Intermittent drying of clove basil leaves: Process optimization and essential oil yield
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, Aromati...
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Universidade Federal de Campina Grande
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| Online Access: | http://www.scielo.br/pdf/rbeaa/v24n3/1415-4366-rbeaa-24-03-0209.pdf |
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| author | Raiane A. de Souza Evandro de C. Melo Mariane B. R. de Ávila Diego A. Gonzaga Naiara C. Z. Sperotto Antônio P. S. Carneiro |
| author_facet | Raiane A. de Souza Evandro de C. Melo Mariane B. R. de Ávila Diego A. Gonzaga Naiara C. Z. Sperotto Antônio P. S. Carneiro |
| author_sort | Raiane A. de Souza |
| collection | DOAJ |
| 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. |
| format | Article |
| id | doaj-art-79dd934a525c4c968a2a7397d05f740d |
| institution | OA Journals |
| issn | 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-79dd934a525c4c968a2a7397d05f740d2025-08-20T02:25:50ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192910.1590/1807-1929/agriambi.v24n3p209-215Intermittent drying of clove basil leaves: Process optimization and essential oil yieldRaiane A. de SouzaEvandro de C. MeloMariane B. R. de ÁvilaDiego A. GonzagaNaiara C. Z. SperottoAntônio P. S. CarneiroABSTRACT 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.http://www.scielo.br/pdf/rbeaa/v24n3/1415-4366-rbeaa-24-03-0209.pdfOcimum gratissimum L.medicinal planttempering timeeffective drying timespecific energy consumption |
| spellingShingle | Raiane A. de Souza Evandro de C. Melo Mariane B. R. de Ávila Diego A. Gonzaga Naiara C. Z. Sperotto Antônio P. S. Carneiro Intermittent drying of clove basil leaves: Process optimization and essential oil yield Revista Brasileira de Engenharia Agrícola e Ambiental Ocimum gratissimum L. medicinal plant tempering time effective drying time specific energy consumption |
| title | 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_short | 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 |
| topic | Ocimum gratissimum L. medicinal plant tempering time effective drying time specific energy consumption |
| url | http://www.scielo.br/pdf/rbeaa/v24n3/1415-4366-rbeaa-24-03-0209.pdf |
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