Industrial avocado waste: Functional compounds preservation by convective drying process

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dc.coverageDOI: 10.1016/j.jfoodeng.2016.11.018
dc.creatorSaavedra, Jorge
dc.creatorCórdova, Andrés
dc.creatorNavarro, Rosa
dc.creatorDíaz-Calderón, Paulo
dc.creatorFuentealba, Claudia
dc.creatorAstudillo-Castro, Carolina
dc.creatorToledo, Lea
dc.creatorEnrione, Javier
dc.creatorGalvez, Lena
dc.date2017
dc.date.accessioned2025-11-18T19:47:02Z
dc.date.available2025-11-18T19:47:02Z
dc.description<p>A convective drying process was optimized as strategy to produce dehydrated ingredients with high antioxidant capacity; using Hass avocado byproducts (peels and seeds). Studied processing variables were: temperature (45 °C–75 °C), air-flow (0.8 m/s to 1.8 m/s) and loading density (1 kg/m<sup>2</sup> to 3 kg/m<sup>2</sup>). The response variables were Total Phenol Content (TPC) and Antioxidant Capacity (DPPH). Drying kinetic analysis revealed that seeds had higher water diffusivity than peels, but the latter showed shorter drying times. Multiple optimization routines allowed maximizing simultaneously DPPH and TPC. Thus, 62.82% and 54.81% of the initial TPC was retained in dehydrated peels and seeds, respectively. Sorption isotherms for both dehydrated byproducts showed that avocado seeds were more hygroscopic than peels, which was attributed to differences on their composition. This research has outlined a useful tool for the transformation of avocado wastes into storable commodities with high antioxidant properties which may have different food uses.</p>eng
dc.descriptionA convective drying process was optimized as strategy to produce dehydrated ingredients with high antioxidant capacity; using Hass avocado byproducts (peels and seeds). Studied processing variables were: temperature (45 °C–75 °C), air-flow (0.8 m/s to 1.8 m/s) and loading density (1 kg/m2 to 3 kg/m2). The response variables were Total Phenol Content (TPC) and Antioxidant Capacity (DPPH). Drying kinetic analysis revealed that seeds had higher water diffusivity than peels, but the latter showed shorter drying times. Multiple optimization routines allowed maximizing simultaneously DPPH and TPC. Thus, 62.82% and 54.81% of the initial TPC was retained in dehydrated peels and seeds, respectively. Sorption isotherms for both dehydrated byproducts showed that avocado seeds were more hygroscopic than peels, which was attributed to differences on their composition. This research has outlined a useful tool for the transformation of avocado wastes into storable commodities with high antioxidant properties which may have different food uses.spa
dc.identifierhttps://investigadores.uandes.cl/en/publications/c3234137-0baa-4cf3-81b4-f69741485764
dc.identifier.urihttps://repositorio.uandes.cl/handle/uandes/54826
dc.languageeng
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.sourcevol.198 (2017) date: 2017-04-01 p.81-90
dc.subjectByproducts
dc.subjectDrying
dc.subjectHass avocado
dc.subjectOptimization
dc.subjectPhenolic compounds
dc.subjectByproducts
dc.subjectDrying
dc.subjectHass avocado
dc.subjectOptimization
dc.subjectPhenolic compounds
dc.titleIndustrial avocado waste: Functional compounds preservation by convective drying processeng
dc.typeArticleeng
dc.typeArtículospa
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