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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
16/07/2020 |
Data da última atualização: |
16/07/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
DUARTE, D. S.; NAASCIMENTO, J. A. de A.; BRITTO, D. de. |
Afiliação: |
Dirliane Santos Duarte, UNIVASF; José Augusto de Almeida Nascimento, UFPE; DOUGLAS DE BRITTO, CPATSA. |
Título: |
Scale-up in the synthesis of nanoparticles for encapsulation of agroindustrial active principles. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Ciência e Agrotecnologia, v. 43, e023819, 2019. |
ISSN: |
1981-1829 |
DOI: |
http://dx.doi.org/10.1590/1413-7054201943023819 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Agroindustria; Encapsulamento; Nanopartículas; Polifenóis; Quitosana. |
Thesagro: |
Subproduto; Vitamina C. |
Thesaurus Nal: |
Byproducts; Polyphenols; Vitamin content. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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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Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
18/12/2023 |
Data da última atualização: |
18/12/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
AUN, N. J.; ASSIS, R. L. de; RDRIGUES, O. |
Afiliação: |
NÁDIA JAROUCHE AUN, UFRRJ; RENATO LINHARES DE ASSIS, CNPAB; ORLANDO RODRIGUES, Instituto Politécnico de Bragança. |
Título: |
Agricultura biológica como motor de reconstrução rural: Um estudo de caso na região de Trás-os-Montes . |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Revista de Geografia e Ordenamento do Território, n. 25, p. 1-18. 2023 |
ISSN: |
2182-1267 |
Idioma: |
Português |
Conteúdo: |
Procurou-se analisar como a agricultura biológica pode ser um instrumento dentro do processo de reocupação dos espaços. Essa investigação trata de enfatizar pequenas transformações percebidas em ambientes ‘considerados’ vazios, mas que continuam a oferecer oportunidades para o envolvimento e a criação de novas formas de capital social. |
Palavras-Chave: |
Novo rural; Rede rural. |
Thesagro: |
Desenvolvimento Rural. |
Categoria do assunto: |
B Sociologia Rural |
Marc: |
LEADER 00953naa a2200193 a 4500 001 2159937 005 2023-12-18 008 2023 bl uuuu u00u1 u #d 022 $a2182-1267 100 1 $aAUN, N. J. 245 $aAgricultura biológica como motor de reconstrução rural$bUm estudo de caso na região de Trás-os-Montes .$h[electronic resource] 260 $c2023 520 $aProcurou-se analisar como a agricultura biológica pode ser um instrumento dentro do processo de reocupação dos espaços. Essa investigação trata de enfatizar pequenas transformações percebidas em ambientes ‘considerados’ vazios, mas que continuam a oferecer oportunidades para o envolvimento e a criação de novas formas de capital social. 650 $aDesenvolvimento Rural 653 $aNovo rural 653 $aRede rural 700 1 $aASSIS, R. L. de 700 1 $aRDRIGUES, O. 773 $tRevista de Geografia e Ordenamento do Território$gn. 25, p. 1-18. 2023
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