Analía Concellón- PhD. National University of La Plata. Argentine
- Researcher and Professor at National Scientific and Technical Research Council- National University of La Plata
Analía Concellón
- PhD. National University of La Plata. Argentine
- Researcher and Professor at National Scientific and Technical Research Council- National University of La Plata
Independent Scientific Research (CONICET) at CIDCA.
Associate Professor at UNLP
About
61
Publications
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Introduction
Our research group works at the CIDCA (Centro de Investigación y Desarrollo en Criotecnología de Alimentos), National University of La Plata. We work in the area of postharvest biology and technology of fruits and vegetables, studying technological alternatives to delay chilling injury, decay, ripening, senescence. We also work analyzing antioxidants, sugars, volatile, ethylene, pigments, browning, cell wall disassembly, oxidative stress, enzymes, etc.
Current institution
National Scientific and Technical Research Council- National University of La Plata
Current position
- Researcher and Professor
Additional affiliations
October 2015 - present
November 2014 - December 2014
Equator Technological University
Position
- Professor
November 2009 - December 2009
Equator Technological University
Position
- Researcher
Education
October 1998 - March 2003
February 1991 - March 1997
Publications
Publications (61)
Bell peppers (Capsicum annuum L.) are prone to chilling injury (CI) when stored at temperatures below 7 °C. Melatonin, a natural plant regulator, plays a critical role in defending against different pre- and post-harvest abiotic stresses, including those associated with cold storage. This study aimed to assess the effects of applying exogenous mela...
Fresh-cut produce have become widely popular, increasing vegetable consumption in many parts of the word. However, they are more perishable than unprocessed fresh vegetables, requiring cold storage to preserve their quality and palatability. In addition to cold storage, UV radiation has been used experimentally to try to increase nutritional qualit...
Low-temperature conditioning (LTC) has been reported to effectively control post-harvest chilling injury (CI). Conspicuously, it has not been widely adopted by the industry. This is in part related to an incomplete understanding of the factors governing the treatment's efficacy and consistency along genotypes and maturities. Herein, we evaluated th...
Brassinosteroids are polyhydroxy steroid hormones, tested to induce cold acclimation in whole plants and some harvested fruits. So far, no works have determined whether such strategy may improve the chilling tolerance of immaturely harvested Cucurbits, which are, among the most sensitive vegetables. Herein, we evaluated the efficacy of 24‐epibrassi...
BACKGROUND
Vegetable grafting has been increasingly evaluated to improve preharvest tolerance to biotic and abiotic stresses. However, very few studies have identified rootstock–scion combinations able to improve fruit shelf life and reduce the susceptibility to postharvest disorders. Herein, a purple eggplant scion (cv. Monarca) was grafted onto a...
Purpose
The purpose of this paper was to develop a loaf bread enriched with naranjilla (lulo) fruit (shells, seeds and pulp) and determine the technical quality, sensory acceptability and bioavailability (by in vitro digestion) of antioxidant components.
Design/methodology/approach
Loaf bread was prepared by using a no-time bread-making process. T...
Vegetable quality shows extensive variation along a single production cycle depending on the harvest season. So far, these effects have been mostly attributed to variations in preharvest climatic conditions, resource availability and cultural practices. Whether or not some of these differences are also influenced by variations in the plant age is u...
El creciente interés por los snacks de vegetales no amiláceos, preparados sin fritura se explica por su menor
densidad calórica, respecto a la papa deshidratada y frita. Los métodos convencionales de secado a alta
temperatura en ciertos casos pueden provocar pérdidas de componentes bioactivos. Es por ello que existe
interés en la búsqueda de nuevos...
The growing interest in snacks of non-starchy vegetables, prepared without frying is explained by its lower caloric
density, compared to dehydrated and fried potatoes. Occasionally, conventional high-temperature drying methods
may cause losses of bioactive components. Consequently, there is interest in the search for new processing
methods that red...
Eggplant (Solanum melongena L) quality and storability can be influenced by time of harvest. Effects on sugars, antioxidants, chilling tolerance, and postharvest shelf-life of eggplant due to production cycle activities were determined. Late-season fruit had the highest sugars and antioxidants levels. Early-season fruit had the lowest level of pulp...
Artichoke (AF), eggplant (EF) and tomato (TF) flour were used as nutritional ingredients for wheat dough. A replacement of wheat flour with 5 or 10% of these vegetable flour was performed. Hydration properties (equilibrium adsorption isotherms, solvent retention capacity), capacity of blends for dough development (farinographic assay) and the proxi...
Eggplant (Solanum melongena L.) is the third solanaceous of horticultural importance in the world, after potato and tomato. In the agricultural production of this vegetable, there are post-harvest losses and waste generation. Reduction of these inconveniences can be avoided by obtaining ingredients with high nutritional value for food processing, a...
La berenjena es un cultivo anual, su periodo de cosecha comienza en primavera (noviembre-diciembre) y culmina en otoño (mayo), ya su requerimiento de alta luminosidad y clima cálido determina la extensión de dicho ciclo. La polinización y posterior desarrollo de semillas, como así también la anatomía celular de los frutos
en distintas etapas del cr...
Ethylene is accepted to be a key player in the regulation of climacteric fruit ripening and senescence of leafy vegetables. In contrast, there is still disparity in the literature on the role it may have on quality deterioration of edible petioles. In this work, we evaluated the influence of the ethylene generator 2-chloroethylphosphonic acid (Ethe...
Whereas the production season is accepted to exert profound influence on fruit physiology, micro-structure and quality, very few studies have attempted to find liaisons between these traits. Herein, we determined the micro-structural and quality changes of eggplant fruit produced in Late Spring (mean air temperature 22 °C; max. 28 °C; min. 16 °C),...
Whereas the production season is accepted to exert profound influence on fruit physiology, micro-structure and
quality, very few studies have attempted to find liaisons between these traits. Herein, we determined the microstructural
and quality changes of eggplant fruit produced in Late Spring (mean air temperature 22 °C; max. 28 °C;
min. 16 °C), L...
Ascorbic acid (AA) is a major redox buffer in plant cells. The role of ethylene in the redox signaling pathways that influence photosynthesis and growth was explored in two independent AA deficient Arabidopsis thaliana mutants (vtc2-1 and vtc2-4). Both mutants, which are defective in the AA biosynthesis gene GDP-L-galactose phosphorylase, produce h...
El objetivo fue evaluar el uso del ozono gaseoso como tratamiento poscosecha sobre la calidad fisicoquímica y capacidad antioxidante en naranjilla. Frutos recién cosechados se dividieron en dos grupos: (1) tratamiento ozono gaseoso, 1.5 ppm y (2) frutos sin tratamiento, denominados controles. Los frutos se empacaron en bandejas tipo clamshell, a los...
Postharvest UV exposure has been useful to i) delay senescence and ii) induce the accumulation of bioactive compounds in some vegetable species. However, no studies have been conducted to determine the treatment conditions (radiation dose and intensity) required to maximize these two diverse responses. In this work, we evaluated the effect of UV-B...
La berenjena es un cultivo anual, su periodo de cosecha comienza en primavera (noviembre-diciembre) y culmina en otoño (mayo), ya su requerimiento de alta luminosidad y clima cálido determina la extensión de dicho ciclo. La polinización y posterior desarrollo de semillas, como así también la anatomía celular de los frutos en distintas etapas del cr...
In this work, we selected a short UV-C treatment for fresh-cut carambola and assessed its efficacy in supplementing the benefits of low temperature storage. UV-C treated (6.0, 10.0, and 12.5 kJ m ⁻² ) carambola slices showed reduced deterioration compared to control fruit. Treatment with a dose of 12.5 kJ m ⁻² UV-C was more effective in maintaining...
Three Andean fruits naranjilla (Solanum quitoense Lam.), uvilla (Physalis peruviana L.), and mortiño (Vaccinium floribundum Kunth) were subjected to prestorage UV-C treatments (0, 8, or 12.5 kJ m −2) and evaluated weekly to select the most suitable dose for fruit quality maintenance during storage (21 days at 6 ∘ C). The highest dose retains qualit...
Los frutos de berenjena son muy ricos en antioxidantes dentro de los vegetales. En el presente trabajo se evaluó la influencia del estado de desarrollo y de las condiciones de almacenamiento sobre el nivel y la estabilidad de los antioxidantes fenólicos de berenjena violeta. El ácido clorogénico (CGA) fue el antioxidante predominante y su contenido...
Given the proscription of using chemicals from synthesis, the alternatives for postharvest management of organic produce are limited. Consequently, great interest is being devoted to develop and optimize alternative postharvest approaches. In this work we tested mild heat treatments for green and red fresh-cut peppers and evaluated their effect on...
During the treatment of tuberculosis infection, oxidative stress due to anti-tubercular drugs may result in tissue inflammation. It was suggested that treatment with antioxidant drugs could be beneficial as an adjunct to anti-tuberculosis drug therapy. Recently our group has shown that several C-glycosides are inhibitors of Mycobacterium tuberculos...
La mora es un fruto no climatérico que requiere de cuidado durante su cosecha, debido a la maduración nouniforme, la fermentación y a la gran sensibilidad a los daños mecánicos. La fruta fue cosechada manualmentefue seleccionada y dividida en tres grupos: control (frutos sin radiación UV-C y sin atmósfera modificada –AM-) ytratados empacados con AM...
Se realizó la caracterización de tres variedades de naranjilla (Solanum quitoense): Iniap-Quitoense 2009, Baeza y Agria, en dos estados de madurez y durante el almacenamiento. Se cosecharon frutos con 50% de color amarillo (estado 3) y 100% de color amarillo (estado 5), estos últimos se almacenaron a temperatura ambiente durante
14 días y humedad...
Se evaluó el efecto de la cocción sobre la composición proximal y la capacidad antioxidante de cinco variedades de papas nativas (Yana Shungo, Puca Shungo, Leona Negra Tushpa y Uvilla). El contenido de proteína en las variedades Yana Shungo, Puca Shungo y Leona Negra fue mayor luego de la cocción. Las papas nativas cocidas presentaron mayor capacid...
The responses of fresh-cut (FC) vegetables to CO2 and O2 levels depend on their ripening stage and degree of processing. In this work we evaluated the effect of storage under different CO2 (2.5; 5; 10 and 15 kPa) and O2 (2.5 and 5 kPa) combinations or air on quality retention of FC green and red pepper. Atmospheres with 15 kPa CO2 caused physiologi...
Las papas nativas son autóctonas de los Andes, en el Ecuador existen alrededor de 400 variedades cultivadas. Estos productos, además de ser ricos en nutrientes, presentan antioxidantes naturales fundamentales en la prevención de enfermedades cardiovasculares. El objetivo fue evaluar el efecto de la cocción sobre la composición proximal y la capacid...
Fruit leathers are pectic gels, eaten as snack or dessert, obtained by dehydrating fruit purees. In this work, apple leathers were prepared by a hot-air drying process which allows the formation of a gel, following the “saccharide–acid–high methoxyl pectin” gelation mechanism. Leathers were produced at 50, 60 and 70 °C, from two formulations: contr...
(Recibido: 2013/03/07 - Aceptado: 2013/06/17)El objetivo de esta investigación fue estudiar el contenido de compuestos antioxidantes entomate de árbol morado cultivado a diferentes alturas (m.s.n.m.). Se emplearon frutosprovenientes de Pelileo (2660 m.s.n.m.) y Chiquicha (2440 m.s.n.m.) en tres estados demaduración (inmaduros, maduros y sobremaduro...
La naranjilla es susceptible al ataque de Phytophthora y Rhizopus, principales causantes de pérdidas poscosecha. El objetivo del estudio fue evaluar el efecto hormético de la radiación UV–C sobre el desarrollo de Rhizopus y Phytophthora inoculados en naranjilla. Frutos de naranjilla se dividieron en tres grupos: 12,5kJ/m2 (irradiados), 0kJ/m2 (inoc...
El objetivo del presente trabajo fue evaluar la aplicación de la radiación UV-C sobre la capacidad antioxidante denaranjilla durante el almacenamiento refrigerado. Frutos recién cosechados fueron seleccionados y divididos endos grupos: frutos tratados (irradiados con dosis: 12.5 kJ/m2) y no tratados (controles); se almacenaron enbandejas plásticas...
El objetivo del presente trabajo de investigación fue evaluar el efecto del uso combinado de la radiación UV-C y atmósfera modificada sobre el tiempo de vida útil de uvilla orgánica sin capuchón. Se empleó uvilla orgánica producida en una parcela de la Unión de Organizaciones Campesinas e Indígenas de Cotacachi – UNORCAC, Provincia de Imbabura. Los...
El objetivo del presente trabajo fue evaluar el efecto de la aplicación de la radiación UV-C sobre el contenido de compuestos antioxidantes y la capacidad antioxidante de la naranjilla y el mortiño, durante el almacenamiento refrigerado. Frutos recién cosechados fueron seleccionados y divididos en dos grupos: frutos tratados (irradiados con dosis d...
Unlabelled:
The objective of this work was to select a Ultraviolet-C (UV-C) treatment for fresh-cut mature green bell pepper, and to evaluate the effect of its combination with refrigeration on quality maintenance. Bell pepper sticks were treated with 0, 3, 10, or 20 kJ/m² UV-C in the outer (O), inner (I), or both sides of the pericarp (I/O) and s...
To elucidate the role of ethylene in summer squash [Cucurbita maxima var. Zapallito (Carr.) Millan] postharvest responses, harvested fruit was treated with the inhibitor of ethylene action 1-methylcyclopropene (1-MCP, 1 μL L) and stored at 10 or 0 °C for 14 or 19 days, respectively. Deterioration, chilling injury (CI), weight loss, surface color, f...
Many beneficial effects associated with fruit and vegetable consumption are related to the presence of antioxidants, which could be greatly affected by postharvest storage conditions. Eggplants or aubergines (Solanum melongena L.) are among the top vegetables in terms of antioxidant content. In this work, we evaluated the effect of two postharvest...
Ethylene action can be counteracted by 1-methylcyclopropene (1-MCP), which has been used during postharvest storage to maintain quality. In this work, we evaluated the effect of 1-MCP treatments on eggplant quality and phenolic metabolism during refrigerated storage. Eggplants (cv. Lucía) were harvested at commercial maturity, treated with 1-MCP (1...
We evaluated the effect of short-term gaseous ozone treatment (10 microL/L; 10 min) on tomato fruit quality and cell wall degradation. The treatments did not modify fruit color, sugar content, acidity, or antioxidant capacity but reduced fruit damage and weight loss and induced the accumulation of phenolic compounds. In addition, softening was dela...
Eggplant (Solanum melongena L.) is a perishable and chilling-sensitive tropical fruit. The chilling injury (CI) symptoms as well as some physical and physiological implications were studied in eggplants Money Maker No. 2 stored at 0 and 10 °C for 15 days. Eggplants stored at 10 °C were not damaged by temperature, whereas fruit stored at 0 °C suffer...
Eggplant is a non-climacteric fruit, with low ethylene production rates after harvest, whose response to storage at low temperature was studied. To this end, fruit were stored for 13 days at 0 and 10 °C. Fruits stored at 10 °C were unaffected, but those maintained at 0 °C suffered severe chilling injury (CI) from day 6. Electrolyte leakage, conside...
Polyphenoloxidase (PPO) from eggplant fruit was characterized, and its catecholase activity studied during storage of fruit at 0 and 10 °C. The high catecholase activity was observed using 4-methylcatechol as substrate at pH 6 and 30 °C and activation with sodium dodecyl sulphate (SDS) was unnecessary. The soluble PPO fraction was the most thermost...
The equilibrium adsorption at 20 degreesC of molybdophosphoric acid solutions, using ethanol-water as solvent, on titania was studied. The molybdenum adsorption isotherm showed a sigmoidal shape; low values of molybdenum adsorbed were observed for final equilibrium concentrations lower than 50 mg Mo/ml, and for higher concentrations, the adsorbed m...
Se estudió la influencia del tratamiento UV-C sobre el tiempo de vida útil y propiedades antioxidantes enzimáticas y no enzimáticas de productos IV Gama de carambola (Averrhoa carambola L.). Frutos mínimamente procesados se dividieron en dos grupos: frutos tratados (13 kJ/m 2 ) y no tratados(controles) y se almacenaron en refrigeración durante 21 d...
carambola mínimamente procesada, radiación UV-C, postcosecha, antioxidantes
