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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
11/01/2024 |
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Data da última atualização: |
11/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, D. M. dos; MIGLIORINI, F. L.; COATRINI-SOARES, A.; SOARES, J.; MATTOSO, L. H. C.; OLIVEIRA, O. N.; CORREA, D. S. |
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Afiliação: |
Nanotechnology National Laboratory for Agriculture (LNNA); Nanotechnology National Laboratory for Agriculture (LNNA); Nanotechnology National Laboratory for Agriculture (LNNA); University of São Paulo; LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA; University of Sao Paulo; DANIEL SOUZA CORREA, CNPDIA. |
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Título: |
Low-cost paper-based sensors modified with curcumin for the detection of ochratoxin a in beverages. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Sensors and Actuators Reports, v. 7, 100184, 2024. |
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Páginas: |
11 p. |
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ISSN: |
2666-0539 |
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DOI: |
https://doi.org/10.1016/j.snr.2023.100184 |
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Idioma: |
Inglês |
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Conteúdo: |
Ochratoxin A (OTA) is a mycotoxin that can contaminate food and is produced by fungal species such as Aspergillus carbonarius, Penicillium verrucosum, Aspergillus ochraceus, and Aspergillus niger [1]. OTA poses significant risks to both humans and animals, as it can cause mutagenic, carcinogenic, teratogenic, hemorrhagic, hepatotoxic, estrogenic, immunotoxic, dermatoxic, nephrotoxic, and neurotoxic effects [2–5]. Contamination with OTA can occur at various stages, including during cultivation, post-harvest, and transportation or storage of food produce. Commonly affected food items include dried fruits, cereals, nuts, corn, oats, coffee, grape juice, wine, wheat, and beer [6–9]. OTA is stable in most food-processing conditions, making it a persistent concern in the realm of food safety [4]. Consumption of OTA-contaminated food has emerged as a substantial public health issue that requires immediate attention. Currently, analytical methods such as enzyme-linked immunosorbent assay (ELISA) [10] and chromatographic assays [11] are employed to detect OTA and monitor food quality. However, these approaches are time-consuming and expensive and require sample preparation and trained personnel to operate the instruments. To address these limitations, alternative systems have been proposed, including electrochemical and optical sensors, which offer simpler procedures for detecting OTA traces [4]. Surface functionalization [5,12,13] can further enhance the performance of these sensors. Notably, paper-based sensors show great promise as they fulfill the requirements for point-of-attention food monitoring, are low-cost, portable, and versatile [14,15]. Additionally, functionalization can be accomplished using a wide range of raw, biodegradable materials [16–18]. In this study, we present an innovative paper-based sensor functionalized with curcumin for the optical and electrochemical detection of ochratoxin A (OTA), as illustrated in Scheme 1. Curcumin is a highly promising sensing element due to its affordability, widespread availability, non-toxicity, and pronounced fluorescence that is quenched in the presence of OTA [19–25]. Notably, curcumin also possesses redox-active properties, with two distinct redox centers: a β-diketone. MenosOchratoxin A (OTA) is a mycotoxin that can contaminate food and is produced by fungal species such as Aspergillus carbonarius, Penicillium verrucosum, Aspergillus ochraceus, and Aspergillus niger [1]. OTA poses significant risks to both humans and animals, as it can cause mutagenic, carcinogenic, teratogenic, hemorrhagic, hepatotoxic, estrogenic, immunotoxic, dermatoxic, nephrotoxic, and neurotoxic effects [2–5]. Contamination with OTA can occur at various stages, including during cultivation, post-harvest, and transportation or storage of food produce. Commonly affected food items include dried fruits, cereals, nuts, corn, oats, coffee, grape juice, wine, wheat, and beer [6–9]. OTA is stable in most food-processing conditions, making it a persistent concern in the realm of food safety [4]. Consumption of OTA-contaminated food has emerged as a substantial public health issue that requires immediate attention. Currently, analytical methods such as enzyme-linked immunosorbent assay (ELISA) [10] and chromatographic assays [11] are employed to detect OTA and monitor food quality. However, these approaches are time-consuming and expensive and require sample preparation and trained personnel to operate the instruments. To address these limitations, alternative systems have been proposed, including electrochemical and optical sensors, which offer simpler procedures for detecting OTA traces [4]. Surface functionalization [5,12,13] can further enhance the performance of these sensors... Mostrar Tudo |
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Palavras-Chave: |
Electrochemical detection; Optical detection; Paper-based sensor. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160713/1/P-Low-cost-paper-based-sensors-modified-with-curcumin-for-the-detection-of.pdf
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Marc: |
LEADER 03083naa a2200265 a 4500
001 2160713
005 2024-01-11
008 2024 bl uuuu u00u1 u #d
022 $a2666-0539
024 7 $ahttps://doi.org/10.1016/j.snr.2023.100184$2DOI
100 1 $aSANTOS, D. M. dos
245 $aLow-cost paper-based sensors modified with curcumin for the detection of ochratoxin a in beverages.$h[electronic resource]
260 $c2024
300 $a11 p.
520 $aOchratoxin A (OTA) is a mycotoxin that can contaminate food and is produced by fungal species such as Aspergillus carbonarius, Penicillium verrucosum, Aspergillus ochraceus, and Aspergillus niger [1]. OTA poses significant risks to both humans and animals, as it can cause mutagenic, carcinogenic, teratogenic, hemorrhagic, hepatotoxic, estrogenic, immunotoxic, dermatoxic, nephrotoxic, and neurotoxic effects [2–5]. Contamination with OTA can occur at various stages, including during cultivation, post-harvest, and transportation or storage of food produce. Commonly affected food items include dried fruits, cereals, nuts, corn, oats, coffee, grape juice, wine, wheat, and beer [6–9]. OTA is stable in most food-processing conditions, making it a persistent concern in the realm of food safety [4]. Consumption of OTA-contaminated food has emerged as a substantial public health issue that requires immediate attention. Currently, analytical methods such as enzyme-linked immunosorbent assay (ELISA) [10] and chromatographic assays [11] are employed to detect OTA and monitor food quality. However, these approaches are time-consuming and expensive and require sample preparation and trained personnel to operate the instruments. To address these limitations, alternative systems have been proposed, including electrochemical and optical sensors, which offer simpler procedures for detecting OTA traces [4]. Surface functionalization [5,12,13] can further enhance the performance of these sensors. Notably, paper-based sensors show great promise as they fulfill the requirements for point-of-attention food monitoring, are low-cost, portable, and versatile [14,15]. Additionally, functionalization can be accomplished using a wide range of raw, biodegradable materials [16–18]. In this study, we present an innovative paper-based sensor functionalized with curcumin for the optical and electrochemical detection of ochratoxin A (OTA), as illustrated in Scheme 1. Curcumin is a highly promising sensing element due to its affordability, widespread availability, non-toxicity, and pronounced fluorescence that is quenched in the presence of OTA [19–25]. Notably, curcumin also possesses redox-active properties, with two distinct redox centers: a β-diketone.
653 $aElectrochemical detection
653 $aOptical detection
653 $aPaper-based sensor
700 1 $aMIGLIORINI, F. L.
700 1 $aCOATRINI-SOARES, A.
700 1 $aSOARES, J.
700 1 $aMATTOSO, L. H. C.
700 1 $aOLIVEIRA, O. N.
700 1 $aCORREA, D. S.
773 $tSensors and Actuators Reports$gv. 7, 100184, 2024.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Biblioteca |
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Origem |
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Classificação |
Cutter |
Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
25/05/2020 |
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Data da última atualização: |
25/05/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SANTOS, J. S. dos; DIAS, R. de C. S.; ALMEIDA, K. B. de; RIBEIRO JUNIOR, P. M.; NASCIMENTO, T. L. do. |
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Afiliação: |
JOICE SIMONE DOS SANTOS; RITA DE CASSIA SOUZA DIAS, CPATSA; KARINA BRANCO DE ALMEIDA; PEDRO MARTINS RIBEIRO JUNIOR, CPATSA; TIAGO LIMA DO NASCIMENTO. |
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Título: |
Resistance of Cucurbita spp to Fusarium soloni for use as rootstock. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Revista Caatinga, v. 33, n. 2, p. 384-394, 2020. |
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DOI: |
http://dx.doi.org/10.1590/1983-21252020v33n211rc |
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Idioma: |
Inglês |
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Conteúdo: |
Fusarium solani f. sp. cucurbitae (Fsc) is a soil pathogen and the adoption of resistant rootstocks is an effective method of control. Hybrids of Cucurbita spp. are the main rootstock used for watermelon. This study aimed to evaluate the virulence of Fsc race 1 (Fsc1) in three cucurbits and check the reaction of Cucurbita spp. genotypes to the fungus for its use as rootstock. Four experiments were performed. The virulence of Fsc1 in melon, watermelon and Cucurbita spp. was evaluated in experiment I. In experiment two and three the severity of the pathogen in 19 cucurbits was analyzed. And experiment four evaluated the compatibility of these genotypes as a rootstock for watermelon. Cucurbita spp. proved to be more resistant to Fusarium solani f. sp. cucurbitae race 1 than the melon. The high frequency of plants resistant to Fsc1 was found in the genotypes BGC622, BGC620, BGC567, BGC530, BGC186, BGC381, BGC692, BGC082, ES0061 and ES0062. In addition, the evaluated genotypes may be used as watermelon rootstocks, except for the ES530 strain, which was incompatible with the cultivar BRS Opara, but could be used in pumpkin breeding programs, as well as other resistant genotypes. |
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Palavras-Chave: |
Patógeno do solo. |
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Thesagro: |
Banco de Germoplasma; Cucurbitaceae; Doença; Fruta Cucurbitácea; Fungo; Germoplasma; Melancia; Melão; Porta Enxerto. |
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Thesaurus NAL: |
Cucurbita; Fusarium solani f. sp. cucurbitae. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/213234/1/RESISTANCE-OF-CUCURBITA-2020.pdf
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Marc: |
LEADER 02136naa a2200325 a 4500
001 2122553
005 2020-05-25
008 2020 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/1983-21252020v33n211rc$2DOI
100 1 $aSANTOS, J. S. dos
245 $aResistance of Cucurbita spp to Fusarium soloni for use as rootstock.$h[electronic resource]
260 $c2020
520 $aFusarium solani f. sp. cucurbitae (Fsc) is a soil pathogen and the adoption of resistant rootstocks is an effective method of control. Hybrids of Cucurbita spp. are the main rootstock used for watermelon. This study aimed to evaluate the virulence of Fsc race 1 (Fsc1) in three cucurbits and check the reaction of Cucurbita spp. genotypes to the fungus for its use as rootstock. Four experiments were performed. The virulence of Fsc1 in melon, watermelon and Cucurbita spp. was evaluated in experiment I. In experiment two and three the severity of the pathogen in 19 cucurbits was analyzed. And experiment four evaluated the compatibility of these genotypes as a rootstock for watermelon. Cucurbita spp. proved to be more resistant to Fusarium solani f. sp. cucurbitae race 1 than the melon. The high frequency of plants resistant to Fsc1 was found in the genotypes BGC622, BGC620, BGC567, BGC530, BGC186, BGC381, BGC692, BGC082, ES0061 and ES0062. In addition, the evaluated genotypes may be used as watermelon rootstocks, except for the ES530 strain, which was incompatible with the cultivar BRS Opara, but could be used in pumpkin breeding programs, as well as other resistant genotypes.
650 $aCucurbita
650 $aFusarium solani f. sp. cucurbitae
650 $aBanco de Germoplasma
650 $aCucurbitaceae
650 $aDoença
650 $aFruta Cucurbitácea
650 $aFungo
650 $aGermoplasma
650 $aMelancia
650 $aMelão
650 $aPorta Enxerto
653 $aPatógeno do solo
700 1 $aDIAS, R. de C. S.
700 1 $aALMEIDA, K. B. de
700 1 $aRIBEIRO JUNIOR, P. M.
700 1 $aNASCIMENTO, T. L. do
773 $tRevista Caatinga$gv. 33, n. 2, p. 384-394, 2020.
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