Revista Facultad Nacional de Agronomia Medellin最新文献

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Use of effective microorganisms and FitoMas-E® to increase the growth and quality of pepper (Capsicum annuum L.) seedlings 使用有效微生物和FitoMas-E®来提高辣椒(Capsicum annuum L.)幼苗的生长和质量
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-09-01 DOI: 10.15446/rfnam.v74n3.90588
Ramón Liriano González, Jovana Pérez Ramos, Yunel Pérez Hernández, Iraní Placeres Espinosa, Sonia Beatriz Jardines González, Sergio Luis Rodríguez Jiménez
{"title":"Use of effective microorganisms and FitoMas-E® to increase the growth and quality of pepper (Capsicum annuum L.) seedlings","authors":"Ramón Liriano González, Jovana Pérez Ramos, Yunel Pérez Hernández, Iraní Placeres Espinosa, Sonia Beatriz Jardines González, Sergio Luis Rodríguez Jiménez","doi":"10.15446/rfnam.v74n3.90588","DOIUrl":"https://doi.org/10.15446/rfnam.v74n3.90588","url":null,"abstract":"Los bioproductos agrícolas basados en microorganismos eficientes (EM) constituyen una alternativa viable para disminuir el uso de fertilizantes químicos, y tienen un efecto positivo sobre el crecimiento y desarrollo de las plantas. Este trabajo se realizó con el objetivo de evaluar el efecto de microorganismos eficientes (EM) y FitoMas-E® en la producción de plántulas de pimiento (Capsicum annuum L.), para lo cual se realizó un experimento en un jardín organopónico en el municipio de Matanzas, Cuba. Se estudiaron cuatro tratamientos: control (sin aplicación de los bio-productos), EM (4 mL m-2), FitoMas-E® (0.1 mL m-2) y EM (4 mL m-2)+ FitoMas-E® (0.1 mL m-2). Se estableció un diseño de bloques completamente al azar con tres repeticiones por tratamiento. Se realizó un análisis de varianza para determinar diferencias entre los tratamientos y la prueba de Rangos Múltiples de Duncan para la comparación entre las medias. Se evaluaron los indicadores altura de las plántulas (cm), número de hojas por plántula, diámetro del tallo (mm), longitud de la raíz (cm), el índice de esbeltez, peso fresco y seco foliar y de la raíz (g) y la relación parte aérea/raíz con relación al peso seco. La aplicación de EM y FitoMas-E® tuvo un efecto positivo sobre el crecimiento y la calidad de las plántulas de pimiento en semillero. El tratamiento 4 mostró los mejores resultados con relación a los indicadores morfológicos: altura de la planta (17.19 cm), número de hojas (6.01), diámetro del tallo (3.98 mm), longitud de la raíz (8.82 cm), así como en el peso fresco y seco de las hojas y de las raíces. La aplicación combinada de EM y FitoMas-E fue efectiva para estimular el crecimiento de la raíz y los órganos aéreos, manteniendo una relación parte aérea/raíz entre 1.28 y 2.5, lo cual es importante en función de obtener plántulas de pimiento con calidad.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89169301","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: 1
Grafting effect on photosynthetic activity and yield of tomato under a plastic house in Colombia 哥伦比亚塑料棚内嫁接对番茄光合活性和产量的影响
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-09-01 DOI: 10.15446/rfnam.v74n3.93102
Jamer Alexis Ramirez Jimenez, Paulo Eduardo Ribeiro Marchiori, Ó. Córdoba-Gaona
{"title":"Grafting effect on photosynthetic activity and yield of tomato under a plastic house in Colombia","authors":"Jamer Alexis Ramirez Jimenez, Paulo Eduardo Ribeiro Marchiori, Ó. Córdoba-Gaona","doi":"10.15446/rfnam.v74n3.93102","DOIUrl":"https://doi.org/10.15446/rfnam.v74n3.93102","url":null,"abstract":"Grafting is an effective approach to improve tomato yield and for tolerance to various abiotic and biotic stresses. This technique consists of using a vigorous or resistant plant (rootstock) to replace the root system of a genotype of economic interest (scion) but susceptible to one or more stress factors. The present work aimed to evaluate the physiological and productive response of a commercial tomato scion grafted on different rootstocks in Colombia’s high-Andean region. For this purpose, a tomato cv. Libertador was grafted on two commercial (“Olimpo” and “Armada”) tomato rootstocks in a randomized complete block experimental design. Four scion×rootstock combinations were evaluated by vigor rootstock, resistant rootstock, self-grafting, and non-grafted plants. Net photosynthesis, transpiration rate, stomatal conductance, water use efficiency, and radiation use efficiency were evaluated during six phenological stages (701, 704, 706, 708, 710, and 712), according to the BBCH scale; while the leaf area index and quantum yield were analyzed in five phenological stages (except 706). The highest values of photosynthesis, stomatal conductance, water and radiation use efficiency were registered in the initial phase of the production stage (701), which tended to decline at the end of the life cycle (712). Transpiration rate was similar throughout the growth cycle. Nevertheless, vigor rootstock presented the lowest photosynthesis rate; it was superior in terms of leaf area index, leaves dry matter, and tomato yield. The quantum yield values of the photosystem II did not indicate photochemical injuries in any of the scion×rootstock combinations. The higher tomato yield was reached in vigor rootstock and was associated with a more significant accumulation of dry matter in the leaf and higher leaf area index.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86911446","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: 1
The water footprint of coffee production in Colombia 哥伦比亚咖啡生产的水足迹
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-09-01 DOI: 10.15446/rfnam.v74n3.91461
Juan Carlos Leal Echeverri, C. Tobón
{"title":"The water footprint of coffee production in Colombia","authors":"Juan Carlos Leal Echeverri, C. Tobón","doi":"10.15446/rfnam.v74n3.91461","DOIUrl":"https://doi.org/10.15446/rfnam.v74n3.91461","url":null,"abstract":"El problema de la disponibilidad de agua y su importante papel en el sector agrícola, específicamente en la presión que existe actualmente por el recurso hídrico, pero además en países como Colombia donde el cultivo del café tiene una importancia histórica, cultural y económica, lo que hace necesario un estudio de la huella hídrica de este cultivo en el país. Aquí se presentan los resultados de la huella hídrica de la producción de café (cultivo y beneficio) en Colombia, por el método de beneficio tradicional y ecológico. Para su cálculo se siguió la metodología propuesta por Water Footprint Network. La huella hídrica verde promedio del cultivo de café en Colombia es de 8.746 m3 t-1, no tiene huella hídrica azul porque no requiere riego y la huella hídrica gris es del orden de 7.000 m3 t-1. El beneficio tradicional de café no tiene huella hídrica verde, la huella hídrica azul es de 4.00 m3 t-1 y tiene una huella hídrica gris de 3.200 m3 t-1. El beneficio ecológico Becolsub® tiene una huella hídrica de azul de 0,60 m3 t-1 y una huella hídrica gris de 1.739 m3 t-1; mientras la tecnología Ecomill® sin vertimientos de aguas residuales tiene una huella hídrica azul de 0,55 m3 t-1 y no tiene huella hídrica gris porque no presenta vertimientos. Esto implica que el método de procesamiento ecológico Becolsub® Esto implica que el método de procesamiento ecológico Becolsub® disminuye la huellahídrica en un 45,7% y en un 99,9% con el proceso ecológico Ecomill® (sin descarga de aguas residuales) en comparación con la tecnología tradicional de procesamiento húmedo. A nivel mundial, Vietnam cuenta con la menor huella hídrica, seguido por Colombia, Etiopia, Brasil, Perú e Indonesia. La huella hídrica del café, depende del clima y el rendimiento del cultivo, por esta razón, la huella hídrica del cultivo de café varia significativamente con el lugar y el periodo de evaluación.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81938083","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: 1
Alkaline solution as a control of Botrytis cinerea, Rhizopus stolonifer, Salmonella spp. and Escherichia coli growth in strawberry (Fragaria x ananassa) 碱性溶液对草莓灰霉病菌、匍匐茎霉、沙门氏菌和大肠杆菌的防治效果
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-05-01 DOI: 10.15446/RFNAM.V74N2.90319
S. Santacruz, J. Cedeño
{"title":"Alkaline solution as a control of Botrytis cinerea, Rhizopus stolonifer, Salmonella spp. and Escherichia coli growth in strawberry (Fragaria x ananassa)","authors":"S. Santacruz, J. Cedeño","doi":"10.15446/RFNAM.V74N2.90319","DOIUrl":"https://doi.org/10.15446/RFNAM.V74N2.90319","url":null,"abstract":"Post-harvest treatments of fruits and vegetables can help to reduce the attack of microorganisms especially the presence of pathogenic microorganisms. Alkaline water solutions were used to control of the growth of Botrytis cinerea, Rhizopus stolonifer, Salmonella spp. and Escherichia coli in strawberry (Fragaria x ananassa). Strawberries were inoculated with the microorganisms and afterwards were immersed in alkaline solutions of pH 11, 12 and 13. In vitro microbiological analyses were used to evaluate the presence of the microorganisms after fruit immersion in alkaline solutions, while the disc diffusion method was used to study the inhibition of microorganism growth. According to the results, alkaline solutions at pH 13 can be utilized to control Botrytis cinerea and Rhizopus stolonifer in strawberries. The immersion of strawberries in alkaline solutions at pH 13 for 60 min allowed to control in vitro development of Salmonella spp. and Escherichia coli.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85824747","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
Estimation of leaf nitrogen content from nondestructive methods in Eucalyptus tereticornis and Eucalyptus saligna plantations 用无损方法估算虎角桉和盐柳桉人工林叶片氮含量
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-01-01 DOI: 10.15446/rfnam.v74n3.93619
J. Valverde
{"title":"Estimation of leaf nitrogen content from nondestructive methods in Eucalyptus tereticornis and Eucalyptus saligna plantations","authors":"J. Valverde","doi":"10.15446/rfnam.v74n3.93619","DOIUrl":"https://doi.org/10.15446/rfnam.v74n3.93619","url":null,"abstract":"The determination of leaf nitrogen content (LNC) by indirect methods is essential for silvicultural management of forest crops. The application of photography or rapid measurement equipment, such as chlorophyll index (soil-plant analysis development-SPAD), is increasingly used due to its low-cost, ease of estimation and accuracy. Therefore, the aim of this study was to estimate foliar nitrogen content from nondestructive methods in plantations of Eucalyptus tereticornis and Eucalyptus saligna using three urea treatments (120 kg N ha-1, 240 kg N ha-1 and a control treatment without urea). For each treatment, 10 trees were selected, including four for the validation of the equations. The LNC was directly evaluated for color with the CIEL*a*b* model, photographic measurement with the RGB model, SPAD measurement and destructive estimation of nitrogen in leaves. The results showed negative relationships with the L* (luminosity) and b* (trend from yellow to green) indices, while the a* (red to green trend) index was discarded, with SPAD positive relationships were found with LNC and RGB space. In the R and B indices, the greatest negative relationships were found. It was determined that the multivariate equation Y=a+b1x1+b2x2+…+bnxn can be used for this type of study. It was also determined that the LNC=0.389+0.026SPAD model was the optimum for E. tereticornis and the LNC=3.826-0.001R-0.10B equation was the optimum for E. saligna.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74974149","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: 1
Effect of supplemental irrigation on bread wheat genotypes yield under Mediterranean semi-arid conditions of north-eastern Algeria 阿尔及利亚东北部地中海半干旱条件下补充灌溉对面包小麦基因型产量的影响
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-01-01 DOI: 10.15446/RFNAM.V74N1.89798
Mohamed Aissaoui, M. Fenni
{"title":"Effect of supplemental irrigation on bread wheat genotypes yield under Mediterranean semi-arid conditions of north-eastern Algeria","authors":"Mohamed Aissaoui, M. Fenni","doi":"10.15446/RFNAM.V74N1.89798","DOIUrl":"https://doi.org/10.15446/RFNAM.V74N1.89798","url":null,"abstract":" Different levels of supplemental irrigation regimes on four wheat (Triticum aestivum L.) genotypes were evaluated, two of which were introduced into Sétif region by ACSAD institution, during the growing season 2013-2014, in order to assess the effect of deficit irrigation pattern on yield traits performance and to determine most suitable genotype for local semi-arid conditions. On the basis of the experimentation data, it was found that supplemental irrigation improved the investigated genotypes yield, which ranged from 220.03 g m-2 for variety El-wifak in rainfed conditions to 368.3 g m-2 for variety Djanet (ACSAD899) with an increase of about 67%; just by applying two irrigations, the first at the jointing stage and the second at mid-flowering stage. This increase was related to the improvement of most agronomic traits that correlated significantly and positively with grain yield, in response to supplemental irrigation application. These findings indicated that Djanet (ACSAD899) was a genotype successfully introduced under irrigated conditions, while Hidhab (HD1220) with an average grain yield of 298.3 g m-2, proved to be more stable and well adapted to the locally rainfed conditions.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78292619","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: 3
Selection of potato genotypes Solanum tuberosum group Andigena by their tolerance to Phytophthora infestans (Mont.) of Bary 马铃薯基因型的选育及其对马铃薯疫霉的耐受性
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-01-01 DOI: 10.15446/RFNAM.V74N1.87566
Juan José Lagos Regalado, Tulio Cesar Lagos Burbano, David Esteban Duarte Alvarado, Liz Katherine Lagos Santander
{"title":"Selection of potato genotypes Solanum tuberosum group Andigena by their tolerance to Phytophthora infestans (Mont.) of Bary","authors":"Juan José Lagos Regalado, Tulio Cesar Lagos Burbano, David Esteban Duarte Alvarado, Liz Katherine Lagos Santander","doi":"10.15446/RFNAM.V74N1.87566","DOIUrl":"https://doi.org/10.15446/RFNAM.V74N1.87566","url":null,"abstract":"Phytophthora infestans is the most limiting biotic problem of potato crop in Colombia and the world. It is a pathogen that threatens the sustainability of the crop. Therefore, it is necessary to evaluate work collections of potato to identify enotypes that show disease tolerance. The objective of this work was to  select genotypes of Solanum tuberosum group Andigena by their tolerance to P. infestans. This study  was carried out under conditions of Pasto, in the South of Colombia at 2,820 masl. A total of 76 introductions of guata potatoes were evaluated under natural inoculum, including Capiro as a susceptible control, Betina as moderately tolerant and Pastusa Suprema as highly tolerant. The number of stems and stolons per  plant was registered. Disease severity  assessments and traits related to the area under the disease progress curve were made. At harvest stage, yield values per plant and its components were recorded. Principal Component and Classification analyses discriminated tolerant introductions of susceptible. Significant positive correlations were found between the yield with the number of stolons, tubers per plant and tuber weight, and negative correlations with everity and area under the relative disease progress curve. The selected introductions showed high yield per plant and mostly minor severities to the population, indicating an agronomic potential that must be evaluated in different environments to determine its adaptability and stability. UdenarStGua53, UdenarStGua61, UdenarStGua68, UdenarStGua73, UdenarStGua75, UdenarStGua77 y UdenarStGua78, coming from the International Potato Center (CIP) are confirmed as a source of tolerance to P. infestans and can be considered as parental within species improvement programs.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77620741","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: 1
Yield and quality of winter wheat (Triticum aestivum L.) grain in relation to nitrogen fertilization 氮肥对冬小麦籽粒产量和品质的影响
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-01-01 DOI: 10.15446/RFNAM.V74N1.88835
Ya. P. Tsvey, R. Ivanina, V. Ivanina, S. Senchuk
{"title":"Yield and quality of winter wheat (Triticum aestivum L.) grain in relation to nitrogen fertilization","authors":"Ya. P. Tsvey, R. Ivanina, V. Ivanina, S. Senchuk","doi":"10.15446/RFNAM.V74N1.88835","DOIUrl":"https://doi.org/10.15446/RFNAM.V74N1.88835","url":null,"abstract":"Winter wheat is commonly cultivated in Ukraine. This crop has nutritional requirements that have been affected due to the climate changes that in the recent years the country has been suffered. In the spring season, the plant is found in growing stage, which requires a suitable nitrogen nutrition and it must be supplied due to the deficit of this element during the vegetative development. Within this framework, this study aimed to establish the optimal nitrogen rate for winter wheat that was applied in different configurations on leached black soil, and to determine the effectiveness of nitrogen application to the frozen soil surface in early spring as a basis for these fertilizations. The experiment was conducted at the Bila Tserkva ResearchSelection Station (Ukraine) during 2017–2019. The soil of this place corresponds to a leached loamy black soil (Mollisol) with content of organic matter between 3.6-3.8%, mobile phosphorus (P2O5) 156-166 mg kg-1, potassium (K2O) 64-77 mg kg-1, and pHKCl 5.8–6.3. A randomized experimental design with four nitrogen rates (0, 60, 80, 110 kg ha-1) with four replications as factorial arrangement was used. The results indicated that winter wheat yield was significantly affected by all nitrogen fertilizer rates (P<0.05). The highest average grain yield was obtained with 110 kg ha-1 nitrogen rate that combined application nitrogen to the frozen soil surface and the foliar feeding with 6.90 t ha-1. In years of regular precipitation during the growing season (2018-2019), nitrogen fertilizers had a more pronounced effect on winter wheat yield than in a year of precipitation deficiency (2017). A significant increase in grain protein content was obtained in variants where foliar feeding of winter wheat with urea solution was a part of fertilization strategy; it was attributed to nitrogen rates of 80 and 110 kg ha-1. The increase in protein content of the grain was less dependent on the weather conditions and was stable through the years of experiment.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75286645","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: 4
Physical, physiological, physicochemical and nutritional characterization of pumpkin (Cucurbita maxima) in postharvest stage cultivated in Antioquia-Colombia 哥伦比亚安蒂奥基亚地区栽培的南瓜采后期的物理、生理、理化和营养特性
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-01-01 DOI: 10.15446/rfnam.v74n3.90820
C. J. Márquez Cardozo, Daniela Molina Hernández, Birina Luz Caballero, H. C. Ciro Velásquez, Diego Alonso Restrepo Molina, G. C. Correa Londoño
{"title":"Physical, physiological, physicochemical and nutritional characterization of pumpkin (Cucurbita maxima) in postharvest stage cultivated in Antioquia-Colombia","authors":"C. J. Márquez Cardozo, Daniela Molina Hernández, Birina Luz Caballero, H. C. Ciro Velásquez, Diego Alonso Restrepo Molina, G. C. Correa Londoño","doi":"10.15446/rfnam.v74n3.90820","DOIUrl":"https://doi.org/10.15446/rfnam.v74n3.90820","url":null,"abstract":"Pumpkin (Cucurbita maxima), also called squash is a mass consumption fruit used in agroindustrial transformations to obtain new food products. This study aimed to evaluate the physical, physiological and physicochemical properties during a storage period of 42 days and the nutritional compounds of the freshly harvested fruit fractions. According to the CIEL*a*b* space, both the pulp and peel did not present significant changes in L* and a* values during the evaluated storage time; however, in the peel, a change in the b* values was evidenced. In addition, there was a decrease in the firmness of 10.8% in the fruit with peel and in the pulp, it was of 19.8% was observed, with a whole fruit weight loss of 2.33% and an average respiration rate of 6.9 mg CO2 kg-1h-1. According to physicochemical characteristics evaluated in the pulp, the values of pH, percentage of humidity, acidity, water activity and total soluble solids had no statistically significant changes occurred during the storage time. At the nutritional level, pumpkin is a good source of minerals, with a high concentration of potassium in all its fractions, and also has in total carotenoids (4.11±1.6 mg of β-carotene g-1 oven dry (o.d) in pulp and 6.24±2.7 mg of β-carotene g-1 (o.d) in peel). It was possible to conclude that the pumpkin has a low respiration rate, maintaining its physicochemical characteristics suitable for consumption throughout the evaluation period, presenting suitable conditions.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81791949","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: 3
Extraction of anthocyanins from Mortiño (Vaccinium floribundum) and determination of their antioxidant capacity Mortiño (vacinium floribundum)花青素的提取及抗氧化能力测定
Revista Facultad Nacional de Agronomia Medellin Pub Date : 2021-01-01 DOI: 10.15446/RFNAM.V74N1.89089
B. Pérez, A. Endara, J. Garrido, Lucía de los Ángeles Ramírez Cárdenas
{"title":"Extraction of anthocyanins from Mortiño (Vaccinium floribundum) and determination of their antioxidant capacity","authors":"B. Pérez, A. Endara, J. Garrido, Lucía de los Ángeles Ramírez Cárdenas","doi":"10.15446/RFNAM.V74N1.89089","DOIUrl":"https://doi.org/10.15446/RFNAM.V74N1.89089","url":null,"abstract":"Mortiño (Vaccinium floribundum) is a wild Andean berry, with a high content of bioactive compounds, especially anthocyanins, with protective effects against various diseases due to their antioxidant capacity. The aim of this study was to determine the best anthocyanin extraction conditions without affecting the mortiño antioxidant capacity. A completely randomized design with factorial arrangement 23 was applied in the extraction (solvent: ethanol and methanol; concentration: 20 and 60%; temperature: 30 and 60 °C). The anthocyanin content showed that the best extraction conditions were 20 and 60% hydroethanolic solution at 60 °C (P<0.05). For the antioxidant capacity, the treatments were analyzed in a factorial arrangement 22: ethanol and methanol 20%; 30 and 60 °C. The highest antioxidant capacity was found at 20% ethanol and 60 °C (19,653.3±256.62 µmol TE 100 g-1 FW (fresh weight)) by the FRAP method (Ferric Reducing Antioxidant Power) (P<0.05), and with the ABTS methodology, methanol and ethanol (20%), at 60 °C (8458.3±127.45 and 8,258.0±325.05 µmol TE 100 g-1 FW, respectively) (P<0.05). Extraction at 60 °C did not affect the antioxidant properties of anthocyanins. A high correlation was found between both methodologies by Pearson’s Correlation (PC=0.898). In addition, the antioxidant capacity measured by the two methods was highly related to the anthocyanin content of the extracts (PC=0.973 and 0.952, respectively). Other berry species have been extensively investigated for their antioxidant compounds, but there is limited information about the optimization of anthocyanin extraction from mortiño and its high antioxidant capacity important for future industrial applications. As a result, ethanol at 20 and 60%, 60 °C for  h are the best conditions to extract and quantify the anthocyanins of the mortiño fruit.","PeriodicalId":37747,"journal":{"name":"Revista Facultad Nacional de Agronomia Medellin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83361618","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: 5
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