Intermittent drying of clove basil leaves: Process optimization and essential oil yield

Detalhes bibliográficos
Autor(a) principal: Souza,Raiane A. de
Data de Publicação: 2020
Outros Autores: Melo,Evandro de C., Ávila,Mariane B. R. de, Gonzaga,Diego A., Sperotto,Naiara C. Z., Carneiro,Antônio P. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000300209
Resumo: ABSTRACT This study investigated the effect of a drying method with intermittent ratios on the effective drying time, specific energy consumption and essential oil yield of clove basil (Ocimum gratissimum L.) leaves. The drying tests were conducted at the Postharvest Laboratory of Medicinal, Aromatic and Condiment Plants, from the Departamento de Engenharia Agrícola of the Universidade Federal de Viçosa, Viçosa, MG, Brazil (20° 46’ 13.5” S; 42° 52’ 23.3” W, and altitude of 645 m) in October and November 2017. The experiment was conducted by using a 3 × 4 factorial scheme including three drying temperatures at 50, 60 and 70 °C, with four drying processes: continuous drying and the following three intermittent drying/tempering ratios in minutes: 10/20, 15/15 and 20/10. The design was completely randomized and with three repetitions. The application of the 10/20 intermittent ratio reduced the effective drying time and the specific energy consumption. Regarding the essential oil yield, the use of the intermittence presented different results for each temperature of drying; the highest yields were observed with continuous drying at 50 °C and drying with the 20/10 intermittent ratio at 60 °C. The results indicate that intermittent drying at 50 °C is not recommended to preserve essential oil yields.
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spelling Intermittent drying of clove basil leaves: Process optimization and essential oil yieldOcimum gratissimum L.medicinal planttempering timeeffective drying timespecific energy consumptionABSTRACT This study investigated the effect of a drying method with intermittent ratios on the effective drying time, specific energy consumption and essential oil yield of clove basil (Ocimum gratissimum L.) leaves. The drying tests were conducted at the Postharvest Laboratory of Medicinal, Aromatic and Condiment Plants, from the Departamento de Engenharia Agrícola of the Universidade Federal de Viçosa, Viçosa, MG, Brazil (20° 46’ 13.5” S; 42° 52’ 23.3” W, and altitude of 645 m) in October and November 2017. The experiment was conducted by using a 3 × 4 factorial scheme including three drying temperatures at 50, 60 and 70 °C, with four drying processes: continuous drying and the following three intermittent drying/tempering ratios in minutes: 10/20, 15/15 and 20/10. The design was completely randomized and with three repetitions. The application of the 10/20 intermittent ratio reduced the effective drying time and the specific energy consumption. Regarding the essential oil yield, the use of the intermittence presented different results for each temperature of drying; the highest yields were observed with continuous drying at 50 °C and drying with the 20/10 intermittent ratio at 60 °C. The results indicate that intermittent drying at 50 °C is not recommended to preserve essential oil yields.Departamento de Engenharia Agrícola - UFCG2020-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000300209Revista Brasileira de Engenharia Agrícola e Ambiental v.24 n.3 2020reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v24n3p209-215info:eu-repo/semantics/openAccessSouza,Raiane A. deMelo,Evandro de C.Ávila,Mariane B. R. deGonzaga,Diego A.Sperotto,Naiara C. Z.Carneiro,Antônio P. S.eng2020-02-27T00:00:00Zoai:scielo:S1415-43662020000300209Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2020-02-27T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false
dc.title.none.fl_str_mv Intermittent drying of clove basil leaves: Process optimization and essential oil yield
title Intermittent drying of clove basil leaves: Process optimization and essential oil yield
spellingShingle Intermittent drying of clove basil leaves: Process optimization and essential oil yield
Souza,Raiane A. de
Ocimum gratissimum L.
medicinal plant
tempering time
effective drying time
specific energy consumption
title_short Intermittent drying of clove basil leaves: Process optimization and essential oil yield
title_full Intermittent drying of clove basil leaves: Process optimization and essential oil yield
title_fullStr Intermittent drying of clove basil leaves: Process optimization and essential oil yield
title_full_unstemmed Intermittent drying of clove basil leaves: Process optimization and essential oil yield
title_sort Intermittent drying of clove basil leaves: Process optimization and essential oil yield
author Souza,Raiane A. de
author_facet Souza,Raiane A. de
Melo,Evandro de C.
Ávila,Mariane B. R. de
Gonzaga,Diego A.
Sperotto,Naiara C. Z.
Carneiro,Antônio P. S.
author_role author
author2 Melo,Evandro de C.
Ávila,Mariane B. R. de
Gonzaga,Diego A.
Sperotto,Naiara C. Z.
Carneiro,Antônio P. S.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Souza,Raiane A. de
Melo,Evandro de C.
Ávila,Mariane B. R. de
Gonzaga,Diego A.
Sperotto,Naiara C. Z.
Carneiro,Antônio P. S.
dc.subject.por.fl_str_mv Ocimum gratissimum L.
medicinal plant
tempering time
effective drying time
specific energy consumption
topic Ocimum gratissimum L.
medicinal plant
tempering time
effective drying time
specific energy consumption
description ABSTRACT This study investigated the effect of a drying method with intermittent ratios on the effective drying time, specific energy consumption and essential oil yield of clove basil (Ocimum gratissimum L.) leaves. The drying tests were conducted at the Postharvest Laboratory of Medicinal, Aromatic and Condiment Plants, from the Departamento de Engenharia Agrícola of the Universidade Federal de Viçosa, Viçosa, MG, Brazil (20° 46’ 13.5” S; 42° 52’ 23.3” W, and altitude of 645 m) in October and November 2017. The experiment was conducted by using a 3 × 4 factorial scheme including three drying temperatures at 50, 60 and 70 °C, with four drying processes: continuous drying and the following three intermittent drying/tempering ratios in minutes: 10/20, 15/15 and 20/10. The design was completely randomized and with three repetitions. The application of the 10/20 intermittent ratio reduced the effective drying time and the specific energy consumption. Regarding the essential oil yield, the use of the intermittence presented different results for each temperature of drying; the highest yields were observed with continuous drying at 50 °C and drying with the 20/10 intermittent ratio at 60 °C. The results indicate that intermittent drying at 50 °C is not recommended to preserve essential oil yields.
publishDate 2020
dc.date.none.fl_str_mv 2020-03-01
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000300209
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.1590/1807-1929/agriambi.v24n3p209-215
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dc.publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
dc.source.none.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental v.24 n.3 2020
reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
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instname_str Universidade Federal de Campina Grande (UFCG)
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repository.name.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)
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