| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
23/11/2017 |
|
Data da última atualização: |
04/01/2018 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
LAZZAROTTO, S. R. da S.; BET, C. D.; HORNUNG, P. S.; LAZZAROTTO, M.; SCHNITZLER, E. |
|
Afiliação: |
Simone Rosa da Silveira Lazzarotto, Doutoranda da UEPG; Camila Delinski Bet, UEPG; Polyanna Silveira Hornung, UFPR; MARCELO LAZZAROTTO, CNPF; Egon Schnitzler, UEPG. |
|
Título: |
Induced effects by oxidation with potassium permanganate on the thermal, morphological, colorimetric and pasting properties of corn starch. |
|
Ano de publicação: |
2017 |
|
Fonte/Imprenta: |
Ukrainian Food Journal, v. 6, n. 2, p. 197-210, 2017. |
|
DOI: |
10.24263/2304- 974X-2017-6-2-3 |
|
Idioma: |
Inglês |
|
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 |
|
Thesagro: |
Amido; Milho; Oxidação; Permanganato de potássio. |
|
Thesaurus Nal: |
Corn starch; Oxidation; Potassium permanganate. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/167360/1/2017-MarceloL-UFJ-Induced.pdf
|
|
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.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
18/09/2017 |
|
Data da última atualização: |
12/06/2019 |
|
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
|
Autoria: |
GIONGO, V.; SANTANA, M. da S.; BRANDÃO, S. da S.; SALVIANO, A. M.; COSTA, N. D.; YURI, J. E.; VEZZANI, F. M. |
|
Afiliação: |
VANDERLISE GIONGO, CPATSA; MÔNICA DA SILVA SANTANA, UFPE; SHEILA DA SILVA BRANDÃO; ALESSANDRA MONTEIRO SALVIANO, CPATSA; NIVALDO DUARTE COSTA, CPATSA; JONY EISHI YURI, CPATSA; FABIANE MACHADO VEZZANI, Professora da Universidade Federal do Paraná. |
|
Título: |
Sistema conservacionista de cultivo de melão utilizando coquetéis vegetais no Submédio São Francisco. |
|
Ano de publicação: |
2017 |
|
Fonte/Imprenta: |
In: FIGUEIREDO, M. C. B. de; GONDIM, R. S.; ARAGÃO, F. A. S. de (Ed.). Produção de melão e mudanças climáticas: sistemas conservacionistas de cultivo para redução das pegadas de carbono e hídrica. Brasília, DF: Embrapa, 2017. |
|
Páginas: |
cap. 2, p. 231-253. |
|
ISBN: |
978-85-7035-675-8 |
|
Idioma: |
Português |
|
Conteúdo: |
Este capítulo apresenta estudos que corroboram a importância da adubação verde no cultivo do meloeiro irrigado por favorecer a produção de melão, melhorar a ciclagem de nutrientes e manter e/ou incrementar o teor de matéria orgânica e carbono no solo. |
|
Palavras-Chave: |
Carbono no solo; Green manure; Melon; Planta de corbertura. |
|
Thesagro: |
Adubação de cobertura; Adubação verde; Cobertura Morta; Matéria orgânica; Melão. |
|
Categoria do assunto: |
A Sistemas de Cultivo |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/198498/1/producao-de-melao-pag-231-253.pdf
|
|
Marc: |
LEADER 01363naa a2200325 a 4500
001 2075716
005 2019-06-12
008 2017 bl uuuu u00u1 u #d
020 $a978-85-7035-675-8
100 1 $aGIONGO, V.
245 $aSistema conservacionista de cultivo de melão utilizando coquetéis vegetais no Submédio São Francisco.
260 $c2017
300 $acap. 2, p. 231-253.
520 $aEste capítulo apresenta estudos que corroboram a importância da adubação verde no cultivo do meloeiro irrigado por favorecer a produção de melão, melhorar a ciclagem de nutrientes e manter e/ou incrementar o teor de matéria orgânica e carbono no solo.
650 $aAdubação de cobertura
650 $aAdubação verde
650 $aCobertura Morta
650 $aMatéria orgânica
650 $aMelão
653 $aCarbono no solo
653 $aGreen manure
653 $aMelon
653 $aPlanta de corbertura
700 1 $aSANTANA, M. da S.
700 1 $aBRANDÃO, S. da S.
700 1 $aSALVIANO, A. M.
700 1 $aCOSTA, N. D.
700 1 $aYURI, J. E.
700 1 $aVEZZANI, F. M.
773 $tIn: FIGUEIREDO, M. C. B. de; GONDIM, R. S.; ARAGÃO, F. A. S. de (Ed.). Produção de melão e mudanças climáticas: sistemas conservacionistas de cultivo para redução das pegadas de carbono e hídrica. Brasília, DF: Embrapa, 2017.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
