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| Registros recuperados : 78 | |
| 23. |  | PEZZATO, A. C.; SILVEIRA, A. C.; PEZZATO, L. E.; ARRIGONI, M. de B. Substituição do farelo de soja pelo de guandu na alimentação de frangos de corte. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 32, n. 2, p. 123-132, fev. 1997. Título em inglês: Substitution of soybean by pigeon pea meal in broiler feed.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 24. | | PUOLI FILHO, J. N. P.; COSTA, C.; ARRIGONI, M. de B.; SILVEIRA, A. C. Suplementação mineral e mobilização de cálcio nos ossos de equinos em pastagem de Brachiaria humidicola. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 5, p. 873-78, maio 1999 Título em inglês: Effect of mineral supplement on calcium mobilization from bone of equine grazing Brachiaria humidicola.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 28. | | TOSI, H.; FARIA, V. P. de; GUTIERREZ, L. E.; SILVEIRA, A. C. Avaliação do capim-elefante, cultivar Taiwan A-148, como planta para ensilagem. Pesquisa Agropecuária Brasileira, Brasília, v.18, n.3, p. 295-299, mar. 1983. Título em inglês: Evaluation of elephant grass Taiwan A-148 cultivar for ensilage.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 29. | | CURI, R. A.; CHARDULO, L. A. L.; SILVEIRA, A. C.; OLIVEIRA, H. N. de. Alternative genotyping method for the single nucleotide polymorphism A2959G (AF159246) of the bovine CAST gene. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 43, n. 5, p. 657-659, maio 2008 Notas Científicas.
Títulos em português: Método alternativo de genotipagem do polimorfismo de nucleotídeo único A2959G (AF159246) do gene CAST bovino.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 35. | | TOSI, H.; FARIA, V. P. de; SILVEIRA, A. C.; PEREIRA, R. L. Avaliação de leguminosas forrageiras de origem tropical como plantas para ensilagem. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 10, n. 4, p. 19-22, 1975. (Zootecnia). Título em inglês: Evaluation of tropical legumes as plants for the ensilagem.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 36. | | ARRIGONI, M. B.; SILVEIRA, A. C.; FURLAN, L. R.; PARRE, C.; COSTA, C.; CURI, P. R. Avaliação da vinhaça Liquida em substituição a água na terminação de bovinos em confinamento. 2. Parâmetros e etológicos e perfil metabólico. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 29, n. 1, p. 133-137. jan. 1994. Título em inglês: Evaluations of canes stillage in sustitution feedlot. 2. Behavioer and metabolic profile.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 37. | | MAGLIOCCA, F. de C.; SILVEIRA, A. C.; FURLAN, L. R.; ARRIGONI, M. de B.; COSTA, C. Efeito da niacina e da monensina sódica no desempenho de novilhos em confinamento. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 29, n. 6, p. 983-988. jun. 1994. Título em inglês: The effect niacin and monensin of the performance of young bulls et feedlot.| Biblioteca(s): Embrapa Tabuleiros Costeiros; Embrapa Unidades Centrais. |
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| 39. | | PEZZATO, A. C.; SILVEIRA, A. C.; FURLAN, L. R.; PEZZATO, L. E.; COSTA, C. Estudo do valor nutritivo do farelo de guandu (Cajanus cajan (L.) Millps) var. fava larga na alimentação de frangos de corte. 1. Avaliação do tratamento térmico. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 30, n. 5, p. 569-576, maio 1995. Título em inglês: Study on the nutrition value of pigeon pea meal (Cajanus cajan (L.) Millps) in broiler feed.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 78 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
12/09/2019 |
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Data da última atualização: |
10/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SIQUEIRA, G. L. de A. de; SILVEIRA, A. C. da; LAZZAROTTO, S. R. da S.; GODOY, R. C. B. de; SCHNITZLER, E.; LAZZAROTTO, M. |
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Afiliação: |
Geisa Liandra de Andrade de Siqueira, Mestranda da UEPG; Ana Claudia da Silveira, UFPR; Simone Rosa da Silveira Lazzarotto, Doutoranda da UEPG; ROSSANA CATIE BUENO DE GODOY, CNPF; Egon Schnitzler, UEPG; MARCELO LAZZAROTTO, CNPF. |
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Título: |
Hydrolysis of the low gelatinization temperature Araucaria angustifolia pine seed starch. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Thermal Analysis and Calorimetry, v. 138, n. 2, p. 1269-1278, Oct. 2019. |
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DOI: |
10.1007/s10973-019-08180-1 |
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Idioma: |
Inglês |
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Conteúdo: |
Starch is the most abundant carbohydrate found in grains, roots and tubers. Modified starches are employed to overcome most of native starch limitations in industrial applications. Pinhão is the seed of Araucaria angustifolia and starch is approximately 36% of its composition. Acid hydrolysis changes the starch physicochemical properties without impairing the granular structure. The native and hydrochloric acid- modified (0.1 and 0.5 mol L−1) pinhão starches were investigated using thermal (TG-DTA and DSC), rheological (RVA), structural (XRD and SEM) and statistical analysis (ANOVA and Tukey). The aim of this study was to evaluate the effects of acid modification of pinhão starches in aqueous solutions. The starches were chosen because of their low gelatinization temperature (below 60 °C). TG-DTA results in air atmosphere showed that treated samples presented higher thermal stability. The same analysis using nitrogen atmosphere showed similarities between the samples. DSC results indicate that highest acid concentrations promoted crystallinity reduction and losses in the internal structure of the granule. The genetic sources demonstrated different behaviors. The viscosity parameters decreased with the intensity of acid treatment. The XRD identified the type C pattern for the starches and the relative crystallinity increased according to the intensity of the acid hydrolysis. Superficial changes in the granules were observed by SEM. Therefore, modified pinhão starch has potential use for industrial applications. Further studies are necessary to extend these applications. MenosStarch is the most abundant carbohydrate found in grains, roots and tubers. Modified starches are employed to overcome most of native starch limitations in industrial applications. Pinhão is the seed of Araucaria angustifolia and starch is approximately 36% of its composition. Acid hydrolysis changes the starch physicochemical properties without impairing the granular structure. The native and hydrochloric acid- modified (0.1 and 0.5 mol L−1) pinhão starches were investigated using thermal (TG-DTA and DSC), rheological (RVA), structural (XRD and SEM) and statistical analysis (ANOVA and Tukey). The aim of this study was to evaluate the effects of acid modification of pinhão starches in aqueous solutions. The starches were chosen because of their low gelatinization temperature (below 60 °C). TG-DTA results in air atmosphere showed that treated samples presented higher thermal stability. The same analysis using nitrogen atmosphere showed similarities between the samples. DSC results indicate that highest acid concentrations promoted crystallinity reduction and losses in the internal structure of the granule. The genetic sources demonstrated different behaviors. The viscosity parameters decreased with the intensity of acid treatment. The XRD identified the type C pattern for the starches and the relative crystallinity increased according to the intensity of the acid hydrolysis. Superficial changes in the granules were observed by SEM. Therefore, modified pinhão starch has ... Mostrar Tudo |
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Palavras-Chave: |
Amido de pinhão modificado; DSC; Modified pinhão starch; RVA; Starch structural evaluation; TG-DTA. |
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Thesaurus NAL: |
Thermal analysis. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02481naa a2200277 a 4500
001 2112143
005 2019-12-10
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1007/s10973-019-08180-1$2DOI
100 1 $aSIQUEIRA, G. L. de A. de
245 $aHydrolysis of the low gelatinization temperature Araucaria angustifolia pine seed starch.$h[electronic resource]
260 $c2019
520 $aStarch is the most abundant carbohydrate found in grains, roots and tubers. Modified starches are employed to overcome most of native starch limitations in industrial applications. Pinhão is the seed of Araucaria angustifolia and starch is approximately 36% of its composition. Acid hydrolysis changes the starch physicochemical properties without impairing the granular structure. The native and hydrochloric acid- modified (0.1 and 0.5 mol L−1) pinhão starches were investigated using thermal (TG-DTA and DSC), rheological (RVA), structural (XRD and SEM) and statistical analysis (ANOVA and Tukey). The aim of this study was to evaluate the effects of acid modification of pinhão starches in aqueous solutions. The starches were chosen because of their low gelatinization temperature (below 60 °C). TG-DTA results in air atmosphere showed that treated samples presented higher thermal stability. The same analysis using nitrogen atmosphere showed similarities between the samples. DSC results indicate that highest acid concentrations promoted crystallinity reduction and losses in the internal structure of the granule. The genetic sources demonstrated different behaviors. The viscosity parameters decreased with the intensity of acid treatment. The XRD identified the type C pattern for the starches and the relative crystallinity increased according to the intensity of the acid hydrolysis. Superficial changes in the granules were observed by SEM. Therefore, modified pinhão starch has potential use for industrial applications. Further studies are necessary to extend these applications.
650 $aThermal analysis
653 $aAmido de pinhão modificado
653 $aDSC
653 $aModified pinhão starch
653 $aRVA
653 $aStarch structural evaluation
653 $aTG-DTA
700 1 $aSILVEIRA, A. C. da
700 1 $aLAZZAROTTO, S. R. da S.
700 1 $aGODOY, R. C. B. de
700 1 $aSCHNITZLER, E.
700 1 $aLAZZAROTTO, M.
773 $tJournal of Thermal Analysis and Calorimetry$gv. 138, n. 2, p. 1269-1278, Oct. 2019.
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