Diffusional analysis and textural properties of coated strawberries during osmotic dehydration treatment

BACKGROUND: The use of polysaccharide based edible coatings as a barrier against the solute entry of high caloric constituents, such as sucrose, is a suitable strategy to develop pro-healthy osmo-dehydrated products. OBJECTIVE: This work aims to study the effect of a calcium alginate film over the d...

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Autores principales: Gamboa Santos, Juliana, Vasco, María Florencia, Campañone, Laura Analía
Formato: Articulo
Lenguaje:Español
Publicado: 2021
Materias:
Ingeniería
Coated strawberries
drying methods
pro-healthy products
diffusional analysis
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/140342
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-140342
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ingeniería
Coated strawberries
drying methods
pro-healthy products
diffusional analysis
spellingShingle Ingeniería
Coated strawberries
drying methods
pro-healthy products
diffusional analysis
Gamboa Santos, Juliana
Vasco, María Florencia
Campañone, Laura Analía
Diffusional analysis and textural properties of coated strawberries during osmotic dehydration treatment
topic_facet Ingeniería
Coated strawberries
drying methods
pro-healthy products
diffusional analysis
description BACKGROUND: The use of polysaccharide based edible coatings as a barrier against the solute entry of high caloric constituents, such as sucrose, is a suitable strategy to develop pro-healthy osmo-dehydrated products. OBJECTIVE: This work aims to study the effect of a calcium alginate film over the drying kinetics of strawberries during an osmotic dehydration (OD) treatment at 60°Brix, 4 h, 40°C (sucrose). Also, textural parameters were evaluated. METHODS: It was determined the changes in some selected physical properties, such as: moisture, total solid contents, one-dimensional shrinkage and texture, at 30 min steps during OD treatment. Besides, water and solid diffusion coefficients ( D e W and D e TS , respectively) were calculated by using the analytical solution of Fick’s equation. RESULTS: Diffusion coefficients for water and solids showed significant differences due to coating presence as an evidence of the barrier effect. Coated strawberry samples presented several changes after 2 h of OD treatment at the assayed conditions for most of the parameters evaluated. CONCLUSIONS: Alginate coating at the tested conditions acts as a barrier to sucrose influx and to water outflux until 2 and 3 h of OD treatment, respectively. Besides, a good textural quality for osmotically-dehydrated strawberries was obtained.
format Articulo
Articulo
author Gamboa Santos, Juliana
Vasco, María Florencia
Campañone, Laura Analía
author_facet Gamboa Santos, Juliana
Vasco, María Florencia
Campañone, Laura Analía
author_sort Gamboa Santos, Juliana
title Diffusional analysis and textural properties of coated strawberries during osmotic dehydration treatment
title_short Diffusional analysis and textural properties of coated strawberries during osmotic dehydration treatment
title_full Diffusional analysis and textural properties of coated strawberries during osmotic dehydration treatment
title_fullStr Diffusional analysis and textural properties of coated strawberries during osmotic dehydration treatment
title_full_unstemmed Diffusional analysis and textural properties of coated strawberries during osmotic dehydration treatment
title_sort diffusional analysis and textural properties of coated strawberries during osmotic dehydration treatment
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/140342
work_keys_str_mv AT gamboasantosjuliana diffusionalanalysisandtexturalpropertiesofcoatedstrawberriesduringosmoticdehydrationtreatment
AT vascomariaflorencia diffusionalanalysisandtexturalpropertiesofcoatedstrawberriesduringosmoticdehydrationtreatment
AT campanonelauraanalia diffusionalanalysisandtexturalpropertiesofcoatedstrawberriesduringosmoticdehydrationtreatment
bdutipo_str Repositorios
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