Hector Samuel

Hector Samuel
Universidad del Cauca · Departamento de Agroindustria

Researcher,PhD En Ingeniería Con Enfasis En Alimentos

About

119
Publications
52,555
Reads
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444
Citations
Additional affiliations
January 2013 - December 2017
Universidad del Cauca
Position
  • Docente
Education
January 2001 - November 2005
Universidad del Valle (Colombia)
Field of study
  • Doctorado En Ingeniería Con Enfasis En Alimentosp
February 2000 - November 2003
Pontificia Universidad Javeriana
Field of study
  • Maestria En Educacion
February 1998 - November 1999
Universidad De Santander- Udes - Sede Cúcuta
Field of study
  • Especializacion En Docencia y Administracion Unive

Publications

Publications (119)
Article
The multiple applications of polymers have made them one of the most widely used materials and a serious source of environmental contamination; however, the forms of biodegradation of this type of materials are being arduously investigated and one of those is the living organisms that can use them as a source of food, as in the case of the Coleopte...
Article
Bio-based blended films produced from polylactic acid (PLA) and thermoplastic starch (TPS) were evaluated under soil conditions for four weeks (W). Degradation of the film was evaluated in addition to thermal, structural and morphological changes on the surface of the material. Structural changes were evident, where the TPS present in the film degr...
Article
Full-text available
Traditional packaging made from non-renewable compounds such as petroleum has a negative impact on the environment, which has led to a growing body of research on biodegradable packaging. This paper details the characterization of a biocomposite which was made from cassava bran, coffee husk, and water (BCCW). After this, a layer of polylactic acid...
Chapter
Full-text available
La crisis ambiental por la que atraviesa el planeta se ha derivado de dinámicas de consumo sumamente perjudiciales para el entorno. Entre éstas se encuentra el uso masivo de materiales plásticos derivados de petróleo, cuya degradación puede tardar cientos de años. Frente a esto, desde la comunidad científica e industrial se han buscado alternativas...
Article
Contamination caused by the accumulation of petrochemical-based plastics has reached worrying magnitudes and led to the development of biopolymers as an option to mitigate the problem. This work thus presents a bibliometric analysis of all that concerns the development of such bionanocomposite materials, using ScientoPy and SciMAT software to estab...
Article
Full-text available
Traditional packaging made from non-renewable compounds such as petroleum has a negative impact on the environment, which has led to a growing body of research on biodegradable packaging. This paper details the characterization of a biocomposite which was made from cassava bran, coffee husk, and water (BCCW), modified by the addition of polylactic...
Book
Sistematización de una experiencia desarrollada entre dos grupos d einvestigación, uno de ingeniería-Cytbia-y otro de ciencias sociales-Antropos, con la vinculación de dos organizaciones cafeteras de los depratamentos de Cauca y Huila (Colombia), para la apropiación y uso de un empaque biodegradable, orientado a atender una problemática ambiental a...
Article
Thermoplastic starch (TPS) offers an alternative to petrochemical-based plastics because as well as being a final product in itself, TPS can be used as a precursor for the production of new materials. In addition to high temperature and shear, the presence of plasticizers is essential in the TPS production process, to break the strong inter and int...
Article
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In the search for alternatives to materials such as expanded polystyrene, interest in the development of packaging derived from starch has grown, which represent challenges from a technological point of view due to the weaknesses they may present. Against this, the inclusion of raw materials such as flours can contribute to increasing its propertie...
Article
TPS/MA/PLA is a blend of thermoplastic starch (TPS) and polylactic acid (PLA) compatibilized by maleic anhydride (MA) that can be a substitute for petro-based plastics in certain applications. At the end of its life, this material must be properly disposed in treatment systems such as composting or anaerobic digestion. The biodegradability of TPS/M...
Article
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The analysis of the family context in rural communities can provide helpful insight to promote technology appropriation processes. For this study, the family context and its influence on the coffee tradition were investigated within the framework of a proposal to build knowledge and transfer technology. To address this aim, the construction of geno...
Chapter
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Green chemistry is a work tool that can be applied in different areas such as medicine, materials, polymers, food, organic chemistry, etc., since it was propounded in the early 2000´s. It has become a viable alternative for care, remediation and protection of the environment and has been implemented worldwide. In this book the twelve principles of...
Article
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In this study, amaranth starch was extracted by high-impact wet milling and its structural and thermal properties and the effect of NaOH and SDS concentrations on extraction yield were evaluated. The best condition was 55 g of starch/100 g of amaranth, with a decrease from 2.5 to 3.5 kJ/g using different milling energies. The decrease in the protei...
Article
Full-text available
Biogenerated polymers are of great interest in industry in general, due to the trend of reduced use of petroleum-derived materials. However, their development costs are high and the benefit is still low. Currently, biodegradable alternatives are available from biogenerated polymers approximately 10% of the plastics market. Its consumption is estima...
Article
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The aim of this study was to evaluate different formulations of a biodegradable black concentrate obtained from cassava starch and carbon black, on the mechanical properties, color, and water absorption of a film destined to the production of biodegradable bags for coffee seedlings. The modulus of elasticity, tensile strength and elongation propert...
Chapter
Full-text available
La formación en metodologías cualitativas, por parte de los estudiantes de ingeniería, puede brindarles las posibilidad de conocer enfoques como el etnográfico, en donde sepan reconocer las bondades que se pueden derivar de la complementariedad de la labor ingenieril con el trabajo con comunidades y la comprensión de sus problemáticas, a fin de pro...
Chapter
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En el capítulo se muestran algunos conceptos básicos relacionados con la química de los polímeros, mostrados desde nociones simples que permiten orientar a los lectores en este tema. Se inicia brindando una definición breve del término polímero, luego se muestran las reacciones de polimerización empleadas para obtener polímeros, se explica lo que e...
Article
Polylactic acid (PLA) and starch are compounds used in the manufacture of packaging to replace petroleum products as biodegradable and environmentally friendly materials. This study evaluated the structure and surface of a film manufactured by extrusion from cassava starch and PLA, which underwent a biodegradation process under compost conditions f...
Presentation
Presentación acerca del rol del desarrollo de procesos de construcción de ciencia y tecnología en entornos rurales y su aporte a la construcción de paz.
Article
Full-text available
This paper deals with the Delphi method, its origins and characteristics. The main aspect to address is to provide information to identify an adequate number of experts in the choice of topics in the applications of the Delphi method in foresight. For that purpose, one Delphi study was evaluated in the period 2012 - 2015 on priority technologies re...
Article
Full-text available
Surveillance technology is a vital tool for the development of research processes, which serves for better strategic decisions. For this reason the Cytbia group considers relevant the application of this type of research. The aim of this work is to study surveillance technology applied to rigid biodegradable packaging. For the analysis of informati...
Article
Surveillance technology is a vital tool for the development of research processes, which serves for better strategic decisions. For this reason the Cytbia group considers relevant the application of this type of research. The aim of this work is to study surveillance technology applied to rigid biodegradable packaging. For the analysis of informati...
Article
In this study, cow manure was evaluated as inoculum in the star-up of the dry thermophilic anaerobic digestion process (DTAD) of municipal solid waste (MSW). Start-up is the more complex stage in anaerobic digestion in which an appropriate and available inoculum is required. The start-up was separated in three stages: (1) inoculum acclimation, (2)...
Article
Full-text available
The present work relates the traditional methods used to analyze the physical quality of fish extruded food, such as hardness, durability, water stability, sinking speed, bulk density, oil absorption and loss capacity and porosity as methods for the control of Its production at an industrial level. The physical properties of the pellets are relevan...
Article
Full-text available
The present work relates the traditional methods used to analyze the physical quality of fish extruded food, such as hardness, durability, water stability, sinking speed, bulk density, oil absorption and loss capacity and porosity as methods for the control of Its production at an industrial level. The physical properties of the pellets are relevan...
Article
Full-text available
This paper proposes the ISA 88 standard as a tool to standardize a biodegradation test, through systematic documentation of tests, which contributes to the reproducibility and repetitividad of the method. This standard was applied to the ISO 15985 test; after the implementation of the standard, the process model was formed of 3 stages, 14 and 78 sh...
Article
Full-text available
Se usaron materiales compuestos biodegradables con importantes propiedades mecánicas a partir de la combinación de harina de yuca con fibra de fique. Antes de ser incorporada en la formulación, la fibra debe ser molida y tamizada, sin embargo, en esta última etapa solo se utiliza el 12,5% del producto de la molienda. Para mejorar el aprovechamiento...
Article
Full-text available
La modificación física de la harina de yuca mediante tratamientos térmicos, puede generar cambios significativos en las propiedades físico-químicas de matrices termoplásticas obtenidas a partir de ella, en la fabricación de empaques biodegradables. En ese sentido, el propósito de este estudio fue evaluar el efecto del método de pregelatinización de...
Article
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Grandes cantidades de espumas sintéticas son utilizadas como material de embalaje que al desecharse generan contaminación. Una solución para lo anterior son las espumas fabricadas a base de almidón, material biodegradable y abundante. El objetivo de la presente investigación fue estudiar el efecto de un plastificante (glicerina) y de un agente espu...
Article
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La incorporación de recubrimientos elaborados con colofonia en materiales compuestos biodegradables, fabricados con harina de yuca y fique, permite disminuir la absorción de agua y reduce los inconvenientes de estabilidad de estos materiales al ser expuestos a ambientes húmedos. No obstante, es probable que se afecte la capacidad de biodegradación...
Article
Full-text available
En la última década, las espumas a base de almidón se han convertido en sustitutos del poliestireno, mitigando el impacto ambiental negativo causado por este tipo de polímeros sintéticos no biodegradables. El objetivo de la presente investigación fue evaluar el comportamiento de la densidad aparente e índice de expansión radial siguiendo lo estable...
Article
Full-text available
Blends of thermoplastic starch (TPS) and polylactic acid (PLA) are promising as materials for biodegradable packaging development, however, these exhibit incompatibility problems so the use of coupling agents is necessary for their adhesion. The effect of extrusion temperature of polylactic acid and coupling agent content (CA) on the mechanical pro...
Article
Full-text available
Technological surveillance is intended as a tool to support decision making in organizations. For a research group is very important the study of the technological environment regarding progress, in issues related to the lines of the organization. In this study search equations were applied to establish trends in flexible films from starch and pol...
Article
Full-text available
El presente estudio se realizó en la feria especializada en la promoción de cafés especiales más importante de Colombia y América Latina, Expoespeciales 2015. Este evento integró toda la cadena de valor del café y ofreció un escenario de tendencias e innovaciones a nivel nacional e internacional. Por lo anterior-mente dicho, el objetivo fue evaluar...
Article
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entre los componentes y una distribución homogénea de las fibras en la matriz (Faruk et al., 2012). La fibra de fique es una fibra natural que puede actuar como refuerzo o relleno en materiales compuestos biode-gradables de harina de yuca (Navia y Villada, 2013a). A partir de harina de yuca gelatinizada mezclada con fibra de fique, empleando las te...
Article
Full-text available
Due to the current requirements in clean plastic materials, the project was conducted to study the effect of a masterbatch additive on mechanical properties (stress analysis), barrier (desiccant method), optical (CIELab and CIECh scale) of a polymer composed by cassava starch, polylactic acid (PLA) and grey masterbatch (MBG) and by using the blown...
Article
Full-text available
Large amounts of synthetic foams are used as packaging material, which when disposed generates pollution. One solution to the above are foams made from starch, biodegradable and abundant material. The objective of this research was to study the effect of a plasticizer (glycerin) and a blowing agent (citric acid) in compressibility and spring index...
Article
Full-text available
Antecedentes: Los problemas medioambientales generados por la disposición de materiales no biodegradables utilizados especialmente en el empacado de productos y servicios de alimentos, han llevado a la investigación y desarrollo de materiales biodegradables con características que permitan su uso a escala comercial. Uno de los procesos convencional...
Article
Full-text available
Antecedentes: El uso de bolsas de polietileno en la etapa de vivero del cultivo de diversas plantas, se ha convertido en un problema difícil de manejar debido a que no posee la capacidad de degradarse después de su uso, como alternativa se presentan los materiales biodegradables elaborados a partir de almidón termoplástico de yuca (TPS) combinados...
Article
Full-text available
Background: There are scientific advances of the use of natural polymers in all industries and the benefits that cassava starch packaging presents in lieu of packaging derived from petroleum. There are alternatives emerging to address the use of natural materials in coatings for fruits and vegetables in order to preserve postharvest characteristics...
Article
Background: The environmental problems generated by the disposal of non-biodegradable materials especially used in the packaging of food products and foodservices, have led to research and development of biodegradable materials with characteristics that enable its use on a commercial scale. One of the most used conventional processes for manufactur...
Article
Full-text available
Background: In the last 10 years has increased the use of biodegradable plastics as an alternative to mitigate the environmental problems generated by synthetic plastics derived from petroleum. A renewable and economic used to make biodegradable plastics raw material is starch. The starch to be mixed with a plasticizer and subjected to high tempera...
Article
Full-text available
Background: The use of polyethylene bags in the nursery stage of growing various plants, has become a difficult problem to manage because it lacks the ability to degrade after use, as alternative biodegradable materials made from present cassava termoplastic starch (TPS) combined with polylactic acid (PLA). However, there is a need to assess the me...
Article
Full-text available
Background: From cassava flour, combined with fique fiber, can be made composite matrices that can replace traditional plastics materials in the manufacture of packaging. However, the trend towards high water absorption of the starch, the main component of flour, limits the applications of such matrices, these problems can be overcome by the develo...
Article
Full-text available
Background: The use of friendly materials with the environment is an issue that has been gaining interest due to customer requirements, public policy increasingly restrict the use of plastics from petrochemical sources because of the environmental impact generated. Among these materials, the shrink films are widely used in various industrial applic...
Article
Full-text available
The article presents the results of an analysis about the life cycle of a technology applied to three other technologies; related with the manufacturing of biodegradable gloves made out thermoplastic starch from cassava. Regarding the aforementioned technologies, search equations were formulated for the items and patents that were used in specializ...
Article
Full-text available
En el artículo se presentan los resultados del análisis del ciclo de vida de la tecnología aplicado a tres tecnologías relacionadas con la fabricación de guantes biodegradables a partir de almidón termoplástico de yuca, para estas tecnologías se construyeron ecuaciones de búsqueda para artículos y patentes que fueron utilizadas en bases de datos es...
Article
Full-text available
ANTECEDENTES: A partir de harina de yuca, combinada con fibra de fique, se pueden elaborar matrices compuestas biodegradables que pueden reemplazar materiales plásticos tradicionales en la fabricación de empaques. No obstante, la elevada tendencia hacia la absorción de agua que tiene el almidón, componente principal de las harinas, limita las aplic...
Article
Full-text available
The aim of this research was to evaluate the effect of processing temperature and concentration of the additive Tween 80 on the mechanical tensile properties of a flexible film made of cassava thermoplastic starch (TPS), polylactic acid (PLA) and polycaprolactone (PCL). An experimental design was carried out to determine the temperature profile and...
Article
Full-text available
Este trabajo tuvo como objetivo principal evaluar la producción de etanol de nue-ve levaduras aisladas y caracterizadas en el Valle con un testigo de un ingenio brasilero. La evaluación de las variables como temperatura, oxígeno, dióxido de carbono y etanol durante el proceso de fermentación se realizó con la ayuda del equipo Ecochamber y la técnic...
Article
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En el presente estudio se evaluó el efecto del proceso de gelatinización de harina de yuca sobre las propiedades mecánicas, térmicas y microestructurales de una matriz semirrígida moldeada por compresión. Inicialmente se determinaron las condiciones que permitieron alcanzar el mayor grado de gelatinización de la harina en suspensiones acuosas calen...
Article
Full-text available
A flexible film was obtained from a blend of cassava thermoplastic starch and polylactic acid, using maleic anhydride as coupling agent. For this, an experimental design with three factors was used: polylactic acid content, coupling agent content, and temperature profile of the blown extrusion. It was found that the three factors generated signific...
Technical Report
Full-text available
La Metodología Delphi fue elegida para llevar a cabo un estudio de previsión hasta 2032 en envases biodegradables y productos respetuosos con el medio ambiente. Para desarrollar el estudio, se elaboró un cuestionario con 196 variables clasificadas en 5 áreaz: Las innovaciones tecnológicas, materias primas para la producción de polímeros biodegradab...
Technical Report
Full-text available
Este paper es un insumo del estudio de prospectiva relacionada con empaques biodegradables y amigables con el medio ambiente al 2032. La intención es mostrar los resultados obtenidos a través del uso de herramientas tales como vigilancia tecnológica y curvas en S como soporte a la toma de decisiones. En el proceso dos bases de datos fueron usadas:...
Research
Full-text available
Delphi methodology was chosen to perform a foresight study up to 2032 in biodegradable packaging and environmentally friendly products. To develop the study, a questionnaire with 196 variables classified into 5 areas was elaborated: Technological innovations, commodities for biodegradable polymers production, commodities for biodegradable packaging...
Article
Full-text available
Introduction. The production and commercialization of avocado are growing, but there are postharvest handling inconsistencies that lead to poor product quality. This situation must be corrected in order to ensure the proper conservation by using appropriate techniques, such as the use of environmentally friendly edible coatings. Objective. We evalu...
Article
The development of biodegradable packaging materials for food is an issue of global concern, and therefore knowledge of its properties and characteristics from which its application can be estimated. In this work, bioplastics were prepared with gelatinized and ungelatinized flour from two cassava varieties MPER 183 and CM 4574-7, sisal fiber, and g...
Article
Full-text available
This paper is an input of "foresigth evaluation regarding biodegradable packaging and environmentally friendly, up to 2032". The intention is to show the results obtained through the use of tools such as intelligence technology and S-curves as supports for decision making. In the process, two databases were used: Scopus and Freepatentsonline. Based...
Article
Full-text available
The objective of this study was to evaluate the effect of process conditions on the production of biocomposites prepared by thermopressing technique, using cassava flour variety MPER 183, fique fiber and glycerol. The variables analyzed were: content of blowing agent, compression pressure and relative humidity on density, flexion stretch, and water...
Article
Full-text available
El desarrollo de materiales biodegradables destinados al empaque de alimentos es un tema de interés mundial, y en consecuencia el conocimiento de sus propiedades y características a partir de las cuales puede estimarse su aplicación. En este estudio, se elaboraron bioplásticos con harina gelatinizada y sin gelatinizar proveniente de dos variedades...
Article
Foodstuffs quality and safety are important issues involving packaging behavior in food preparing and storing processes. In this context, food legislation compliance increasingly demanding, concerns the knowledge of several key aspects of food-packaging systems. This article presents a review about main packaging materials currently used in the foo...
Book
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Como producto de los proyectos de investigación sobre el desarrollo de empaques biodegradables, llevados a cabo por los grupos CYTBIA (Ciencia y Tecnología de Biomoléculas de Interés Agroindustrial) y ASUBAGROIN (Aprovechamiento de Subproductos, Residuos y Desechos Agroindustriales), surge en el año 2009 el laboratorio de Reología y Empaques de la...