Journal of Food Technology and Preservation

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Short Communication - Journal of Food Technology and Preservation (2021) Volume 5, Issue 4

A brief discussion about food microbiology.

Joseph Jareen *

Department of Microbiology, Dartmouth College, Hanover, United States

Corresponding Author:
Joseph Jareen
Department of Microbiology
Dartmouth College
United state
[email protected]

Accepted date: 25 April, 2021

Citation: Jareen J.A brief discussion about food microbiology,J Food Technol Pres 2021;5(4):1-2.

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Food microbiology is the investigation of the microorganisms that restrain, make, or debase food. This incorporates the investigation of microorganisms causing food deterioration; microbes that may cause sickness (particularly if food is inappropriately cooked or put away); organisms used to create matured food sources like cheddar, yogurt, bread, lager, and wine; and organisms with other valuable jobs, for example, delivering probiotics. Microorganisms are of extraordinary importance to food varieties for the accompanying reasons: Microorganisms can cause decay of food sources, microorganisms are utilized to fabricate a wide assortment of food items, and microbial sicknesses can be communicated by food sources. The extent of Food Microbiology is to test the crude materials, inmeasure and completed item to ensure the purchasers are protected to devour the food. They ought to give logical or innovative headway in the particular field of interest of the diary and upgrade its solid worldwide standing.


Microbiology, Food, Yogurt, Bread, Lager, Wine, Microorganisms.


Sub group of bacteria that effect food

In the investigation of microbes in food, significant gatherings have been partitioned dependent on specific attributes. These groupings are not of ordered importance, Lactic corrosive microorganisms are microbes that utilization carbs to deliver lactic corrosive. The primary genera are Lactococcus, Leuconostoc, Pediococcus, Lactobacillus and Streptococcus thermophilus. Acidic corrosive microscopic organisms like Acetobacter aceti produce acidic corrosive. Microscopic organisms, for example, Propionibacterium freudenreichii that produce propionic corrosive are utilized to mature dairy items. Some Clostridium spp. Clostridium butyricum produce butyric corrosive [1]. Proteolytic microscopic organisms hydrolyze proteins by delivering extracellulat proteinases. This gathering incorporates microbe’s species from the Micrococcus, Staphylococcus, Bacillus, Clostridium, Pseudomonas, Alteromonas, Flavobacterium and Alcaligenes genera, and more restricted from Entereobacteriaceae and Brevibacterium. Lipolytic microbes hydrolyze fatty substances by creation of extracellular lipases. This gathering incorporates microbe’s species from the Micrococcus, Staphylococcus, Pseudomonas, Alteromonas and Flavobacterium genera. Saccharolytic microorganisms hydrolyze complex carbs. This gathering incorporates microorganism species from the Bacillus, Clostridium, Aeromonas, Pseudomonas and Enterobacter genera [2]. Thermophilic microorganisms can flourish in high temperatures over 50 Celsius, including genera Bacillus, Clostridium, Pediococcus, Streptococcus, and Lactobacillus. Thermoduric microbes, including spores, can endure sanitization.

Microbes that fill in chilly temperatures under 5 Celsius are called psychotropic and incorporate microorganisms species from numerous genera including Alcaligenes, Serratia, Leuconostoc, Carnobacterium, Brochothrix, Listeria and Yersinia. Halotolerant microorganisms can endure high salt fixations more prominent than 10%. This incorporates a few animal groups from Vibrio and Corynebacterium. Aciduric microscopic organisms make due at low pH. Osmophilic microbes, while less osmophilic than yeasts and molds, can endure a generally higher osmotic climate. Aerobes require oxygen, while anaerobes are hindered by it. Facultative anaerobes can develop with and without oxygen [3]. A few microbes can deliver gases during digestion of supplements, others produce sludge by combining polysaccharides. Spore creating microscopic organisms are additionally partitioned into subgroups of high-impact, anaerobic, level acrid, thermophilic and sulfide-delivering. Coliforms, including fecal coliforms, (for example, E. coli) are utilized as a proportion of disinfection. Enteric microbes can cause gastrointestinal disease and might be remembered for this gathering.

Food safety

Food handling is a significant focal point of food microbiology. Various specialists of sickness and microbes are promptly communicated by means of food which incorporates microscopic organisms and infections. Microbial poisons are likewise potential foreign substances of food; however, microorganisms and their items can likewise be utilized to battle these pathogenic organisms. Probiotic microbes, including those that produce bacteriocins can execute and hinder microorganisms. On the other hand, cleansed bacteriocins, for example, nisin can be added straightforwardly to food items [4]. At long last, bacteriophages, infections that just taint microorganisms can be utilized to eliminate bacterial pathogens. Thorough readiness of food, including appropriate cooking, takes out most microbes and infections. Be that as it may, poisons created by toxins may not be obligated to change to non-harmful structures by warming or preparing the sullied food because of other wellbeing conditions.


Maturation is one of the techniques to protect food and modify its quality. Yeast, particularly Saccharomyces cerevisiae, is utilized to raise bread, brew lager and make wine [3,4].Certain microscopic organisms, including lactic corrosive microbes, are utilized to make yogurt, cheddar, hot sauce, pickles, aged frankfurters and dishes, for example, kimchi. A typical impact of these maturations is that the food item is less affable to different microorganisms, including microbes and decay causing microorganisms, in this way broadening the food's timeframe of realistic usability. Some cheddar assortments additionally expect molds to mature and build up their trademark flavors.

Food testing

To guarantee wellbeing of food items, microbiological tests, for example, testing for microorganisms and decay life forms are required. This way the danger of defilement under typical use conditions can be analyzed and food contamination flare-ups can be forestalled. Testing of food items and fixings is significant along the entire store network as potential imperfections of items can happen at each phase of creation [5]. Aside from distinguishing decay, microbiological tests can likewise decide germ content; recognize yeasts and molds, and Salmonella. For Salmonella, researchers are likewise creating quick and versatile advances fit for recognizing remarkable variations of Salmonella [6]. Polymerase Chain Reaction (PCR) is a fast and reasonable strategy to create quantities of duplicates of a DNA piece at a particular band ("PCR (Polymerase Chain Reaction)," 2008). Thus, researchers are utilizing PCR to recognize various types of infections or microscopic organisms, for example, HIV and Bacillus anthracis dependent on their remarkable DNA designs [7]. Different units are economically accessible to help in food microbe nucleic acids extraction, PCR location, and separation [8]. The identification of bacterial strands in food items is vital to everybody on the planet, for it forestalls the event of food borne disease. Consequently, PCR is perceived as a DNA indicator to intensify and follow the presence of pathogenic strands in various prepared food.

Discussion and Conclusion

Food Microbiology is imperative to ensure our food sources are protected to burned-through. The food is a possible hotspot for microorganisms to develop and duplicate. They can ruin the food and more regrettable make somebody debilitated or kick the bucket since certain microbes can create poisons and endotoxins. The FDA and FSMA have severe rules for food producers to follow and food microbiology assumes a huge part to conform to their necessities. From sourcing out food fixings, during the in-measure and the final result; just as the cleaning and sterilization of offices are all include food microbiology. Food borne illnesses of microbial starting point. Microbial food decay, Advantageous employments of microorganisms in food, Control of microbial development in food varieties, Annihilation of organisms in food sources, Microbial food maturation, Probiotic microorganisms, Administrative perspectives to guarantee customers identified with Microbial risks in food.


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