Drying process: effects of temperature on the oil of different sunflower genotypes

ABSTRACT Drying is a critical stage in postharvest grain processing and alters its structural and physiological characteristics, affecting the quality of the final product. This study aimed to assess the effect of drying sunflower achenes on oil content. A randomized block design was used, in a 5 x...

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Autores principales:	Soares Wenneck,Gustavo, Saath,Reni, Rezende,Roberto, Parisotto Poletine,Juliana, Santi,Danilo César, Araújo,Larissa Leite de
Lenguaje:	English
Publicado:	Universidad de Tarapacá. Facultad de Ciencias Agronómicas 2020
Materias:	Heat stress Helianthus annuus L. postharvest quality yield
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292020000100093
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spelling	oai:scielo:S0718-342920200001000932020-07-30Drying process: effects of temperature on the oil of different sunflower genotypesSoares Wenneck,GustavoSaath,ReniRezende,RobertoParisotto Poletine,JulianaSanti,Danilo CésarAraújo,Larissa Leite de Heat stress Helianthus annuus L. postharvest quality yield ABSTRACT Drying is a critical stage in postharvest grain processing and alters its structural and physiological characteristics, affecting the quality of the final product. This study aimed to assess the effect of drying sunflower achenes on oil content. A randomized block design was used, in a 5 x 4 factorial scheme consisting of four drying treatments (35, 40, 50 and 70 °C) in a forced-air dryer and one under uncontrolled conditions (drying terrace), with four repetitions. Oil content and acid value were analyzed in oil extracted from the achenes of 13 sunflower genotypes grown under the same conditions, whose moisture content declined from 30 to 8 % (dry basic) under different drying temperatures. Data were analyzed using the Scott-Knott test (p < 0.05). Drying under controlled conditions at high temperatures (50 and 70 0C) reduced the achene oil content for all the genotypes assessed, with an acid value close to (50 °C) or above (70 °C) the maximum legal limit. Uncontrolled drying and controlled low temperatures (35 and 40 oQ showed no significant variations in oil content or acid value.info:eu-repo/semantics/openAccessUniversidad de Tarapacá. Facultad de Ciencias AgronómicasIdesia (Arica) v.38 n.1 20202020-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292020000100093en10.4067/S0718-34292020000100093
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Heat stress Helianthus annuus L. postharvest quality yield
spellingShingle	Heat stress Helianthus annuus L. postharvest quality yield Soares Wenneck,Gustavo Saath,Reni Rezende,Roberto Parisotto Poletine,Juliana Santi,Danilo César Araújo,Larissa Leite de Drying process: effects of temperature on the oil of different sunflower genotypes
description	ABSTRACT Drying is a critical stage in postharvest grain processing and alters its structural and physiological characteristics, affecting the quality of the final product. This study aimed to assess the effect of drying sunflower achenes on oil content. A randomized block design was used, in a 5 x 4 factorial scheme consisting of four drying treatments (35, 40, 50 and 70 °C) in a forced-air dryer and one under uncontrolled conditions (drying terrace), with four repetitions. Oil content and acid value were analyzed in oil extracted from the achenes of 13 sunflower genotypes grown under the same conditions, whose moisture content declined from 30 to 8 % (dry basic) under different drying temperatures. Data were analyzed using the Scott-Knott test (p < 0.05). Drying under controlled conditions at high temperatures (50 and 70 0C) reduced the achene oil content for all the genotypes assessed, with an acid value close to (50 °C) or above (70 °C) the maximum legal limit. Uncontrolled drying and controlled low temperatures (35 and 40 oQ showed no significant variations in oil content or acid value.
author	Soares Wenneck,Gustavo Saath,Reni Rezende,Roberto Parisotto Poletine,Juliana Santi,Danilo César Araújo,Larissa Leite de
author_facet	Soares Wenneck,Gustavo Saath,Reni Rezende,Roberto Parisotto Poletine,Juliana Santi,Danilo César Araújo,Larissa Leite de
author_sort	Soares Wenneck,Gustavo
title	Drying process: effects of temperature on the oil of different sunflower genotypes
title_short	Drying process: effects of temperature on the oil of different sunflower genotypes
title_full	Drying process: effects of temperature on the oil of different sunflower genotypes
title_fullStr	Drying process: effects of temperature on the oil of different sunflower genotypes
title_full_unstemmed	Drying process: effects of temperature on the oil of different sunflower genotypes
title_sort	drying process: effects of temperature on the oil of different sunflower genotypes
publisher	Universidad de Tarapacá. Facultad de Ciencias Agronómicas
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292020000100093
work_keys_str_mv	AT soareswenneckgustavo dryingprocesseffectsoftemperatureontheoilofdifferentsunflowergenotypes AT saathreni dryingprocesseffectsoftemperatureontheoilofdifferentsunflowergenotypes AT rezenderoberto dryingprocesseffectsoftemperatureontheoilofdifferentsunflowergenotypes AT parisottopoletinejuliana dryingprocesseffectsoftemperatureontheoilofdifferentsunflowergenotypes AT santidanilocesar dryingprocesseffectsoftemperatureontheoilofdifferentsunflowergenotypes AT araujolarissaleitede dryingprocesseffectsoftemperatureontheoilofdifferentsunflowergenotypes
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Drying process: effects of temperature on the oil of different sunflower genotypes

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