Articoli di riviste: "Sunflower seed oil"

1

Gunstone, Frank D. "Sunflower seeds and sunflower seed oil". Lipid Technology 19, n. 10 (ottobre 2007): 240. http://dx.doi.org/10.1002/lite.200700071.

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Gunstone, Frank D. "Sunflower seed oil". Lipid Technology 23, n. 12 (dicembre 2011): 288. http://dx.doi.org/10.1002/lite.201100155.

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Gunstone, Frank D. "Sunflower seed and oil". Lipid Technology 25, n. 1 (gennaio 2013): 24. http://dx.doi.org/10.1002/lite.201300246.

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List, Gary. "Sunflower seed and oil". Lipid Technology 26, n. 1 (gennaio 2014): 24. http://dx.doi.org/10.1002/lite.201400003.

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List, Gary. "Sunflower seed and oil". Lipid Technology 27, n. 1 (gennaio 2015): 24. http://dx.doi.org/10.1002/lite.201400076.

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List, Gary. "Sunflower seed and oil". Lipid Technology 28, n. 1 (gennaio 2016): 24. http://dx.doi.org/10.1002/lite.201600006.

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List, Gary. "Sunflower Seed and Oil". Lipid Technology 29, n. 1-2 (gennaio 2017): 16. http://dx.doi.org/10.1002/lite.201700005.

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Gunstone, Frank D. "Sunflower seed oil (and castor oil)". Lipid Technology 22, n. 5 (maggio 2010): 120. http://dx.doi.org/10.1002/lite.201000017.

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9

Dai, X. J., C. Wang e Q. Zhu. "Milk performance of dairy cows supplemented with rape seed oil, peanut oil, and sunflower seed oil". Czech Journal of Animal Science 56, No. 4 (5 aprile 2011): 181–91. http://dx.doi.org/10.17221/1434-cjas.

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The objective of the study was to investigate the effects of supplementing different plant oils to the basal diet on milk yield and milk composition in mid-lactating dairy cows. Forty Chinese Holstein dairy cows averaging 120 days in milk (DIM) at the start of the experiment (body weight = 580 ± 18.2 kg; milk yield = 33.0 ± 2.00 kg/day) were used in a completely randomized block design. The animals were assigned to four dietary treatments according to DIM and milk yield, and supplemented with no oil (control), 2% rapeseed oil (RSO), 2% peanut oil (PNO) and 2% sunflower seed oil (SFO). Milk yield and milk composition (fat, protein, and lactose) were measured. Dry matter intake was similar in all treatments. The supplementation of plant oil increased milk yield, with the highest milk yield in RSO group. Percentages of milk fat, lactose, solids-not-fat and SCC were not affected by treatments except for an increase in milk protein content in oil supplemented groups. The fatty acid (FA) profile of milk was altered by fat supplementation. Feeding plant oils reduced the proportion of both short-chain (C4:0 to C12:0) and medium-chain (C14:0 to C16:1) fatty acids, and increased the proportion of long-chain (≥ C18:0) fatty acids in milk fat. The inclusion of vegetable oils increased the concentration of cis-9, trans-11 CLA. The cis-9, trans-11 CLA content in milk fat was higher from RSO to PNO and SFO was higher than the control. The TVA concentration was higher in the SFO diet, followed by PNO, RSO, and control diets. The results of this study indicated that linoleic acid was more effective in enhancing contents of TVA and CLA in milk fat than oleic acid. No significant effects of week and treatment by week interaction were found out in this study. Overall, feeding plant oils increased monounsaturated and polyunsaturated fatty acids and decreased saturated fatty acids in milk fat. In conclusion, dietary supplementation of RSO increases milk yield the most, while SFO enhances the cis-9, trans-11 CLA content in milk fat more effectively.

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10

An, Jin. "Anaphylaxis to Sunflower Seed with Tolerance to Sunflower Oil: A Case Report". Medicina 57, n. 7 (27 giugno 2021): 661. http://dx.doi.org/10.3390/medicina57070661.

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Sunflower seeds (Helianthus annuus) are an uncommon source of allergy; however, some cases of allergy to sunflower seeds have been reported. Sunflower seed sensitization occurs to storage proteins (2S albumins) and lipid transfer proteins (LTPs). A 46-year-old female presented three allergic reactions within minutes of consuming sunflower seeds. A prick-to-prick test indicated a positive reaction only to sunflower seeds and a negative reaction to other nuts, such as almond, hazelnut, pistachio, cashew, peanut, macadamia, sesame, and walnut. Prick-to-prick and oral provocation tests of sunflower oil were performed, and a negative result was obtained. The patient was prescribed a 0.3 mg epinephrine autoinjector device for emergency intramuscular administration. The patient is currently under avoidance of sunflower seed but eats food cooked in sunflower seed oil. Based on this case, we should recognize that sunflower seeds have the potential to cause severe anaphylaxis, which indicates tolerance to sunflower oil. An accurate and fast diagnosis allows timely recommendation to practice strict avoidance of sunflower seeds, thus reducing the possibility of recurrence of an anaphylactic reaction.

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Gasparini, Marta Juliane, Simone Fernanda Nedel Pertile, Rafaela Machado dos Santos, José Victor Pronievicz Barreto, Marilice Zundt, Edson Luis Azambuja Ribeiro, Caliê Castilho, Luiz Fernando Coelho Cunha Filho e Fabíola Cristine de Almeida Rego. "Carcass and meat quality of lambs fed with sunflower seed or oil". Research, Society and Development 9, n. 9 (3 settembre 2020): e682997667. http://dx.doi.org/10.33448/rsd-v9i9.7667.

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The objective of this study was to compare the use of sunflower seeds and oil as a fat source in the diets of finishing lambs. Twelve crossbred Santa Inês × Dorper lambs, with an average initial weight of 22.10 ± 3.82 kg were housed in individual pens and divided into two treatments: diets with sunflower seeds or oil. The total diet of both groups contained 33% roughage (tifton grass hay 85) and 67% concentrate. The proportion of sunflower oil and seeds in the total dry matter of the diets was 1.83% and 5.51%, respectively for the treatments oil and seed. The experimental period lasted for 75 days. The animals were slaughtered when they reached an average live weight of 35 kg. The carcass and meat variables were not different between the treatments studied. The presence of oil or sunflower seeds in the diets, both with a high level of concentrate (67%), did not influence the pH values of the meat, with average values of 5.8 and 5.6, respectively. The use of 5.5% sunflower seed, or 1.8% sunflower oil, as fat sources in diets of crossbred Santa Inês X Dorper lambs in finishing, were effective to obtain quality meat and carcasses.

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12

Potter, TD, e PI McLoud. "Evaluation of sunflower cultivars in South Australia". Australian Journal of Experimental Agriculture 25, n. 1 (1985): 178. http://dx.doi.org/10.1071/ea9850178.

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Seed yields and oil contents were determined for several sunflower cultivars grown in the south-east of South Australia over a range of environments which included different locations and years. Data were analysed by modified joint regression techniques. Each cultivar was included in at least four experiments to allow analysis by modified joint regression. The highest seed yields were produced by Hysun 3 1, Sungold, Suncross 52, Sunking and Hysun 30, which produced 16.4, 15.4, 14.7, 12.4 and 7.4% more seed, respectively, than Peredovik. Seeds with the highest oil contents were produced by Suncross 52 (48.6% w/w) and Hysun 31 (48.3%); Hysun 10 and Stepniak produced seeds with the lowest oil content (43.7 %) . Later flowering cultivars had significantly higher seed yields and oil contents than earlier flowering cultivars, indicating that they were better adapted to the environment. For every day that flowering of a cultivar was later than that of Perodovik, mean seed yield increased by 56.6 kg/ha and oil content by 0.4%.

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Wall, David A. "Sunflower (Helianthus annuus L) tolerance to sublethal doses of imazethapyr". Canadian Journal of Plant Science 76, n. 4 (1 ottobre 1996): 937–40. http://dx.doi.org/10.4141/cjps96-157.

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Field experiments were conducted from 1992 to 1995 at Morden, Manitoba to investigate the tolerance of sunflower to sublethal doses of imazethapyr {2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acid). Imazethapyr was applied at 0, 0.375, 0.75, 1.5, 3, and 6 g a.i. ha−1 plus a nonionic surfactant at 0.25% vol/vol when sunflowers were in the six-leaf stage. Dosages higher than 1.5 g ha−1 severely injured sunflowers in some years. Injury symptoms consisted of chlorosis, stunting and seed head deformities. At the dosages tested, imazethapyr reduced sunflower yields in only 1 of 4 yr. In 1994, dosages greater than 1.5 g ha−1 reduced achene yields by 19–38%. Seed oil content was reduced in 2 of 4 yr. At 6 g ha−1 of imazethapyr seed oil content was reduced by as much as 3.2 percentage points compared with the untreated check. While low dosages of imazethapyr may not reduce yields in most years, the potential for severe yield losses and reduced oil contents exist and caution should be used when applying imazethapyr in fields next to sunflowers. Key words: Crop injury, herbicide drift, yield, oil content

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Katja, Dewa G. "Kualitas Minyak Bunga Matahari Komersial dan Minyak Hasil Ekstraksi Biji Bunga Matahari (Helianthus annuus L.)". JURNAL ILMIAH SAINS 12, n. 1 (30 aprile 2012): 59. http://dx.doi.org/10.35799/jis.12.1.2012.403.

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KUALITAS MINYAK BUNGA MATAHARI KOMERSIAL DAN MINYAK HASIL EKSTRAKSI BIJI BUNGA MATAHARI (Helianthus annuus L.) ABSTRAK Minyak komersial dan minyak hasil ekstrasi dari biji bunga matahari melalui uji kadar air, kadar asam lemak bebas, bilangan peroksida. Analisis hasil ekstrak biji bunga matahari diperoleh kadar air 0,43%, kadar asam lemak bebas 0,47% dan bilangan persoksida 5,22 mek/kg. analisis minyak komersial diperoleh kadar air 0,21%, kadar asam lemak bebas 0,28% dan bilangan peroksida 4,18 mek/kg. Hasil analisis dengan kromatografi gas kedua sampel menunjukkan kadar asam lemak bebas berbeda. Berdasarkan uji kualitas yang dilakukan terhadap kedua sampel yang dianalisis terdapat hasil yang diperoleh tidak memenuhi syarat yang ditentukan yakni kadar asam lemak bebas 0,08% dan bilangan peroksida 2 mek/kg. Kata kunci: Asam lemak bebas, bilangan proksida, minyak biji bunga matahari QUALITY OF COMMERCIAL SUNFLOWER OIL AND OIL EXTRACTION SEEDS SUNFLOWER (Helianthus annuus L.) ABSTRACT Experimental study of analyzing the extract oil from sunflower seed compare with the commercial sunflower seed oil according to the company standard which includes determining of moisture content, free fatty acid content, peroxide value and the fatty acids compositions is reported in this paper. The result show that the moisture content of the extract oil is 0,43%, free fatly acid content is 0,47%, and the peroxide value is 5,22% mek/Kg. For the commercial sunflower seed oil company product that is 0,21% for the moisture, free fatty acid is 0,28% and the peroxide value is 4,89 mek/Kg. The gas chromatography analysis indicated that the most fatty acid from both samples is linoleic acid. The quality of the extract sunflower seed oil has not been improved to conform with the commercial quality according to the company standard, that is 0,08% for the free fatty acid and 2 mek/Kg for the peroxide value. Keywords: Free fatty acid, peroxide value, sunflower seeds oil

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Halsey, Alan B., Michael E. Martin, Michael E. Ruff, Frank O. Jacobs e Robert L. Jacobs. "Sunflower oil is not allergenic to sunflower seed-sensitive patients". Journal of Allergy and Clinical Immunology 78, n. 3 (settembre 1986): 408–10. http://dx.doi.org/10.1016/0091-6749(86)90025-4.

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16

Karunajeewa, H., S. H. Tham e S. Abu-Serewa. "Sunflower seed meal, sunflower oil and full-fat sunflower seeds, hulls and kernels for laying hens". Animal Feed Science and Technology 26, n. 1-2 (ottobre 1989): 45–54. http://dx.doi.org/10.1016/0377-8401(89)90005-9.

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Prasifka, J. R., L. F. Marek, D. K. Lee, S. B. Thapa, V. Hahn e J. D. Bradshaw. "Effects from Early Planting of Late-Maturing Sunflowers on Damage from Primary Insect Pests in the United States". Helia 39, n. 64 (1 luglio 2016): 45–56. http://dx.doi.org/10.1515/helia-2015-0016.

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AbstractDelayed planting is recommended to reduce damage from sunflower insect pests in the United States, including the sunflower moth, Homoeosoma electellum (Hulst) and banded sunflower moth, Cochylis hospes Walsingham. However, in some locations, planting earlier or growing later-maturing hybrids could improve yield or oil content of sunflowers which would partially offset any added costs from insect pests or their management. Because the abundance and distribution of some sunflower insects have changed since recommendations for delayed planting were developed, experimental plots were grown in 2012 and 2013 at sites in North Dakota, Nebraska, Iowa, and Illinois. Sunflowers were planted two to four weeks earlier than normal, including hybrids that flower two to three weeks later than elite commercial hybrids. The sum of seed damaged by sunflower moth, banded sunflower moth, and red sunflower seed weevil, Smicronyx fulvus LeConte, (i. e., total percentage) was influenced by location, but not the relative maturity of tested entries. However, when damage attributed solely to the red sunflower seed weevil was analyzed, more damaged seed were found for late-maturing entries in North Dakota and Nebraska. In addition to the trial data, current pest populations are lower than when delayed planting was first recommended and insecticide use during sunflower bloom is both common and effective. Together, these observations suggest factoring insect pests into planting time decisions may be unnecessary, except for areas with a history of problems with severe pests that cannot be managed using insecticides (e. g., sunflower midge, Contarinia schulzi Gagné).

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Abreu, Luciana Aparecida de Souza, Maria Laene Moreira de Carvalho, Crislaine Aparecida Gomes Pinto, Verônica Yumi Kataoka e Tanismare Tatiana de Almeida Silva. "Deterioration of sunflower seeds during storage". Journal of Seed Science 35, n. 2 (2013): 240–47. http://dx.doi.org/10.1590/s2317-15372013000200015.

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The speed on deterioration of oil-seeds depends on conditions of the storage environment and on particularities of the species, which include the seed chemical composition. Within this study, the changes on quality of sunflower seeds, stored in different packaging types and environmental conditions, were investigated. The packaging used were multiwall Kraft paper and plastic packaging (with and without vacuum), under cold chamber and conventional storage conditions. Seed quality was evaluated by tests of: germination and accelerated aging; besides alterations on oil content, fatty acids profile, and isoenzymatic systems. The storage under cold chamber conditions was more efficient in maintaining physiological quality of sunflower seeds; and under such environment, the Kraft paper packaging was the most adequate. Under conventional storage facility, however, the plastic packaging, sealed with vacuum, has provided better maintenance of physiological quality. Changes in the sunflower seed quality were detected by the enzymatic systems: alcohol dehydrogenase and superoxide dismutase. The oil content in seeds decreases over time, regardless of storage condition. The linoleic and oleic acids constituted 80% of the total amount of fatty acids scanned. There have been no significant differences on the fatty acid profiles of the sunflower oil under the different storage conditions studied.

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Goryunova, S. V., D. V. Goryunov, A. I. Chernova, E. U. Martynova, A. E. Dmitriev, S. V. Boldyrev, A. F. Ayupova et al. "Genetic and Phenotypic Diversity of the Sunflower Collection of the Pustovoit All-Russia Research Institute of Oil Crops (VNIIMK)". Helia 42, n. 70 (26 luglio 2019): 45–60. http://dx.doi.org/10.1515/helia-2018-0021.

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AbstractPublicly supported collections of cultivated germplasm are one of the key sources of new genes for crop improvement. VNIIMK is the leading organization in oil and essential oil crop breeding and seed growing in the Russian Federation with more than a century-long history. Sunflower varieties created by V.S. Pustovoit at VNIIMK became the basis for the development of the modern sunflower varieties worldwide. In the present study, 186 sunflower lines from the VNIIMK collection were characterized based on their genotype and general morphological and phenological economically-important traits. Additionally, for 99 sunflower lines fatty acid content, seed oil content, seed husk content, 100-seed weight, and seed number in the head were determined. Sequencing of RAD-libraries and the subsequent analysis have identified 65,553 variants including SNPs and indels. LD analysis revealed substantial variability across the genome. The longest LD blocks (>5,000 Kb) were found in the linkage groups 1, 5, and 17. The analysis revealed significant genetic and phenotypic diversity of the VNIIMK sunflower collection. Novel significant associations with linolenic acid content in the seeds were found on LGs 8, 9, and 17.

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Harrington, Kevin J., e Catherine D'Arcy-Evans. "Transesterification in situ of sunflower seed oil". Industrial & Engineering Chemistry Product Research and Development 24, n. 2 (giugno 1985): 314–18. http://dx.doi.org/10.1021/i300018a027.

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VELASCO, L., L. DEL MORAL, B. PÉREZ-VICH e J. M. FERNÁNDEZ-MARTÍNEZ. "Selection for contrasting seed tocopherol content in sunflower seeds". Journal of Agricultural Science 148, n. 4 (13 gennaio 2010): 393–400. http://dx.doi.org/10.1017/s0021859609990608.

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SUMMARYSunflower oil, with more than 0·9 of tocopherols in the alpha-tocopherol form, supplies more vitamin E than any other vegetable oil. Thus far, no breeding to increase vitamin E levels in sunflower seeds has been conducted. The objective of the present research was to develop sunflower lines with high and low total seed tocopherol content through evaluation and subsequent selection of a large germplasm collection (952 sunflower entries). A range of variation from 119 to 491 mg/kg was found. Selection conducted from S1 to S4 plant generations allowed the isolation of line IAST-413, with an increased tocopherol content of 467 mg/kg compared to 251 mg/kg in the control line HA89, and line IAST-522, with a reduced tocopherol content of 73 mg/kg. Another accession with potentially high tocopherol content, but completely self-incompatible, was crossed to the line HA89 followed by plant-to-row selection up to the F5 plant generation; it averaged 463 mg/kg compared to 240 mg/kg in HA89. Two field experiments carried out at Córdoba in southern Spain in 2006 and 2007 with different sowing dates confirmed that the increased tocopherol content in the selected lines was consistently expressed across environments.

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Lim, Audrey R. Q., Que Kong, Sanjay K. Singh, Liang Guo, Ling Yuan e Wei Ma. "Sunflower WRINKLED1 Plays a Key Role in Transcriptional Regulation of Oil Biosynthesis". International Journal of Molecular Sciences 23, n. 6 (11 marzo 2022): 3054. http://dx.doi.org/10.3390/ijms23063054.

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Sunflower (Helianthus annuus) is one of the most important oilseed crops worldwide. However, the transcriptional regulation underlying oil accumulation in sunflower is not fully understood. WRINKLED1 (WRI1) is an essential transcription factor governing oil accumulation in plant cells. Here, we identify and characterize a sunflower ortholog of WRI1 (HaWRI1), which is highly expressed in developing seeds. Transient production of HaWRI1 stimulated substantial oil accumulation in Nicotiana benthamiana leaves. Dual-luciferase reporter assay, electrophoretic mobility shift assay, fatty acid quantification, and gene expression analysis demonstrate that HaWRI1 acts as a pivotal transcription factor controlling the expression of genes involved in late glycolysis and fatty acid biosynthesis. HaWRI1 directly binds to the cis-element, AW-box, in the promoter of biotin carboxyl carrier protein isoform 2 (BCCP2). In addition, we characterize an 80 amino-acid C-terminal domain of HaWRI1 that is crucial for transactivation. Moreover, seed-specific overexpression of HaWRI1 in Arabidopsis plants leads to enhanced seed oil content as well as upregulation of the genes involved in fatty acid biosynthesis. Taken together, our work demonstrates that HaWRI1 plays a pivotal role in the transcriptional control of seed oil accumulation, providing a potential target for bioengineering sunflower oil yield improvement.

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Silva, Carina A. S., Wesley A. C. Godoy, Cynthia R. O. Jacob, Gustavo Thomas, Gil M. S. Câmara e Denise A. Alves. "Bee Pollination Highly Improves Oil Quality in Sunflower". Sociobiology 65, n. 4 (11 ottobre 2018): 583. http://dx.doi.org/10.13102/sociobiology.v65i4.3367.

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Sunflower is a pollinator-dependent crop and one of the most cultivated oilseeds in the world, supporting important sectors of the agricultural industry, such as the food supply, because it is an important source of vitamin E and unsaturated fatty acids for human health. Although it is well stablished that bee pollination improves sunflower seed set, it is still unknown if pollinators influence the nutritional composition. Considering the economic importance of sunflowers for several Brazilian agricultural sectors, the aim of this study was to evaluate the effect of the bee community for (1) achene quality (weight and nutritional composition) and (2) market value. Exclusion experiments were performed with hybrid sunflowers and showed that bee pollination enhanced the achene weight by 91 %, the levels of vitamin E by 45 % and unsaturated fatty acids by 0.3 %. Also, it was estimated that due to the pollination services provided by bees, the grower of the sunflower cultivar used in this study nearly duplicates the sale value of the achenes per hectare of cultivated area. Thus, the current study highlights the importance of bees as providers of cross- and self-pollination to nutritional quality of sunflower achenes and provides useful baseline figures to further evaluations of the effects of pollinators on human diets and health.

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Mekonnen, Zewdie, Abrha Gebreselema e Yohannes Abere. "Effect of Locally Manufactured Niger Seed Oil on Lipid Profile Compared to Imported Palm and Sunflower Oils on Rat Models". Journal of Lipids 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/7846350.

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Background. Different types of dietary lipids have been shown to affect lipid metabolism and lipid profile differently. Objective. This study aims to assess the effect of local niger seed oil on serum lipid profile compared to palm oil and sunflower oil in rats. Methods. The effect of the 15% plant oils on serum lipid profile, body weight gain percentage, and feed efficiency ratio was assessed after 8 weeks of experimental period. Results and Conclusion. The 15% niger seed oil showed decrease and increase in the level of lipid profile as compared to rats fed with 15% palm oil and sunflower oil (except Triacylglycerol), respectively. The 15% niger seed oil showed significant decrease and increase in body weight gain percentage as compared to the 15% palm oil and 15% sunflower oil, respectively. The feed efficiency ratio was significantly higher and lower in the 15% niger seed oil compared to rats fed with 15% sunflower oil and control group and the palm oil fed rats, respectively. The current study concluded that consumption of locally manufactured niger seed oil decreased the blood lipid profiles, body weight gain percentage, and feed efficiency ratio as compared to palm oil. Utilization of oils containing more unsaturated fatty acids like niger seed oil is recommended to reduce the risk of developing cardiovascular disease.

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Ivanova, O. M., S. A. Erofeev, S. V. Vetrova e M. R. Makarov. "Fertilizers influence on yield and yield quality of sunflower variety Spartak bred in Tambov Research Institute of Agriculture". Oil Crops 3, n. 183 (30 novembre 2020): 92–98. http://dx.doi.org/10.25230/2412-608x-2020-3-183-92-98.

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In 2014–2019, we studied impact of various doses, methods and dates of applying of macro- and microfertilizers on seed and oil yields, oil content of sunflower variety Spartak bred in the Tambov Research Institute of Agriculture. The research was conducted in the Tambov region on typical black soils in 6-field crop rotation. We studied action of a liquid mineral fertilizer Megamix applied for beforesowing treatment of seeds and for foliar fertilizing of sunflower plants of the variety Spartak under application of N30P30K30 and N60P60K60. The scheme of a trial included variants with seeds treatment with the liquid mineral fertilizer Megamix and foliar fertilizing of sunflower plants in various phases of vegetative period, both separately and in complex with mineral fertilizers. For the first rotation (2014–2019), the highest seed and oil yields were obtained in variant five: N30P30K30 + seed treatment with Megamix (2.0 l per t), – 2.78 and 1.42 t per ha, respectively. The most effective method of microfertilizers application appeared to be before-sowing seed treatment. Variant five (N30P30K30 + seed treatment with Megamix (2.0 l per t) increased oil yield relative to control by 0.21 t per ha, and relative to variant two (only N30P30K30) – by 0.09 t per ha. The rest variants in the trial slightly exceeded control (variant one) both in seed and oil yields. We analyzed a role of traditional mineral fertilizers and liquid mineral fertilizer Megamix at cultivation of sunflower variety Spartak on typical black soil in the conditions of the Tambov region.

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VELASCO, L., J. M. FERNÁNDEZ-MARTÍNEZ, R. GARCÍA-RUÍZ e J. DOMÍNGUEZ. "Genetic and environmental variation for tocopherol content and composition in sunflower commercial hybrids". Journal of Agricultural Science 139, n. 4 (dicembre 2002): 425–29. http://dx.doi.org/10.1017/s0021859602002678.

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Tocopherols are the most important compounds having antioxidant activity in sunflower seeds. The objective of the present research was to study the genetic and environmental variation for tocopherol content and composition in sunflower. Thirty-six sunflower hybrids were grown at 13 locations across all major areas of sunflower cultivation in southern Spain. Seed yield, 100 seed weight, oil content and tocopherol content and composition were determined. Tocopherol content ranged from 314·5 to 1024·5 mg/kg seed and from 562·8 to 1872·8 mg/kg oil. The tocopherol fraction was largely composed of alpha-tocopherol, which accounted for 88·4% to 96·3% of the total tocopherols. Both genotypic and environmental effects were significant for tocopherol content and composition. For alpha-, beta- and total tocopherol content, the effect of the genotype was larger than that of the environment, whereas the latter had a greater effect on gamma-tocopherol content. Genotype×location interaction was significant for alpha-, gamma- and total tocopherol content. Tocopherol content was not correlated with seed oil or seed yield, indicating the possibility of selecting for this trait without affecting the performance of the genotypes.

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Diapari, Didid, Widya Hermana, Febrina Prameswari e Anuraga Jayanegara. "Physiological Response and Haematological Profile of Reproductive Ewe Consuming Diet Supplemented with Black Tea Extract and Sunflower Seed Oil". ANIMAL PRODUCTION 19, n. 3 (13 agosto 2018): 143. http://dx.doi.org/10.20884/1.jap.2017.19.3.622.

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This study was aimed to examine the effect of black tea extract addition in diet containing 4% and 6% sunflower oil on ewe physiological responses and blood profiles from late pregnancy until early lactation. This study was designed using a 2×2 factorial completely randomized design with 5 replications on 20 late-pregnant ewes. The first factor was two levels of sunflower seed oil (4% and 6%) and the second factor was the levels of black tea extract addition (0 ppm and 500 ppm). Data were analyzed by using analysis of variance (ANOVA) and Duncan’s multiple range test. Results showed that supplementation of sunflower seed oil and black tea extract had no effect on physiological responses and blood profiles of ewe during late pregnancy until early lactation except for erythrocyte numbers. Erythrocyte numbers were higher on 6% sunflower seed oil supplementation than that of 4% (P<0.05). In conclusion, addition of black tea extract in diets containing 4% and 6% sunflower seed oil limitedly affect physiological responses and blood profiles of ewe.

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Hladni, Nada, Sinisa Jocic, Anto Mijic, Vladimir Miklic e Dragana Miladinovic. "Correlation and path analysis of yield and yield components of confectionary sunflower". Genetika 48, n. 3 (2016): 827–35. http://dx.doi.org/10.2298/gensr1603827h.

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Path coefficient analysis was applied to gain information on direct and indirect effects of studied traits (seed oil content, kernel oil content, seed protein content, kernel protein content, head diameter, kernel ratio and plant height) on sunflower seed yield. Traits which exhibit the highest effects on seed yield will be used as a selection criterion in confectionary sunflower breeding. The research was conducted during three vegetation seasons on 22 experimental confectionary sunflower hybrids, created in breeding program the Institute of Field and Vegetable Crops. Among the largest number of examined traits, significant and highly significant correlations were found. With the analysis of simple correlation coefficients a low interdependence was determined between, kernel protein content, plant heights with seed yield. Negative but weak correlation was determined between kernel oil content, seed protein content, kernel ratio with seed yield. Established a negative strong correlation of head diameter (-0.190*) and negative very strong correlation of seed oil content (-0.351**) with seed yield. The seed oil content had a very strong direct negative effect on seed yield (DE=-0.831**). The head diameter, plant height, seed protein content had weak negative direct effect on seed yield. Kernel protein content and kernel oil content has demonstrated a weak direct positive effect on seed yield. Path coefficient analysis for seed yield showed very strong direct effect for kernel ratio (DE=0.487*) on seed yield, it shows that the kernel ratio is important selection criterion for confectionary sunflower breeding.

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BONOS (Ε. ΜΠΟΝΟΣ), E., E. CHRISTAKI (Ε. ΧΡΗΣΤΑΚΗ) e P. FLOROU-PANERI (Π. ΦΛΩΡΟΥ-ΠΑΝΕΡΗ). "The sunflower oil and the sunflower meal in animal nutrition". Journal of the Hellenic Veterinary Medical Society 62, n. 1 (10 novembre 2017): 58. http://dx.doi.org/10.12681/jhvms.14836.

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The sunflower plant (Helianthus annuus) is an annual herbaceous plant of the Asteraceae family. It is grown primarily for its seeds, the sunflower oil and the sunflower meal obtained from it, but also as an ornamental plant, as feed and as fuel. The sunflower seed is comprised from the husk on the outside and the kernel on the inside, whereas depending on the oil content it is categorised in two varieties, one with low oil content (average 25%) and another with high oil content (40% - 51%). The sunflower oil is high in unsaturated fatty acids, vitamin E and plant sterols and low in saturated fatty acids. The fatty acids composition of the sunflower oil depends mainly on the variety of the sunflower seeds and thus the sunflower oil is categorised in linoleic sunflower oil or classic (with high polyunsaturated fatty acids content), oleic sunflower oil or High-oleic (with a high monounsaturated fatty acids content) and middle oleic sunflower oil or NuSun (with an intermediate oleic acid content). It is marketed as raw oil or refined oil. The sunflower oil is added to the rations of farm animals in order to increase their energy content and to meet their essential fatty acids needs. Nowadays, many researchers study its effect on the composition of milk, meat and eggs produced from farm animals, in order to obtain characteristics more desirable for the human consumers, such as higher concentration of unsaturated omega-3 and omega-6 fatty acids, as well as higher concentration of conjugated linoleic acid (CLA). The sunflower meal is the main byproduct of the sunflower seeds after oil extraction. Sunflower meal may differ in color and texture, as well as in their chemical composition, depending on the variety of the sunflower, the degree of hull removal and the method of treatment. The crude fiber content varies from 12% to 32%, the crude protein from 24% to 44% and the ether extract from 1% to 10%. It also contains a significant amount of vitamins and non-starch polysaccharides. The sunflower oil and the sunflower meal can be used in the nutrition of both monogastric animals and ruminants.

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30

Khatun, M., Tanvir MB Hossain, MA Monayem Miah, S. Khandoker e MA Rashid. "Profitability of sunflower cultivation in some selected sites of Bangladesh". Bangladesh Journal of Agricultural Research 41, n. 4 (17 dicembre 2016): 599–623. http://dx.doi.org/10.3329/bjar.v41i4.30694.

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The study was conducted in Bogra and Satkhira districts to assess the socioeconomic status, profitability, problems and prospects of sunflower cultivation in Bangladesh. A total of 100 sunflower cultivating farmers, taking 50 farmers from each district, were randomly selected for this study. About 18% female farmers were also found to cultivate sunflower due to its beauty and easy cultivation method. Majority of the farmers had only one year experience of sunflower cultivation. Per hectare cost of producing sunflower was estimated as Tk. 62,199. Per hectare net return and BCR were Tk. 10,863 and 1.18, respectively which indicated that sunflower cultivation was profitable. Stochastic frontier function revealed that the use of labour, seed, organic fertilizers, cost of irrigation, and land type had positive and significant effect on the yield of sunflower. Average technical efficiency of the farmers was 86% which implies that there is a scope of increasing productivity of sunflower by 14% using current level of inputs by increasing the farmers efficiency. Lack of irrigation facility, scarcity of seed on time, absence of sunflower oil mill and sunflower market, low demand for sunflower, high cost of seed, etc. were the major problems of sunflower production and marketing. In spite of having some problems 18% female farmers became interested to cultivate and 46% farmers of Satkhira district mentioned that their demand for edible oil is becoming fulfil. So there is great potentiality of sunflower cultivation in Bangladesh. The availability of sunflower seed with low cost and establishment of sunflower oil mill is needed to sustain this crop in Bangladesh. Therefore, import dependency on soybean oil will be reduced.Bangladesh J. Agril. Res. 41(4): 599-623, December 2016

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31

Agafonov, O. S., e S. M. Prudnikov. "Development of Simulator Reference Materials of Oleic Acid Mass Fraction in Sunflower Seed Oil". Reference materials 15, n. 4 (15 gennaio 2020): 42–48. http://dx.doi.org/10.20915/2077-1177-2019-15-4-41-48.

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The article presents the results of studying of nuclear magnetic relaxation characteristics of protons, which contain in various organosilicon fluid brands, with the aim of justifying the possibility of their use in the development of simulator reference materials (RMs) of oleic acid mass fraction in sunflower seed oil. The data characterizing the NM-relaxation characteristics of organosilicon liquids, varying in a viscosity index, are provided. Based on the range of changes in the time of spin-spin relaxation of protons containing in oil of sunflower seeds with various mass fraction of oleic acid (157-200 msec) there are select silicon organic fluids, that allow the most accurate simulation of wave-form envelopes of oil protons spin echo signals in the seeds. The simulator reference materials under development are intended for use in the calibration of NMR-analyzers for determination of oleic acid mass fraction in of sunflower seed oil.

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32

Gjorgjieva, Biljana, Ilija Karov, Sasa Mitrev, Natalija Markova Ruzdik, Emilija Kostadinovska e Biljana Kovacevik. "Correlation and Path Analysis in Sunflower (Helianthus annuus L.)". Helia 38, n. 63 (1 dicembre 2015): 201–10. http://dx.doi.org/10.1515/helia-2015-0008.

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AbstractThis study was carried out to determine the correlation between agronomic traits and seed yield of sunflower hybrids and also to determine the direct and indirect effects of analyzed traits on seed yield. The primary task in sunflower breeding programs is to increase the seed yield, as well as create new hybrids with high potential for seed and oil yield. The experiment was set up according to randomized block design during two growing seasons (2013 and 2014), on research area of the Faculty of Agriculture, “Goce Delchev” University – Shtip, in Ovche Pole locality, Republic of Macedonia. As an experimental material 20 sunflower hybrids were used. 1,000 seed weight, seed length and width, oil content, oleic acid content and seed yield were analyzed. 1,000 seed weight showed positive and significant correlation with seed width, seed length and seed yield. On the other hand, negative and significant correlation was obtained between 1,000 seed weight and oil content. 1,000 seed weight expressed the highest positive direct effect on seed yield. The results obtained from correlation and path analysis showed that the efficiency in the selection of seed yield in sunflower hybrids should increased through the selection of 1,000 seed weight.

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33

Sun, Zhi Xian, Xiao Zheng, Guo Xiang Lin e Xiao Cong Ren. "Research on Fractal Permeability Model for Cold-Pressed Oil Cake". Advanced Materials Research 781-784 (settembre 2013): 1607–13. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.1607.

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Aiming at cold-pressed oil cakes of linseed and sunflower seed, the pore fractal characteristics of microstructures have been studied. By combining Hagen-Poiseuille equation with fractal theory, a fractal permeability model for oil cake has been developed. The permeability of linseed and sunflower seed cakes under cold-pressed condition has been measured. It was found that the relative average errors are 12.8% and 16.8% for the soybean cake and sunflower seed cake respectively by comparing the result from the model calculation and experiment.

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34

Szemruch, Cyntia Lorena, Federico García, Sebastian Zuil, Christian Teysseire, Juan P Renzi, Miguel A Cantamutto, Santiago Renteria e Deborah P Rondanini. "Dynamics of Dry-Down in Seed, Head and Stalk from Sunflower Genotypes Sprayed with Chemical Desiccants After Physiological Maturity". Turkish Journal of Agriculture - Food Science and Technology 7, n. 2 (21 febbraio 2019): 192. http://dx.doi.org/10.24925/turjaf.v7i2.192-201.2093.

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Abstract (sommario):

Chemical desiccation can advance the sunflower harvest time. Paraquat has been extensively used, but other less risky chemicals, as Carfentrazone and Saflufenacil, can rise as an alternative. Moisture levels of seed, head and the upper portion of stalk are all relevant for mechanical harvesting, but dry-down dynamics of each tissue is unknown. The aim was to study the dry-down dynamics of seed, head and stalk in sunflower genotypes sprayed with Paraquat, Carfentrazone and Saflufenacil after physiological maturity. Seven experiments were carried out in the field in Argentina (from 29 to 39º S) during 2014/2015 and 2015/2016. The genotypes used included hybrids and female inbred lines of both oil and confectionery types. The dry-down of sunflower plant was accelerated by desiccants with Paraquat, reducing seed and stalk moisture to a greater extent. The head moisture remained very high (>80 and 70%) during several days after application, without differences among desiccants and control. Dynamics of seed, head, and stalk moisture was not associated to vapor pressure deficit or meteorological conditions after chemical application. Loss of green color of leaves was not a reliable indicator of seed dry-down dynamics. Seed germination was not affected by chemical desiccation on either oil-type or confectionery female plants. Under broad conditions of these experiments, the Paraquat was effective for seeds/grains and stalks drying in both sunflowers hybrids and inbred lines. The slowly drying of heads makes it necessary to continue investigating with new doses and combinations of desiccants to ensure an optimal harvest. Desiccants were safe for seed germination, which benefits their usefulness in the seed industry.

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35

Abdelsatar, Mohamed Ali, Tamer Hassan Ali Hassan e Mahrous Abd El-Baset Attia. "Stability some sunflower genotypes across divergent environments". Helia 43, n. 72 (27 agosto 2020): 33–49. http://dx.doi.org/10.1515/helia-2020-0002.

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Abstract (sommario):

AbstractSimultaneously identify superior performing in terms of seed yield and seed oil content and broad adaptation across a wide range of different environments is an important target for sunflower breeder. So, 10 sunflower genotypes were evaluated across the eight various environments created by sowing at four locations i. e. Kafr El Hamam/ Sharkia, Shandaweel /Sohag, Tag El Ezz/ Dakahlia and Al Arish/ North Sinai Agricultural Research Stations, Agricultural Research Center (ARC), Egypt during the two successive summer seasons 2018 and 2019 using randomized complete block designs with four replications in each environment. Results showed that mean squares due to environments, genotypes and their interaction were highly significant for seed yield and seed oil content. Most stability approaches revealed that high performing stable genotypes were L240 for seed yield and Sakha 53, L110 and L235 for seed oil content under divergent environments. Hence, these four stable sunflower genotypes could be behaved as good breeding materials stock for sunflower improvement.

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36

Hossain, Mohammad Ismail, Shaon Afroz, Mahanambrota Das, Md Mojammel Haque, M. Serajul Islam e Lilly Lim Camacho. "Value chain analysis of sunflower in coastal areas of Amtali upazila of Barguna district". Journal of the Bangladesh Agricultural University 17, n. 2 (28 giugno 2019): 244–50. http://dx.doi.org/10.3329/jbau.v17i2.41989.

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Abstract (sommario):

Sunflower is an important oil seed crop which is well fitted in Robi season of the coastal areas of Bangladesh. This study focused on sunflower value chain map, value addition, value chain governance and institutional linkages, and stakeholders and their roles and responsibilities in value adding process of sunflower. A total of 60 respondents were interviewed by using pretested questionnaire. A combination of purposive and snowball sampling techniques was used to select the respondents. Descriptive analytical technique was used to achieve the objectives. The study found that farmers were hardly engaged in sunflower marketing activities. The value chain map comprised of collectors/assemblers, processors, wholesalers and retailers. On an average, total costs (production and marketing) incurred by the farmers were Tk. 11,986.30/acre (100 decimals) of sunflower. Assemblers received a total gross margin of Tk. 588/100 kg of sunflower seeds. At wholesale node the total gross margin was found to be Tk. 209/100kg of sunflower seeds. It was observed that processor received gross margin of Tk. 878. The processors were the pivotal point for the sunflower oil in the study area. The findings revealed that 40% of the total sunflower seed productions were sold by farmers to chain actors in while the remaining 60% was left for own consumption. It was also found that there was certain arrangements of producers and traders in case of production and marketing of sunflower. The main business challenge in sunflower production is scarcity of quality seed and the marketing challenge is fluctuation of prices. Thus, policy should be guided to supply quality seeds and maintain the stable price of sunflower. J. Bangladesh Agril. Univ. 17(2): 244–250, June 2019

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37

Abubakar, Hayatuddeen, Abubakar M. Hammari, Usman Adamu e Aisami Abubakar. "Biodiesel Production using Helianthus annuus (Sunflower) Seed Oil by Trans-Esterification Method". Bioremediation Science and Technology Research 8, n. 2 (31 dicembre 2020): 24–27. http://dx.doi.org/10.54987/bstr.v8i2.555.

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Biodiesel produced from sunflower seed oil is environmentally friendly, sustainable and feasible as an alternative to conventional diesel fuel. Sunflower seed oil biodiesel was produced through trans-esterification reaction using 200 g sunflower seed oil (SSO), 40g methanol and 0.8g sodium hydroxide (NaOH) catalyst at 55 â„ƒ reaction temperature and 120-minute reaction time. The experiment was carried out three times and average results evaluated. High yield of the biodiesel (88.31%) was obtained. The fuel property of the biodiesel product was determined by the American standard for testing and materials (ASTM) fuel tests. Some of the properties includes density (0.79 g/cm3), kinematic viscosity (3.59 mm2/s), dynamic viscosity (6.58x10-3 kgm-1s-1), water content (0.04% mass), acid value (0.36 mg KOH/g), flash point (159 Â°C) and pour point was found to be -19 Â°C. The results found to be within the range of American standard for testing and materials (ASTM), the fuel tests show that the biodiesel product from Sunflower seed oil can serve as an alternative source for diesel production.

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38

Şengül, Füsun. "A Case Study on Sunflower Seed Oil Industries Waste Characterization, Classification and Treatment". Water Science and Technology 22, n. 9 (1 settembre 1990): 241–48. http://dx.doi.org/10.2166/wst.1990.0088.

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Abstract (sommario):

The sunflower seed oil industry is one of the most important industrial sectors. As a part of the agro-industry, sunflower seed oil production makes a significant contribution to environmental pollution in Turkey. A lot of research studies are known to be performed on the characterization and treatment of olive oil production wastes in Turkey, but the nature, amount, waste loads and treatment of the wastewaters produced by sunflower seed oil industries have not been studied to a great extent. In this study, a typical sunflower seed oil refinery in the city of İzmir was selected as representative of this sector. Method of production is evaluated and the refinery is investigated for the characterization of its wastewaters. During the first part of the test program, quality of combined and separate raw effluents was investigated. Possible physical-chemical treatment alternatives were studied using bench-scale laboratory models. Based on these studies, the most practicable and efficient combination of treatment operations and processes were pointed out. Waste segregation possibilities for minimization of wastewater quantities are investigated. In these investigations treated effluent quality has been evaluated with respect to the discharge parameters set by the present Turkish environmental legislation.

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39

Rezig, Leila, Zina Harzalli, Karima Gharsallah, Nesrine Mahfoudhi, Moncef Chouaibi, Hatem Majdoub e Imen Oueslati. "Microwave and Roasting Impact on Pumpkin Seed Oil and Its Application in Full-Fat Mayonnaise Formula". Foods 11, n. 18 (6 settembre 2022): 2732. http://dx.doi.org/10.3390/foods11182732.

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Abstract (sommario):

In this study, ‘Béjaoui’ Cucurbita maxima seeds variety were exposed to both microwave and roasting prior to oil cold press extraction. In addition, full-fat mayonnaise formula from untreated and treated pumpkin seed oils was prepared and assessed for their physical stabilities and bioactive properties in 28-day storage at 25 ± 1 °C. A mayonnaise sample prepared with unrefined sunflower seed oil served as a control. The results showed that the microwave pretreatment of seeds greatly enhanced the oxidative stability of the pumpkin seed oil, which increased from 3 h 46 min ± 10 min in the untreated sample to 4 h 32 min ± 14 min in the microwave cold press pumpkin seed oil. The sterol content increased from 4735 ± 236.75 mg/kg oil in the untreated cold press pumpkin seed oil to 5989 ± 299.45 mg/kg oil and 7156 ± 357.8 mg/kg in the microwave cold press pumpkin seed oil and the roasted cold press pumpkin seed oil, respectively. The mayonnaise prepared with microwave cold press pumpkin seed oil exhibited the lowest creaming index and was more stable to droplet growth when compared to the other mayonnaise samples. All mayonnaise samples prepared with pumpkin seed oils exhibited higher total phenolic contents and antioxidant activities during storage when compared to the mayonnaise sample prepared with unrefined sunflower seed oil. Among pumpkin seed oil mayonnaise samples, the highest values were, however, observed in the one prepared with microwave cold press pumpkin seed oil. Thanks to its high nutraceuticals, the latter could be confidently regarded as a natural fat substitute for commercial stable vegetable oils mayonnaise type emulsions.

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40

Salem, A., A. Omar e M. Ali. "Various responses of sunflower genotypes to water stress on newly reclaimed sandy soil". Acta Agronomica Hungarica 61, n. 1 (1 marzo 2013): 55–69. http://dx.doi.org/10.1556/aagr.61.2013.1.6.

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Abstract (sommario):

Water stress is a severe limitation for crop growth especially in arid and semi-arid regions of the world, as it has a vital role in plant growth and development at all growth stages. The aim of the present study was to evaluate the differential responses of twelve sunflower genotypes to three levels of water supply and select the most suitable one for such conditions. Two field experiments were conducted under adequate (7140 m3/ha), moderate (4760 m3/ha) and severe (2380 m3/ha) water regimes to evaluate the chlorophyll index, transpiration rate, leaf water content, plant height, head diameter, seeds/head, 1000-seed weight, seed and oil yield of the genotypes. Moderate and severe levels of drought had a significant impact on the transpiration rate, leaf water content, yield-contributing characters and oil yield of all the sunflower genotypes. However, the sunflower genotypes showed different responses to the different water regimes. The highest seed and oil yields were attained in L990 and Giza 102 in the case of adequate water supplies, while L38 was the best under moderate and severe drought conditions. On the basis of the results, sunflower genotype L990 could be recommended for growing when adequate water supplies are available, and L38 under moderate and severe water regimes to obtain high seed and oil yields.

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41

Martini, S., e M. C. An. "Determination of wax concentration in sunflower seed oil". Journal of the American Oil Chemists' Society 77, n. 10 (ottobre 2000): 1087–93. http://dx.doi.org/10.1007/s11746-000-0171-9.

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42

Boukhchina, Sadok, Joseph Gresti, Habib Kallel e Jean Bézard. "Stereospecific analysis of TAG from sunflower seed oil". Journal of the American Oil Chemists' Society 80, n. 1 (gennaio 2003): 5–8. http://dx.doi.org/10.1007/s11746-003-0641-0.

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43

Baümler, Erica R., Guillermo H. Crapiste e Amalia A. Carelli. "Sunflower-Oil Wax Reduction by Seed Solvent Washing". Journal of the American Oil Chemists' Society 84, n. 6 (15 maggio 2007): 603–8. http://dx.doi.org/10.1007/s11746-007-1074-0.

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44

Marques, Silvio Romero, Christina A. Peixoto, Júlio Brando Messias, Alessandra Ribeiro de Albuquerque e Valdemiro Amaro da Silva Junior. "The effects of topical application of sunflower-seed oil on open wound healing in lambs". Acta Cirurgica Brasileira 19, n. 3 (giugno 2004): 196–209. http://dx.doi.org/10.1590/s0102-86502004000300005.

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Abstract (sommario):

PURPOSE: To demonstrate the effects of the use of sunflower seed oil on the treatment of skin wounds. METHODS: Eighteen male Saint Inês lambs were divided in 3 groups according to the pos-operative (7, 14 and 21 days). After antisepsis and local anestesia, two 4cm² wounds on each side of the thoracic region, close to the scapule were surgically produced. The experimental wounds were treated with sunflower seed oil, with high concentration of linoleic acid (LA), and the control ones with sterilized Vaseline. Biopsies of the pos-operative wounds tissue were performed on the 7th, 14th, 21st days and histologically evaluated. RESULTS: Topic application of sunflower seed oil accelerated healing process at the 7th and 21st days, reducing wound area and increasing wound contraction. Granulation tissue increased faster on treated wounds. The epidermis of the treated wounds was completely recovered when compared to control wounds. CONCLUSION: The topic use of sunflower seed oil accelerated the healing process, and it can be used as an alternative therapy on second intention wound healing.

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45

Wang, Kai Bao, Xing Fu Wang, Chao Yue, Rui Feng Wang e Zun Hong Zhao. "Structure Design and Simulation Analysis of Decladding Plant for Sunflower Seeds Based on Bionic Principle". Applied Mechanics and Materials 602-605 (agosto 2014): 619–22. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.619.

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Abstract (sommario):

The sunflower oil that has rich nutritional value is high-quality nutrition oil. The quality of oil products was impacted seriously by a lot of harmful substances that contained in sunflower seed shell. The characteristic of sunflower seeds are the kernel is smaller and the shell density is large. The shelling operation is quite difficult with the characteristic. The shelling devices for the sunflower seeds based on optimization design method and dynamics analysis is introduced in the paper. The shelling devices for the sunflower seeds can be used in the place of processing factory and individual workshop. The structure of shelling devices was designed with the 3d modeling software. In the research, the virtual prototype technology was used to simulate the kinematics and dynamics characteristics of the mechanical system. The feasibility of the design scheme of mechanical system was proved with the simulation analysis results. The equipment has advantages of the structure is compact, safe and reliable, easy to use. The research of the shelling devices for sunflower seeds can be regarded as the reference of the related research.

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46

Narwal, S. S., e D. S. Malik. "Response of sunflower cultivars to plant density and nitrogen". Journal of Agricultural Science 104, n. 1 (febbraio 1985): 95–97. http://dx.doi.org/10.1017/s0021859600043021.

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Abstract (sommario):

SummaryIn a 2-year study, sunflower oultivar EC 69874 produced greater leaf area than EC 68415, but gave similar grain yields. The former was superior in leaf area, head size and yield per plant but was inferior in 100-seed weight. The leaf area was greater at lower plant density (5·5 plants/m2), which resulted in higher 100-seed weight, number of seeds per plant and yield per plant than higher plant density (11·1 plants/m2). Plant density had no influence on the percentage of filled seeds or oil content. Application of nitrogen improved the leaf area, flowerhead size, percentage of filled seeds, 100-seed weight, yield per plant and grain yield up to 60 kg/ha but decreased the oil content.

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47

Bushnev, A. S., G. I. Orekhov, V. A. Kamardin, Yu V. Mamyrko, S. P. Podlesny e I. A. Pavelko. "Control of the volunteer plants of imidazolinone sunflower in oil flax sowings". Oil Crops 4, n. 192 (25 dicembre 2022): 70–78. http://dx.doi.org/10.25230/2412-608x-2022-4-192-70-78.

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Abstract (sommario):

The research was conducted in 2020-2022 to find effective ways of controlling the volunteer plants of imidazolinone-resistant sunflower in oil flax sowings, providing high biological and economic efficiency, crop yield, and seed quality on leached chernozem in natural and climatic conditions of the Western Ciscaucasia. We studied methods of chemical protection of oil flax with tank mixtures of herbicide combinations: anticotyledonous contact herbicide Basagran, WS and systemic herbicide Cleo, WDG, Sekator Turbo, OD, and graminicide Zellek-super, EC. We used established methods for field agronomic experiments with oil crops. Seeds of imidazolinone-resistant sunflower hybrid were evenly sown on the experimental plot to simulate the volunteer plants. The phytotoxicity of herbicides on sunflower plants was evaluated using a 9-point EWRC scale. The tank mixtures Basagran,WS (4 l/ha) + Zellek-super, EC (1.0 l/ha) and Basagran, WS (4 l/ha) + Sekator Turbo, OD (0.1 l/ha) + Zellek-super, EC (1.0 l/ha) do not provide ef-fective control of the volunteer plants and are not recommended for use. The composition Basagran, WS (4 l/ha) + Cleo, WDG (0.12 kg/ha) + Zellek-super, EC (1.0 l/ha) provides destruction of the volunteer plants, contributing to higher yield and oil content of seeds, but it is very expensive and decreases the laboratory germinating ability of flax seeds, so it cannot be used in industrial seed production. A tank mixture of Cleo, WDG (0.12 kg/ha) + Sekator Turbo, OD (0.1 l/ha) + Zellek-super, EC (1.0 l/ha) has lower cost, provides high herbicidal effectiveness against the volunteer plants of imidazolinone-resistant sunflower, contributes to obtaining a high yield, oil content and laboratory germination of oil flax seeds and is recommended for use both in industrial seed production and in the production of commercial seeds.

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48

Aboelkassem, Khaled Mohamed, Asmaa Abd-EL-Halime Ahmed e Mohamed Ali Abdelsatar. "Evaluation of some sunflower genotypes for agronomic traits and oil quality". Helia 44, n. 74 (25 marzo 2021): 43–57. http://dx.doi.org/10.1515/helia-2020-0027.

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Abstract (sommario):

Abstract The present investigation was carried out to evaluate agronomic performance and oil quality of seven sunflower genotypes at Shandaweel Research Station, Agricultural Research Center, Sohag, Egypt during 2018 and 2019 summer seasons. These genetic materials were sown in a randomized complete block design having three replications. Significant genetic variations among evaluated sunflower genotypes for agronomic traits and oil quality were observed. The superior sunflower genotypes were Line 120 for seed yield per hectare (3102.38 kg), Sakha 53 for seed oil content (44.63 %) and Line 125 for oil quality where it contained the highest proportion of unsaturated fatty acids (89.20 %). The phenotypic coefficients of variation were slightly higher than genotypic coefficients of variation for all studied traits. High heritability (exceeded 60%) and genetic advance as percent of mean (ranged from medium to high, exceeded 10%) was observed for most studied traits. Seed yield per plant positively correlated with plant height, stem diameter, head diameter, and 100-seed weight and most chemical traits at phenotypic and genotypic levels. Maximum phenotypic direct effects on seed yield per plant were observed for 100-seed weight, head diameter and total unsaturated fatty acids. While, the highest genotypic direct effect on seed yield per plant was observed for head diameter. Hence, most studied traits could be employed as selection criteria for improving evaluated sunflower genotypes.

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49

Mehrangiz, Ebrahimi-Mameghani, Irandoost Pardis e Pourmoradian Samira. "The Effects of Grape Seed Oil on the Cardiovascular Risk Factors in Overweight and Obese Women: A Double-Blind Randomized Clinical Trial". Current Topics in Nutraceutical Research 18, n. 3 (19 maggio 2019): 221–26. http://dx.doi.org/10.37290/ctnr2641-452x.18:221-226.

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Cardiovascular diseases are one of the major types of non-communicable diseases with increasing prevalence worldwide. Oil consumption is an important part of the modifiable nutritional risk factor of cardiovascular diseases. The present study aims to examine the effects of grape seed oil consumption against sunflower oil on lipid profiles, high-sensitivity C-reactive protein, and weight management among overweight and obese females. In the current randomized clinical trial, 39 overweight or obese women were randomly allocated into the grape seed oil and sunflower oil groups and completed the study successfully. Anthropometric parameters were measured every two weeks. Fasting serum lipid profiles and high-sensitivity C-reactive protein levels were measured at the beginning and at the end of the intervention. Dietary data were collected using 3 days of 24-hours dietary recall. The changes in anthropometric measures and nutrient intakes at the end of the study were not significant between the groups. Although lipid profiles improved significantly in both groups, only the changes of the low-density lipoprotein (25.9 ± 6.6 mg/dL vs. 8.63 ± 6.87 mg/dL) and high-density lipoprotein (5.35 ± 2.56 mg/dL vs. 1.73 ± 1.14 mg/dL) were significantly different between the grape seed oil and sunflower oil groups. The changes in the high-sensitivity C-reactive protein level in the grape seed oil vs. sunflower oil group were statistically significant (P = 0.03). Grape seed oil consumption seems to improve lipid biomarkers and reduce the risk of cardiovascular diseases in overweight and/or obese females.

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Milenkovic, Dragan, Milutin Milosavljevic e Aleksandar Bojic. "Ultrasound-assisted extraction of sunflower oil from the cake after sunflower seed pressing". Journal of Agricultural Sciences, Belgrade 63, n. 2 (2018): 195–204. http://dx.doi.org/10.2298/jas1802195m.

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The influence of ultrasound application on the extraction (UE) of the cake after sunflower seed pressing was studied. Three different solvents were used for extraction in the Soxhlet apparatus: n-hexane, petroleum ether and extraction petrol. Petrol for extraction showed the highest yield. It has been shown that the using of ultrasound improved the extraction kinetics in the initial period - washing, and in the second period - the diffusion of oil from the mass of the cake. The parameters of the non-stationary diffusion model with and without the use of ultrasound were k' = 0.039 min-1, k' = 0.026 min-1 and b' = 0.713, i.e. b' = 0.589, respectively. Oil yield was also slightly higher in the ultrasonically supported extraction.

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