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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
17/01/2008 |
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Data da última atualização: |
17/10/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DANTAS, B. F.; RIBEIRO, L. de S.; LUZ, S. R. de S.; LIMA FILHO, J. M. P. de; LIMA, M. A. C. de; SOUZA, C. R. de; BASSOI, L. H. |
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Afiliação: |
BARBARA FRANCA DANTAS, CPATSA; L. de Sá Ribeiro, CNPq; S. R. de Sousa Luz, CNPq; José Moacir Pinheiro de Lima Filho, CPATSA; MARIA AUXILIADORA COELHO DE LIMA, CPATSA; Cláudia Rita de Souza, CNPq; LUIS HENRIQUE BASSOI, CPATSA. |
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Título: |
Foliar carbohydrate content and invertase activity of Syrah and Moscato Canelli vines subjected to partial rootzone drying and regulated deficit irrigation. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Acta Horticulturae, Leuven, n. 754, p. 301-308, 2007. |
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Idioma: |
Inglês |
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Notas: |
Edição do Proceedings of the International Workshop on Advances in Grapevine and Wine Research, Venosa, Italy, Oct. 2007. |
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Conteúdo: |
Partial rootzone drying (PRD) and regulated deficit irrigation (RDI) has been studied in many wine-producing countries as irrigation techniques, which improves the water use efficiency, vigor control and maturation quality of wine grape production without significant crop reduction. This work aimed to compare leaf starch, reducing sugars (RS) and total soluble sugars (TSS), as well as the activities of cell wall acid invertase (CWAI), vacuole acid invertase (VAI) and citosol neutral invertase (CNI), in PRD and RDI treated vines at the São Francisco Valley (Brazil). Leaves of ?Syrah? and ?Moscato Canelli? grafted in two rootstocks (1103 Paulsen and IAC 572) were sampled throughout the day (8:00, 12:00 and 16:00 h) at the flowering, veraison and ripe fruits at June, July and August/2004, respectively. The RDI treatment induced higher leaf starch and RS contents in ?Syrah? vines. For ?Moscato Canelli? vines there was no significant difference among treatments. At flowering, in June/ 2004, the leaf carbohydrate metabolism was lower, probably due to the phenological stage and to lower temperatures and radiation. On the other hand, leaf carbohydrate contents were higher at veraison in August/2004. Leaf starch accumulation was higher at 16:00 h and TSS and RS contents were higher at 12:00 h. No differences of CWAI, VAI, CNI activities were observed among treatments, except for RDI that induced higher CWAI activity in ?Moscato Canelli?/? 1103 P?. Carbohydrate metabolism in vines was influenced by temperature and phenological stages. More studies are necessary for conclusive results for PRD and RDI influence on vine leaves carbohydrate metabolism. MenosPartial rootzone drying (PRD) and regulated deficit irrigation (RDI) has been studied in many wine-producing countries as irrigation techniques, which improves the water use efficiency, vigor control and maturation quality of wine grape production without significant crop reduction. This work aimed to compare leaf starch, reducing sugars (RS) and total soluble sugars (TSS), as well as the activities of cell wall acid invertase (CWAI), vacuole acid invertase (VAI) and citosol neutral invertase (CNI), in PRD and RDI treated vines at the São Francisco Valley (Brazil). Leaves of ?Syrah? and ?Moscato Canelli? grafted in two rootstocks (1103 Paulsen and IAC 572) were sampled throughout the day (8:00, 12:00 and 16:00 h) at the flowering, veraison and ripe fruits at June, July and August/2004, respectively. The RDI treatment induced higher leaf starch and RS contents in ?Syrah? vines. For ?Moscato Canelli? vines there was no significant difference among treatments. At flowering, in June/ 2004, the leaf carbohydrate metabolism was lower, probably due to the phenological stage and to lower temperatures and radiation. On the other hand, leaf carbohydrate contents were higher at veraison in August/2004. Leaf starch accumulation was higher at 16:00 h and TSS and RS contents were higher at 12:00 h. No differences of CWAI, VAI, CNI activities were observed among treatments, except for RDI that induced higher CWAI activity in ?Moscato Canelli?/? 1103 P?. Carbohydrate metabolism in vines was... Mostrar Tudo |
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Palavras-Chave: |
PRD; Videira. |
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Thesagro: |
Açúcar; Irrigação; Metabolismo; Planta Porta-Enxerto; Porta Enxerto; Uva; Variedade. |
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Thesaurus Nal: |
Grapes; Reducing sugars. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 02759naa a2200337 a 4500
001 1160348
005 2018-10-17
008 2007 bl uuuu u00u1 u #d
100 1 $aDANTAS, B. F.
245 $aFoliar carbohydrate content and invertase activity of Syrah and Moscato Canelli vines subjected to partial rootzone drying and regulated deficit irrigation.$h[electronic resource]
260 $c2007
500 $aEdição do Proceedings of the International Workshop on Advances in Grapevine and Wine Research, Venosa, Italy, Oct. 2007.
520 $aPartial rootzone drying (PRD) and regulated deficit irrigation (RDI) has been studied in many wine-producing countries as irrigation techniques, which improves the water use efficiency, vigor control and maturation quality of wine grape production without significant crop reduction. This work aimed to compare leaf starch, reducing sugars (RS) and total soluble sugars (TSS), as well as the activities of cell wall acid invertase (CWAI), vacuole acid invertase (VAI) and citosol neutral invertase (CNI), in PRD and RDI treated vines at the São Francisco Valley (Brazil). Leaves of ?Syrah? and ?Moscato Canelli? grafted in two rootstocks (1103 Paulsen and IAC 572) were sampled throughout the day (8:00, 12:00 and 16:00 h) at the flowering, veraison and ripe fruits at June, July and August/2004, respectively. The RDI treatment induced higher leaf starch and RS contents in ?Syrah? vines. For ?Moscato Canelli? vines there was no significant difference among treatments. At flowering, in June/ 2004, the leaf carbohydrate metabolism was lower, probably due to the phenological stage and to lower temperatures and radiation. On the other hand, leaf carbohydrate contents were higher at veraison in August/2004. Leaf starch accumulation was higher at 16:00 h and TSS and RS contents were higher at 12:00 h. No differences of CWAI, VAI, CNI activities were observed among treatments, except for RDI that induced higher CWAI activity in ?Moscato Canelli?/? 1103 P?. Carbohydrate metabolism in vines was influenced by temperature and phenological stages. More studies are necessary for conclusive results for PRD and RDI influence on vine leaves carbohydrate metabolism.
650 $aGrapes
650 $aReducing sugars
650 $aAçúcar
650 $aIrrigação
650 $aMetabolismo
650 $aPlanta Porta-Enxerto
650 $aPorta Enxerto
650 $aUva
650 $aVariedade
653 $aPRD
653 $aVideira
700 1 $aRIBEIRO, L. de S.
700 1 $aLUZ, S. R. de S.
700 1 $aLIMA FILHO, J. M. P. de
700 1 $aLIMA, M. A. C. de
700 1 $aSOUZA, C. R. de
700 1 $aBASSOI, L. H.
773 $tActa Horticulturae, Leuven$gn. 754, p. 301-308, 2007.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
23/11/2017 |
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Data da última atualização: |
04/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
LAZZAROTTO, S. R. da S.; BET, C. D.; HORNUNG, P. S.; LAZZAROTTO, M.; SCHNITZLER, E. |
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Afiliação: |
Simone Rosa da Silveira Lazzarotto, Doutoranda da UEPG; Camila Delinski Bet, UEPG; Polyanna Silveira Hornung, UFPR; MARCELO LAZZAROTTO, CNPF; Egon Schnitzler, UEPG. |
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Título: |
Induced effects by oxidation with potassium permanganate on the thermal, morphological, colorimetric and pasting properties of corn starch. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Ukrainian Food Journal, v. 6, n. 2, p. 197-210, 2017. |
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DOI: |
10.24263/2304- 974X-2017-6-2-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Introduction. Native starches are the most consumed polysaccharides in human diet. They are used in several industries as food, textile, pharmaceutic, etc. However due to some limitations starches should be modified chemically. Materials and methods. Corn starch modified with standard solutions of potassium permanganate (KMnO4) was analysed by simultaneous thermogravimetry-differential thermal analysis, differential scanning calorimetry, rapid viscoamylographic analysis, field emission gun-scanning electron microscopy/energy dispersive spectroscopy, X-ray powder diffraction and colorimetric analysis. Results and discussion. Corn starch was oxidised with KMnO4 at different concentrations (0.01; 0.02 and 0.05 mol L-1) at pH = 6.0 for 1 hour. (0.01; 0.02 and 0.05 mol L-1), pH = 6.0 for 1 hour. After filtered, washed and dried at 40 oC by 24 hours, the properties of the samples were investigated. Thermogravimetric curves showed an endothermic peak attributed to evaporation of water and two exothermic peaks, which refer to the decomposition and oxidation of organic matter until the formation of ash. A period of stability was observed, which decrease after modification. The gelatinisation of oxidised starch occurred at higher peak temperatures and also required higher gelatinisation enthalpy. The viscosity of the samples was significantly reduced and the relative crystallinity increased in proportion to the oxidant concentration used. Manganese and potassium content increased with the modification. There were no morphological changes after oxidation; however a darkening of the samples was identified due to the presence of potassium and manganese observed by energy dispersive spectroscopy (EDS). Conclusions. The obtained fluid paste with low retrogradation tendency suggests the application of oxidised starch in the paper industry. MenosIntroduction. Native starches are the most consumed polysaccharides in human diet. They are used in several industries as food, textile, pharmaceutic, etc. However due to some limitations starches should be modified chemically. Materials and methods. Corn starch modified with standard solutions of potassium permanganate (KMnO4) was analysed by simultaneous thermogravimetry-differential thermal analysis, differential scanning calorimetry, rapid viscoamylographic analysis, field emission gun-scanning electron microscopy/energy dispersive spectroscopy, X-ray powder diffraction and colorimetric analysis. Results and discussion. Corn starch was oxidised with KMnO4 at different concentrations (0.01; 0.02 and 0.05 mol L-1) at pH = 6.0 for 1 hour. (0.01; 0.02 and 0.05 mol L-1), pH = 6.0 for 1 hour. After filtered, washed and dried at 40 oC by 24 hours, the properties of the samples were investigated. Thermogravimetric curves showed an endothermic peak attributed to evaporation of water and two exothermic peaks, which refer to the decomposition and oxidation of organic matter until the formation of ash. A period of stability was observed, which decrease after modification. The gelatinisation of oxidised starch occurred at higher peak temperatures and also required higher gelatinisation enthalpy. The viscosity of the samples was significantly reduced and the relative crystallinity increased in proportion to the oxidant concentration used. Manganese and potassium content increased with... Mostrar Tudo |
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Thesagro: |
Amido; Milho; Oxidação; Permanganato de potássio. |
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Thesaurus NAL: |
Corn starch; Oxidation; Potassium permanganate. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/167360/1/2017-MarceloL-UFJ-Induced.pdf
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Marc: |
LEADER 02682naa a2200265 a 4500
001 2080555
005 2018-01-04
008 2017 bl uuuu u00u1 u #d
024 7 $a10.24263/2304- 974X-2017-6-2-3$2DOI
100 1 $aLAZZAROTTO, S. R. da S.
245 $aInduced effects by oxidation with potassium permanganate on the thermal, morphological, colorimetric and pasting properties of corn starch.$h[electronic resource]
260 $c2017
520 $aIntroduction. Native starches are the most consumed polysaccharides in human diet. They are used in several industries as food, textile, pharmaceutic, etc. However due to some limitations starches should be modified chemically. Materials and methods. Corn starch modified with standard solutions of potassium permanganate (KMnO4) was analysed by simultaneous thermogravimetry-differential thermal analysis, differential scanning calorimetry, rapid viscoamylographic analysis, field emission gun-scanning electron microscopy/energy dispersive spectroscopy, X-ray powder diffraction and colorimetric analysis. Results and discussion. Corn starch was oxidised with KMnO4 at different concentrations (0.01; 0.02 and 0.05 mol L-1) at pH = 6.0 for 1 hour. (0.01; 0.02 and 0.05 mol L-1), pH = 6.0 for 1 hour. After filtered, washed and dried at 40 oC by 24 hours, the properties of the samples were investigated. Thermogravimetric curves showed an endothermic peak attributed to evaporation of water and two exothermic peaks, which refer to the decomposition and oxidation of organic matter until the formation of ash. A period of stability was observed, which decrease after modification. The gelatinisation of oxidised starch occurred at higher peak temperatures and also required higher gelatinisation enthalpy. The viscosity of the samples was significantly reduced and the relative crystallinity increased in proportion to the oxidant concentration used. Manganese and potassium content increased with the modification. There were no morphological changes after oxidation; however a darkening of the samples was identified due to the presence of potassium and manganese observed by energy dispersive spectroscopy (EDS). Conclusions. The obtained fluid paste with low retrogradation tendency suggests the application of oxidised starch in the paper industry.
650 $aCorn starch
650 $aOxidation
650 $aPotassium permanganate
650 $aAmido
650 $aMilho
650 $aOxidação
650 $aPermanganato de potássio
700 1 $aBET, C. D.
700 1 $aHORNUNG, P. S.
700 1 $aLAZZAROTTO, M.
700 1 $aSCHNITZLER, E.
773 $tUkrainian Food Journal$gv. 6, n. 2, p. 197-210, 2017.
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