Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)

Autores
Pappier, Ursula; Fernández Pinto, Virginia Elena; Larumbe, Ada Gabriela; Vaamonde, Graciela
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Incidence of fungal contamination of quinoa seeds from three locations (Salar de Uyuni, Bolivia; Salta and Tucumán provinces, Argentina) was analyzed in samples with and without treatment to remove saponins (wet method). In processed samples, the percentage of infection was reduced. Distribution of the different fungal genera was not homogeneous in the three locations (p < 0.05), although Penicillium and Aspergillus were the most prevalent contaminants, regardless the geographic origin of the samples. Other genera, such as Eurotium, Fusarium, Phoma, Ulocladium, Mucor and Rhizopus were less frequently isolated. Absidia, Alternaria, Cladosporium, Dreschlera, Epicoccum and Monascus were sporadically encountered. Significant differences (p < 0.05) in the distribution of fungal genera in samples with and without saponins from each location were observed. In all cases, processing caused a decrease of Aspergillus incidence, while increased the proportion of Penicillium, Eurotium, Mucor and Rhizopus indicating that these genera were part of the internal mycota. A. flavus and A. niger were the dominating species of genus Aspergillus. A similar pattern of prevalent Penicillium species was observed in samples with and without saponins, since P. aurantiogriseum, P.chrysogenum, P. citrinum and P. crustosum were always present in high number, although their relative density was variable according to the geographic origin of samples. Mycotoxin-producing ability of most representative species was also determined. Toxigenic strains of A. flavus (aflatoxins and cyclopiazonic acid), A. parasiticus (aflatoxins), P. citrinum (citrinin) and P. griseofulvum (cyclopiazonic acid) were found. None of the A. niger isolates was ochratoxin A producer. The above mentioned mycotoxins were not detected in the samples analyzed. © 2008 Elsevier B.V. All rights reserved.
Fil: Pappier, Ursula. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Fernández Pinto, Virginia Elena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Larumbe, Ada Gabriela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vaamonde, Graciela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Mycota
Quinoa
Saponins
Toxigenic Fungi
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/37802
Acceder
id CONICETDig_1ba2f814d5dd3041fe5eced74be1499b
oai_identifier_str oai:ri.conicet.gov.ar:11336/37802
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)Pappier, UrsulaFernández Pinto, Virginia ElenaLarumbe, Ada GabrielaVaamonde, GracielaMycotaQuinoaSaponinsToxigenic FungiIncidence of fungal contamination of quinoa seeds from three locations (Salar de Uyuni, Bolivia; Salta and Tucumán provinces, Argentina) was analyzed in samples with and without treatment to remove saponins (wet method). In processed samples, the percentage of infection was reduced. Distribution of the different fungal genera was not homogeneous in the three locations (p < 0.05), although Penicillium and Aspergillus were the most prevalent contaminants, regardless the geographic origin of the samples. Other genera, such as Eurotium, Fusarium, Phoma, Ulocladium, Mucor and Rhizopus were less frequently isolated. Absidia, Alternaria, Cladosporium, Dreschlera, Epicoccum and Monascus were sporadically encountered. Significant differences (p < 0.05) in the distribution of fungal genera in samples with and without saponins from each location were observed. In all cases, processing caused a decrease of Aspergillus incidence, while increased the proportion of Penicillium, Eurotium, Mucor and Rhizopus indicating that these genera were part of the internal mycota. A. flavus and A. niger were the dominating species of genus Aspergillus. A similar pattern of prevalent Penicillium species was observed in samples with and without saponins, since P. aurantiogriseum, P.chrysogenum, P. citrinum and P. crustosum were always present in high number, although their relative density was variable according to the geographic origin of samples. Mycotoxin-producing ability of most representative species was also determined. Toxigenic strains of A. flavus (aflatoxins and cyclopiazonic acid), A. parasiticus (aflatoxins), P. citrinum (citrinin) and P. griseofulvum (cyclopiazonic acid) were found. None of the A. niger isolates was ochratoxin A producer. The above mentioned mycotoxins were not detected in the samples analyzed. © 2008 Elsevier B.V. All rights reserved.Fil: Pappier, Ursula. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Fernández Pinto, Virginia Elena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Larumbe, Ada Gabriela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vaamonde, Graciela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science2008-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/37802Pappier, Ursula; Fernández Pinto, Virginia Elena; Larumbe, Ada Gabriela; Vaamonde, Graciela; Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.); Elsevier Science; International Journal of Food Microbiology; 125; 2; 7-2008; 153-1570168-1605CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0168160508001608info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijfoodmicro.2008.03.039info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:24:22Zoai:ri.conicet.gov.ar:11336/37802instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:24:22.502CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)
title Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)
spellingShingle Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)
Pappier, Ursula
Mycota
Quinoa
Saponins
Toxigenic Fungi
title_short Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)
title_full Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)
title_fullStr Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)
title_full_unstemmed Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)
title_sort Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.)
dc.creator.none.fl_str_mv Pappier, Ursula
Fernández Pinto, Virginia Elena
Larumbe, Ada Gabriela
Vaamonde, Graciela
author Pappier, Ursula
author_facet Pappier, Ursula
Fernández Pinto, Virginia Elena
Larumbe, Ada Gabriela
Vaamonde, Graciela
author_role author
author2 Fernández Pinto, Virginia Elena
Larumbe, Ada Gabriela
Vaamonde, Graciela
author2_role author
author
author
dc.subject.none.fl_str_mv Mycota
Quinoa
Saponins
Toxigenic Fungi
topic Mycota
Quinoa
Saponins
Toxigenic Fungi
dc.description.none.fl_txt_mv Incidence of fungal contamination of quinoa seeds from three locations (Salar de Uyuni, Bolivia; Salta and Tucumán provinces, Argentina) was analyzed in samples with and without treatment to remove saponins (wet method). In processed samples, the percentage of infection was reduced. Distribution of the different fungal genera was not homogeneous in the three locations (p < 0.05), although Penicillium and Aspergillus were the most prevalent contaminants, regardless the geographic origin of the samples. Other genera, such as Eurotium, Fusarium, Phoma, Ulocladium, Mucor and Rhizopus were less frequently isolated. Absidia, Alternaria, Cladosporium, Dreschlera, Epicoccum and Monascus were sporadically encountered. Significant differences (p < 0.05) in the distribution of fungal genera in samples with and without saponins from each location were observed. In all cases, processing caused a decrease of Aspergillus incidence, while increased the proportion of Penicillium, Eurotium, Mucor and Rhizopus indicating that these genera were part of the internal mycota. A. flavus and A. niger were the dominating species of genus Aspergillus. A similar pattern of prevalent Penicillium species was observed in samples with and without saponins, since P. aurantiogriseum, P.chrysogenum, P. citrinum and P. crustosum were always present in high number, although their relative density was variable according to the geographic origin of samples. Mycotoxin-producing ability of most representative species was also determined. Toxigenic strains of A. flavus (aflatoxins and cyclopiazonic acid), A. parasiticus (aflatoxins), P. citrinum (citrinin) and P. griseofulvum (cyclopiazonic acid) were found. None of the A. niger isolates was ochratoxin A producer. The above mentioned mycotoxins were not detected in the samples analyzed. © 2008 Elsevier B.V. All rights reserved.
Fil: Pappier, Ursula. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Fernández Pinto, Virginia Elena. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Larumbe, Ada Gabriela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vaamonde, Graciela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Incidence of fungal contamination of quinoa seeds from three locations (Salar de Uyuni, Bolivia; Salta and Tucumán provinces, Argentina) was analyzed in samples with and without treatment to remove saponins (wet method). In processed samples, the percentage of infection was reduced. Distribution of the different fungal genera was not homogeneous in the three locations (p < 0.05), although Penicillium and Aspergillus were the most prevalent contaminants, regardless the geographic origin of the samples. Other genera, such as Eurotium, Fusarium, Phoma, Ulocladium, Mucor and Rhizopus were less frequently isolated. Absidia, Alternaria, Cladosporium, Dreschlera, Epicoccum and Monascus were sporadically encountered. Significant differences (p < 0.05) in the distribution of fungal genera in samples with and without saponins from each location were observed. In all cases, processing caused a decrease of Aspergillus incidence, while increased the proportion of Penicillium, Eurotium, Mucor and Rhizopus indicating that these genera were part of the internal mycota. A. flavus and A. niger were the dominating species of genus Aspergillus. A similar pattern of prevalent Penicillium species was observed in samples with and without saponins, since P. aurantiogriseum, P.chrysogenum, P. citrinum and P. crustosum were always present in high number, although their relative density was variable according to the geographic origin of samples. Mycotoxin-producing ability of most representative species was also determined. Toxigenic strains of A. flavus (aflatoxins and cyclopiazonic acid), A. parasiticus (aflatoxins), P. citrinum (citrinin) and P. griseofulvum (cyclopiazonic acid) were found. None of the A. niger isolates was ochratoxin A producer. The above mentioned mycotoxins were not detected in the samples analyzed. © 2008 Elsevier B.V. All rights reserved.
publishDate 2008
dc.date.none.fl_str_mv 2008-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/37802
Pappier, Ursula; Fernández Pinto, Virginia Elena; Larumbe, Ada Gabriela; Vaamonde, Graciela; Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.); Elsevier Science; International Journal of Food Microbiology; 125; 2; 7-2008; 153-157
0168-1605
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37802
identifier_str_mv Pappier, Ursula; Fernández Pinto, Virginia Elena; Larumbe, Ada Gabriela; Vaamonde, Graciela; Effect of processing for saponin removal on fungal contamination of quinoa seeds (Chenopodium quinoa Willd.); Elsevier Science; International Journal of Food Microbiology; 125; 2; 7-2008; 153-157
0168-1605
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0168160508001608
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijfoodmicro.2008.03.039
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.124843

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