RT Journal Article
T1 Biodegradable soy protein-based tablets for the controlled release of zinc
A1 Jiménez Rosado, Mercedes
A1 Castro Criado, Daniel
A1 Rubio Valle, José Fernando
A1 Pérez Puyana, Víctor
A1 Romero García, Alberto
AB Controlled-release systems are gaining interest in the horticultural industry to supply fertilizers to crops. However,their manufacturing process increases their cost, making its industrialization difficult. In this context,compaction of powders could be a low-cost and easily industrializable alternative. Thus, the main objective ofthis work was the manufacture of soy protein-based tablets with zinc (micronutrient) incorporated usingdifferent compaction parameters (pressure: 333, 416 and 777 MPa; post-manufacture heat treatment: 4 and24 h). Thus, the mechanical (dynamic compression tests) and microstructural properties (SEM and grain number)of the different tablets were evaluated to study the effect of pressure and temperature on them. In addition, wateruptake capacity and micronutrient release were studied. The latter has been analyzed with the use of twotheoretical models (Higuchi and Korsmeyer-Peppas) to evaluate which model is the most accurate for predictingthe zinc release of the different tablets. The results presented in this work demonstrate the great utility of soyprotein-based tablets for the controlled release of zinc. Thus, this process allows the incorporation of 116 g of Znin a kg product that can be released under control (9–10 h in water). These products have great industrial potentialdue to their ease of processing and properties, making them economically competitive.
PB Elsevier
SN 0926-6690
SN 1872-633X (electrónico)
YR 2024
FD 2024-04
LK https://hdl.handle.net/10272/23609
UL https://hdl.handle.net/10272/23609
LA eng
NO Jiménez-Rosado, M., Castro-Criado, D., Rubio-Valle, J. F., Perez-Puyana, V. M., & Romero, A. (2024). Biodegradable soy protein-based tablets for the controlled release of zinc. In Industrial Crops and Products (Vol. 211, p. 118261). Elsevier BV. https://doi.org/10.1016/j.indcrop.2024.118261
NO This study was financially supported by MCIN/AEI/10.13039/501100011033/FEDER, UE, through the project PID2021–124294OBC21.Authors gratefully acknowledge the financial support. Authors alsothank the postdoctoral contract of Víctor Manuel Pérez Puyana from theEuropean Social Fund/Junta de Andalucía (“Contratación de PersonalInvestigador Doctor”, PAIDI DOCTOR_Convocatoria 2019–2020) andthe predoctoral fellowship granted to José Fernando Rubio-Valle(PRE2019–090632) of MEFP (Spanish Government). Lastly, the authorsacknowledge the Microscopy service of CITIUS and “Departamento deFísica de la Materia Condensada” of Universidad de Sevilla for the accessto and assistance with their facilities.
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026