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Registro Completo |
Biblioteca(s): |
Embrapa Roraima. |
Data corrente: |
28/01/2022 |
Data da última atualização: |
28/01/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
GRIGIO, M. L.; MOURA, E. A. de; CHAGAS, E. A.; DURIGAN, M. F. B.; CHAGAS, P. C.; CARVALHO, G. F. de; ZANCHETTA, J. J. |
Afiliação: |
EDVAN ALVES CHAGAS, CPAF-RR; MARIA FERNANDA BERLINGIERI DURIGAN, CNPDIA. |
Título: |
Bioactive compounds in and antioxidant activity of camu-camu fruits harvested at different maturation stages during postharvest storage. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Acta Scientiarum Agronomy, v. 43, e50997, 2021. |
Idioma: |
Inglês |
Conteúdo: |
The present study was carried out to evaluate the antioxidant activity of and the content of bioactive compounds in camu-camu fruits harvested at different maturation stages and stored. The fruits were harvested in the municipality of Cantá, Roraima State, Brazil. The experimental design was completely randomized, with three replications, in a factorial arrangement consisting of three different maturation stages (immature, semi-mature and mature) and eight days of storage (3 x 8). The fruits were analysed every day regarding total vitamin C, carotenoids, anthocyanins, flavonoids, total phenolic compounds, and antioxidant activity (FRAP and DPPH). According to the results obtained, the interaction of maturation stages x eight days of storage had a significant effect according to the F test at 5% probability. The highest antioxidant activity (FRAP) was observed in the fruits harvested in the semi-mature stage, providing a longer shelf life. The carotenoid pigment, flavonoid, anthocyanin, and vitamin C contents were higher in the fruits harvested in the mature stage, and this stage was the most suitable for obtaining these functional biocompounds. Additionally, in mature fruits, the highest mean content of total phenolics and antioxidant activity (DPPH) were observed during storage. It was concluded that the mature stage is the most recommended for the extraction of pigments and antioxidant biocompounds from camu-camu fruits. |
Palavras-Chave: |
Biocompounds; Multivariate statistics. |
Thesagro: |
Myrciaria Dubia. |
Thesaurus Nal: |
Anthocyanins; Phenolic compounds. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230696/1/A2-2021-Bioactive-compounds-and-antioxidant-activity-of-camu-camu.pdf
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Marc: |
LEADER 02236naa a2200253 a 4500 001 2139455 005 2022-01-28 008 2021 bl uuuu u00u1 u #d 100 1 $aGRIGIO, M. L. 245 $aBioactive compounds in and antioxidant activity of camu-camu fruits harvested at different maturation stages during postharvest storage.$h[electronic resource] 260 $c2021 520 $aThe present study was carried out to evaluate the antioxidant activity of and the content of bioactive compounds in camu-camu fruits harvested at different maturation stages and stored. The fruits were harvested in the municipality of Cantá, Roraima State, Brazil. The experimental design was completely randomized, with three replications, in a factorial arrangement consisting of three different maturation stages (immature, semi-mature and mature) and eight days of storage (3 x 8). The fruits were analysed every day regarding total vitamin C, carotenoids, anthocyanins, flavonoids, total phenolic compounds, and antioxidant activity (FRAP and DPPH). According to the results obtained, the interaction of maturation stages x eight days of storage had a significant effect according to the F test at 5% probability. The highest antioxidant activity (FRAP) was observed in the fruits harvested in the semi-mature stage, providing a longer shelf life. The carotenoid pigment, flavonoid, anthocyanin, and vitamin C contents were higher in the fruits harvested in the mature stage, and this stage was the most suitable for obtaining these functional biocompounds. Additionally, in mature fruits, the highest mean content of total phenolics and antioxidant activity (DPPH) were observed during storage. It was concluded that the mature stage is the most recommended for the extraction of pigments and antioxidant biocompounds from camu-camu fruits. 650 $aAnthocyanins 650 $aPhenolic compounds 650 $aMyrciaria Dubia 653 $aBiocompounds 653 $aMultivariate statistics 700 1 $aMOURA, E. A. de 700 1 $aCHAGAS, E. A. 700 1 $aDURIGAN, M. F. B. 700 1 $aCHAGAS, P. C. 700 1 $aCARVALHO, G. F. de 700 1 $aZANCHETTA, J. J. 773 $tActa Scientiarum Agronomy$gv. 43, e50997, 2021.
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Embrapa Roraima (CPAF-RR) |
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Registro Completo
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
24/10/1995 |
Data da última atualização: |
06/11/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
WEBER, V. A. M.; WEBER, F. de L.; OLIVEIRA, A. da S.; ASTOLFI, G.; MENEZES, G. V.; PORTO, J. V. de A.; REZENDE, F. P. C.; MORAES, P. H. de; MATSUBARA, E. T.; MATEUS, R. G.; ARAÚJO, T. L. A. C. de; SILVA, L. O. C. da; QUEIROZ, E. Q, A. de; ABREU, U. G. P. de; GOMES, R. da C.; PISTORI, H. |
Afiliação: |
VANESSA APARECIDA MORAES WEBER, Universidade Católica Dom Bosco, UCDB; FABRICIO DE LIMA WEBER, ederal University of Mato Grosso do Sul, UFMS; ADAIR DA SILVA OLIVEIRA, Federal University of Mato Grosso do Sul, UFMS; GILBERTO ASTOLFI, Federal University of Mato Grosso do Sul, UFMS; GEAZY VILHARVA MENEZES, Federal University of Mato Grosso do Sul, UFMS; JOÃO VITOR DE ANDRADE PORTO, Universidade Católica Dom Bosco, UCDB; FÁBIO PRESTES CESAR REZENDE, Universidade Católica Dom Bosco, UCDB; PEDRO HENRIQUE DE MORAES, Federal University of Mato Grosso do Sul, UFMS; EDSON TAKASHI MATSUBARA, Federal University of Mato Grosso do Sul, UFMS; RODRIGO GONÇALVES MATEUS, Universidade Catolica Dom Bosco, UCDB; THIAGO LUÍS ALVES CAMPOS DE ARAÚJO, Federal University of Ceara, UFC; LUIZ OTAVIO CAMPOS DA SILVA, Federal University of Ceara, UFC; EDUARDO QUIRINO ARGUELHO DE QUEIROZ, Universidade Catolica Dom Bosco, UCDB; URBANO GOMES PINTO DE ABREU, CPAP; RODRIGO DA COSTA GOMES, Federal Institute of Education, Science and Technology of Mato Grosso do Sul, IFMS; HEMERSON PISTORI, Universidade Catolica Dom Bosco, UCDB. |
Título: |
Cattle weight estimation using active contour models and regression trees Bagging . |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Computers and Electronics in Agriculture, v.179, 105804, p. 1-12, dec, 2020. |
Idioma: |
Português |
Conteúdo: |
Monitoring the weight of beef cattle is important for productive strategies. The main goal of this work was to automatically extract measurements from 2D images of the dorsal area of Nellore cattle to estimate the weight of these cattle using regression algorithms. For this purpose, Euclidean distances from points generated by the Active Contour Model, together with features obtained from the dorsal Convex Hull, were selected. These were submitted to Bagging, Regression by Discretization and Random Forest algorithms for analysis of the predicted error metrics. The Bagging algorithm showed the best results, with Mean Absolute Error (MAE) of 13.44 kg (2.76), Square Root of the Mean Error (RMSE) of 15.88 kg (2.86), Mean Absolute Percentage Error (MAPE) of 2.27% and correlation coefficient at 0.75. |
Thesagro: |
Gado de Corte; Ganho de Peso; Pecuária. |
Thesaurus NAL: |
Computer vision; Livestock production; Weight control. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 01897naa a2200373 a 4500 001 1786948 005 2020-11-06 008 2020 bl uuuu u00u1 u #d 100 1 $aWEBER, V. A. M. 245 $aCattle weight estimation using active contour models and regression trees Bagging .$h[electronic resource] 260 $c2020 520 $aMonitoring the weight of beef cattle is important for productive strategies. The main goal of this work was to automatically extract measurements from 2D images of the dorsal area of Nellore cattle to estimate the weight of these cattle using regression algorithms. For this purpose, Euclidean distances from points generated by the Active Contour Model, together with features obtained from the dorsal Convex Hull, were selected. These were submitted to Bagging, Regression by Discretization and Random Forest algorithms for analysis of the predicted error metrics. The Bagging algorithm showed the best results, with Mean Absolute Error (MAE) of 13.44 kg (2.76), Square Root of the Mean Error (RMSE) of 15.88 kg (2.86), Mean Absolute Percentage Error (MAPE) of 2.27% and correlation coefficient at 0.75. 650 $aComputer vision 650 $aLivestock production 650 $aWeight control 650 $aGado de Corte 650 $aGanho de Peso 650 $aPecuária 700 1 $aWEBER, F. de L. 700 1 $aOLIVEIRA, A. da S. 700 1 $aASTOLFI, G. 700 1 $aMENEZES, G. V. 700 1 $aPORTO, J. V. de A. 700 1 $aREZENDE, F. P. C. 700 1 $aMORAES, P. H. de 700 1 $aMATSUBARA, E. T. 700 1 $aMATEUS, R. G. 700 1 $aARAÚJO, T. L. A. C. de 700 1 $aSILVA, L. O. C. da 700 1 $aQUEIROZ, E. Q, A. de 700 1 $aABREU, U. G. P. de 700 1 $aGOMES, R. da C. 700 1 $aPISTORI, H. 773 $tComputers and Electronics in Agriculture$gv.179, 105804, p. 1-12, dec, 2020.
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