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Tianyi Liu - One of the best experts on this subject based on the ideXlab platform.
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properties of starch Palmitic Acid complexes prepared by high pressure homogenization
Journal of Cereal Science, 2014Co-Authors: Shuang Meng, Lifeng Wang, Tianyi LiuAbstract:Abstract Aqueous mixtures of defatted corn starch and Palmitic Acid were heated and high pressure homogenized in order to form amylose inclusion complexes. The effects of homogenization pressure (0–120 MPa) and Palmitic Acid concentration (0.5–8% based on starch content) on starch-Palmitic Acid complex formation as well as on complex index, X-ray diffraction, thermal properties, viscosity and particle size were investigated. Complex index increased with an increase in the amount of Palmitic Acid and homogenization pressure, and reached a maximum value (about 60%) when the fatty Acid content was 4% and the homogenization pressure was 100 MPa. X-ray diffraction patterns indicated the formation of V-helical complexes between starch and Palmitic Acid. This technology could prospectively be used in prepared starch-lipid complexes.
Shuang Meng - One of the best experts on this subject based on the ideXlab platform.
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properties of starch Palmitic Acid complexes prepared by high pressure homogenization
Journal of Cereal Science, 2014Co-Authors: Shuang Meng, Lifeng Wang, Tianyi LiuAbstract:Abstract Aqueous mixtures of defatted corn starch and Palmitic Acid were heated and high pressure homogenized in order to form amylose inclusion complexes. The effects of homogenization pressure (0–120 MPa) and Palmitic Acid concentration (0.5–8% based on starch content) on starch-Palmitic Acid complex formation as well as on complex index, X-ray diffraction, thermal properties, viscosity and particle size were investigated. Complex index increased with an increase in the amount of Palmitic Acid and homogenization pressure, and reached a maximum value (about 60%) when the fatty Acid content was 4% and the homogenization pressure was 100 MPa. X-ray diffraction patterns indicated the formation of V-helical complexes between starch and Palmitic Acid. This technology could prospectively be used in prepared starch-lipid complexes.
Fernando García-sánchez - One of the best experts on this subject based on the ideXlab platform.
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Solubilities of Palmitic Acid + Capsaicin in Supercritical Carbon Dioxide
Journal of Chemical & Engineering Data, 2017Co-Authors: Miguel G. Arenas-quevedo, Octavio Elizalde-solis, Abel Zúñiga-moreno, Ricardo Macías-salinas, Fernando García-sánchezAbstract:Solubilities of a solid binary mixture of Palmitic Acid and capsaicin in supercritical carbon dioxide (CO2) are reported in this work. Measurements were carried out in a semiflow apparatus at 308.15 and 328.15 K, and pressures ranging from 10 to 35 MPa. Experiments were replicated at least three times in order to check for the repeatability. The suitability of this apparatus was verified by determining the solubility of naphthalene and of an equimolar solid binary mixture constituted by naphthalene and phenanthrene in supercritical CO2. Solubilities of naphthalene are available in the literature and our measurements were found to be in good agreement with those vast data sets. Additionally, the method proposed by Mendez-Santiago and Teja to test the self-consistency of experimental data was used. Regarding the solid mixture naphthalene + phenanthrene, our results also agree with some literature data. The Palmitic Acid + capsaicin mixture was also prepared equimolarly. Solubility of Palmitic Acid was highe...
Yasuhiko Arai - One of the best experts on this subject based on the ideXlab platform.
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Measurement of solubilities of Palmitic Acid in supercritical carbon dioxide and entrainer effect of water by FTIR spectroscopy
Journal of Supercritical Fluids, 2003Co-Authors: Yoshio Iwai, Machiko Uno, Hirotaka Nagano, Yasuhiko AraiAbstract:Abstract The solubilities of Palmitic Acid in supercritical CO 2 and supercritical CO 2 +water were measured by using a static recirculation method combined with on-line Fourier transform infrared (FTIR) spectroscopy. Experiments were carried out at 15.0 MPa and 313.2 K. The peak of CH 2 symmetric stretching band for Palmitic Acid was used to measure the solubilities of Palmitic Acid. The solubility of Palmitic Acid in supercritical CO 2 saturated with water was found to be 16% larger than that in supercritical CO 2 . The interaction between Palmitic Acid and water was investigated, and the amount of interaction species was determined by using FTIR spectroscopy. The noticeable bands were the CO stretching bands for Palmitic Acid. It was also found that the solubility of Palmitic Acid in supercritical CO 2 increased with increasing molarity of water, because of the interaction between water and carboxyl group in Palmitic Acid.
Begoña Pérez-vich - One of the best experts on this subject based on the ideXlab platform.
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Molecular basis of the high-Palmitic Acid trait in sunflower seed oil
Molecular Breeding, 2016Co-Authors: Begoña Pérez-vich, L. Del Moral, Leonardo Velasco, B. S. Bushman, Steven J. Knapp, Alberto Javier Leon, José M. Fernández-martínez, Simon BerryAbstract:Sunflower (Helianthus annuus L.) seed oil with high Palmitic Acid content has enhanced thermo-oxidative stability, which makes it well suited to high-temperature uses. CAS-5 is a sunflower mutant line that accumulates over 25 % Palmitic Acid in its seed oil, compared to 5–8 % in conventional cultivars. The objective of this study was to investigate the molecular basis of the high-Palmitic Acid trait in CAS-5 through both candidate gene and QTL mapping approaches. An F2 population derived from the cross between CAS-5 and the conventional line HA-89 was developed. A 3-ketoacyl-ACP synthase II (KASII) locus on a telomeric region of linkage group (LG) 9 of the sunflower genetic map was found to co-segregate with Palmitic Acid content in this population. The KASII locus explained the vast majority of the phenotypic variation (98 %) of the trait. Two minor QTL affecting Palmitic Acid content were also found on the lower half of LG 9 and on LG 17. Additionally, QTL associated with other major fatty Acids (stearic, oleic, and linoleic Acid) were identified on LG 1, 6, and 10. This result may reflect untapped genetic variation that could exist among sunflower cultivars for genes determining fatty Acid composition. In addition to demonstrating the major role of a KASII locus in the accumulation of high levels of Palmitic Acid in CAS-5 seeds, this study stressed the importance of characterizing genes with minor effects on fatty Acid profile in order to establish optimal breeding strategies for modifying fatty Acid composition in sunflower seed oil.
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A new sunflower mutant with increased levels of Palmitic Acid in seed oil.
Helia, 2008Co-Authors: Leonardo Velasco, Begoña Pérez-vich, José M. Fernández-martínezAbstract:Sunflower oil with increased levels of saturated fatty Acids has important applications in food industry. The objective of this research was to develop novel variations with increased saturated fatty Acid levels by chemical mutagenesis. Seeds of four different accessions of Peredovik were treated with a solution of ethylmethane sulfonate. M2 seeds from a single M1 plant exhibited a large variation (5-29%) for Palmitic Acid content. The progenies of all selected M2 seeds showed again continuous ranges of variation (10-30%) for Palmitic Acid content. Similar continuous segregation was observed in some M3:4 and M4:5 families derived from high Palmitic half seeds (>25%), although other families had uniformly high Palmitic Acid content. Previous genetic studies of CAS-5, a high Palmitic Acid mutant which showed clear bimodal distributions in the M2 generation, concluded that the trait was genetically controlled by alleles at three loci. The different segregation patterns observed in NP-40, the new high Palmitic Acid mutant, suggested that it was genetically different from CAS-5.
