Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storage
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5897/AJAR12.2021 http://hdl.handle.net/11449/137565 |
Resumo: | We evaluated the effect of gamma irradiation doses (0, 125, 250, and 500 Gy) in control of psychrotrophic bacteria in different strains of Agaricus bisporus (ABI-07/06, ABI-05/03, and PB-1) during storage, cultivated in composts based on oat straw (Avena sativa) and Brachiaria spp. The experimental design was completely randomized in a factorial scheme 4 2 3 (irradiation doses composts strains), with 24 treatments, each consisting of 2 replicates, totaling 48 experimental units (samples of mushrooms). The mushrooms collected from all culture conditions were packaged in plastic polypropylene with 200 g each and subjected to Cobalt-60 irradiator, type Gammacell 220, and dose rate 0.740 kGy h–1 , according to the treatments. Subsequently, the control (nonirradiated) and other treatments were maintained at 4 ± 1°C and 90% relative humidity (RH) in a climatic chamber to perform the microbiological analysis of mushrooms on the 1st and 14th day of storage. According to the results, it was found that the highest mean colony psychotrophic count, after 14 days of storage, was observed in strain ABI-07/06 1.30 × 108 g -1 most probable number (MPN) in nonirradiated mushrooms, coming from Brachiaria grass-based compost, and this same strain under the same storage conditions, coming from the same type of compost that underwent a dose of 500 Gy, obtained a significant reduction in mean colonies of psychrotrophic bacteria (2.25 × 104 g –1 MPN). Thus, the irradiation doses tested favored reducing the number of colonies of psychrotrophic bacteria, regardless of the type of compound and strain of A. bisporus. |
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Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storageChampignonShelf lifePostharvestMushroomsWe evaluated the effect of gamma irradiation doses (0, 125, 250, and 500 Gy) in control of psychrotrophic bacteria in different strains of Agaricus bisporus (ABI-07/06, ABI-05/03, and PB-1) during storage, cultivated in composts based on oat straw (Avena sativa) and Brachiaria spp. The experimental design was completely randomized in a factorial scheme 4 2 3 (irradiation doses composts strains), with 24 treatments, each consisting of 2 replicates, totaling 48 experimental units (samples of mushrooms). The mushrooms collected from all culture conditions were packaged in plastic polypropylene with 200 g each and subjected to Cobalt-60 irradiator, type Gammacell 220, and dose rate 0.740 kGy h–1 , according to the treatments. Subsequently, the control (nonirradiated) and other treatments were maintained at 4 ± 1°C and 90% relative humidity (RH) in a climatic chamber to perform the microbiological analysis of mushrooms on the 1st and 14th day of storage. According to the results, it was found that the highest mean colony psychotrophic count, after 14 days of storage, was observed in strain ABI-07/06 1.30 × 108 g -1 most probable number (MPN) in nonirradiated mushrooms, coming from Brachiaria grass-based compost, and this same strain under the same storage conditions, coming from the same type of compost that underwent a dose of 500 Gy, obtained a significant reduction in mean colonies of psychrotrophic bacteria (2.25 × 104 g –1 MPN). Thus, the irradiation doses tested favored reducing the number of colonies of psychrotrophic bacteria, regardless of the type of compound and strain of A. bisporus.Universidade Estadual Paulista, UNESP, Faculdade de Ciências Agronômicas, FCA, Departamento de Produção Vegetal/Defesa Fitossanitária, Módulo de Cogumelos. Rua José Barbosa de Barros, 1780 - Fazenda Lageado. Caixa Postal 237, 18610-307. Botucatu, SP, BrasilUniversidade de São Paulo, USP, Escola Superior de Agricultura, ESALQ, Departamento de Agroindústria, Alimentos e Nutrição. Av. Pádua Dias, 11, Caixa Postal 9, 13418-900. Piracicaba, SP, Brasil.Universidade Estadual Paulista, UNESP, Faculdade de Ciências Agronômicas, FCA, Departamento de Produção Vegetal/Defesa Fitossanitária, Módulo de Cogumelos. Rua José Barbosa de Barros, 1780 - Fazenda Lageado. Caixa Postal 237, 18610-307. Botucatu, SP, BrasilUniversidade de São Paulo, USP, Escola Superior de Agricultura, ESALQ, Departamento de Agroindústria, Alimentos e Nutrição. Av. Pádua Dias, 11, Caixa Postal 9, 13418-900. Piracicaba, SP, Brasil.Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Andrade, Meire Cristina Nogueira de [UNESP]Jesus, João Paulo Furlan de [UNESP]Vieira, Fabrício Rocha [UNESP]Viana, Sthefany Rodrigues Fernandes [UNESP]Spoto, Marta Helena FilletMinhoni, Marli Teixeira de Almeida [UNESP]2016-04-01T18:46:17Z2016-04-01T18:46:17Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1623-1628application/pdfhttp://dx.doi.org/10.5897/AJAR12.2021African Journal of Agricultural Research, v. 8, n. 17, p. 1623-1628, 2013.1991-637Xhttp://hdl.handle.net/11449/13756510.5897/AJAR12.2021ISSN1991-637X-2013-08-17-1623-1628.pdfCurrículo Lattesreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAfrican Journal of Agricultural Researchinfo:eu-repo/semantics/openAccess2024-06-07T13:57:41Zoai:repositorio.unesp.br:11449/137565Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:48:58.586031Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storage |
title |
Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storage |
spellingShingle |
Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storage Andrade, Meire Cristina Nogueira de [UNESP] Champignon Shelf life Postharvest Mushrooms |
title_short |
Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storage |
title_full |
Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storage |
title_fullStr |
Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storage |
title_full_unstemmed |
Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storage |
title_sort |
Gamma irradiation can control the number of psychotrophic bacteria in Agaricus bisporus during storage |
author |
Andrade, Meire Cristina Nogueira de [UNESP] |
author_facet |
Andrade, Meire Cristina Nogueira de [UNESP] Jesus, João Paulo Furlan de [UNESP] Vieira, Fabrício Rocha [UNESP] Viana, Sthefany Rodrigues Fernandes [UNESP] Spoto, Marta Helena Fillet Minhoni, Marli Teixeira de Almeida [UNESP] |
author_role |
author |
author2 |
Jesus, João Paulo Furlan de [UNESP] Vieira, Fabrício Rocha [UNESP] Viana, Sthefany Rodrigues Fernandes [UNESP] Spoto, Marta Helena Fillet Minhoni, Marli Teixeira de Almeida [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Andrade, Meire Cristina Nogueira de [UNESP] Jesus, João Paulo Furlan de [UNESP] Vieira, Fabrício Rocha [UNESP] Viana, Sthefany Rodrigues Fernandes [UNESP] Spoto, Marta Helena Fillet Minhoni, Marli Teixeira de Almeida [UNESP] |
dc.subject.por.fl_str_mv |
Champignon Shelf life Postharvest Mushrooms |
topic |
Champignon Shelf life Postharvest Mushrooms |
description |
We evaluated the effect of gamma irradiation doses (0, 125, 250, and 500 Gy) in control of psychrotrophic bacteria in different strains of Agaricus bisporus (ABI-07/06, ABI-05/03, and PB-1) during storage, cultivated in composts based on oat straw (Avena sativa) and Brachiaria spp. The experimental design was completely randomized in a factorial scheme 4 2 3 (irradiation doses composts strains), with 24 treatments, each consisting of 2 replicates, totaling 48 experimental units (samples of mushrooms). The mushrooms collected from all culture conditions were packaged in plastic polypropylene with 200 g each and subjected to Cobalt-60 irradiator, type Gammacell 220, and dose rate 0.740 kGy h–1 , according to the treatments. Subsequently, the control (nonirradiated) and other treatments were maintained at 4 ± 1°C and 90% relative humidity (RH) in a climatic chamber to perform the microbiological analysis of mushrooms on the 1st and 14th day of storage. According to the results, it was found that the highest mean colony psychotrophic count, after 14 days of storage, was observed in strain ABI-07/06 1.30 × 108 g -1 most probable number (MPN) in nonirradiated mushrooms, coming from Brachiaria grass-based compost, and this same strain under the same storage conditions, coming from the same type of compost that underwent a dose of 500 Gy, obtained a significant reduction in mean colonies of psychrotrophic bacteria (2.25 × 104 g –1 MPN). Thus, the irradiation doses tested favored reducing the number of colonies of psychrotrophic bacteria, regardless of the type of compound and strain of A. bisporus. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2016-04-01T18:46:17Z 2016-04-01T18:46:17Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.5897/AJAR12.2021 African Journal of Agricultural Research, v. 8, n. 17, p. 1623-1628, 2013. 1991-637X http://hdl.handle.net/11449/137565 10.5897/AJAR12.2021 ISSN1991-637X-2013-08-17-1623-1628.pdf |
url |
http://dx.doi.org/10.5897/AJAR12.2021 http://hdl.handle.net/11449/137565 |
identifier_str_mv |
African Journal of Agricultural Research, v. 8, n. 17, p. 1623-1628, 2013. 1991-637X 10.5897/AJAR12.2021 ISSN1991-637X-2013-08-17-1623-1628.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
African Journal of Agricultural Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1623-1628 application/pdf |
dc.source.none.fl_str_mv |
Currículo Lattes reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129465008521216 |