scholarly journals Improvement of the sunflower oil stability by blending with moringa or sesame oils

10.5219/1491 ◽  
2021 ◽  
Vol 15 ◽  
pp. 111-120
Author(s):  
Amina Aly ◽  
Hoda Ali ◽  
Mohamed Abdeldaiem
Keyword(s):  
Sunflower Oil ◽  
Acid Value ◽  
Conjugated Dienes ◽  
Scavenging Activity ◽  
Innovative Products ◽  
Oil Mixtures ◽  
Home Cooking ◽  
Commercial Applications ◽  
Moringa Oil ◽  
Palmitic Acids

Vegetable oils can be adjusted by different methods to enhance their commercial applications and to increase their pure quality nutrition. One of the most leisurely ways of creating new innovative products with desirable textured and oxidative properties is the mixing of vegetable fats/oils of various properties. Pure sunflower (SFO) blended with pure moringa (MOO) and sesame (SEO) oils in the ratio of 95:5 and 90:10 w/w. The outcomes showed that the highest acid value was observed at SFO + SEO 10% (0.782). Sunflower oil stabilized when blended with MOO and the levels of conjugated dienes (CD) and trienes (CT) were depressed compared to control. The TPC value was higher when the sunflower blended with moringa oil. The highest scavenging activity percentage was observed in SFO + MOO 5% and SFO + SEO 10% respectively. Meanwhile, the highest induction period at 100 °C was 11.45 hours in the treatment of SFO + MOO 5%. The master fatty acids in the sunflower and moringa oils are combined (SFO:MOO, 90:10), oleic, and palmitic acids. It seems from the current findings that suitable mixing of high linoleic oils with MOO will result in oil mixtures that can satisfy nutritional wants with expanded balance for home cooking and deep-frying.

Comparison of Bioactive Compounds of Matricaria recutita Extracted by Ultrasound and Maceration and their Effects on Preventing Sunflower Oil During Frying

2019 ◽  
Vol 15 (2) ◽  
pp. 156-164 ◽  
Author(s):  
Reza Farahmandfar ◽  
Maryam Asnaashari ◽  
Yegane Asadi ◽  
Batool Beyranvand
Keyword(s):  
Antioxidant Activity ◽  
Gallic Acid ◽  
Bioactive Compounds ◽  
Sunflower Oil ◽  
Radical Scavenging ◽  
Stability Index ◽  
Acid Value ◽  
Extraction Methods ◽  
Oil Stability Index ◽  
Matricaria Recutita

Background: It is important to study about the use of natural antioxidants as alternatives to synthetic ones due to the possibility of carcinogenic effects of synthetic antioxidants. This study is comparing the effect of the ultrasound-assisted and maceration extraction methods on antioxidant activity of Matricaria recutita. Methods: Bioactive compounds including phenolic, tocopherol, flavonoid and tannins and antioxidant activity of the extracts were evaluated. Moreover, extracts obtained from ultrasound and maceration methods were added to sunflower oil without any antioxidants at level of 200, 500 and 800 ppm, after that samples were heated at 180°C. Oxidation of the samples were evaluated after 0, 4, 8, 12, 16, 20 and 24 hours by measuring Peroxide Value (PV), Conjugated Diene (CD), Iodine Value (IV), Carbonyl Value (CV), Total Polar Compounds (TPC), Oil Stability Index (OSI), Color Index (CI) and acid value (AV). Results: The result showed total phenol (42.90 mg gallic acid/g extract), tocopherol (120.46 µg α - tocopherol/ml extract), flavonoid (2.64 mg/100 g extract) and tannins (3.89 mg gallic acid/g extract) of ultrasound extracts were higher than maceration extracts. Antioxidant activity of the extract was evaluated by DPPH assay which indicated 800 ppm of the Matricaria recutita extracted by ultrasound was the highest radical scavenging ability. Conclusion: Result indicated both ultrasound and maceration extracts could increase the oil oxidative stability but could not increase compared to BHA. In most cases, the extract samples by ultrasound had a better effect on stabilizing of sunflower oil during frying.

scholarly journals Quality Characteristics and Standards for Sunflower Oil from Arad Agricultural Area

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Claudia MUREŞAN ◽  
Anca Mihaela DICU ◽  
Virgil CIUTINA ◽  
Dorina CHAMBRE ◽  
Claudiu URSACHI
Keyword(s):  
Fatty Acid ◽  
High Temperature ◽  
Peroxide Value ◽  
Sunflower Oil ◽  
Quality Characteristics ◽  
Conjugated Dienes ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Specific Absorbance ◽  
Conjugated Dienes And Trienes

The purpose of this study was to determine the unsaturated fatty acid compounds of studied oils, physico-chemical parameters, and the behavior of the four oil types during oxidation and heating. This is a part of a large study effectuated on Carnia sunflower hybrids, PR64H91, PR65A22 and PR64H45 obtained through cold pressing. We followed the evolution of the UV absorption correlated with the peroxide value. The peroxide value has been presented an increased value in the first 12 heating hours, but after this period of time, it has been decreased due to the high temperature instability of the early formed hydro-peroxides. The absorbance between 220-230 nm and the specific absorbance on 232 and 270 nm (characteristic of the conjugated dienes and trienes) have increased along the experiment period. The results were compared with those from regular sunflower oil.

Preliminary Tests of Two-Stroke Cycle Engines Fueled by Ethanol/Sunflower Oil Mixtures

1982 ◽  
Author(s):  
Harry G. Gibson ◽  
R. Mack Strickland ◽  
Stephen Poe
Keyword(s):  
Sunflower Oil ◽  
Oil Mixtures ◽  
Stroke Cycle

Enzymatic interesterification of tallow-sunflower oil mixtures

1993 ◽  
Vol 70 (3) ◽  
pp. 281-285 ◽  
Author(s):  
Thomas A. Foglia ◽  
Kimberly Petruso ◽  
Stephen H. Feairheller
Keyword(s):  
Sunflower Oil ◽  
Enzymatic Interesterification ◽  
Oil Mixtures

EFFECT OF NITROGEN VARIATION ON THE SYNTHESIS OF VERTICALLY ALIGNED BAMBOO-SHAPED C–N NANOTUBES USING SUNFLOWER OIL

2011 ◽  
Vol 10 (04n05) ◽  
pp. 809-813 ◽  
Author(s):  
RAJESH KUMAR ◽  
RAM MANOHAR YADAV ◽  
KALPANA AWASTHI ◽  
R. S. TIWARI ◽  
O. N. SRIVASTAVA
Keyword(s):  
Electron Microscopy ◽  
Sunflower Oil ◽  
Nitrogen Doping ◽  
Nitrogen Concentration ◽  
Structural Features ◽  
Transmission Electron ◽  
Carbon Framework ◽  
Oil Mixtures ◽  
Vertically Aligned

To examine the role of NH3 on bundles of aligned bamboo-shaped carbon–nitrogen (C–N) nanotube were synthesized the pyrolysis of ferrocene (Fe(C5H5)2) and sunflower oil mixtures with NH3 being the source of nitrogen. The concentration of NH3 was varying in volume (vol). Optimized temperature and concentration of ferrocene were 825°C and 10 mg/ml, respectively. With the increase of nitrogen concentration the bundles are breaking in nearly equal parts. With nitrogen doping, the nanotubes have a bamboo-like structure and reveal degraded crystallinity of graphitic sheets. Nitrogen plays key role in generating equal compartments inside the carbon nanotube. The nanotubes were characterized by scanning electron microscopy and transmission electron microscopy that reveal the vertically aligned and hollow structural features of the nanotubes. FTIR shows the incorporation of N atom inside carbon framework and Raman spectrum indicates the enhancement of the defects inside C–N nanotube due to the N atom in C–N nanotube.

scholarly journals Monitoring the stability of fortified cold-pressed sunflower oil under different storage conditions

10.5219/1348 ◽  
2020 ◽  
Vol 14 ◽  
pp. 887-892
Author(s):  
Dani Dordevic ◽  
Simona Jancikova ◽  
Alexandra Lankovova ◽  
Bohuslava Tremlova
Keyword(s):  
Product Development ◽  
Peroxide Value ◽  
Sunflower Oil ◽  
Oxidation Stability ◽  
Storage Conditions ◽  
Human Consumption ◽  
Primary Products ◽  
Oil Mixtures ◽  
The Stability ◽  
Cold Pressed

The aim of the study was to evaluate the stability of cold-pressed sunflower oil mixed with different seeds and herb. The seeds and herb were added at 1% and 5% concentrations; samples were divided into 2 groups: stored in the dark and light. The primary products of oxidation and chlorophyll content were monitored during 3 months of storage. The results showed very low oxidation stability of experimentally produced cold-pressed oil mixtures/dressings, especially during storage on the light. The samples with 5% of hemp herb addition showed the best stability since they have peroxide value under 20 mekv O2.kg-1, both in the dark and on the light. Other samples, both stored in the dark and on light, were declared as not for human consumption due to high oxidative product development. The research represents an important storability evaluation of products that can be found on the market and that can be found very attractive for consumers.

THE EFFECT OF WHOLE SUNFLOWER SEEDS ON THE FLOW OF FAT AND FATTY ACIDS THROUGH THE GASTROINTESTINAL TRACT OF CANNULATED HOLSTEIN STEERS

1987 ◽  
Vol 67 (2) ◽  
pp. 447-459 ◽  
Author(s):  
B. G. WHITE ◽  
J. R. INGALLS ◽  
H. R. SHARMA ◽  
J. A. McKIRDY
Keyword(s):  
Fatty Acid ◽  
Gastrointestinal Tract ◽  
Dietary Intake ◽  
Sunflower Oil ◽  
Latin Square ◽  
Canola Meal ◽  
Sunflower Seeds ◽  
Gi Tract ◽  
True Digestibility ◽  
Palmitic Acids

Four cannulated (rumen, abomasum and ileum) Holstein steers were randomly allotted to four experimental diets in a 4 × 4 Latin square design. Diets contained (1) 4% sunflower oil (SFO); (2) 10% whole sunflower seeds (WSS); (3) 20% WSS and (4) 10% canola meal (LFCM). Dysprosium was used to calculate the flow of the particulate digesta through the gastrointestinal (GI) tract. The ratio of rumen acetate to propionate was increased (P < 0.05) when the LFCM diet was fed compared to when the three oil- or seed-containing diets were fed; there were no differences (P < 0.05) among the oil- or seed-containing diets. Apparent output of fat from the rumen compared to dietary intake was increased (P < 0.05) for all diets except SFO. Differences in fatty acid flow among the four diets diminished (P < 0.05) as the fat flowed through the GI tract. There was a decreased (P < 0.05) output of linoleic acid and an increased (P < 0.05) output of stearic and palmitic acids in the rumen compared to the dietary intake. The three oil diets had a higher (P < 0.05) flow of octadecanoic acids through the GI tract than the LFCM diet, and only the flow of stearic acid through the rumen differed (P < 0.05) among the three oil diets. Apparent digestibilities of dry matter (DM), crude protein (CP), and energy were not different (P < 0.05) among the four diets. Fiber digestibility was unaffected by the increasing fat levels. Fat digestion coefficients increased with increasing dietary intake of fat, and calculated true digestibility of sunflower oil was 83.4%. Key words: Sunflower seeds (whole), fatty acid flow, gastrointestinal tract (lower)

scholarly journals Assessment of quality and food safety of vegetable oils produced on the base of wild berries of Kazakhstan`s forest areas

2020 ◽  
Author(s):  
G. Аidarkhanova ◽  
◽  
Z. Satayeva ◽  
A. Ebel ◽  
М. Jakanova ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Food Safety ◽  
Polyunsaturated Fatty Acids ◽  
Vegetable Oils ◽  
Sunflower Oil ◽  
Biological Efficiency ◽  
Quantitative Composition ◽  
Anthropogenic Pressure ◽  
Oil Mixtures ◽  
Wild Berries

Many species of forest plants in combination with vegetable oils are the sources of new types of functional products with increased biological efficiency. In respect that the high demand for vegetable oils among the population and industry, the growing anthropogenic pressure on various components of the natural environment, the goal of the research was to create oil mixtures based on sunflower oil and wild berries selected in the forest areas of Kazkhstan`s regions, assess their quality and food safety. The base of the oil mixture was sunflower oil obtained from sunflower seeds by the "cold squeeze" method. Wild berries selected from forest areas of northern (Elaeagnusrhamnoides (L.) A. Nelson) and eastern (Rosa majalisHerrm.,Vacciniummyrtillis L.) of Kazakhstan were used as bio-additives. In the obtained oil mixtures, the basic parameters of their qualitative and quantitative composition were studied. It was found that by density (917-918), refractive index (1,473), acid number (1,4 mg KOH/g), iodine number (130-132 g J2/100), saponification number (188 mg/g) of the tested oil mixtures they correspond to unrefined vegetable oil of higher grade. The content of heavy metals (Pb, As, Cd, Cu, Zn, Mg) and radionuclides (90Sr, 137Cs) does not exceed the maximum permissible concentrations and meets the requirements of regulatory documents and standards. In samples of vegetable oils, the amount of oleic acid (52,21%), linoleic acid (28,97%) is determined, which are within the normal range, although they are adjacent to the levels of the upper limits. NMR spectroscopy confirmed that the optimal ratio of ω-6 and ω-3 polyunsaturated fatty acids in the composition of the studied vegetable oils correspond to their name in the ratio of monounsaturated and polyunsaturated fatty acids.

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