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Project Title: Bacterial Pathogen Contamination And Possible Transmission In Selected Agricultural Farms In Laguna And Quezon Provinces, Philippines Towards The Improvement Of Control Strategies For Food Safety

Project No.: E-234
Scientific Division: V - Biological Sciences
Project Leader: Bernadette Colle Mendoza
Implementing Agency: University of the Philippines - Los BaƱos
Project Description:
The promotion of a healthier lifestyle and balanced diet has contributed to an increasing consumption of fruits and vegetables, especially those which are eaten raw or are minimally processed . While this is desirable for better health, the increased demand for fresh produce has brought about attendant concerns on the risks associated with the safety of these foods, whether conventionally or organically grown. Foremost among these is the concern about contamination with microbial pathogens, especially pathogenic bacteria. Bacterial pathogens frequently associated with the consumption of raw or fresh vegetables include various strains/serotypes of Salmonella, Shigella and Enteropathogenic (EPEC) and Enterohemorrhagic (EHEC) E. coli (Beuchat, 2002; Steele and Odumeru, 2004; Stine et al., 2005; Brandl, 2006; Berger et al., 2010; and Aycicek et al., 2006). Others like Listeria monocytogenes, Staphylococcus aureus, Bacillus cereus, Clostridium perfringens and Clostridium botulinum have also been occasionally reported in some types of food (Harris et al., 2006; and Kim et al., 2006). Foodborne disease outbreaks linked to the consumption of unprocessed agricultural products like vegetables have increased in recent years (Brandl, 2006; Lynch et al., 2009; and Berger et al., 2010). In the European Union, US and other countries, the following raw foods have been vehicles for the outbreaks : raddish and other seed sprouts, spinach, leafy green vegetables, tomatoes, peppers and basil ((Berger et al., 2010), parsley, dill and carrots (Aycicek et al., 2006), sweet potato, cabbage, sesame leaves and tubers (Kim et al., 2006). Such disease outbreaks, which frequently result to diarrhea and, possibly, some other complications, have contributed to the global health burden. In the Philippines (which is primarily still an agricultural country), while it is likely that there are similar cases associated with consumption of contaminated raw vegetables, these are seldom reported, moreso published. The problem on the safety of this type of foods, however, remains. For effective interventions, it must be recognized that disease occurrence due to this is a convergence of several factors: increase in per capita consumption of raw or minimally processed agricultural produce, increased international trade and distribution, a rise in the number of immunocompromised consumers, the complex biology and ecology of the microbial pathogens, changes in agronomic and processing practices and other factors (Beuchat, 2002). The main objective of this project is, thus, to determine the extent of bacterial pathogen (selected) contamination in agricultural soils and farm produce in the Philippines, particularly in the provinces of Laguna and Quezon; and assess the possible transmission patterns and the risk factors involved, with implications to food safety and public health.

Period Covered: 05/01/2018 - 04/30/2020
Duration: 24 months
Status: Ongoing
Extended Period : 07/01/2020 - 06/30/2021

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