C. Brera - Academia.edu (original) (raw)

Papers by C. Brera

Research paper thumbnail of Le aflatossine: problematiche connesse ai programmi di intervento

Consiglio Nazionale delle Ricerche (CNR). Biblioteca Centrale / CNR - Consiglio Nazionale delle R... more Consiglio Nazionale delle Ricerche (CNR). Biblioteca Centrale / CNR - Consiglio Nazionale delle RichercheSIGLEITItal

Research paper thumbnail of Mycotoxins within the framework of exposure assessment: past present and future

Research paper thumbnail of 55. Detection and Quantification of Genetically Modified Organisms in Food by DNA-Based and Protein-Based Methods

Research paper thumbnail of 3rd National Congress on mycotoxins in food and feed

Research paper thumbnail of Molecular investigation of possible causal relationships between autism spectrum disorder and mycotoxins: a support from bioinformatics

Research paper thumbnail of Mycotoxins: correct sampling leads to accurate analysis

Research paper thumbnail of Mycotoxins: problems, criteria for intervention and prospects

Research paper thumbnail of Mycotoxin mixtures in food and feed: holistic, innovative, flexible risk assessment modelling approach

EFSA Supporting Publications, 2020

Research paper thumbnail of Immunoaffinity Column Cleanup with Liquid Chromatography Using Post-Column Bromination for Determination of Aflatoxin B1 in Cattle Feed: Collaborative Study

Journal of AOAC INTERNATIONAL, 2003

A collaborative study was conducted to evaluate the effectiveness of an immunoaffinity column cle... more A collaborative study was conducted to evaluate the effectiveness of an immunoaffinity column cleanup liquid chromatography (LC) method for determination of aflatoxin B1 in cattle feed at a possible future European regulatory limit (1 ng/g). The test portion was extracted with acetone–water (85 + 15), filtered, diluted with water, and applied to an immunoaffinity column. The column was washed with water to remove interfering compounds, and the purified aflatoxin B1 was eluted with methanol. Aflatoxin B1 was separated and determined by reversed-phase liquid chromatography (RP–LC) and detected by fluorescence after post column derivatization (PCD) involving bromination. PCD was achieved with either pyridinium hydrobromide perbromide (PBPB), used by 14 laboratories, or an electrochemical cell and addition of bromide to the mobile phase, used by 7 laboratories. Both derivatization techniques were not significantly different when compared by the t-test; the method was statistically evalu...

Research paper thumbnail of Carry-over of DNA from genetically modified soyabean and maize to cow’s milk

Journal of Animal and Feed Sciences, 2016

Research paper thumbnail of Principi innovativi per l'analisi del rischio negli alimenti : il caso delle micotossine

Research paper thumbnail of Serum levels of ochratoxin A in healthy adults in Tuscany: correlation with individual characteristics and between repeat measurements

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 1999

Ochratoxin A (OTA), a mycotoxin widely contaminating staple foods and beverages, has been classif... more Ochratoxin A (OTA), a mycotoxin widely contaminating staple foods and beverages, has been classified as a "possible human carcinogen (Group 2B)" by the IARC. Serum levels of OTA were measured in a group of 138 healthy adults (age, 35-65 years) living in the area surrounding Florence (Tuscany, central Italy) and detected in all but four samples (97%). After the exclusion of one subject with a peak value of 57.2 ng/ml, OTA levels ranged between 0.12 and 2.84 ng/ml, with mean and median values of 0.56 and 0.48 ng/ml, respectively. OTA levels were significantly higher in men than in women (0.64 versus 0.50) and correlated positively with height. A strong association was found with the season in which blood samples were obtained, with summer values higher than autumn values. On the other hand, OTA levels tended to be negatively associated with blood pressure, either systolic or diastolic; no association was evident with age, weight, body mass index, and smoking history. The ass...

Research paper thumbnail of Contributor contact details

Animal Feed Contamination, 2012

Research paper thumbnail of Natural occurrence of mycotoxins in cereals and spices commercialized in Morocco

Research paper thumbnail of The role of sampling in mycotoxin contamination: An holistic view

Food Additives & Contaminants, 2005

Research paper thumbnail of Proficiency testing as a tool for implementing internal quality control: the case of ochratoxin A in cocoa powder

Accreditation and Quality Assurance, 2006

This paper describes the interlaboratory study aimed at assessing the performance of 18 laborator... more This paper describes the interlaboratory study aimed at assessing the performance of 18 laboratories (14 national and 4 European) for Ochratoxin A (OTA) determination in cocoa powder samples. The study was tested at three levels of OTA covering the range in which presumably European regulatory limits could fall in the near future. For the extraction step, almost all laboratories used

Research paper thumbnail of Ruolo degli studi di biomonitoraggio nella valutazione dell’esposizione alle micotossine: i progetti BIODAF e HBM4EU

Research paper thumbnail of Mycotoxin concentration data quality: the role of sampling

Mycotoxins: detection methods, management, public health and agricultural trade, 2008

Research paper thumbnail of Developments in mycotoxin analysis: an update for 2009-2010

World Mycotoxin Journal, 2011

Research paper thumbnail of Evaluation of sampling criteria for the detection of GM soybeans in bulk

Italian journal of food …, 2005

Résumé/Abstract The aim of this study was to develop a sampling procedure to quantify genetically... more Résumé/Abstract The aim of this study was to develop a sampling procedure to quantify genetically-modified Round-up Ready (GM RR) soybeans in a lot. Seven lots (35 kg each) fortified with three different percentages of GM RR soybeans (4 lots at 1%, 2 lots at 10%, ...

Research paper thumbnail of Le aflatossine: problematiche connesse ai programmi di intervento

Consiglio Nazionale delle Ricerche (CNR). Biblioteca Centrale / CNR - Consiglio Nazionale delle R... more Consiglio Nazionale delle Ricerche (CNR). Biblioteca Centrale / CNR - Consiglio Nazionale delle RichercheSIGLEITItal

Research paper thumbnail of Mycotoxins within the framework of exposure assessment: past present and future

Research paper thumbnail of 55. Detection and Quantification of Genetically Modified Organisms in Food by DNA-Based and Protein-Based Methods

Research paper thumbnail of 3rd National Congress on mycotoxins in food and feed

Research paper thumbnail of Molecular investigation of possible causal relationships between autism spectrum disorder and mycotoxins: a support from bioinformatics

Research paper thumbnail of Mycotoxins: correct sampling leads to accurate analysis

Research paper thumbnail of Mycotoxins: problems, criteria for intervention and prospects

Research paper thumbnail of Mycotoxin mixtures in food and feed: holistic, innovative, flexible risk assessment modelling approach

EFSA Supporting Publications, 2020

Research paper thumbnail of Immunoaffinity Column Cleanup with Liquid Chromatography Using Post-Column Bromination for Determination of Aflatoxin B1 in Cattle Feed: Collaborative Study

Journal of AOAC INTERNATIONAL, 2003

A collaborative study was conducted to evaluate the effectiveness of an immunoaffinity column cle... more A collaborative study was conducted to evaluate the effectiveness of an immunoaffinity column cleanup liquid chromatography (LC) method for determination of aflatoxin B1 in cattle feed at a possible future European regulatory limit (1 ng/g). The test portion was extracted with acetone–water (85 + 15), filtered, diluted with water, and applied to an immunoaffinity column. The column was washed with water to remove interfering compounds, and the purified aflatoxin B1 was eluted with methanol. Aflatoxin B1 was separated and determined by reversed-phase liquid chromatography (RP–LC) and detected by fluorescence after post column derivatization (PCD) involving bromination. PCD was achieved with either pyridinium hydrobromide perbromide (PBPB), used by 14 laboratories, or an electrochemical cell and addition of bromide to the mobile phase, used by 7 laboratories. Both derivatization techniques were not significantly different when compared by the t-test; the method was statistically evalu...

Research paper thumbnail of Carry-over of DNA from genetically modified soyabean and maize to cow’s milk

Journal of Animal and Feed Sciences, 2016

Research paper thumbnail of Principi innovativi per l'analisi del rischio negli alimenti : il caso delle micotossine

Research paper thumbnail of Serum levels of ochratoxin A in healthy adults in Tuscany: correlation with individual characteristics and between repeat measurements

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 1999

Ochratoxin A (OTA), a mycotoxin widely contaminating staple foods and beverages, has been classif... more Ochratoxin A (OTA), a mycotoxin widely contaminating staple foods and beverages, has been classified as a "possible human carcinogen (Group 2B)" by the IARC. Serum levels of OTA were measured in a group of 138 healthy adults (age, 35-65 years) living in the area surrounding Florence (Tuscany, central Italy) and detected in all but four samples (97%). After the exclusion of one subject with a peak value of 57.2 ng/ml, OTA levels ranged between 0.12 and 2.84 ng/ml, with mean and median values of 0.56 and 0.48 ng/ml, respectively. OTA levels were significantly higher in men than in women (0.64 versus 0.50) and correlated positively with height. A strong association was found with the season in which blood samples were obtained, with summer values higher than autumn values. On the other hand, OTA levels tended to be negatively associated with blood pressure, either systolic or diastolic; no association was evident with age, weight, body mass index, and smoking history. The ass...

Research paper thumbnail of Contributor contact details

Animal Feed Contamination, 2012

Research paper thumbnail of Natural occurrence of mycotoxins in cereals and spices commercialized in Morocco

Research paper thumbnail of The role of sampling in mycotoxin contamination: An holistic view

Food Additives & Contaminants, 2005

Research paper thumbnail of Proficiency testing as a tool for implementing internal quality control: the case of ochratoxin A in cocoa powder

Accreditation and Quality Assurance, 2006

This paper describes the interlaboratory study aimed at assessing the performance of 18 laborator... more This paper describes the interlaboratory study aimed at assessing the performance of 18 laboratories (14 national and 4 European) for Ochratoxin A (OTA) determination in cocoa powder samples. The study was tested at three levels of OTA covering the range in which presumably European regulatory limits could fall in the near future. For the extraction step, almost all laboratories used

Research paper thumbnail of Ruolo degli studi di biomonitoraggio nella valutazione dell’esposizione alle micotossine: i progetti BIODAF e HBM4EU

Research paper thumbnail of Mycotoxin concentration data quality: the role of sampling

Mycotoxins: detection methods, management, public health and agricultural trade, 2008

Research paper thumbnail of Developments in mycotoxin analysis: an update for 2009-2010

World Mycotoxin Journal, 2011

Research paper thumbnail of Evaluation of sampling criteria for the detection of GM soybeans in bulk

Italian journal of food …, 2005

Résumé/Abstract The aim of this study was to develop a sampling procedure to quantify genetically... more Résumé/Abstract The aim of this study was to develop a sampling procedure to quantify genetically-modified Round-up Ready (GM RR) soybeans in a lot. Seven lots (35 kg each) fortified with three different percentages of GM RR soybeans (4 lots at 1%, 2 lots at 10%, ...