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 | Acesso ao texto completo restrito à biblioteca da Embrapa Trigo. Para informações adicionais entre em contato com cnpt.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
10/01/2010 |
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Data da última atualização: |
05/12/2012 |
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Autoria: |
BHATTY, R. S.; SOSULSKI, F. W. |
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Título: |
Diffusion extraction of rapeseed glucosinolates with ethanolic sodium hydroxide. |
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Ano de publicação: |
1972 |
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Fonte/Imprenta: |
Journal of the American Oil Chemists' Society, Chicago, v. 49, n. 6, p. 346-350, 1972. |
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Idioma: |
Inglês |
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Conteúdo: |
Glucosinolates are readily diffused from whole rapeseed by repeated extractions with ethanolic sodium hydroxide. Four 2 hr extractions or six 1 hr extractions were most efficient for the diffusion of glucosinolates with minimum losses of other seed constituents. The ethanolic sodium hydroxide treatment inhibited myrosinase activity and lowered sulfur concentration in the oil. The oil from treated seed gave a higher hydrogenation number than the oil from untreated seed. The oil content of rapeseed was not substantially affected by the diffusion extraction process. Loss of diffused solids was ca. 15%, and loss of nitrogen did not exceed 10%. Most of the nitrogen diffused from the seed was nonprotein nitrogen. The principal disadvantages of the ethanolic sodium hydroxide procedure were reduced solubility of the rapeseed proteins and the higher fiber levels in the meals. The treated seed may be suitable, after partial dehulling or air classification, for the preparation of protein concentrates. |
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Thesagro: |
Extração; Método. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01478naa a2200157 a 4500
001 1834224
005 2012-12-05
008 1972 bl --- 0-- u #d
100 1 $aBHATTY, R. S.
245 $aDiffusion extraction of rapeseed glucosinolates with ethanolic sodium hydroxide.
260 $c1972
520 $aGlucosinolates are readily diffused from whole rapeseed by repeated extractions with ethanolic sodium hydroxide. Four 2 hr extractions or six 1 hr extractions were most efficient for the diffusion of glucosinolates with minimum losses of other seed constituents. The ethanolic sodium hydroxide treatment inhibited myrosinase activity and lowered sulfur concentration in the oil. The oil from treated seed gave a higher hydrogenation number than the oil from untreated seed. The oil content of rapeseed was not substantially affected by the diffusion extraction process. Loss of diffused solids was ca. 15%, and loss of nitrogen did not exceed 10%. Most of the nitrogen diffused from the seed was nonprotein nitrogen. The principal disadvantages of the ethanolic sodium hydroxide procedure were reduced solubility of the rapeseed proteins and the higher fiber levels in the meals. The treated seed may be suitable, after partial dehulling or air classification, for the preparation of protein concentrates.
650 $aExtração
650 $aMétodo
700 1 $aSOSULSKI, F. W.
773 $tJournal of the American Oil Chemists' Society, Chicago$gv. 49, n. 6, p. 346-350, 1972.
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Embrapa Trigo (CNPT) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Hortaliças. Para informações adicionais entre em contato com cnph.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
08/09/2003 |
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Data da última atualização: |
08/09/2003 |
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Autoria: |
OLIVEIRA, V. R.; FREIRE, F. M.; VENTURIM, R.; CARRIJO, O. A.; MACARENHAS, M. H. T. |
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Afiliação: |
Embrapa Hortaliças, Brasília, DF. |
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Título: |
Caracterização química de substratos para a produção de hortaliças |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Horticultura Brasileira, Brasília, v. 21, n. 2, jul. 2003. Suplemento 2. |
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Idioma: |
Português |
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Notas: |
Trabalho apresentado no 43º Congresso Brasileiro de Olericultura, 2003. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 21, n. 2, p. 288, jul. 2003. Suplemento 1. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00686naa a2200169 a 4500
001 1774522
005 2003-09-08
008 2003 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, V. R.
245 $aCaracterização química de substratos para a produção de hortaliças
260 $c2003
500 $aTrabalho apresentado no 43º Congresso Brasileiro de Olericultura, 2003. Publicado também como resumo em: Horticultura Brasileira, Brasília, v. 21, n. 2, p. 288, jul. 2003. Suplemento 1.
700 1 $aFREIRE, F. M.
700 1 $aVENTURIM, R.
700 1 $aCARRIJO, O. A.
700 1 $aMACARENHAS, M. H. T.
773 $tHorticultura Brasileira, Brasília$gv. 21, n. 2, jul. 2003. Suplemento 2.
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