The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
R K Gupta - One of the best experts on this subject based on the ideXlab platform.
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aerodynamic properties of Sunflower Seed helianthus annuus l
Journal of Food Engineering, 2007Co-Authors: R K Gupta, Gopika Arora, Rajiv SharmaAbstract:The terminal velocity of Sunflower Seed of three cultivars namely NSFH-36, PSF-118 and SH-3322 was evaluated as a function of moisture content between 6.0% and 14.0% d.b. At 6.2% d.b. moisture content the average value of terminal velocity for NSFH-36, PSF-118 and Hybrid SH-3322 variety of Sunflower Seed were 2.93, 2.54 and 2.98 m/s respectively. In the moisture range from 6% to 14% d.b., the terminal velocity of NSFH-36, PSF-118 and Hybrid SH-3322 variety of Sunflower Seed increased from 2.93 to 3.28, 2.54 to 3.04 and 2.98 to 3.53 m/s respectively. The corresponding value of drag coefficient varied from 0.18 to 0.24, 0.20 to 0.31 and 0.17 to 0.40 respectively for moisture range from 6% to 14% d.b. It appears from statistical analysis that variation in moisture content as well as variety either individually or in combination (interaction) influences terminal velocity and drag coefficient significantly.
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fracture resistance of Sunflower Seed and kernel to compressive loading
Journal of Food Engineering, 2000Co-Authors: R K Gupta, S K DasAbstract:Abstract The fracture resistance of both a Sunflower Seed ( Helianthus annuus L.) and its kernel was measured in terms of average compressive force, deformation and energy absorbed per unit volume at rupture. Samples at various moisture contents were loaded in vertical and horizontal orientations. The force required for Seed hull or kernel rupture decreased as moisture content increased from 4% to 20% d.b. Seeds loaded in the horizontal orientation developed hull cracks at a lower level of force than those loaded in the vertical orientation. For the kernel, the trend was the opposite. The average compressive forces required to cause kernel rupture were substantially lower (13.4–8.5 N) than those required to rupture the Seed (65.2–35.3 N) in both orientations. The maximum deformations of the Seed at rupture were 1.34 and 1.46 mm under horizontal and vertical loading orientations, respectively, while for the kernel these values were 1.73 and 2.32 mm. Energy absorbed per unit volume at rupture increased with an increase in moisture content. The Seeds loaded in a vertical orientation absorbed more energy (144.7–222.9 J/m 3 ) prior to rupture than those loaded in the horizontal (95.2–184.2 J/m 3 ) orientation. Kernels loaded in a vertical orientation required less energy (18.1–54.3 J/m 3 ) to rupture than those loaded in the horizontal (38.9–65.8 J/m 3 ) orientation.
Rajiv Sharma - One of the best experts on this subject based on the ideXlab platform.
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aerodynamic properties of Sunflower Seed helianthus annuus l
Journal of Food Engineering, 2007Co-Authors: R K Gupta, Gopika Arora, Rajiv SharmaAbstract:The terminal velocity of Sunflower Seed of three cultivars namely NSFH-36, PSF-118 and SH-3322 was evaluated as a function of moisture content between 6.0% and 14.0% d.b. At 6.2% d.b. moisture content the average value of terminal velocity for NSFH-36, PSF-118 and Hybrid SH-3322 variety of Sunflower Seed were 2.93, 2.54 and 2.98 m/s respectively. In the moisture range from 6% to 14% d.b., the terminal velocity of NSFH-36, PSF-118 and Hybrid SH-3322 variety of Sunflower Seed increased from 2.93 to 3.28, 2.54 to 3.04 and 2.98 to 3.53 m/s respectively. The corresponding value of drag coefficient varied from 0.18 to 0.24, 0.20 to 0.31 and 0.17 to 0.40 respectively for moisture range from 6% to 14% d.b. It appears from statistical analysis that variation in moisture content as well as variety either individually or in combination (interaction) influences terminal velocity and drag coefficient significantly.
Emel Kuram - One of the best experts on this subject based on the ideXlab platform.
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Rheological, mechanical and morphological properties of acrylonitrile butadiene styrene composite filled with Sunflower Seed ( Helianthus annuus L. ) husk flour
Journal of Polymer Research, 2020Co-Authors: Emel KuramAbstract:The effect of Sunflower Seed husk flour amount on the rheological, morphological and mechanical properties of acrylonitrile-butadiene-styrene (ABS) terpolymer was determined in current research. Sunflower Seed husk flour was incorporated to pure ABS at various weight percentages (5, 10, 15 and 20 wt%). Tensile properties (strength, modulus and elongation at break), impact strength, flexural properties (strength, strain and modulus), morphological properties and melt flow index (MFI) were determined. It was found that Sunflower Seed husk flour was favourable for improving flexural and tensile modulus. Elongation at break, tensile strength, impact strength, flexural strain and flexural strength of ABS diminished with the addition of Sunflower Seed husk flour. However, the addition of Sunflower Seed husk flour caused an increment in MFI value in comparison to pure ABS. The more the amount of Sunflower Seed husk flour in ABS polymer was, the more the reduction in the impact strength, flexural strength and flexural strain were. Increasing Sunflower Seed husk flour contents in the composites increased flexural modulus and MFI. It was concluded that Sunflower Seed husk flour filled polymer composites were usable in applications where lower cost was desirable and some reduction in the mechanical properties were acceptable.
Biljana Skrbic - One of the best experts on this subject based on the ideXlab platform.
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the enrichment of wheat cookies with high oleic Sunflower Seed and hull less barley flour impact on nutritional composition content of heavy elements and physical properties
Food Chemistry, 2011Co-Authors: Biljana Skrbic, Jelena CvejanovAbstract:Abstract Cookies prepared with white or wholegrain wheat flours and substituted with high-oleic Sunflower Seed (10 g/100 g and 30 g/100 g supplementation levels) and hull-less barley flour (30 g/100 g and 50 g/100 g levels) were evaluated for nutritional properties, physical and sensory attributes. Sunflower Seed significantly increased the contents of Se, Zn, Mg, and Ca, as well as the contents of α-tocopherol and fat in cookies. The contents of Se, Cu, Fe, Zn and β-glucan were raised in cookies by barley supplementation. It was estimated that 100 g of barley and Sunflower Seed-supplemented cookies can meet about 18–49% of dietary reference intake (DRI) for Se. Both supplemented cookies were found not to pose a significant risk, with regard to excessive intakes of heavy elements (Pb, Cd, As, Hg). In addition, the supplementation with Sunflower Seed improved sensory properties of the cookies.
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nutritional and sensory evaluation of wheat breads supplemented with oleic rich Sunflower Seed
Food Chemistry, 2008Co-Authors: Biljana Skrbic, Bojana FilipcevAbstract:Abstract Wholegrain and refined (white) wheat breads were prepared with the addition of high-oleic Sunflower Seed at various levels (8%, 12%, 16% flour basis). The nutritive value of breads was determined by measuring the chemical composition, including the mineral content, the fatty acid composition (saturated, monounsaturated, polyunsaturated, linoleic and linolenic acids) and the contents of tocopherols (α-, β-, γ-, δ-). The obtained data were used to estimate the intakes of nutrients and compare them to the dietary reference intakes (DRIs). The breads made with the addition of Sunflower Seed were sensorially acceptable, containing significantly more tocopherols, fat, essential fatty acids, crude fibre, copper and zinc. It was estimated that wholegrain supplemented breads would contribute to the corresponding DRIs in the range 33.7–40.8% (adults) for copper and 4.7–18.4% (males), i.e. 6.4–25.3% (females) for zinc, 18.3–26.8% (males), i.e. 25.9–37.9% (females) for linoleic (omega-6) acid, 7.4–7.6% (males), i.e. 10.7–11.0% (females) for alpha-linoleic (omega-3) acid.
Nestor Raul Curvetto - One of the best experts on this subject based on the ideXlab platform.
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pyrolysis of Sunflower Seed hulls for obtaining bio oils
Bioresource Technology, 2015Co-Authors: Andres I Casoni, Nestor Raul Curvetto, Maximiliano Andres Bidegain, Maria Amelia Cubitto, Maria Alicia VolpeAbstract:Bio-oils from pyrolysis of as received Sunflower Seed hulls (SSH), hulls previously washed with acid (SSHA) and hulls submitted to a mushroom enzymatic attack (BSSH) were analyzed. The concentration of lignin, hemicellulose and cellulose varied with the pre-treatment. The liquid corresponding to SSH presented a relatively high concentration of acetic acid and a high instability to storage. The bio-oil from SSHA showed a high concentration of furfural and an appreciable amount of levoglucosenone. Lignin was degraded upon enzymatic activity, for this reason BSSH led to the highest yield of bio-oil, with relative high concentration of acetic acid and stability to storage.
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growth and productivity of different pleurotus ostreatus strains on Sunflower Seed hulls supplemented with n nh4 and or mn ii
Bioresource Technology, 2002Co-Authors: Nestor Raul Curvetto, D. Figlas, R. Devalis, S. DelmastroAbstract:Abstract The mycelial growth rates in lineal growth assay, yield, and production rate of five Pleurotus ostreatus strains were evaluated in response to different levels of Mn(II) and/or NH 4 + in a substrate containing Sunflower Seed hulls as a main energy and nutritional component. Each strain showed different basal values for mycelial growth rate and biological efficiency on Sunflower Seed-hull substrate. Adding growth limiting mineral nutrients increased the mycelial growth rate by 13–25%. Primordia initiation for the first flush appeared between day 24 and 28 and days to the second crop ranged from 39 to 51. Biological efficiency increased over control values and reached 60–112%, depending on the strain and the concentration of Mn(II) and NH 4 + . This study demonstrated the advantage of selecting the most productive P. ostreatus strains in a substrate formulated with Sunflower Seed hulls to provide the main energy and nutritional ingredients and supplemented with Mn(II) and/or NH 4 + .
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Sunflower Seed HULLS AS A MAIN NUTRIENT SOURCE FOR CULTIVATING GANODERMA LUCIDUM
2002Co-Authors: R. González Matute, D. Figlas, R. Devalis, S. Delmastro, Nestor Raul CurvettoAbstract:Sunflower Seed hull, an abundant and cheap by-product of the edible oil industry, was used as a substrate for growing Ganoderma lucidum in a synthetic log system. We evaluated: i) Mycelial growth rate on different formulations of supplemented maltyeast agar (MYA); ii) Mycelial growth in substrates of Sunflower Seed hull with the addition of malt or wheat bran; and iii) the biological efficiency and the production rate at the end of the first harvest. A significant increase in growth rate was achieved when the MYA media contained 10 g L -1 glucose plus 0.4% milled Sunflower Seed hulls. The substrate containing wheat bran showed a higher mycelial growth rate. Productivity of the substrate containing 5% malt was higher than those from other formulations. Sunflower Seed hull can be used as the main energy and nutritional source in the formulation of a substrate for the cultivation of G. lucidum, and the addition of 5% malt to the substrate improved the mushroom growth rate.
