Aims and scope

Ingeniería Agrícola y Biosistemas (Agricultural and Biosystems Engineering; INAGBI) is a bilingual (Spanish and English) scientific journal published by the Universidad Autónoma Chapingo on a biannual basis. It offers professionals in agricultural and biosystems engineering a means of disseminating and discussing the results of unpublished research. In this sense, the journal’s aim is to disseminate the results of scientific research and technological developments related to biological systems and agricultural engineering.

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    Volume 13, Issue 1 January - June 2021   Creative Commons License

      
 

    13 January - June 2021  

   Creative Commons License

 
  
 
 
  • Preservative postharvest solutions in two varieties of tuberose (Polianthes tuberosa L.) native to Mexico: ‘Mexicano’ and ‘Perla’

  • Soluciones conservadoras en poscosecha en dos variedades de nardo (Polianthes tuberosa L.) nativas de México: ‘Mexicano’ y ‘Perla’

water consumption, relative fresh weight, quality, respiration, superoxide dismutase

10.5154/r.inagbi.2020.04.025

Received: 2020-04-19
Accepted: 2020-11-13
Available online: 2021-01-21
Pages:03-15

Introduction: ‘Perla’ and ‘Mexicano’ are varieties of tuberose grown in Mexico that have potential for commercialization and export; however, no preservative solutions have been evaluated to increase their shelf life.
Objective: To determine physical, physiological, and chemical changes that occur in postharvest tuberose when different preservative solutions are applied.
Methodology: Tuberose flower spikes of varieties ‘Mexicano’ and Perla, with two open basal flowers, were placed in preservative solutions (Crystal®, sucrose [Sac] + citric acid [CA] + hydroxyquinoline citrate [HQC] and ascorbic acid [AAsc]). A group of tuberose flower spikes was kept as control, and in all cases destructive and non-destructive variables were evaluated during postharvest.
Results: Relative fresh weight and water consumption increased with preservative solutions in both varieties. The appearance of the ‘Perla’ variety was excellent for 5 days with Crystal®. The ‘Mexicano’ variety had more open flowers with Crystal® and Sac + AC + HQC, while the ‘Perla’ variety had the same result with AAsc and Crystal®. Respiration in the Mexicano’ variety was high with Sac + AC + HQC, and in the case of ‘Perla’ variety, respiration was low with AAsc. The highest specific superoxide dismutase activity was detected with AAsc and Crystal® for ‘Perla’ variety.
Study limitations: The results are valid without previous applications of pulse or hydrating solutions in tuberose varieties evaluated.
Originality: This is the first study where the postharvest behavior of two Mexican tuberose varieties is evaluated in preservative solutions.
Conclusions: ‘Mexicano’ and ‘Perla’ varieties can use Crystal® and AAsc solutions to maintain the quality for longer time in vase.

Introduction: ‘Perla’ and ‘Mexicano’ are varieties of tuberose grown in Mexico that have potential for commercialization and export; however, no preservative solutions have been evaluated to increase their shelf life.
Objective: To determine physical, physiological, and chemical changes that occur in postharvest tuberose when different preservative solutions are applied.
Methodology: Tuberose flower spikes of varieties ‘Mexicano’ and Perla, with two open basal flowers, were placed in preservative solutions (Crystal®, sucrose [Sac] + citric acid [CA] + hydroxyquinoline citrate [HQC] and ascorbic acid [AAsc]). A group of tuberose flower spikes was kept as control, and in all cases destructive and non-destructive variables were evaluated during postharvest.
Results: Relative fresh weight and water consumption increased with preservative solutions in both varieties. The appearance of the ‘Perla’ variety was excellent for 5 days with Crystal®. The ‘Mexicano’ variety had more open flowers with Crystal® and Sac + AC + HQC, while the ‘Perla’ variety had the same result with AAsc and Crystal®. Respiration in the Mexicano’ variety was high with Sac + AC + HQC, and in the case of ‘Perla’ variety, respiration was low with AAsc. The highest specific superoxide dismutase activity was detected with AAsc and Crystal® for ‘Perla’ variety.
Study limitations: The results are valid without previous applications of pulse or hydrating solutions in tuberose varieties evaluated.
Originality: This is the first study where the postharvest behavior of two Mexican tuberose varieties is evaluated in preservative solutions.
Conclusions: ‘Mexicano’ and ‘Perla’ varieties can use Crystal® and AAsc solutions to maintain the quality for longer time in vase.

 
 
  • 3D computational fluid dynamics modeling of temperature and humidity in a humidified greenhouse

  • Modelación mediante dinámica de fluidos computacional 3D de temperatura y humedad en un invernadero con humidificación

modelos numéricos, ecuaciones de Navier-Stokes, ANSYS Fluent, simulación

10.5154/r.inagbi.2020.10.060

Received: 2020-10-13
Accepted: 2020-12-29
Available online: 2021-01-21
Pages:16-33

Introduction: Medium and low technology greenhouses use natural ventilation as a method of temperature and humidity control. However, at certain times of the year, this is insufficient to extract excess heat inside the greenhouse, so devices such as hydrophanes (humidifiers) have been implemented to reduce the temperature. It is necessary to know the behavior of temperature and humidity, since both factors influence the development of crops and, therefore, their yield.
Objective: To develop a computational fluid dynamics (CFD) model of a naturally ventilated zenithal greenhouse equipped with hydrophanes to understand the spatial and temporal distribution of temperature and humidity inside the greenhouse.
Methodology: The experiment was carried out in a greenhouse equipped with hydrophanes and grown with bell pepper. Temperature and humidity measurements were performed from March 7 to 25, 2014. The ANSYS Workbench program was used for the 3D CFD modeling.
Results: The CFD model satisfactorily described the temperature and humidity distribution of the greenhouse, with an error of 0.11 to 3.43 °C for temperature, and 0.44 to 10.80 % for humidity.
Limitations of the study: Numerical modeling using CFD is inadequate to model the temporality of the variables.
Originality: There are few studies that model humidity behavior with CFD and the use of hydrophanes in Mexico.
Conclusions: The CFD model allowed visualizing the distribution of temperature and air humidity inside the greenhouse.

Introduction: Medium and low technology greenhouses use natural ventilation as a method of temperature and humidity control. However, at certain times of the year, this is insufficient to extract excess heat inside the greenhouse, so devices such as hydrophanes (humidifiers) have been implemented to reduce the temperature. It is necessary to know the behavior of temperature and humidity, since both factors influence the development of crops and, therefore, their yield.
Objective: To develop a computational fluid dynamics (CFD) model of a naturally ventilated zenithal greenhouse equipped with hydrophanes to understand the spatial and temporal distribution of temperature and humidity inside the greenhouse.
Methodology: The experiment was carried out in a greenhouse equipped with hydrophanes and grown with bell pepper. Temperature and humidity measurements were performed from March 7 to 25, 2014. The ANSYS Workbench program was used for the 3D CFD modeling.
Results: The CFD model satisfactorily described the temperature and humidity distribution of the greenhouse, with an error of 0.11 to 3.43 °C for temperature, and 0.44 to 10.80 % for humidity.
Limitations of the study: Numerical modeling using CFD is inadequate to model the temporality of the variables.
Originality: There are few studies that model humidity behavior with CFD and the use of hydrophanes in Mexico.
Conclusions: The CFD model allowed visualizing the distribution of temperature and air humidity inside the greenhouse.

 

COretention and application frequency optimizes yield per gas used in hydroponic lettuce

Federico Hahn-Schlam;Edi Manqueiros;Juan José Aguilar;Homero Alonso;Abel Lorenzo-Cabrera;Rafael de la Cruz

10.5154/r.inagbi.2009.04.001

Received: 2009-04-25
Accepted: 2009-06-24
Available online: 2009-06-29

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Simultaneous three climatic variable predictions in a greenhouse

Raquel Salazar-Moreno;Abraham Rojano-Aguilar;Uwe Schmidt;Christian Huber

10.5154/r.inagbi.2009.05.013

Received: 2009-05-31
Accepted: 2009-06-24
Available online: 2009-06-15

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Mechanical properties and ripening of mango fruits (Mangifera indica L.) under axial compression

Artemio Pérez-López;Carlos Alberto Villaseñor-Perea;Verónica Crisanto-Martínez;J. Joel Corrales-García

10.5154/r.inagbi.2009.05.011

Received: 2009-05-28
Accepted: 2009-06-23
Available online: 2009-06-15

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Beans (Phaseolus vulgaris L.) nixtamalization optimization and development of new food PRODUCT

Paula Téllez-Téllez;Adriana Arellano-San Vicente;María Ofelia Buendía-González;Juan Velázquez-Mendoza;María Griselda Vázquez-Carrillo

10.5154/r.inagbi.2009.06.014

Received: 2009-06-03
Accepted: 2009-06-20
Available online: 2009-06-15

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Modeling of a modified atmosphere to preserve husk tomato (Physalis ixocarpa BROT.) fruits

Salvador Valle-Guadarrama;Adalberto Gómez-Cruz;Fabiola Cruz-Cruz;Armando Chan-Chi

10.5154/r.inagbi.2009.05.004

Received: 2009-05-15
Accepted: 2009-06-20
Available online: 2009-06-15

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Texture and microstructure of low-fat and low-cholesterol panela type cheeses: different methodologies

Consuelo Lobato-Calleros;Ivanhoe Lozano-Castañeda;E. Jaime Vernon-Carter

10.5154/r.inagbi.2009.05.009

Received: 2009-05-26
Accepted: 2009-06-25
Available online: 2009-06-15

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Tractional force of the plow subsoiler as a function of work width

Eugenio Romantchik-Kriuchkova;Ismael Sandoval-Assia;Noel Chávez-Aguilera;José Gaytán-Ruelas;Pedro Mayans-Céspedes

10.5154/r.inagbi.2009.05.007

Received: 25-05-2009
Accepted: 28-06-2009
Available online: 2014-06-30

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Gamma irradiation as a quarantine treatment on guava fruits (Psidium guajava L.) and changes in its quality

María del Rosario Justo-Gómez;Arturo Hernández-Montes

10.5154/r.inagbi.2009.05.006

Received: 2009-05-20
Accepted: 2009-06-29
Available online: 2009-06-15

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Analysis of guava (Psisium guajava L.) fruits under compression and its relation to physiological processes

José Antonio Yam-Tzec;Carlos Alberto Villaseñor-Perea;Eugenio Romantchik-Kriuchkova;Martín Soto-Escobar;Miguel Ángel Peña-Peralta

10.5154/r.inagbi.2009.05.003

Received: 2009-05-08
Accepted: 2009-06-30
Available online: 2009-06-15

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Land use change and runoff in the Huehuetan watershed

Juan Juárez-Méndez;Laura A. Ibáñez-Castillo;Samuel Pérez-Nieto;José Luis L. Arellano-Monterrosas

10.5154/r.inagbi.2009.07.016

Received: 2009-06-24
Accepted: 2010-04-14
Available online: 2010-06-12

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Tires pull force of a tractor in the 4X2 and 4x4 schemes when it makes a turn

Álvaro Morelos-Moreno;Eugenio Romantchik-Kriuchkova;José Gaytán-Ruelas;Carlos Alberto Villaseñor-Perea

10.5154/r.inagbi.2009.07.015

Received: 2009-06-07
Accepted: 2010-04-09
Available online: 2010-06-15

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Onion slices dehydration in a dryer with air dehumidification based on silica gel

Federico Hahn-Schlam;José Manuel Vargas-Sállago

10.5154/r.inagbi.2009.10.019

Received: 0000-00-00
Accepted: 0000-00-00
Available online: 2010-06-15

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