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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
16/07/2020 |
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Data da última atualização: |
16/07/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DUARTE, D. S.; NAASCIMENTO, J. A. de A.; BRITTO, D. de. |
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Afiliação: |
Dirliane Santos Duarte, UNIVASF; José Augusto de Almeida Nascimento, UFPE; DOUGLAS DE BRITTO, CPATSA. |
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Título: |
Scale-up in the synthesis of nanoparticles for encapsulation of agroindustrial active principles. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Ciência e Agrotecnologia, v. 43, e023819, 2019. |
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ISSN: |
1981-1829 |
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DOI: |
http://dx.doi.org/10.1590/1413-7054201943023819 |
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Idioma: |
Inglês |
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Conteúdo: |
Given the potentiality of nanoparticles (NP) to load substances as active principle of drugs, cosmetics and food, there is interest in increasing its production. Particularly in the agroindustrial area, the byproducts are source of functional compounds that must be stabilized by encapsulation, for example, to allow its application. Considering the amount of generated byproducts, it is necessary to understand the encapsulation synthesis in a high scale dimension. In this way, the active compounds vitamin C (from the byproduct of the acerola processing) and polyphenols (from the byproduct of grape processing) were nanoencapsulated into chitosan NP at three reactional volumes: 0.1; 1.0 and 10.0 dm3 . The NP were characterized for yield, particle size, morphology, encapsulation efficiency and release profile. In general, the increase in scale did not influence these parameters. It is found a close similarity for NP size value between the 0.1 and 10.0 dm3 reactional volumes. For example, for the blank control, the size was 155±6 and 227±118 nm respectively for 0.1 and 10.0 dm3 reactional volumes. Similarly for the encapsulated acerola byproduct extract (373±44 and 400±83 nm) and ascorbic acid (279±29 and 217±29 nm). For the encapsulated skin grape extract, the size decreased sharply from 1040 to 308 nm. The yield per volume ratio was about 1.3 mg cm-3. Additional analysis for NP with encapsulated skin grape extract, by Scanning Electronic Microscopy, showed uniformly distributed spherical structures and the release profile was similar for all reactional volumes. Thus, the system is suitable for scale-up for NP production. MenosGiven the potentiality of nanoparticles (NP) to load substances as active principle of drugs, cosmetics and food, there is interest in increasing its production. Particularly in the agroindustrial area, the byproducts are source of functional compounds that must be stabilized by encapsulation, for example, to allow its application. Considering the amount of generated byproducts, it is necessary to understand the encapsulation synthesis in a high scale dimension. In this way, the active compounds vitamin C (from the byproduct of the acerola processing) and polyphenols (from the byproduct of grape processing) were nanoencapsulated into chitosan NP at three reactional volumes: 0.1; 1.0 and 10.0 dm3 . The NP were characterized for yield, particle size, morphology, encapsulation efficiency and release profile. In general, the increase in scale did not influence these parameters. It is found a close similarity for NP size value between the 0.1 and 10.0 dm3 reactional volumes. For example, for the blank control, the size was 155±6 and 227±118 nm respectively for 0.1 and 10.0 dm3 reactional volumes. Similarly for the encapsulated acerola byproduct extract (373±44 and 400±83 nm) and ascorbic acid (279±29 and 217±29 nm). For the encapsulated skin grape extract, the size decreased sharply from 1040 to 308 nm. The yield per volume ratio was about 1.3 mg cm-3. Additional analysis for NP with encapsulated skin grape extract, by Scanning Electronic Microscopy, showed uniformly distributed ... Mostrar Tudo |
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Palavras-Chave: |
Agroindustria; Encapsulamento; Nanopartículas; Polifenóis; Quitosana. |
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Thesagro: |
Subproduto; Vitamina C. |
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Thesaurus Nal: |
Byproducts; Polyphenols; Vitamin content. |
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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/214651/1/Scale-up-in-the-synthesis-of-nanoparticles-2019.pdf
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Marc: |
LEADER 02496naa a2200289 a 4500
001 2123889
005 2020-07-16
008 2019 bl uuuu u00u1 u #d
022 $a1981-1829
024 7 $ahttp://dx.doi.org/10.1590/1413-7054201943023819$2DOI
100 1 $aDUARTE, D. S.
245 $aScale-up in the synthesis of nanoparticles for encapsulation of agroindustrial active principles.$h[electronic resource]
260 $c2019
520 $aGiven the potentiality of nanoparticles (NP) to load substances as active principle of drugs, cosmetics and food, there is interest in increasing its production. Particularly in the agroindustrial area, the byproducts are source of functional compounds that must be stabilized by encapsulation, for example, to allow its application. Considering the amount of generated byproducts, it is necessary to understand the encapsulation synthesis in a high scale dimension. In this way, the active compounds vitamin C (from the byproduct of the acerola processing) and polyphenols (from the byproduct of grape processing) were nanoencapsulated into chitosan NP at three reactional volumes: 0.1; 1.0 and 10.0 dm3 . The NP were characterized for yield, particle size, morphology, encapsulation efficiency and release profile. In general, the increase in scale did not influence these parameters. It is found a close similarity for NP size value between the 0.1 and 10.0 dm3 reactional volumes. For example, for the blank control, the size was 155±6 and 227±118 nm respectively for 0.1 and 10.0 dm3 reactional volumes. Similarly for the encapsulated acerola byproduct extract (373±44 and 400±83 nm) and ascorbic acid (279±29 and 217±29 nm). For the encapsulated skin grape extract, the size decreased sharply from 1040 to 308 nm. The yield per volume ratio was about 1.3 mg cm-3. Additional analysis for NP with encapsulated skin grape extract, by Scanning Electronic Microscopy, showed uniformly distributed spherical structures and the release profile was similar for all reactional volumes. Thus, the system is suitable for scale-up for NP production.
650 $aByproducts
650 $aPolyphenols
650 $aVitamin content
650 $aSubproduto
650 $aVitamina C
653 $aAgroindustria
653 $aEncapsulamento
653 $aNanopartículas
653 $aPolifenóis
653 $aQuitosana
700 1 $aNAASCIMENTO, J. A. de A.
700 1 $aBRITTO, D. de
773 $tCiência e Agrotecnologia$gv. 43, e023819, 2019.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca |
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Origem |
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Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Unidades Centrais. |
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Data corrente: |
27/03/2009 |
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Data da última atualização: |
27/03/2009 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
FARIAS NETO, A. L. de; SCHMIDT, M.; HARTMAN, G. L.; LI, S.; DIERS, B. W. |
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Afiliação: |
Austeclínio Lopes de Farias Neto, CPAC; Michael Schmidt, Southern Illinois University; Glen Lee Hartman, University of Illinois; Shuxian Li; Brian Willians Diers, University of Illinois. |
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Título: |
Inoculation methods under greenhouse conditions for evaluating soybean resistance to sudden death syndrome. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, v. 43, n. 11, p. 1475-1482, nov. 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of this work were to evaluate two greenhouse screening methods for sudden death syndrome (SDS) and to determine which one is best correlated with field resistance of soybean genotypes. The evaluations were done with three sets of genotypes that were classified as partially resistant, intermediate, and susceptible to SDS based on previous field evaluations. These three sets were independently evaluated for greenhouse SDS reactions using cone and tray inoculation methods. Plants were infected using grains of white sorghum [Sorghum bicolor (L.) Moench] infested with Fusarium solani f. sp. glycines. Foliar symptom severity was rated 21 days after emergence. The cone and field SDS ratings were significantly correlated and ranged from 0.69 for set 1 to 0.51 for set 3. Correlations of SDS ratings of genotypes between field and greenhouse tray ratings were significant for set 1 and not significant for set 2. The cone method showed the highest correlation with field results and is recommended to screen soybean genotypes for SDS resistance. |
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Palavras-Chave: |
cone inoculation method; método de inoculação em bandeja; método de inoculação em cone; SDS; severidade de sintomas; symptom severity; tray inoculation method. |
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Thesagro: |
Fusarium Solani; Glycine Max; Inoculação; Soja. |
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Thesaurus NAL: |
Fusarium virguliforme. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE-2009-09/45609/1/43n11a05.pdf
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Marc: |
LEADER 02014naa a2200313 a 4500
001 1572147
005 2009-03-27
008 2008 bl uuuu u00u1 u #d
100 1 $aFARIAS NETO, A. L. de
245 $aInoculation methods under greenhouse conditions for evaluating soybean resistance to sudden death syndrome.
260 $c2008
520 $aThe objectives of this work were to evaluate two greenhouse screening methods for sudden death syndrome (SDS) and to determine which one is best correlated with field resistance of soybean genotypes. The evaluations were done with three sets of genotypes that were classified as partially resistant, intermediate, and susceptible to SDS based on previous field evaluations. These three sets were independently evaluated for greenhouse SDS reactions using cone and tray inoculation methods. Plants were infected using grains of white sorghum [Sorghum bicolor (L.) Moench] infested with Fusarium solani f. sp. glycines. Foliar symptom severity was rated 21 days after emergence. The cone and field SDS ratings were significantly correlated and ranged from 0.69 for set 1 to 0.51 for set 3. Correlations of SDS ratings of genotypes between field and greenhouse tray ratings were significant for set 1 and not significant for set 2. The cone method showed the highest correlation with field results and is recommended to screen soybean genotypes for SDS resistance.
650 $aFusarium virguliforme
650 $aFusarium Solani
650 $aGlycine Max
650 $aInoculação
650 $aSoja
653 $acone inoculation method
653 $amétodo de inoculação em bandeja
653 $amétodo de inoculação em cone
653 $aSDS
653 $aseveridade de sintomas
653 $asymptom severity
653 $atray inoculation method
700 1 $aSCHMIDT, M.
700 1 $aHARTMAN, G. L.
700 1 $aLI, S.
700 1 $aDIERS, B. W.
773 $tPesquisa Agropecuária Brasileira, Brasília$gv. 43, n. 11, p. 1475-1482, nov. 2008.
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Embrapa Cerrados (CPAC) |
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