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Determination of Bacterial Pathogen in Foods for Export and their Raw Material

Abstract

Chile is a South American country with an important fish and shellfish production. These products are some of the most important items for the economy of the country. From 1998 to 2001, Chile exported $1 137 625 788 of fish and shellfish. Statistics also show that frozen vegetables are fast becoming high on the food export list. During recent years (1998 to 2001) $223 312 248 worth of frozen vegetables were exported to different countries. This study was performed to trace the presence of pathogens in some of these Chilean foods to be exported: 97 samples of salmon and 84 samples of different frozen vegetables (asparagus, peas and corn) were analyzed in order to determine their levels of microbial contamination. Total bacteria counts (mesophilic aerobes bacteria), Escherichia coli, Staphylococcus aureus, Bacillus cereus, Clostridium perfringens, Salmonella spp. and Listeria monocytogenes were tested. Vibrio cholerae was tested only in salmon samples. The analysis of salmon samples showed that the raw material presented a very good quality. However, during the filleting process the fish was contaminated, presenting higher total bacteria counts. Only one of the 48 final product samples presented contamination with a pathogenic bacteria (Listeria monocytogenes (<100 cfu/g)). Frozen vegetable samples (raw  More>>
Authors:
Marambio, E.; Cordano, A. M.; Insunza, M.; Fernández, M.; Astorga, J. [1] 
  1. Sección Microbiología de Alimentos, Instituto de Salud Pública de Chile (Chile)
Publication Date:
Jan 15, 2005
Product Type:
Conference
Report Number:
IAEA-TECDOC-1431
Resource Relation:
Conference: Final Research Coordination Meeting on determination of human pathogen profiles in food by quality assured microbial assays, Mexico City (Mexico), 22-26 Jul 2002; Other Information: 5 refs., 4 tabs.; Related Information: In: Determination of human pathogen profiles in food by quality assured microbial assays. Proceedings of a final Research Coordination Meeting| 140 p.
Subject:
60 APPLIED LIFE SCIENCES; BACILLUS CEREUS; CHILE; CLOSTRIDIUM PERFRINGENS; CONTAMINATION; ESCHERICHIA COLI; EXPORTS; FOOD PROCESSING; MANUFACTURING; PATHOGENS; PEAS; RAW MATERIALS; SALMON; SALMONELLA; STAPHYLOCOCCUS
OSTI ID:
22309214
Research Organizations:
International Atomic Energy Agency, Food and Environmental Protection Section, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISBN 92-0-115704-5; ISSN 1011-4289; TRN: XA14M7160015387
Availability:
Available from INIS in electronic form. Also available on-line: http://www-pub.iaea.org/MTCD/Publications/PDF/te_1431_web.pdf; Enquiries should be addressed to IAEA, Marketing and Sales Unit, Publishing Section, E-mail: sales.publications@iaea.org; Web site: http://www.iaea.org/books
Submitting Site:
INIS
Size:
page(s) 43-49
Announcement Date:
Mar 02, 2015

Citation Formats

Marambio, E., Cordano, A. M., Insunza, M., Fernández, M., and Astorga, J. Determination of Bacterial Pathogen in Foods for Export and their Raw Material. IAEA: N. p., 2005. Web.
Marambio, E., Cordano, A. M., Insunza, M., Fernández, M., &amp; Astorga, J. Determination of Bacterial Pathogen in Foods for Export and their Raw Material. IAEA.
Marambio, E., Cordano, A. M., Insunza, M., Fernández, M., and Astorga, J. 2005. "Determination of Bacterial Pathogen in Foods for Export and their Raw Material." IAEA.
@misc{etde_22309214,
title = {Determination of Bacterial Pathogen in Foods for Export and their Raw Material}
author = {Marambio, E., Cordano, A. M., Insunza, M., Fernández, M., and Astorga, J.}
abstractNote = {Chile is a South American country with an important fish and shellfish production. These products are some of the most important items for the economy of the country. From 1998 to 2001, Chile exported $1 137 625 788 of fish and shellfish. Statistics also show that frozen vegetables are fast becoming high on the food export list. During recent years (1998 to 2001) $223 312 248 worth of frozen vegetables were exported to different countries. This study was performed to trace the presence of pathogens in some of these Chilean foods to be exported: 97 samples of salmon and 84 samples of different frozen vegetables (asparagus, peas and corn) were analyzed in order to determine their levels of microbial contamination. Total bacteria counts (mesophilic aerobes bacteria), Escherichia coli, Staphylococcus aureus, Bacillus cereus, Clostridium perfringens, Salmonella spp. and Listeria monocytogenes were tested. Vibrio cholerae was tested only in salmon samples. The analysis of salmon samples showed that the raw material presented a very good quality. However, during the filleting process the fish was contaminated, presenting higher total bacteria counts. Only one of the 48 final product samples presented contamination with a pathogenic bacteria (Listeria monocytogenes (<100 cfu/g)). Frozen vegetable samples (raw material and final products) did not present any of the pathogen bacteria studied. The mesophilic aerobes bacteria counts were reduced during processing due to the effectiveness of the good manufacturing practices and the technological process used. (author)}
place = {IAEA}
year = {2005}
month = {Jan}
}