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Application of two forms of silicon and their impact on the postharvest and the content of bioactive compounds in cucumber(Cucumis sativus L.)fruits

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BIOCELL 2022年第11期46卷 2497-2506页

作者： YOLANDA GONZÁLEZ-GARCÍA VALERIA FLORES-ROBLES gregorio cadenas-pliego ADALBERTO BENAVIDES-MENDOZA MARCELINO CABRERA DE LA FUENTE ALBERTO SANDOVAL-RANGEL ANTONIO JUÁREZ-MALDONADO Departamento de Botánica Universidad Autónoma Agraria Antonio NarroSaltillo25315México Maestría en Ciencias en Horticultura Universidad Autónoma Agraria Antonio NarroSaltillo25315México Centro de Investigación en Química Aplicada Saltillo25294México Departamento de Horticultura Universidad Autónoma Agraria Antonio NarroSaltillo25315México

The metabolic activity of the fruits continues even after harvest,which results in the loss of bioactive compounds,a decrease in the quality of the fruits,softening and browning,among other negative *** use of certain elements such as silicon can improve postharvest quality,since it is involved in the metabolic,physiological and structural activity of plants,moreover can increase the quality of the *** addition,nanotechnology has had a positive impact on crop yield,nutritional value,fruit quality and can improve antioxidant *** these reasons,the use of beneficial elements such as silicon in the form of nanoparticles can be a viable option to improve the characteristics of the *** the present study was evaluated the application of potassium silicate(125,250 and 500 mg L^(−1))and SiO_(2) nanoparticles(125,250 and 500 mg L^(−1))during the development of the *** results showed that the application of silicon(potassium silicate and silicon nanoparticles)increased the content of total soluble solids(up to 15.6%higher than control),titratable acidity(up to 38.8%higher than control),vitamin C(up to 78.2%higher than control),phenols(up to 22%higher than control),flavonoids(up to 64.6%higher than control),and antioxidant activity in lipophilic compounds(up to 56.2%higher than control).This study suggests that the use of silicon can be a good option to increase the content of bioactive compounds in cucumber fruits when they are applied during the development of the crop.

关键词： Fruit quality Nanotechnology Silicon nanoparticles Potassium silicate Antioxidant compounds Antioxidant capacity

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Influence of Surfactant and Salt Concentration on the Rheological Properties of Three Different Microstructures of Associative Polyelectrolytes Obtained by Solution Polymerization

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Journal of Modern Physics 2014年第14期5卷 1387-1396页

作者： Areli I. Velazquez-Garcia gregorio cadenas-pliego Claudia C. Rivera-Vallejo Enrique J. Jiménez-Regalado Centro de Investigación en Química Aplicada (CIQA) Saltillo México

The rheological properties of three different microstructures of hydrophobically modified alkalisoluble polymers (telechelic, multisticker and combined) in the presence of various concentrations of anionic surfactant and salt (NaCl) were investigated. Associative polymers containing both ionic sites and small number of hydrophobic groups were obtained, and their thickening properties in aqueous solutions, were investigated. Solution polymerization was used for obtaining the different polymers. Relationships between hydrophobe, sodium dodecyl sulfate (SDS) and NaCl concentration are proposed. Owing to the competition between attractive hydrophobic interaction and repulsive electrostatic interactions, such hydrophobically modified polymers exhibit various rheological behaviors in aqueous solutions, depending on microstructure of polyelectrolyte, SDS and NaCl concentrations.

关键词： Polymerization Associative Polyelectrolyte Rheology Surfactant and Salt Concentration

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