Food Safety Detection

Food safety is a major and basic livelihood issue that concerns every family and every individual. Strengthening supervision and improving the quality of the food industry are the fundamental foundations for the sustainable and stable improvement of the food safety situation. Food safety issues include chemical hazards, biotoxins, microbiological hazards, food adulteration, and safety of genetically modified foods.

Food Detection Indicators

As an important part and key link of food safety, food testing is of great significance.

Microbial Detection Indicators

Total Number of Colonies
The total number of colonies is an indicative microbial index, not a pathogenic bacteria index. It is mainly used to evaluate the cleanliness of food and reflect whether the food meets the hygienic requirements during the production process.
Coliform Bacteria
Coliform is one of the commonly used indicator bacteria for food contamination at home and abroad. The detection of coliform bacteria in food indicates that it is more likely to be contaminated by pathogenic bacteria (such as Salmonella, Shigella, and pathogenic Escherichia coli).
Mold
Mold can spoil the food, destroy the color, aroma and taste of the food, and reduce the edible value of the food. The main reason for mold exceeding the standard may be that the raw materials or packaging materials are contaminated by mold, and the sanitary conditions of the product are not properly controlled during the production and processing process.
Pseudomonas Aeruginosa
Pseudomonas aeruginosa is an opportunistic pathogen, widely distributed in a variety of water, air, normal human skin, respiratory tract and intestinal tract, etc. It is easy to survive in a humid environment and has strong resistance to disinfectants, ultraviolet rays, etc. Resistance, there are health risks for people with weak resistance.

Mycotoxins Detection Indicators

Aflatoxin B1
Among natural foods, aflatoxin B1 is the most common and most harmful. Quality inspection departments of most countries and regulations stipulate that aflatoxin B1 is one of the mandatory inspection items for most foods.
Deoxynivalenol (DON)
Deoxynivalenol (DON) is one of the important indicators of grain mildew and one of the most widespread natural toxins that contaminate grain and animal feed. People who eat cereals seriously contaminated with DON can cause vomiting, diarrhea, headache, dizziness and other poisoning symptoms.

Quality Inspection Indicators

Acid Value
The acid value mainly reflects the degree of rancidity of the oils and fats in the food.
Peroxide Value (POV)
The peroxide value mainly reflects whether the oil is oxidized and deteriorated. With the oxidation of oil, the peroxide value will gradually increase. Although it generally does not cause damage to human health, it can cause gastrointestinal discomfort, diarrhea and other symptoms in severe cases.
Volatile Base Nitrogen
Volatile base nitrogen is an indicator of animal food spoilage. The higher the volatile base nitrogen content, the more amino acids are destroyed, and the greater the impact on nutritional value.
Alcohol Content
Alcohol content, also known as alcohol content, refers to the number of milliliters of ethanol (alcohol) contained in 100 milliliters of wine at 20°C. Alcohol content is an important physical and chemical index of alcoholic products, and substandard content mainly affects the quality of products.
Amino Nitrogen
Amino acid nitrogen is one of the characteristic quality indicators of soy sauce. The higher the amino acid nitrogen content, the better the quality of soy sauce and the stronger the umami. The unqualified amino acid nitrogen mainly affects the flavor of the product.

Additive Detection Indicators

Sweetener

Sodium cyclamate
Sodium saccharin
Acesulfame potassium
Ammonium glycyrrhizinate

Preservative

Sulfur dioxide
Natamycin
Dehydroacetic acid
Benzoic acid

Food Coloring

Lemon yellow
Sunset yellow
Carmine
Allura red

Our Services

Utilizing the DeteCas^TM platform based on the CRISPR-Cas system, CD BioSciences can provide various services in food safety detection, such as nucleic acids detection service, metal ion detection service and small molecule detection service. If you are interested in these services, please contact us.

References

Lin X.F., et al. CRISPR-Cas12a-mediated luminescence resonance energy transfer aptasensing platform for deoxynivalenol using gold nanoparticle-decorated Ti3C2Tx MXene as the enhanced quencher. Journal of Hazardous Materials, 2022, 5(433): 128750.
Zhang T., et al. Direct Detection of Foodborne Pathogens via a Proximal DNA Probe-Based CRISPR-Cas12 Assay. Journal of Agricultural and Food Chemistry, 2021.
Xu W.J., et al. Research progress of pathogen detection technology based on CRISPR/Cas biosensing principle. China Biotechnology, 2021, 41(8): 8.

For research use only. Not intended for any clinical use.