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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
28/05/2024 |
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Data da última atualização: |
28/05/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARVALHO, A. P. A. de; SILVA, V. D. M.; SOUZA, P. T. F.; GARCIA, C. F.; QUEIROZ, V. A. V.; JUNQUEIRA, R. G.; GARCIA, M. A. V. T. |
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Afiliação: |
ANA PAULA ALVES DE CARVALHO, UNIVERSIDADE FEDERAL DE MINAS GERAIS; VIVIANE DIAS MEDEIROS SILVA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; PRISCILA TALITA FERNANDES SOUZA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; CLEVERSON FERNANDO GARCIA, CENTRO FEDERAL DE EDUCAÇAO TECNOLOGICA; VALERIA APARECIDA VIEIRA QUEIROZ, CNPMS; ROBERTO GONÇALVES JUNQUEIRA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; MARIA APARECIDA VIEIRA TEIXEIRA GARCIA, UNIVERSIDADE FEDERAL DE MINAS GERAIS. |
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Título: |
Sorghum starch: extraction, characterization and film development. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Materials Today Communications, v. 39, 109020, 2024. |
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DOI: |
https://doi.org/10.1016/j.mtcomm.2024.109020 |
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Idioma: |
Inglês |
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Conteúdo: |
Sorghum starch was extracted from sorghum grain (24.27 % average yield) and had a high carbohydrate content (86.66 %), indicating its high purity. This starch was used for the production of films with different concentrations of sorghum starch (2, 3 and 4 %) and glycerol (20, 30 and 40 g/100 g of starch). Most films were homogeneous and practically amorphous; however, the micrographs revealed the presence of some starch granules. These films also had relevant barrier properties to ultraviolet light, with infrared spectrum characteristic of sorghum starch, high lightness (L* = 87.77–90.19) and a tendency of color for the pink, but with low intensity of hue (h◦ = 297.06–315.20; chroma = 7.00–9.47). Thickness varied from 0.048 to 0.081 mm and the water solubility from 27 % to 48 %. Thermogravimetric analysis revealed the existence of three thermal events, correspondents to the elimination of water, decomposition of glycerol and starch, respectively. The glass transition temperature decreased with increasing glycerol content, keeping in range of 9–15◦C. The film with the best mechanical performance was the one composed of 4 % starch and 30 g/100 g glycerol, as it presented a tensile strength of 3.63 MPa and elongation of 44.10 %. Water vapor permeability varied from 5.504 a 14.234 g.mm. m− 2 .dia− 1 .kPa− 1 , due to the increase in the concentrations of starch and glycerol. The characterization directed the usage of such films to pack vegetables and, therefore, proved that the sorghum starch is a promising source for the production of biodegradable films. MenosSorghum starch was extracted from sorghum grain (24.27 % average yield) and had a high carbohydrate content (86.66 %), indicating its high purity. This starch was used for the production of films with different concentrations of sorghum starch (2, 3 and 4 %) and glycerol (20, 30 and 40 g/100 g of starch). Most films were homogeneous and practically amorphous; however, the micrographs revealed the presence of some starch granules. These films also had relevant barrier properties to ultraviolet light, with infrared spectrum characteristic of sorghum starch, high lightness (L* = 87.77–90.19) and a tendency of color for the pink, but with low intensity of hue (h◦ = 297.06–315.20; chroma = 7.00–9.47). Thickness varied from 0.048 to 0.081 mm and the water solubility from 27 % to 48 %. Thermogravimetric analysis revealed the existence of three thermal events, correspondents to the elimination of water, decomposition of glycerol and starch, respectively. The glass transition temperature decreased with increasing glycerol content, keeping in range of 9–15◦C. The film with the best mechanical performance was the one composed of 4 % starch and 30 g/100 g glycerol, as it presented a tensile strength of 3.63 MPa and elongation of 44.10 %. Water vapor permeability varied from 5.504 a 14.234 g.mm. m− 2 .dia− 1 .kPa− 1 , due to the increase in the concentrations of starch and glycerol. The characterization directed the usage of such films to pack vegetables and, therefore, proved that the s... Mostrar Tudo |
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Palavras-Chave: |
Polímero. |
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Thesagro: |
Alimento; Embalagem; Sorghum Bicolor; Sorgo. |
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Thesaurus Nal: |
Food packaging; Polymers. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02418naa a2200289 a 4500
001 2164579
005 2024-05-28
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.mtcomm.2024.109020$2DOI
100 1 $aCARVALHO, A. P. A. de
245 $aSorghum starch$bextraction, characterization and film development.$h[electronic resource]
260 $c2024
520 $aSorghum starch was extracted from sorghum grain (24.27 % average yield) and had a high carbohydrate content (86.66 %), indicating its high purity. This starch was used for the production of films with different concentrations of sorghum starch (2, 3 and 4 %) and glycerol (20, 30 and 40 g/100 g of starch). Most films were homogeneous and practically amorphous; however, the micrographs revealed the presence of some starch granules. These films also had relevant barrier properties to ultraviolet light, with infrared spectrum characteristic of sorghum starch, high lightness (L* = 87.77–90.19) and a tendency of color for the pink, but with low intensity of hue (h◦ = 297.06–315.20; chroma = 7.00–9.47). Thickness varied from 0.048 to 0.081 mm and the water solubility from 27 % to 48 %. Thermogravimetric analysis revealed the existence of three thermal events, correspondents to the elimination of water, decomposition of glycerol and starch, respectively. The glass transition temperature decreased with increasing glycerol content, keeping in range of 9–15◦C. The film with the best mechanical performance was the one composed of 4 % starch and 30 g/100 g glycerol, as it presented a tensile strength of 3.63 MPa and elongation of 44.10 %. Water vapor permeability varied from 5.504 a 14.234 g.mm. m− 2 .dia− 1 .kPa− 1 , due to the increase in the concentrations of starch and glycerol. The characterization directed the usage of such films to pack vegetables and, therefore, proved that the sorghum starch is a promising source for the production of biodegradable films.
650 $aFood packaging
650 $aPolymers
650 $aAlimento
650 $aEmbalagem
650 $aSorghum Bicolor
650 $aSorgo
653 $aPolímero
700 1 $aSILVA, V. D. M.
700 1 $aSOUZA, P. T. F.
700 1 $aGARCIA, C. F.
700 1 $aQUEIROZ, V. A. V.
700 1 $aJUNQUEIRA, R. G.
700 1 $aGARCIA, M. A. V. T.
773 $tMaterials Today Communications$gv. 39, 109020, 2024.
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Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 9 | |
| 5. |  | THEISEN, G.; FIPKE, M. V.; BONOW, J. F. L.; REIS, A.; XAVIER, F. da M.; NEMITZ, C.; SILVA, S. D. dos A. e. Produtividade de cultivares de cana-de-acucar (saccharum officinarum l.) cultivadas em terras baixas nas safras 2010/2011 e 2011/2012. In: SIMPÓSIO ESTADUAL DE AGROENERGIA, 4.; REUNIÃO TÉCNICA DE AGROENERGIA, 4., 2012, AMRIGS: Porto Alegre. Anais... Pelotas: Embrapa Clima Temperado, 2012. Organizado por Sérgio Delmar dos Anjos e Silva Ivan Rodrigues de Almeida.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 6. | | THEISEN, G.; XAVIER, F. da M.; BONOW, J. F. L.; PARFITT, J. M. B.; ANDRES, A.; SILVA, J. J. C. da. Manejo integrado de plantas daninhas em sistema de produção de arroz irrigado por aspersão. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 8., 2013, Santa Maria. Avaliando cenários para a produção sustentável de arroz: anais. Santa Maria: UFSM; Porto Alegre: Sosbai, 2013.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 7. | | MARTINS, A. B. N.; RADKE, A. K.; MONTEIRO, M. A.; DIAS, L. W.; MADRUGA, L. V.; MENEGUELLO, G. E.; XAVIER, F. da M.; BRUNES, A. P.; COSTA, C. J.; MITTELMANN, A. Methods for breaking seed dormancy of ryegrass during storage periods. African Journal of Agricultural Research, 11, n. 45, p. 4567-4570, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 8. | | MARTINS, A. B. N.; COSTA, C. J.; XAVIER, F. da M.; BRUNES, A. P.; DIAS, L. W.; RADKE, A. K.; ELBERHARDT, P. E. da R.; CAVALCANTE, J. A.; VERA, M. J. G.; TUNES, L. V. M. de; MORAES, D. M. de. Accelerated aging test in amaranth (Amaranthus cruentus L.) seeds. Australian Journal of Crop Science, v. 12, n. 3, p. 448-448, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 9. | | MARTINS, A. B. N.; CARVALHO, I. R.; COSTA, C. J.; MARQUES, F. S.; MARQUES, R. L. L.; XAVIER, F. Da M.; CAVALCANTE, J. A.; VERGARA, R. DE O.; TEIXEIRA, S. B.; BOHN, A.; TUNNES, L. V. M. DE; MACEDO, V. K.; REIS, B. B. DOS; SUNNE, A. DOS S.; MORAES, D. M. DE. Storage of Amaranth Seeds: Reflex in Physiologic Potential. Journal of Agricultural Science, v. 11, n. 12, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Clima Temperado; Embrapa Hortaliças. |
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| Registros recuperados : 9 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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