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Liliana Bárbara Sarduy-Pereira

Bio: Liliana Bárbara Sarduy-Pereira is an academic researcher from Royal Dutch Shell. The author has contributed to research in topics: Supply chain & Business. The author has an hindex of 2, co-authored 4 publications receiving 8 citations.

Papers
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Journal ArticleDOI
30 Jun 2019
TL;DR: In this article, the comportamiento ambiental and the potencialidades of aplicación of mecanismos de produccion mas limpios (PML) in una granja dedicada to the cria of cerdos in the Amazonia ecuatoriana were investigated.
Abstract: El objetivo de la investigacion fue analizar el comportamiento ambiental y las potencialidades de aplicacion de mecanismos de produccion mas limpios (PML) en una granja dedicada a la cria de cerdos en la Amazonia ecuatoriana. El estudio se realizo durante un ciclo completo de cria y consto de tres fases: reconocimiento, diagnostico y formulacion de alternativas de produccion mas limpia. Las herramientas empleadas fueron la revision ambiental inicial, los ecomapas, los analisis de flujos y analisis de costos e ingresos, a partir de las cuales se definieron las medidas de PML aplicables a las condiciones del lugar. Se evaluaron cinco opciones de mejora relacionadas con la alimentacion y el manejo del estiercol y efluentes. Las alternativas de manejo de estiercol presentaron los mejores resultados desde el punto de vista economico y ambiental. Asimismo, la opcion 2 (incorporacion de un sistema de lombricompostaje) presento el mayor valor actual neto (VAN) (USD 5696,94 en 5 anos) y tasa de interes de retorno (TIR) de 76,22%, superior a la tasa de interes de entidades bancarias (12%). En conclusion, la aplicacion de practicas y tecnologias enmarcadas en sistemas de PML puede mejorar en gran medida la eficiencia de utilizacion de las materias primas y la reduccion de los contaminantes solidos y liquidos. Sin embargo, aun existen muchos desafios en las pequenas y medianas empresas en Ecuador y es necesario la continua busqueda de estrategias factibles que potencien las actividades de los pequenos productores e impulsen el desarrollo sostenible de la region.

7 citations

Journal ArticleDOI
TL;DR: In this paper, the authors present a set of opciones for mas limpia (PML) in the context of cacao in Ecuador, with the aim of minimising the contaminación generated by the process of elaborating pasta de cacao.
Abstract: El cacao, es uno de los sectores economicos en Ecuador. El presente estudio tiene como finalidad realizar el diagnostico, proponer opciones de produccion mas limpia (PML) y evaluar indicadores de ecoeficiencia aplicables al proceso de elaboracion de pasta de cacao. Se analizaron las etapas del proceso, desde el diagnostico hasta la formulacion y evaluacion de alternativas de PML. Se propusieron opciones de mejora en el proceso relacionadas con el ahorro de electricidad, agua y gestion de residuos. El analisis de la viabilidad economica y ambiental muestra resultados favorables, la recuperacion de la inversion en mayoria de las opciones es inmediata o inferior a un ano y pueden contribuir a disminuir el consumo de electricidad, agua, y residuos solidos generados en un 13.2%, 18% y 99.7% respectivamente. Finalmente, se recomienda validar estas propuestas, y realizar investigaciones futuras sobre otras corrientes residuales de la actividad que puedan minimizar la contaminacion ambiental generada en el proceso de produccion de cacao en pasta.

6 citations

Journal ArticleDOI
TL;DR: In this article, the authors analyze the environmental performance and potentialities of applying cleaner production mechanisms (CP) in the Association of producers of fine aroma cocoa "Tsatsayaku" in Ecuador, and show that mucilage and cocoa husk generation are the main environmental problems of the process.
Abstract: Cocoa is one of the most important crops in Ecuador, destined for export to be used in making chocolate in other countries. The objective of this work was to analyze the environmental performance and the potentialities of applying cleaner production mechanisms (CP) in the Association of producers of fine aroma cocoa \"Tsatsayaku\". The CP tools used were the initial environmental review, ecomaps, and process analysis. The results show that mucilage and cocoa husk generation are the main environmental problems of the process. Two improvement options were proposed and evaluated to control and reduce process contamination. The analysis shows a B / C ratio of 1.38 and the Net Present Value is $ 36,001.37 with an Internal Rate of Return of 249.29%. Finally, the application of practices and technologies framed in CP systems can optimize the use of raw materials and reduce the solid and liquid contaminants generated.

4 citations

Journal ArticleDOI
TL;DR: In this paper , the authors evaluated the potential of implementing the circular economy in the pitahaya agri-food chain in Ecuador and found that the level of circular economy evaluated in the study was low (2.14 points out of 5).
Abstract: Over the last decade, the circular economy (CE) has attracted attention due to the current unsustainable model of production and consumption, which involves an increased resource use and depletion. Agri-food is one of the key sectors where action must be taken to ensure the transition to a more sustainable development model in line with circular economy principles. This study aims to evaluate the potential of implementing the circular economy in the pitahaya agri-food chain in Ecuador. The research was conducted from 2019 to 2021, during which a checklist was applied that included 91 items grouped into nine dimensions: source or supply of materials, design, manufacturing, economic circle, distribution and sales, consumption/use, 4R, remanufacturing, and sustainability. The level of the circular economy evaluated in the study was low (2.14 points out of 5). Therefore, improvements are required in the agri-food management of fruit cultivation and processing. Critical points were identified and strategies were proposed to increase competitiveness, improve environmental performance, and promote the implementation of the circular economy in this production chain. A final recommendation is to explore research on the concept of CE in the sector, mainly focused on the valorization of biomass as a contribution to the bioeconomy in order to contribute to the country’s growth within the context of sustainability.

1 citations

Journal ArticleDOI
06 Jul 2020
TL;DR: In this article, the main environmental impacts of the wastewater treatment plant construction for the Pindo Chico subsystem in the Puyo city were determined, and corrective measures in an environmental management plan have been proposed to mitigate, prevent and monitor the negative impacts they are generated.
Abstract: The growth of the population, industrialization, agricultural practices and urbanization increases the demand for water and, therefore, the amount of waste water generated. The purpose of this paper is to determine the main environmental impacts of the wastewater treatment plant construction for the Pindo Chico subsystem in the Puyo city. Baseline information was collected by checklists, and for the identification and evaluation of impacts, a network diagram was made and double-entry matrix structures based on the original Leopold system were used. Seven project activities and 12 environmental components were analyzed, a total of the 24 interactions were determined, of which 11 were categorized as significant and two very significant environmental impacts. The most affected component is the soil alteration, due to the vegetation cover removal, the ditches opening, the access routes creation, and the plant construction. Finally, corrective measures in an environmental management plan have been proposed to mitigate, prevent and monitoring the negative impacts they are generated.

1 citations


Cited by
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Journal ArticleDOI
TL;DR: It was observed that the Calilla variety showed greater growth in less time when applied 5% mucilage with respect to the variety ICA V-305, for which it was considered the best treatment to use as biofertilizer.
Abstract: The production of drained mucilage of beans of Theobroma cacao, T. grandiflorumand T. bicolorin wooden box was compared and then its possible use as biofertilizer was evaluated. T. cacaoshowed the highest production of drained mucilage (4.5 ml mucilage kg-1grain h-1) with contents of 11.18 mg P L.-1, 0.2% K and 0.08% N. Subsequently the growth of two varieties of Zea mays(ICA V-305 and Calilla) using drained mucilage of T. cacaowas characterized. The field experiment had five treatments (fertisun, control (without fertilizer), 5% mucilage, 10% mucilage and 15% mucilage) under a completely random design in divided plots. The agronomic response variables evaluated were: Absolute Growth Rate (AGR) and Relative Growth Rate (RGR). In the evaluation of AGR in the two varieties of Z. maysstudied, it was observed that the Calilla variety showed greater growth in less time when applied 5% mucilage with respect to the variety ICA V-305, for which it was considered the best treatment to use as biofertilizer. Considering the existence of weeds in the study site, which were only removed in the samplings at 13 and 21 days after seedling not clear tendency was observed in the RGR values for the two varieties of Z. maysevaluated.

6 citations

Journal ArticleDOI
TL;DR: In this paper, the authors present a set of opciones for mas limpia (PML) in the context of cacao in Ecuador, with the aim of minimising the contaminación generated by the process of elaborating pasta de cacao.
Abstract: El cacao, es uno de los sectores economicos en Ecuador. El presente estudio tiene como finalidad realizar el diagnostico, proponer opciones de produccion mas limpia (PML) y evaluar indicadores de ecoeficiencia aplicables al proceso de elaboracion de pasta de cacao. Se analizaron las etapas del proceso, desde el diagnostico hasta la formulacion y evaluacion de alternativas de PML. Se propusieron opciones de mejora en el proceso relacionadas con el ahorro de electricidad, agua y gestion de residuos. El analisis de la viabilidad economica y ambiental muestra resultados favorables, la recuperacion de la inversion en mayoria de las opciones es inmediata o inferior a un ano y pueden contribuir a disminuir el consumo de electricidad, agua, y residuos solidos generados en un 13.2%, 18% y 99.7% respectivamente. Finalmente, se recomienda validar estas propuestas, y realizar investigaciones futuras sobre otras corrientes residuales de la actividad que puedan minimizar la contaminacion ambiental generada en el proceso de produccion de cacao en pasta.

6 citations

Journal ArticleDOI
TL;DR: In this article, the authors analyze the environmental performance and potentialities of applying cleaner production mechanisms (CP) in the Association of producers of fine aroma cocoa "Tsatsayaku" in Ecuador, and show that mucilage and cocoa husk generation are the main environmental problems of the process.
Abstract: Cocoa is one of the most important crops in Ecuador, destined for export to be used in making chocolate in other countries. The objective of this work was to analyze the environmental performance and the potentialities of applying cleaner production mechanisms (CP) in the Association of producers of fine aroma cocoa \"Tsatsayaku\". The CP tools used were the initial environmental review, ecomaps, and process analysis. The results show that mucilage and cocoa husk generation are the main environmental problems of the process. Two improvement options were proposed and evaluated to control and reduce process contamination. The analysis shows a B / C ratio of 1.38 and the Net Present Value is $ 36,001.37 with an Internal Rate of Return of 249.29%. Finally, the application of practices and technologies framed in CP systems can optimize the use of raw materials and reduce the solid and liquid contaminants generated.

4 citations

Journal ArticleDOI
29 Dec 2017
TL;DR: In this paper, an assessment through sensory analysis and physico-chemical characterization of prepared infusions made of the cocoa husks, discarded during the roasting process to obtain cocoa paste, mixed with aromatic herbs was performed.
Abstract: In this study an assessment through sensory analysis and physico-chemical characterization of prepared infusions made of the cocoa husks, discarded during the roasting process to obtain cocoa paste, mixed with aromatic herbs was performed. Infusion of the husks from Cocoa Arriba (Theobroma cacao L.) was prepared mixed with 3 different varieties of dried herbs, including guayusa (Ilex guayusa Loes), lemongrass (Cymbopogon citratus (DC.) Stapf) and peppermint (Mentha piperita L.) in varying proportions, that sought appropriate considerations of quality and safety specifications demanded by consumers. An experimental design with 2 factors at 3 levels was applied, with varying percentages of husks (a0 : 80%, a1 :70%, a2 : 60%) and dried herbs (b0 : lemongrass, b1 : guayusa, b2 : peppermint), which accounted for a total of 9 treatments plus a control (100% husks). The assays were performed in triplicates. The cocoa husks had 9.78 ± 0.12% moisture, 5.37% lipids, a content of total polyphenolics of 2135 ± 10; 468 ± 10; 662 ± 10 and 977 ± 10 mg GAE (gallic acid equivalent) 100 g-1 sample in the cacao husk, lemongrass, guayusa and peppermint, respectively. A balanced incomplete block design was used for the sensory analysis and treatments were assessed by 18 semi-trained judges, implying five samples per judge, resulting into nine replicates for each treatment performed in duplicate. Sensory analysis included the evaluation of color, odor, flavor and acceptability, and the formulation best valued by the tasters was that containing 80% cocoa husks and 20% guayusa. This formulation had a moisture content of 9.42 ± 0.18%, a pH value of 6.64; soluble solids 0.4 °brix and acidity of 0.014% reported as citric acid, being microbiologically stable at 18 °C with a shelf-life of 148 days.

3 citations

Journal ArticleDOI
TL;DR: In this article , the authors established a conceptual model to understand the impact of Total Productive Maintenance (TPM) and Industry 4.0 (I4.0) on the transition of a circular economy (CE).
Abstract: PurposeThe purpose of this research is to establish a conceptual model to understand the impact of Total Productive Maintenance (TPM) and Industry 4.0 (I4.0) on the transition of a Circular Economy (CE). Also, the paper explores the combined impact of TPM, I4.0 and CE on the sustainability performance (SP) of manufacturing firms.Design/methodology/approachThe conceptual model is proposed using the dynamic capability view (DCV) and empirically validated by partial least squares-structural equation modelling (PLS-SEM) using 304 responses from Indian manufacturing firms.FindingsThe results suggest that I4.0 positively impacts TPM, CE and SP, also showing TPM's positive impact on CE and SP. In addition, CE has a positive influence on the SP of manufacturing firms. Furthermore, CE partially mediates the relationship between I4.0 and SP with TPM and SP. The study also identifies TPM, I4.0 and CE as a new bundle of dynamic capabilities to deliver SP in manufacturing firms.Originality/valueThe present research adds to the knowledge and literature on DCV by identifying the importance of CE in the settings of I4.0 and TPM, especially in the context of sustainability. Also, the current study offers a new set of dynamic capabilities and provides some significant future recommendations for researchers and practitioners.

2 citations