Food microbiology:

Microorganisms are of great significance to foods for the following reasons:
(1) microorganisms can cause spoilage of foods,
(2) microorganisms are used to manufacture a wide variety of food products, and
(3) microbial diseases can be transmitted by foods.

Food spoilage:

Foods can be considered as a medium for microbial growth. Considering the vast array of sources, substances, and methods with which food is produced, practically every kind of microbe is a potential contaminant. Given a chance to grow, microbes will produce changes in appearance, flavour, odour, and other qualities of the food. The changes vary according to the type of food degraded but can be summarized by examining the fates of the major nutrients found in food: proteins, carbohydrates, and fats.

Protein-containing foods, particularly meats, are putrefied by organisms (e.g., Proteus, Pseudomonas, and Clostridium bacteria) that break down the long peptide chains of proteins into amino acids and foul-smelling compounds such as amines, ammonia, and hydrogen sulfide (H2S).

Carbohydrates (sugars and starches) are fermented into acids (e.g., the acetic acid in vinegar), alcohols, and gases, especially carbon dioxide. This process is responsible for the bursting of spoiled chocolate cream candies by yeasts.

Fat-containing foods such as dairy products are spoiled by microbes that break down lipids into fatty acids and glycerol. Rancid milk, which can be caused by bacteria, yeast, or mold, is an example of this process.

Improperly canned foods are also subject to spoilage by bacteria, yeasts, and molds. Bacteria such as Bacillus and Clostridium are of particular significance in the canning industry because of the high level of resistance that their spores possess. One example of microbial spoilage of canned foods is “sulfide spoilage” caused by C. nigrificans, in which contents are blackened and have the odour of rotten eggs. Another example is called “flat sour,” in which the spoiled product has an abnormal odour, a cloudy appearance, and a sour taste owing to its lowered pH. Putrefaction caused by C. sporogenes may cause a can to swell and burst, releasing its partially digested contents and a putrid odour.

The Journal publishes papers/articles of or related to nutrition, diet, nutrition disorders and metabolism. It is of immense pleasure to invite Researchers to this inaugural issue for “Insights in Nutrition & Metabolism”

The Journal Considers Editorial, letter, case reports, short communications, original and review articles from leading scientists and scholars around the world in all areas of food, nutrition, biochemistry, physiology, pathology and medicine.

Authors can directly submit the article through online link: https://www.scholarscentral.org/submissions/insights-nutrition-metabolism.html or as an attachment to this E-mail: metnutri@nutritionres.com

The articles once published can be accessed freely.

Media Contact
Mercedes Rose
Journal Manager
Insights in Nutrition and Metabolism
Email: metnutri@nutritionres.com
WhatsApp: +1-947-333-4405