e-CUCBA Pub Date : 2023-06-29 DOI: 10.32870/ecucba.vi20.305

José Alberto Lucas-López, Olivia Rodríguez Alcántar, José Armando Arias García

{"title":"Identificación de levaduras aisladas del Tepache tradicional de Guerrero, México","authors":"José Alberto Lucas-López, Olivia Rodríguez Alcántar, José Armando Arias García","doi":"10.32870/ecucba.vi20.305","DOIUrl":"https://doi.org/10.32870/ecucba.vi20.305","url":null,"abstract":"Mexico has a great diversity of fermented beverages and Tepache, is a popular drink with Mixtec origins. Actually is prepared withpineapple, panela-sugarcane and water. The microbiology of the tepache is not known with exactitude, but it is important to knowthe species of yeast involved in the fermentation of the pineapple to know it and optimize its process. The aim of this study was todefine with the molecular technique PCR-RFLP the species that participate in the fermentation of the Tepache from Guerrero. Theresults obtained included a total of eight different restriction patterns of ITS 5.8S region of rDNA from 195 strains isolated fromyeast, corresponding to different species of yeasts. According to these restriction patterns, the yeast species involved in thefermentation of this beverage belong to Candida apicola, C. ethanolica, C. oregonensis, C. tropicalis, Pichia galeiformis,Rhodotorula graminis, Saccharomyces kluyveri and Zygosaccharomyces florentinus. Considering the frequency of the isolates fromspecies, the most abundant species wasC. apicola with 51.3% and Z. florentinus 24.1% of the isolates. According to these resultsTepache from Guerrero is partly fermented with non-Saccharomyces yeast of mature pineapples corresponding to the firstfermentative stage. In conclusion, in the Tepache from Guerrero a fermentation of the mature pineapples by yeasts of the non-Saccharomyces group corresponding to the first fermentative stage occurs, and a partially fermented beverage is obtained.","PeriodicalId":447849,"journal":{"name":"e-CUCBA","volume":"299 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123192961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Caracterización morfológica de semillas y eficiencia germinativa de Pinus patula var. longepedunculata y P. pseudostrobus var. oaxacana 帕图拉松(Pinus patula var. longepedunculata)和pseudostrobus var. oaxacana的种子形态特征及发芽效率

e-CUCBA Pub Date : 2023-06-29 DOI: 10.32870/ecucba.vi20.295

María Mercedes Cervantes-Machuca, Gerardo Rodríguez-Ortíz, J. R. Enríquez del Valle, Marcos Emilio Rodríguez-Vásquez

{"title":"Caracterización morfológica de semillas y eficiencia germinativa de Pinus patula var. longepedunculata y P. pseudostrobus var. oaxacana","authors":"María Mercedes Cervantes-Machuca, Gerardo Rodríguez-Ortíz, J. R. Enríquez del Valle, Marcos Emilio Rodríguez-Vásquez","doi":"10.32870/ecucba.vi20.295","DOIUrl":"https://doi.org/10.32870/ecucba.vi20.295","url":null,"abstract":"Pinus patula and P.pseudostrobus are species of great economic importance for different communities in the Oaxaca State due tothe wood quality and wide use in forest commercial plantations and reforestation. The objective of this research was to evaluate themorphological variation of seeds and their germination efficiency of two pine species under greenhouse conditions. In 2022,selected seeds of outstanding phenotypes was obtained from the Instituto Nacional de Investigaciones Forestales, Agrícolas yPecuarias (INIFAP); three seed samples of 10 g per species were made, the number of seeds was counted, and the equatorial (DE)and polar (DP) diameters and shape coefficient (CF=DE/DP) were measured; sowing was carried out in 49 cavity trays with amixture of mountain forest soil, vermiculite®, agrolite® and Peat Moss® with a 4:1:1:2 ratio. Germination was counted daily andvigor indicators were determined: germinative energy (EG), energy period (PE), germinative speed (VG) and germination speedindex (IVG). Data were analyzed using t-Student tests and regression analysis (α=0.05) in the SAS program. Including days aftersowing (DDS) in the model, we found that between 78 and 84 % of the existing variation in the percentage of accumulatedgermination was explained in both species. P.pseudostrobus presented more spherical (CF=0.41) and heavier seeds (24.27 mg)with an energy period of 69 % at 22 DDS; on the other hand, P.patula has elongated (CF=0.31) and light seeds (8.20 mg) with agreater energy period of 83% at 20 DDS. Both species germinate after 15 days; however, P.patula has a higher germination rateand a higher germination percentage, it is necessary to use germplasm from outstanding phenotypes to guarantee the reproductiveefficiency of the seed and subsequent seedling quality.","PeriodicalId":447849,"journal":{"name":"e-CUCBA","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126049055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diseño de un prototipo de máquina peletizadora del mezquite dulce para la alimentación del ganado vacuno y porcino 用于牛和猪饲料的甜玉米颗粒机原型设计

e-CUCBA Pub Date : 2023-06-29 DOI: 10.32870/ecucba.vi20.309

María Victoria Gómez-Águila, Abel Enríquez-Sánchez, Marcelino Benito Vásquez-López, Luis Tonatiuh Castellanos-Serrano, Alfredo Castellanos-Suárez, Marcelino A. Pérez-Vivar

{"title":"Diseño de un prototipo de máquina peletizadora del mezquite dulce para la alimentación del ganado vacuno y porcino","authors":"María Victoria Gómez-Águila, Abel Enríquez-Sánchez, Marcelino Benito Vásquez-López, Luis Tonatiuh Castellanos-Serrano, Alfredo Castellanos-Suárez, Marcelino A. Pérez-Vivar","doi":"10.32870/ecucba.vi20.309","DOIUrl":"https://doi.org/10.32870/ecucba.vi20.309","url":null,"abstract":"The present work consisted in designing a pelletizing machine for the production of animal feed from sweet mesquite. The designof the machine responded to the request of the clients, consisting of a small machine with a productivity of 640 kg day⁻¹in 8 hoursof work. During the machine design, the corresponding resistance calculations, sizing and selection of the appropriate materials forthe structure and other systems that make up the machine were made, such as: transmission system, transmission shaft, conditioningand pelletizing systems.The machine receives a pre-elaborated and crushed mixture, which is processed through the distribution, compression, cutting,unloading and packaging systems. The granulation system of the machine begins with the entry of food into the hopper, beingsubsequently distributed from the vanes towards the rollers in the compression system and traveling towards the face of a die. Therollers apply a compression force that forces the food to pass through the holes. Once the feed has been extruded, the pellets are cutby blades and stored at the bottom of the machine, where a container is placed. The average size of the pellet to be produced by theproposed design is: 10.55 mm in length with a diameter of 4.13 mm.","PeriodicalId":447849,"journal":{"name":"e-CUCBA","volume":"14 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125991385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rendimiento y componentes del rendimiento en maíz (Zea mays L.) nativo bajo condiciones de inundación 洪水条件下本地玉米(Zea mays L.)的产量及产量组成部分

e-CUCBA Pub Date : 2023-06-29 DOI: 10.32870/ecucba.vi20.299

J. A. S. Escalante Estrada, Yolanda Isabel Escalante Estrada, Cid Aguilar Carpio

引用次数: 0

Evaluación del efecto rizogénico de productos orgánicos en dos tipos de sustrato en esquejes de hortensias (Hydrangea macrophylla) 绣球花(绣球花)两种基质中有机产品根生作用的评价

e-CUCBA Pub Date : 2023-06-29 DOI: 10.32870/ecucba.vi20.310

Martha Isabel Torres-Morán, Alejandro Velasco-Ramírez, Ana Paulina Velasco-Ramírez, José Pablo Torres-Morán, M. L. García-Sahagún

引用次数: 0

Microbiota bacteriana cultivable del erizo de mar Hesperocidaris asteriscus, habitante de la zona mesofótica superior del cañón submarino de los Arcos, Puerto Vallarta 巴亚尔塔港阿科斯海底峡谷上中光带海胆(Hesperocidaris asteriscus)的可培养细菌微生物群

e-CUCBA Pub Date : 2023-06-29 DOI: 10.32870/ecucba.vi20.306

Paola Berenice Hernández-Vázquez, Héctor Ocampo-Alvarez, Cristian Moisés Galván-Villa, E. Ríos-Jara, Amayaly Becerril-Espinosa

{"title":"Microbiota bacteriana cultivable del erizo de mar Hesperocidaris asteriscus, habitante de la zona mesofótica superior del cañón submarino de los Arcos, Puerto Vallarta","authors":"Paola Berenice Hernández-Vázquez, Héctor Ocampo-Alvarez, Cristian Moisés Galván-Villa, E. Ríos-Jara, Amayaly Becerril-Espinosa","doi":"10.32870/ecucba.vi20.306","DOIUrl":"https://doi.org/10.32870/ecucba.vi20.306","url":null,"abstract":"Marine organisms, such as sea urchins, harbor symbiotic bacteria that produce metabolites with antibiotic activity. Thesemetabolites can confer to the host a defense mechanism against pathogens, contributing to its ecological suitability, and can also beused for biotechnological purposes.Considering the above, the objective of this work was to isolate the culturable microbiota of the sea urchin Hesperocidarisasteriscus and analyze it in search of strains with antibiotic activity. The bacteria were isolated in four isolation media and theantibiotic activity was evaluated by growth inhibition in three pathogens: S. aureus, E. coli, and P. aeruginosa. As a result, 29strains with different colonial morphology were recovered and nine of these strains presented bioactivity against at least onepathogen. Four of these bioactive strains presented morphological attributes typical of the phylum Actinobacteria. It is concludedthat bioactive bacteria could contribute to the defense of the sea urchin, by being able to inhibit the growth of its pathogens.However, it is important to continue this line of research towards the search and characterization of these metabolites, since theycould be used for the treatment of pathogenic bacteria resistant to currently known drugs.","PeriodicalId":447849,"journal":{"name":"e-CUCBA","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125499633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Representatividad de los tipos de vegetación en las unidades de manejo para la conservación de la vida silvestre (UMA) en México 墨西哥野生动物保护管理单位(UMA)植被类型的代表性

e-CUCBA Pub Date : 2023-06-29 DOI: 10.32870/ecucba.vi20.292

Nelly Anahy Leal Elizondo, C. C. Cantú Ayala, J. U. Uvalle Sauceda, Eduardo Alanís Rodríguez, Andrés Eduardo Estrada Castillón, Arturo Mora Olivo, Carlos Alejandro Ramírez Martínez

{"title":"Representatividad de los tipos de vegetación en las unidades de manejo para la conservación de la vida silvestre (UMA) en México","authors":"Nelly Anahy Leal Elizondo, C. C. Cantú Ayala, J. U. Uvalle Sauceda, Eduardo Alanís Rodríguez, Andrés Eduardo Estrada Castillón, Arturo Mora Olivo, Carlos Alejandro Ramírez Martínez","doi":"10.32870/ecucba.vi20.292","DOIUrl":"https://doi.org/10.32870/ecucba.vi20.292","url":null,"abstract":"The method of analysis of gaps and conservation omissions (GAP) are tools to identify conservation gaps or areas ofunderrepresentation in the current reserve system. This study focused on evaluating the extent to which the management units forthe conservation of wildlife (UMA) contribute to conservation of biodiversity in Mexico. UMA in the country cover 37,000,000million ha, equivalent to 17.1% of the national territory, however, there are only geographical references for 1,761 UMA(9,803,319 ha = 5.05%) of which it was determined with the method of analysis of gaps and conservation omissions (GAP), howthese contribute to the conservation of the types of natural vegetation, of the VI series (INEGI, 2017). Other results indicate that theUMA are located, mainly, in sites with the presence of xerophilous scrubs, which constitute 46.9% (45,182,741 ha) of the country'sprimary vegetation with 10 vegetation categories. If the UMA are considered as elements equivalent to the Natural Protected Area(ANP) in the conservation of biodiversity, they would cover 9 categories of vegetation that are conservation omissions in the ANPnetwork. However, they would not include 16 categories of secondary vegetation, which are both conservation gaps in the currentANP network; which represents a conservation gap at the national level of 72,891 ha (0.17%). However, to contribute to theconservation of biodiversity, the management of both conservation instruments must be improved.","PeriodicalId":447849,"journal":{"name":"e-CUCBA","volume":"35 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133890060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Análisis de riesgos para el diseño de arquitectura multilenguaje de un módulo mini-PFAL (Plant Factory with Artificial Lighting) con enfoque de Ingeniería de Software 基于软件工程方法的mini-PFAL模块(人工照明工厂)多语言架构设计的风险分析

e-CUCBA Pub Date : 2023-06-29 DOI: 10.32870/ecucba.vi20.296

L. T. Castellanos Serrano, María Victoria Gómez Águila, José Alfredo Castellanos Suárez

{"title":"Análisis de riesgos para el diseño de arquitectura multilenguaje de un módulo mini-PFAL (Plant Factory with Artificial Lighting) con enfoque de Ingeniería de Software","authors":"L. T. Castellanos Serrano, María Victoria Gómez Águila, José Alfredo Castellanos Suárez","doi":"10.32870/ecucba.vi20.296","DOIUrl":"https://doi.org/10.32870/ecucba.vi20.296","url":null,"abstract":"The Plant Factory are technologies that have begun to be detonated since 1980 and over the years have evolved in anamazing way, providing technological tools that boost their capabilities such as Big Data, IoT, ubiquitous computing,among others. The software that operates the control algorithms for the operation of the controlled microenvironmentstations, is an essential core part for its optimal operation, thus the tools for the timely administration of the softwaredesign are key agents to guarantee a timely development of the interfaces. The present work exposes the case study ofthe risk analysis for a mini PFAL module, where the requirements analysis is established, exposition of the technicalresults of the PFAL system achieved, identification of the project problem, risk management process, process riskprojection; and finally, with the help of scatter and superimposition graphs, the latent risks of the system that areproposed to be assessed for the success of the project with a view to being part of a risk mitigation, monitoring andmanagement plan (MMMR) in future phases are concluded.","PeriodicalId":447849,"journal":{"name":"e-CUCBA","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123929234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fenología reproductiva e insectos polinizadores de Thelocactus bicolor (Galeotti ex Pfeiff.) Britton & Rose, en tres localidades de Nuevo León y San Luis Potosí, México

e-CUCBA Pub Date : 2022-12-22 DOI: 10.32870/ecucba.vi19.263

Erick Raymundo Pérez Silva, C. C. Cantú Ayala, J. U. Uvalle Sauceda, F. G. González Saldívar, Edmar Meléndez Jaramillo

{"title":"Fenología reproductiva e insectos polinizadores de Thelocactus bicolor (Galeotti ex Pfeiff.) Britton & Rose, en tres localidades de Nuevo León y San Luis Potosí, México","authors":"Erick Raymundo Pérez Silva, C. C. Cantú Ayala, J. U. Uvalle Sauceda, F. G. González Saldívar, Edmar Meléndez Jaramillo","doi":"10.32870/ecucba.vi19.263","DOIUrl":"https://doi.org/10.32870/ecucba.vi19.263","url":null,"abstract":"The reproductive phenology of Thelocactusbicolor (Galeotti ex Pfeiff.) Britton & Rose, in addition to monitoring the insects thatinteracted with the flowers of this plant, located in the Botanical Garden Efraím Hernández Xolocotzi located in Linares, NuevoLeón, and in two nurseries for rescued plants located in Guadalcázar, San Luis Potosí, was registered. The study was carried out in2020, selecting and marking ten individuals located in 1 m², to evaluate the presence of their phenological stages (immature flower,intermediate flower, mature flower, immature fruit, ripe fruit, fruit in dispersion) through fortnightly sampling for a year,registering the activity and time in which arthropods interacted with the flowers of this cactus. The cacti began flowering in themonths of January and February at the three study sites. The mature flower stage only appeared in the Guadalcázar localitiestherefore, no insects were captured at the site located in Nuevo León. The Jacard similarity index showed a 50% of similaritybetween the registered arthropods of the Guadalcázar sites","PeriodicalId":447849,"journal":{"name":"e-CUCBA","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125691472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluación remota de la recuperación de la vegetación afectada por incendios forestales 受森林火灾影响的植被恢复的远程评估

e-CUCBA Pub Date : 2022-12-22 DOI: 10.32870/ecucba.vi19.281

J. G. Flores-Garnica, A. G. Flores-Rodríguez, Refugio Ramón Rivera-Leyva, Fernando Arellano-Martín, Francisco E. Ursúa-Guerrero, Felipe Ángel Omar Ortiz-Moreno, David Gutierrez-Carbonell

{"title":"Evaluación remota de la recuperación de la vegetación afectada por incendios forestales","authors":"J. G. Flores-Garnica, A. G. Flores-Rodríguez, Refugio Ramón Rivera-Leyva, Fernando Arellano-Martín, Francisco E. Ursúa-Guerrero, Felipe Ángel Omar Ortiz-Moreno, David Gutierrez-Carbonell","doi":"10.32870/ecucba.vi19.281","DOIUrl":"https://doi.org/10.32870/ecucba.vi19.281","url":null,"abstract":"Forest fires alter ecosystem processes and interactions. However, not all fires are the same, some are more severe than others,their impact on the vegetation varying according to the degree of severity. Therefore, it is important to have information thatallows sizing these impacts and supports the implementation of management strategies. However, monitoring the impact of fireis not an easy task, much less monitoring the response of the ecosystem over the years. Accordingly, the objective of this workwas to implement satellite technology to monitor the dynamics of forest cover recovery in areas impacted by forest fires, inorder to direct ecosystem restoration strategies. For this, the difference (before and after the fire) of the normalized burningratio (dNBR) was defined to determine the severity of a fire that occurred in the Sian Ka'an Biosphere Reserve in 2019.Subsequently, the dynamic of ecosystem recovery was evaluated, through the analysis of a series of images, using thefollowing indexes: a) Normalized Difference Vegetation Index (NDVI); b) Normalized burn ratio (NBR); c) NormalizedThermal Burnup Ratio (NBRT); d) Burned Area Index (BAI). A change in the reflectance value was observed in the burnedarea after the fire, which was restored over time. However, although the values show a recovery of the vegetation, in the fieldthe ecosystem is made up of different species from those that were present before the fire, therefore, by means of the spectralsignature of the vegetation, an image was generated showing the difference in the density of vegetation, which favors theunderstanding of the effects of fire and helps define priority areas to direct restoration actions.","PeriodicalId":447849,"journal":{"name":"e-CUCBA","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121956125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

e-CUCBA最新文献