Microbiological effect of coating modified by acid via on the long tomato life

Microbiological effect of coating modified by acid via on the long tomato life

A coating elaborated with modified cassava starch was applied by acid route, to evaluate the post-harvest behavior of the tomato under environmental conditions, determining its effect on the microbiological and structural characteristics. The modification of native starch of cassava variety SM 707-17 was carried out by addition of citric acid (15% w/w with respect to starch on dry basis) to a suspension of starch subjected to controlled conditions of temperature and speed of agitation. The effect was compared with that of the application of others elaborated based on enzymatically modified starch and native starch, being T1: control sample; T2: coating with enzymatically modified starch; T3: coating with starch modified with citric acid and T4: coating with native starch. The application was made manually with clean and sterile sponge; The tomatoes were placed in labeled trays, allowing to dry for 24 h at room temperature, from which the microbial growth and microscopic characterization of the tomato exocarp was measured for 15 days, applying a completely randomized 4x6 factorial design that had consider the type of related and independent samples; the data obtained were analyzed using SPSS software version 19, which found that the "Coating" factor did not influence the response variables analyzed, unlike the "Time" factor that had a decisive effect on them.

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Main Authors: Mosquera Sánchez, Silvio Andrés, Hoyos Yela, Nesly, Pérez Imbachí, Rocío, Paz Peña, Sandra Patricia
Format: Digital revista
Language:spa
Published: Universidad del Cauca -Facultad de ciencias Agrarias 2020
Online Access:https://revistas.unicauca.edu.co/index.php/biotecnologia/article/view/1551
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id rev-bsaa-co-article-1551
record_format ojs
institution UNICAUCA CO
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country Colombia
countrycode CO
component Revista
access En linea
databasecode rev-bsaa-co
tag revista
region America del Sur
libraryname Biblioteca de la UNICAUCA de Colombia
language spa
format Digital
author Mosquera Sánchez, Silvio Andrés
Hoyos Yela, Nesly
Pérez Imbachí, Rocío
Paz Peña, Sandra Patricia
spellingShingle Mosquera Sánchez, Silvio Andrés
Hoyos Yela, Nesly
Pérez Imbachí, Rocío
Paz Peña, Sandra Patricia
Microbiological effect of coating modified by acid via on the long tomato life
author_facet Mosquera Sánchez, Silvio Andrés
Hoyos Yela, Nesly
Pérez Imbachí, Rocío
Paz Peña, Sandra Patricia
author_sort Mosquera Sánchez, Silvio Andrés
title Microbiological effect of coating modified by acid via on the long tomato life
title_short Microbiological effect of coating modified by acid via on the long tomato life
title_full Microbiological effect of coating modified by acid via on the long tomato life
title_fullStr Microbiological effect of coating modified by acid via on the long tomato life
title_full_unstemmed Microbiological effect of coating modified by acid via on the long tomato life
title_sort microbiological effect of coating modified by acid via on the long tomato life
description A coating elaborated with modified cassava starch was applied by acid route, to evaluate the post-harvest behavior of the tomato under environmental conditions, determining its effect on the microbiological and structural characteristics. The modification of native starch of cassava variety SM 707-17 was carried out by addition of citric acid (15% w/w with respect to starch on dry basis) to a suspension of starch subjected to controlled conditions of temperature and speed of agitation. The effect was compared with that of the application of others elaborated based on enzymatically modified starch and native starch, being T1: control sample; T2: coating with enzymatically modified starch; T3: coating with starch modified with citric acid and T4: coating with native starch. The application was made manually with clean and sterile sponge; The tomatoes were placed in labeled trays, allowing to dry for 24 h at room temperature, from which the microbial growth and microscopic characterization of the tomato exocarp was measured for 15 days, applying a completely randomized 4x6 factorial design that had consider the type of related and independent samples; the data obtained were analyzed using SPSS software version 19, which found that the "Coating" factor did not influence the response variables analyzed, unlike the "Time" factor that had a decisive effect on them.
publisher Universidad del Cauca -Facultad de ciencias Agrarias
publishDate 2020
url https://revistas.unicauca.edu.co/index.php/biotecnologia/article/view/1551
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spelling rev-bsaa-co-article-15512020-12-18T02:44:45Z Microbiological effect of coating modified by acid via on the long tomato life Efecto microbiológico de recubrimiento modificado por vía ácida sobre el tomate larga vida Efeito microbiológico do revestimento de ácido amplificado na vida de longo tomate Mosquera Sánchez, Silvio Andrés Hoyos Yela, Nesly Pérez Imbachí, Rocío Paz Peña, Sandra Patricia Agroindustria A coating elaborated with modified cassava starch was applied by acid route, to evaluate the post-harvest behavior of the tomato under environmental conditions, determining its effect on the microbiological and structural characteristics. The modification of native starch of cassava variety SM 707-17 was carried out by addition of citric acid (15% w/w with respect to starch on dry basis) to a suspension of starch subjected to controlled conditions of temperature and speed of agitation. The effect was compared with that of the application of others elaborated based on enzymatically modified starch and native starch, being T1: control sample; T2: coating with enzymatically modified starch; T3: coating with starch modified with citric acid and T4: coating with native starch. The application was made manually with clean and sterile sponge; The tomatoes were placed in labeled trays, allowing to dry for 24 h at room temperature, from which the microbial growth and microscopic characterization of the tomato exocarp was measured for 15 days, applying a completely randomized 4x6 factorial design that had consider the type of related and independent samples; the data obtained were analyzed using SPSS software version 19, which found that the "Coating" factor did not influence the response variables analyzed, unlike the "Time" factor that had a decisive effect on them. Se aplicó un recubrimiento elaborado con almidón de yuca modificado por vía ácida, para evaluar el comportamiento pos-cosecha del tomate bajo condiciones ambientales, determinando su efecto sobre las características estructurales del tomate y su acción microbiológica sobre los hongos Colletotrichum sp y Fusarium Sp. La modificación de almidón nativo de yuca variedad SM 707-17 se realizó por adición de ácido cítrico (15% p/p respecto al almidón en base seca) a una suspensión de almidón sometida a condiciones controladas de temperatura y velocidad de agitación. El efecto se comparó con el de la aplicación de otros elaborados con base en almidón modificado enzimáticamente y almidón nativo, siendo T1: muestra testigo; T2: recubrimiento con almidón modificado enzimáticamente; T3: recubrimiento con almidón modificado con ácido cítrico y T4: recubrimiento con almidón nativo. La aplicación se realizó de forma manual con esponja limpia y estéril; los tomates se colocaron en bandejas rotuladas dejando secar por 24 h a temperatura ambiente, a partir de las cuales se inició la medición de las variables crecimiento microbiano y caracterización microscópica del exocarpo del tomate durante 15 días, aplicando un diseño factorial completamente al azar 4x6, que tuvo en cuenta el tipo de muestras relacionadas e independientes; los datos obtenidos se analizaron mediante el software SPSS versión 19 con el cual se encontró que el factor “Recubrimiento” no influyó sobre las variables de respuesta analizadas, a diferencia del factor “Tiempo” que tuvo efecto decisivo sobre las mismas. 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