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Isolation and identification of mycotoxigenic fungi in selected foods and feeds
1Food and Nutrition Research Institute (FNRI), Department of Science and Technology (DOST), Bicutan, Taguig, Metro Manila, Philippines.
Abstract:
Mycotoxigenic fungi were isolated and identified from selected food and feed samples obtained in Metro Manila public markets, a Laguna coconut mill, and FNRI rat breeder's diet using the serial dilution and moisture chamber techniques. The majority of the isolates identified belong to the genera Aspergillus and Mucorales and a few to the Penicillium. Taxonomical identification was based on the morphological characteristics of the fungi as observed under the microscope.
Insights
This study identified mycotoxigenic fungi, primarily Aspergillus and Mucorales, in food and feed samples from Metro Manila markets and a coconut mill. These findings highlight potential risks associated with fungal contamination in food and animal feed.
Area of Science:
- Food microbiology
- Mycology
- Food safety
Background:
- Mycotoxigenic fungi pose a significant threat to food and feed safety.
- Contamination of food and feed with mycotoxins can lead to adverse health effects.
- Monitoring fungal contamination in food and feed is crucial for public health.
Purpose of the Study:
- To isolate and identify mycotoxigenic fungi from various food and feed samples.
- To determine the prevalence of fungal genera in selected food and feed sources.
- To assess potential risks associated with fungal contamination in the food supply chain.
Main Methods:
- Samples were collected from Metro Manila public markets, a Laguna coconut mill, and FNRI rat breeder's diet.
- Serial dilution and moisture chamber techniques were employed for fungal isolation.
- Taxonomical identification was based on morphological characteristics observed under a microscope.
Main Results:
- The majority of isolated fungi belonged to the genera Aspergillus and Mucorales.
- A few isolates were identified as Penicillium.
- Aspergillus and Mucorales were the predominant fungal genera found in the analyzed samples.
Conclusions:
- Aspergillus and Mucorales are common contaminants in food and feed samples in the studied areas.
- Microscopic identification confirmed the presence of potentially mycotoxigenic fungi.
- Further studies are needed to assess the mycotoxin production potential of these isolates and their implications for food safety.