Data/hora: 06/06/2024 06:46:22

Provedor de dados: | 95
País: | Brazil
Título: | Drying peanut seed using air ambient temperature at low relative humidity
Autores: | Krzyzanowski,Francisco Carlos; West,Sherlie Hill; França Neto,José de Barros.
Data: | 2006-12-01
Ano: | 2006
Palavras-chave: | Arachis hypogaea; Quality; Vigor; Germination; Conditioning.
Resumo: | The moisture content of peanut kernel (Arachis hypogaea L.) at digging ranges from 30 to 50% on a wet basis (w.b.). The seed moisture content must be reduced to 10.5% or below before seeds can be graded and marketed. After digging, peanuts are cured on a window sill for two to five days then mechanically separated from the vine. Heated air is used to further dry the peanuts from approximately 18 to 10% moisture content w.b. Drying is required to maintain peanut seed and grain quality. Traditional dryers pass a high temperature and high humidity air stream through the seed mass. The drying time is long because the system is inefficient and the high temperature increases the risk of thermal damage to the kernels. New technology identified as heat pipe technology (HPT) is available and has the unique feature of removing the moisture from the air stream before it is heated and passed through the seed. A study was conducted to evaluate the performance of the HPT system in drying peanut seed. The seeds inside the shells were dried from 17.4 to 7.3% in 14 hours and 11 minutes, with a rate of moisture removal of 0.71% mc per hour. This drying process caused no reduction in seed quality as measured by the standard germination, accelerated ageing and field emergence tests. It was concluded that the HPT system is a promising technology for drying peanut seed when efficiency and maintenance of physiological quality are desired.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222006000300001
Editor: | Associação Brasileira de Tecnologia de Sementes
Relação: | 10.1590/S0101-31222006000300001
Formato: | text/html
Fonte: | Revista Brasileira de Sementes  v.28 n.3 2006
Fonte: | info:eu-repo/semantics/openAccess