By measuring microbial indicators, you can determine whether food is contaminated by microorganisms and understand the growth status of microorganisms during the processing of raw materials or processing workshops, provide scientific basis for food environmental hygiene management, food production management, and provide epidemic prevention measures for certain infectious diseases.
Food microbiological testing indicators refer to the relevant sanitary requirements for different types of specific food from the point of view of microbiology.
The total number of colonies is mainly used as an indicator to determine the degree of sample contamination. The method can also be used to observe the nature and propagation dynamics of bacteria in samples, provide a scientific basis for comprehensive evaluation of hygienic samples, and help predict the storage period of food.
So microbiological analysis of food products is very important. We need professional equipment to analyze the data, food microbiology lab equipment such as microbial test kit for food is very practical in food sanitation test.
Escherichia coli: a group of aerobic facultative anaerobic Gram-negative bacilli, cultured for 48 hours, fermenting lactose, acid and gas at 36°C. The flora is mainly derived from the feces of humans and animals. As an indicator of fecal contamination, it can evaluate the hygienic status of food and infer the possibility of intestinal pathogenic bacteria contamination in food.
Use mold and yeast as indicator bacteria to evaluate the hygienic quality of the sample (mould), and determine the degree of contamination of the sample by the number of mold and yeast. Moldy foods have unacceptable undesirable organoleptic properties, such as irritating smells, abnormal colors, sourness, and tissue ulcers.
1. Determine the sampling plan according to the inspection purpose, the food characteristics, the batch, the test method, the damage degree of the microorganism, etc.
2. Sampling uses random principles to ensure representative samples collected.
3. The sampling process follows aseptic procedures to prevent all possible external contamination.
4. During the process of storage and transportation, the necessary measures should be taken to prevent the change of the original microorganisms’ number in the sample and maintain the original sample state.
In the process of food testing, from sampling, sample preparation, microbial culture to final interpretation, relevant technologies and mature product support are required. The ELEX range is designed to meet the needs of the microbiological testing process, such as swab sampler, sterile sample bags, contact agar media, homogenizers, DNP Medi·Ca culture media plate, and so on.