, carbohydrates, amino acids, total flavonoids, phenolic compounds and essential minerals. Seed oil yield reached up to 21.95% using supercritical CO2 fluid extraction, and it contained 14 fatty acids (up to 93.35 g/100g seed oil), especially the unsaturated fatty acids (oleic acid, linoleic acid and α-linolenic acid) was up to 88.69% with low ω6/ω3 ratios of 0.58. The antioxidant capacity can be arranged in the order of trolox > flower extracts > seed oil according to the DPPH and ABTS free radical assay. Contents of nutrient in flowers and fatty acids in seed oils were significantly different between two wild populations due to the impact of different growing environments. These results indicate that flowers and seed oils of P. ludlowii are potential food resources in human diets.

scholarly journals Chemical Composition and Antioxidant Activity of Seed oil of Two Algerian Date Palm Cultivars (Phoenix dactylifera)

2014 ◽  
Vol 9 (12) ◽  
pp. 1934578X1400901 ◽  
Author(s):  
Mustapha Boukouada ◽  
Zineb Ghiaba ◽  
Nadhir Gourine ◽  
Isabelle Bombarda ◽  
Mokhtar Saidi ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Antioxidant Activity ◽  
Date Palm ◽  
Seed Oil ◽  
Phoenix Dactylifera ◽  
Seed Oils ◽  
Bleaching Effect ◽  
Date Seed ◽  
Phoenix Dactylifera L ◽  
Eastern Algeria

The fatty acid composition of date seed oil from two different date palm ( Phoenix dactylifera L.) cultivars, locally known as Degla-Baïdha and Tafezouine, were investigated. GC analysis revealed the presence of five dominant fatty acids: oleic C18:1 (46.51; 39.15%), lauric C12:0 (22.1; 28.5%), myristic C14:0 (10.7; 11.4%), palmitic C16:0 (9.6; 8.7%) and linoleic C18:2 (6.9; 6.1%). The oils was characterised by a low content of tocopherols (0.53; 1.41 μg/g). The antioxidant activity of the oils was investigated using the DPPH•(1,1-di-phenyl-2-picryl-hydrazyl) scavenging assay. The oils had a weak bleaching effect on DPPH• free radicals. This study showed that the qualities of the tested oils are highly comparable with those of some commercial seed oils of other plants. Furthermore, a statistical analysis using the hierarchy ascendant classification method was conducted in order to highlight the similarities and/or the differences regarding the contents of the main fatty acids found in some common plants and in the five most famous cultivars of Phoenix dactylifera of south eastern Algeria (Tafezouine, Degla-Baïdha, Deglet-Nour, Ghars, Tamdjouhert).

The Fatty Acids Composition and Antioxidant Activity of Walnut Cold Press Oil

2017 ◽  
Vol 68 (3) ◽  
pp. 507-509 ◽  
Author(s):  
Dana Copolovici ◽  
Simona Bungau ◽  
Rica Boscencu ◽  
Delia Mirela Tit ◽  
Lucian Copolovici
Keyword(s):  
Fatty Acids ◽  
Antioxidant Activity ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Fatty Acids Composition ◽  
Omega 3 ◽  
Walnut Oil ◽  
Cold Press ◽  
Omega 6 ◽  
Very High

The fatty acids composition and antioxidant activity have been determinate for cold press walnut oil. It has been found that the total saturated fatty acids have been 8.8 % while poly unsaturated fatty acids have been 72.84 %. The ratio between omega-6 and omega-3 has been determined as 5.06 which could help in human healthy diet. On the same side, the antioxidant activity of the oil is very high at a level of 3.65 mmol L-1 and a ratio between lipophilic and hydrophilic fractions of 9.45.

Dietary fats and torpor patterns in hibernating ground squirrels

1993 ◽  
Vol 71 (6) ◽  
pp. 1182-1185 ◽  
Author(s):  
Fritz Geiser ◽  
G. J. Kenagy
Keyword(s):  
Fatty Acids ◽  
Sunflower Oil ◽  
Seed Oil ◽  
Control Diet ◽  
Saturated Fatty Acids ◽  
Ground Squirrels ◽  
Dietary Fatty Acids ◽  
Dietary Fats ◽  
Body Lipid ◽  
Physiological Variables

The effect of a sunflower oil diet (rodent chow with 10% addition by weight of sunflower seed oil, rich in linoleic acid), a sheep fat diet (rodent chow with 10% addition by weight of sheep fat, rich in saturated fatty acids and oleic acid), and a control diet (rodent chow without added fat or oil) on the pattern of torpor was investigated in the ground squirrel Spermophilus saturatus, a relatively large (250 g) hibernator. Torpid S. saturatus on the sunflower oil diet showed a lower minimum body temperature (2.1 vs. 3.5 °C), a lower metabolic rate (0.029 vs. 0.043 mL O2/g∙h)), and longer bouts of torpor (252 vs. 193 h at an air temperature of − 1.0 °C) than animals on the sheep fat diet. These physiological variables showed intermediate values in controls. It appears, therefore, that the composition of dietary fatty acids, rather than the fat content of the diet, affected torpor patterns. It is likely that the observed physiological differences may be explained by diet-induced compositional differences in body lipid composition.

A higher proportion of female lambs when ewes were fed oats and cottonseed meal prior to and following conception

2013 ◽  
Vol 53 (5) ◽  
pp. 464 ◽  
Author(s):  
C. E. Gulliver ◽  
M. A. Friend ◽  
B. J. King ◽  
J. F. Wilkins ◽  
E. H. Clayton
Keyword(s):  
Fatty Acids ◽  
Sex Ratio ◽  
Cottonseed Meal ◽  
Body Condition Score ◽  
Control Diet ◽  
Saturated Fat ◽  
Female Offspring ◽  
Dietary Fatty Acids ◽  
Condition Score ◽  
Omega 6

Diets high in omega-6 (n-6) fatty acids in mice have been associated with a higher proportion of female offspring, however, the specific effects of dietary fatty acids on the sex ratio of sheep has not previously been reported. The aim of the present study was to determine whether feeding ewes a diet differing in n-6 for 6 weeks before and 3 weeks following conception would increase the proportion of female lambs born. Merino × Border Leicester ewes (n = 296) were allocated to receive either a diet high in n-6 (70% oat grain, 8% cottonseed meal, High n-6 diet) or, a control diet low in n-6 (88% legume silage, Low n-6 diet), for 42 or 53 days before and 17 days after conception, using a stratified block randomisation procedure based on body condition score and liveweight. Following synchronisation, oestrus was detected daily during natural mating with rams. After mating, all ewes grazed improved pastures as one group until lambing. Plasma n-6 concentrations were greater (P < 0.001), the time to parturition was shorter (P < 0.001) and the proportion of female offspring was higher (58.2 vs 43.5%, P = 0.010) when ewes were fed the High n-6 diet compared with the Low n-6 diet. Further research is required to determine whether the observed differences in sex ratio were due to specific alterations in n-6 fatty acids, or other differences in the diets not specifically related to n-6 such as saturated fat or energy density.

scholarly journals Antioxidant and Antimicrobial Properties of Cactus Pear (Opuntia) Seed Oils

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Esther Ramírez-Moreno ◽  
Raquel Cariño-Cortés ◽  
Nelly del Socorro Cruz-Cansino ◽  
Luis Delgado-Olivares ◽  
José Alberto Ariza-Ortega ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Seed Oil ◽  
Antimicrobial Properties ◽  
Inhibition Zone ◽  
Gas Chromatography Mass Spectrometry ◽  
Seed Oils ◽  
Cactus Pear

Seed oils from two Mexican varieties of cactus pear (green: Opuntia albicarpa and red: Opuntia ficus indica) were extracted with different solvents (hexane, ethanol, and ethyl acetate) to evaluate their antioxidant activity. The seed oil with higher antioxidant activity was selected to evaluate antimicrobial activity. The fatty acid profile was analyzed by gas chromatography-mass spectrometry (GC-MS). Oil from green cactus pear seeds obtained with ethanol and ethyl acetate exhibited higher antioxidant activity (p<0.05) of 323 and 316 μmol TE/20 mg (p < 0.05), respectively, compared to red cactus pear seed oil (≈274 and 247 μmol TE/20 mg with ethyl acetate and ethanol, resp.). The oil obtained with ethanol and higher antioxidant activity was used to determine the antimicrobial activity. Both cactus pear oils produced a microbial inhibition zone in most of the microorganisms evaluated, particularly Saccharomyces cerevisiae which had similar diameter (38–40 mm). The oil fatty acids profiles of both varieties were similar and exhibited a high content of linoleic acid, while two fatty acids (linolenic and behenic) found in red cactus pear were not observed in the green variety.

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