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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
12/06/1996 |
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Data da última atualização: |
12/06/1996 |
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Autoria: |
ALI, Z. M.; ARMUGAM, S.; LAZAN, H. |
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Afiliação: |
Faculty of Lief Sciences, Universiti Kebangsaan Malaysia, Bangi, 43600Selangro,Malaysia. |
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Título: |
B-galactosidase and its significance in ripening mango fruit. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Phytochemistry, v.38, n.5, p.1109-1114, 1995. |
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Idioma: |
Inglês |
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Conteúdo: |
The fruit extracts of ripening cv. Harumanis mango contained a number of glycosidases and glycanases. Among the glycosidases, B-D-galactosidase (EC 3.2.1.23) appeared to be the most significant. The enzyme activity increased in parallel with increase in tissue softness during ripening. Mango B-galactosidase was fractionated into three isoforms, viz.B-galactosidase I,II and III by a combination of chromatographic procedures on DEAE-Sepharase CL-6B, CM-Sepharose and sephacryl S-200 columns. Apparent Km values for the respective B-galactosidase isoforms for p-nitrophenyl B-D-galactoside were 3.7, 3.3 and 2.7 mM, and their V max values were 209, 1024 and 62 nkat mg-1 protein. Optimum activity occurred at ca pH 3.2 for b-galactosidase I and II, and pH 3.6 forB-galactosidase III. Mango B-galactosidase and its isoforms have galactanase activity, and the activity of the latter in the crude extracts generally increased during ripening. The close correlation between changes in B-galactosidase activity, tissue softness, and increased pectin solubility and degradation suggests that B-galactosidase might play an important role in cell wall pectin modification and softening of mango fruit during ripening. |
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Palavras-Chave: |
B-galactosidase; Harvest; Maduro; Mango fruit; Pectin degradation; Softening. |
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Thesagro: |
Anacardiaceae; Colheita; Manga; Mangifera Indica. |
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Thesaurus Nal: |
ripening. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01894naa a2200277 a 4500
001 1634345
005 1996-06-12
008 1995 bl uuuu u00u1 u #d
100 1 $aALI, Z. M.
245 $aB-galactosidase and its significance in ripening mango fruit.
260 $c1995
520 $aThe fruit extracts of ripening cv. Harumanis mango contained a number of glycosidases and glycanases. Among the glycosidases, B-D-galactosidase (EC 3.2.1.23) appeared to be the most significant. The enzyme activity increased in parallel with increase in tissue softness during ripening. Mango B-galactosidase was fractionated into three isoforms, viz.B-galactosidase I,II and III by a combination of chromatographic procedures on DEAE-Sepharase CL-6B, CM-Sepharose and sephacryl S-200 columns. Apparent Km values for the respective B-galactosidase isoforms for p-nitrophenyl B-D-galactoside were 3.7, 3.3 and 2.7 mM, and their V max values were 209, 1024 and 62 nkat mg-1 protein. Optimum activity occurred at ca pH 3.2 for b-galactosidase I and II, and pH 3.6 forB-galactosidase III. Mango B-galactosidase and its isoforms have galactanase activity, and the activity of the latter in the crude extracts generally increased during ripening. The close correlation between changes in B-galactosidase activity, tissue softness, and increased pectin solubility and degradation suggests that B-galactosidase might play an important role in cell wall pectin modification and softening of mango fruit during ripening.
650 $aripening
650 $aAnacardiaceae
650 $aColheita
650 $aManga
650 $aMangifera Indica
653 $aB-galactosidase
653 $aHarvest
653 $aMaduro
653 $aMango fruit
653 $aPectin degradation
653 $aSoftening
700 1 $aARMUGAM, S.
700 1 $aLAZAN, H.
773 $tPhytochemistry$gv.38, n.5, p.1109-1114, 1995.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
19/04/2005 |
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Data da última atualização: |
17/01/2020 |
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Autoria: |
NESHICH, G.; YAMAGISHI, M. E. B.; ROCCHIA, W.; MANCINI, A. L.; FALCAO, P. R. K.; FILETO, R.; BAUDET, C.; PINTO, I. P.; MONTAGNER, A. J.; PALANDRANI, J. F.; KRAUCHENCO, J. N.; TORRES, R. C.; BEZERRA, G. B. P.; SOUZA, S.; TOGAWA, R. C.; HIGA, R. H. |
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Afiliação: |
GORAN NESHICH, CNPTIA; MICHEL EDUARDO BELEZA YAMAGISHI, CNPTIA; WALTER ROCCHIA, Scuola Normale Superiore, Piazza dei Cavalieri; ADAUTO LUIZ MANCINI, CNPTIA; PAULA REGINA KUSER FALCAO, CNPTIA; RENATO FILETO; CHRISTIAN BAUDET; IVAN P. PINTO; ARNALDO J. MONTAGNER; JULIANA F. PALANDRANI; JOÃO N. KRAUCHENCO; RENATO C. TORRES; GEORGE B. P. BEZERRA; SAVIO SOUZA; ROBERTO COITI TOGAWA, Cenargen; ROBERTO HIROSHI HIGA, CNPTIA. |
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Título: |
Protein structure analysis and visualization using Java Protein Dossier. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON CHEMOMETRICS AND BIOINFORMATICS IN ASIA, 2004, Shanghai. Proceedings... Shanghai: [s.n.], 2004. |
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Páginas: |
1 p. |
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Idioma: |
Inglês |
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Notas: |
CCBA 2004. Na publicação: Paula R. Kuser. |
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Palavras-Chave: |
Estrutura de proteína; Sting; Visualização. |
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Thesagro: |
Proteina. |
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Thesaurus NAL: |
Protein structure; Proteins. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01122nam a2200373 a 4500
001 1007644
005 2020-01-17
008 2004 bl uuuu u00u1 u #d
100 1 $aNESHICH, G.
245 $aProtein structure analysis and visualization using Java Protein Dossier.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE ON CHEMOMETRICS AND BIOINFORMATICS IN ASIA, 2004, Shanghai. Proceedings... Shanghai: [s.n.]$c2004
300 $a1 p.
500 $aCCBA 2004. Na publicação: Paula R. Kuser.
650 $aProtein structure
650 $aProteins
650 $aProteina
653 $aEstrutura de proteína
653 $aSting
653 $aVisualização
700 1 $aYAMAGISHI, M. E. B.
700 1 $aROCCHIA, W.
700 1 $aMANCINI, A. L.
700 1 $aFALCAO, P. R. K.
700 1 $aFILETO, R.
700 1 $aBAUDET, C.
700 1 $aPINTO, I. P.
700 1 $aMONTAGNER, A. J.
700 1 $aPALANDRANI, J. F.
700 1 $aKRAUCHENCO, J. N.
700 1 $aTORRES, R. C.
700 1 $aBEZERRA, G. B. P.
700 1 $aSOUZA, S.
700 1 $aTOGAWA, R. C.
700 1 $aHIGA, R. H.
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Embrapa Agricultura Digital (CNPTIA) |
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