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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
14/05/2007 |
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Data da última atualização: |
02/12/2011 |
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Autoria: |
KRZYZANOWSKI, F. C.; WEST, S. H.; FRANÇA NETO, J. de B. |
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Título: |
Drying peanut seed using air ambient temperature at low relative humidity. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Revista Brasileira de Sementes, Pelotas, v. 28, n. 3, p. 1-5, Dec. 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
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. |
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Palavras-Chave: |
Condicionamento. |
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Thesagro: |
Amendoim; Arachis Hypogaea; Germinação; Qualidade; Semente. |
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Thesaurus Nal: |
vigor. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49046/1/27192.pdf
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Marc: |
LEADER 02073naa a2200229 a 4500
001 1469995
005 2011-12-02
008 2006 bl uuuu u00u1 u #d
100 1 $aKRZYZANOWSKI, F. C.
245 $aDrying peanut seed using air ambient temperature at low relative humidity.
260 $c2006
520 $aThe 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.
650 $avigor
650 $aAmendoim
650 $aArachis Hypogaea
650 $aGerminação
650 $aQualidade
650 $aSemente
653 $aCondicionamento
700 1 $aWEST, S. H.
700 1 $aFRANÇA NETO, J. de B.
773 $tRevista Brasileira de Sementes, Pelotas$gv. 28, n. 3, p. 1-5, Dec. 2006.
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Embrapa Soja (CNPSO) |
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