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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação; Embrapa Semiárido. |
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Data corrente: |
26/01/2017 |
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Data da última atualização: |
07/02/2018 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
BRITTO, D. de; PINOLA, F. G.; MATTOSO, L. H. C.; ASSIS, O. B. G. de. |
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Afiliação: |
DOUGLAS DE BRITTO, CPATSA; FLÁVIA G. PINOLA; LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA; ODILIO BENEDITO GARRIDO DE ASSIS, CNPDIA. |
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Título: |
Analysis of thermal and aqueous suspension stabilities of chitosan based nanoencapsulated vitamins. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Química Nova, v. 39, n. 9, p. 1126-1130, 2016. |
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DOI: |
10.21577/0100-4042.20160127 |
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Idioma: |
Inglês |
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Conteúdo: |
The food nutritional content is reduced as result of vitamins degradation. In order to minimize such losses, the encapsulation technique into polymeric nanoparticles (NPs) could offer an additional protection, extending the stability. The crosslinking formed by the ionic gelation process of chitosan and tripolyphosphate (Chi-TPP) has been widely used as an encapsulating matrix for several chemical compounds. In this way, Chi-TPP was used for encapsulation of C, B9 and B12 vitamins. The stability of the vitamins in NPs was evaluated in aqueous suspension by UV-Visible spectroscopy under different conditions: stored in dark, light exposure and effect of oxygen bubbling. The results indicated that encapsulation had a positive effect in preserving the vitamins, mainly vitamin C. The encapsulation preserved 47% of the initial concentration of vitamin C by the tenth day and around 28% after 17 days. Conversely, in non-encapsulated controls (neutral and acidic medium) the losses were higher, reaching 13% by the tenth day and almost 3% after 17 days of storage in both medium. When exposed to light and O2 the protection provided by the encapsulation was even greater. By thermogravimetric analysis, the pure and the encapsulated vitamins showed distinct thermal behavior confirming Chi-TPP as a potential encapsulation material. |
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Palavras-Chave: |
Active food; Alimentos ativos; Controlled release; Degradação de vitaminas; Encapsulação; Libertação controlada; Termogravimétrico; Tthermogravimetric; Vitamin degradation. |
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Thesagro: |
Nutrição; Vitamina. |
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Thesaurus Nal: |
Nutrition. |
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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/154024/1/Douglas-1.pdf
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Marc: |
LEADER 02271naa a2200313 a 4500
001 2061859
005 2018-02-07
008 2016 bl uuuu u00u1 u #d
024 7 $a10.21577/0100-4042.20160127$2DOI
100 1 $aBRITTO, D. de
245 $aAnalysis of thermal and aqueous suspension stabilities of chitosan based nanoencapsulated vitamins.$h[electronic resource]
260 $c2016
520 $aThe food nutritional content is reduced as result of vitamins degradation. In order to minimize such losses, the encapsulation technique into polymeric nanoparticles (NPs) could offer an additional protection, extending the stability. The crosslinking formed by the ionic gelation process of chitosan and tripolyphosphate (Chi-TPP) has been widely used as an encapsulating matrix for several chemical compounds. In this way, Chi-TPP was used for encapsulation of C, B9 and B12 vitamins. The stability of the vitamins in NPs was evaluated in aqueous suspension by UV-Visible spectroscopy under different conditions: stored in dark, light exposure and effect of oxygen bubbling. The results indicated that encapsulation had a positive effect in preserving the vitamins, mainly vitamin C. The encapsulation preserved 47% of the initial concentration of vitamin C by the tenth day and around 28% after 17 days. Conversely, in non-encapsulated controls (neutral and acidic medium) the losses were higher, reaching 13% by the tenth day and almost 3% after 17 days of storage in both medium. When exposed to light and O2 the protection provided by the encapsulation was even greater. By thermogravimetric analysis, the pure and the encapsulated vitamins showed distinct thermal behavior confirming Chi-TPP as a potential encapsulation material.
650 $aNutrition
650 $aNutrição
650 $aVitamina
653 $aActive food
653 $aAlimentos ativos
653 $aControlled release
653 $aDegradação de vitaminas
653 $aEncapsulação
653 $aLibertação controlada
653 $aTermogravimétrico
653 $aTthermogravimetric
653 $aVitamin degradation
700 1 $aPINOLA, F. G.
700 1 $aMATTOSO, L. H. C.
700 1 $aASSIS, O. B. G. de
773 $tQuímica Nova$gv. 39, n. 9, p. 1126-1130, 2016.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Origem |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Clima Temperado; Embrapa Meio-Norte; Embrapa Rondônia; Embrapa Roraima. |
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Data corrente: |
28/06/2021 |
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Data da última atualização: |
29/11/2021 |
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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: |
BRESEGHELLO, F.; MELLO, R. N. de; PINHEIRO, P. V.; SOARES, D. M.; LOPES JUNIOR, S.; RANGEL, P. H. N.; GUIMARÃES, E. P.; CASTRO, A. P. de; COLOMBARI FILHO, J. M.; MAGALHÃES JUNIOR, A. M. de; FAGUNDES, P. R. R.; NEVES, P. de C. F.; FURTINI, I. V.; UTUMI, M. M.; PEREIRA, J. A.; CORDEIRO, A. C. C.; SILVEIRA FILHO, A.; ABREU, G. B.; MOURA NETO, F. P.; PIETRAGALLA, J.; VARGAS HERNÁNDEZ, M.; CROSSA, J. |
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Afiliação: |
FLAVIO BRESEGHELLO, CNPAF; RAQUEL NEVES DE MELLO, CNPAF; PATRICIA VALLE PINHEIRO, CNPAF; DINO MAGALHAES SOARES, CNPAF; SERGIO LOPES JUNIOR, CNPAF; PAULO HIDEO NAKANO RANGEL, CNPAF; ELCIO PERPETUO GUIMARAES, CNPAF; ADRIANO PEREIRA DE CASTRO, CNPAF; JOSE MANOEL COLOMBARI FILHO, CNPAF; ARIANO MARTINS DE MAGALHAES JUNIOR, CPACT; PAULO RICARDO REIS FAGUNDES, CPACT; PERICLES DE CARVALHO FERREIRA NEVES, CNPAF; ISABELA VOLPI FURTINI, CNPAF; MARLEY MARICO UTUMI, CPAF-RO; JOSE ALMEIDA PEREIRA, CPAMN; ANTONIO CARLOS CENTENO CORDEIRO, CPAF-RR; AUSTRELINO SILVEIRA FILHO, CPATU; GUILHERME BARBOSA ABREU, CPACP; FRANCISCO PEREIRA MOURA NETO, CNPAF; JULIAN PIETRAGALLA, INTEGRATED BREEDING PLATFORM, Texcoco, Mexico; MATEO VARGAS HERNÁNDEZ, CIMMYT, Texcoco-Mexico; JOSE CROSSA, CIMMYT, Texcoco-Mexico. |
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Título: |
Building the Embrapa rice breeding dataset for efficient data reuse. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Crop Science, v. 61, n. 5, p. 3445-3457, Sept./Oct. 2021. |
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ISSN: |
0011-183X |
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DOI: |
https://doi.org/10.1002/csc2.20550 |
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Idioma: |
Inglês |
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Conteúdo: |
Embrapa has led breeding programs for irrigated and upland rice (Oryza sativa L.) since 1977, generating a large amount of pedigree and phenotypic data. However, there were no systematic standards for data recording nor long-term data preservation and reuse strategies. With the new aim of making data reuse practical, we recovered all data available and structured it into the Embrapa Rice Breeding Dataset (ERBD). In its current version, the ERBD includes 20,504 crosses involving 9,974 parents, the pedigrees of most of the 4,532 inbred lines that took part in advanced field trials, and phenotypic data from 2,711 field trials (1,118 irrigated, 1,593 upland trials), representing 226,458 field plots. Those trials were conducted over 38 years (1982-2019), in 247 locations, in latitudes ranging from 3°N to 33°S. Phenotypic traits included grain yield, days to flowering, plant height, canopy lodging, and five important fungal diseases: leaf blast, panicle blast, brown spot, leaf scald, and grain discoloration. The total number of data points surpasses 1.27 million. Descriptive statistics were computed over the dataset, split by cropping systems (irrigated or upland). The mean heritability of grain yield was high for both systems, at around .7, whereas the mean coefficient of variation was 13.9% for irrigated trials and 18.7% for upland trials. The ERBD offers the possibility of conducting studies on different aspects of rice breeding and genetics, including genetic gain, G×E analysis, genome-wide association studies and genomic prediction. MenosEmbrapa has led breeding programs for irrigated and upland rice (Oryza sativa L.) since 1977, generating a large amount of pedigree and phenotypic data. However, there were no systematic standards for data recording nor long-term data preservation and reuse strategies. With the new aim of making data reuse practical, we recovered all data available and structured it into the Embrapa Rice Breeding Dataset (ERBD). In its current version, the ERBD includes 20,504 crosses involving 9,974 parents, the pedigrees of most of the 4,532 inbred lines that took part in advanced field trials, and phenotypic data from 2,711 field trials (1,118 irrigated, 1,593 upland trials), representing 226,458 field plots. Those trials were conducted over 38 years (1982-2019), in 247 locations, in latitudes ranging from 3°N to 33°S. Phenotypic traits included grain yield, days to flowering, plant height, canopy lodging, and five important fungal diseases: leaf blast, panicle blast, brown spot, leaf scald, and grain discoloration. The total number of data points surpasses 1.27 million. Descriptive statistics were computed over the dataset, split by cropping systems (irrigated or upland). The mean heritability of grain yield was high for both systems, at around .7, whereas the mean coefficient of variation was 13.9% for irrigated trials and 18.7% for upland trials. The ERBD offers the possibility of conducting studies on different aspects of rice breeding and genetics, including genetic gain, G×E analysi... Mostrar Tudo |
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Palavras-Chave: |
Banco de dados. |
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Thesagro: |
Arroz; Fenótipo; Melhoramento Genético Vegetal; Oryza Sativa. |
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Thesaurus NAL: |
Databases; Genetics; Plant breeding; Rice. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224093/1/cropscience-2021.pdf
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Marc: |
LEADER 02975naa a2200505 a 4500
001 2132588
005 2021-11-29
008 2021 bl uuuu u00u1 u #d
022 $a0011-183X
024 7 $ahttps://doi.org/10.1002/csc2.20550$2DOI
100 1 $aBRESEGHELLO, F.
245 $aBuilding the Embrapa rice breeding dataset for efficient data reuse.$h[electronic resource]
260 $c2021
520 $aEmbrapa has led breeding programs for irrigated and upland rice (Oryza sativa L.) since 1977, generating a large amount of pedigree and phenotypic data. However, there were no systematic standards for data recording nor long-term data preservation and reuse strategies. With the new aim of making data reuse practical, we recovered all data available and structured it into the Embrapa Rice Breeding Dataset (ERBD). In its current version, the ERBD includes 20,504 crosses involving 9,974 parents, the pedigrees of most of the 4,532 inbred lines that took part in advanced field trials, and phenotypic data from 2,711 field trials (1,118 irrigated, 1,593 upland trials), representing 226,458 field plots. Those trials were conducted over 38 years (1982-2019), in 247 locations, in latitudes ranging from 3°N to 33°S. Phenotypic traits included grain yield, days to flowering, plant height, canopy lodging, and five important fungal diseases: leaf blast, panicle blast, brown spot, leaf scald, and grain discoloration. The total number of data points surpasses 1.27 million. Descriptive statistics were computed over the dataset, split by cropping systems (irrigated or upland). The mean heritability of grain yield was high for both systems, at around .7, whereas the mean coefficient of variation was 13.9% for irrigated trials and 18.7% for upland trials. The ERBD offers the possibility of conducting studies on different aspects of rice breeding and genetics, including genetic gain, G×E analysis, genome-wide association studies and genomic prediction.
650 $aDatabases
650 $aGenetics
650 $aPlant breeding
650 $aRice
650 $aArroz
650 $aFenótipo
650 $aMelhoramento Genético Vegetal
650 $aOryza Sativa
653 $aBanco de dados
700 1 $aMELLO, R. N. de
700 1 $aPINHEIRO, P. V.
700 1 $aSOARES, D. M.
700 1 $aLOPES JUNIOR, S.
700 1 $aRANGEL, P. H. N.
700 1 $aGUIMARÃES, E. P.
700 1 $aCASTRO, A. P. de
700 1 $aCOLOMBARI FILHO, J. M.
700 1 $aMAGALHÃES JUNIOR, A. M. de
700 1 $aFAGUNDES, P. R. R.
700 1 $aNEVES, P. de C. F.
700 1 $aFURTINI, I. V.
700 1 $aUTUMI, M. M.
700 1 $aPEREIRA, J. A.
700 1 $aCORDEIRO, A. C. C.
700 1 $aSILVEIRA FILHO, A.
700 1 $aABREU, G. B.
700 1 $aMOURA NETO, F. P.
700 1 $aPIETRAGALLA, J.
700 1 $aVARGAS HERNÁNDEZ, M.
700 1 $aCROSSA, J.
773 $tCrop Science$gv. 61, n. 5, p. 3445-3457, Sept./Oct. 2021.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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