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Lactic acid is used as a food preservative, curing agent, and flavoring agent. [51] It is an ingredient in processed foods and is used as a decontaminant during meat processing. [52] Lactic acid is produced commercially by fermentation of carbohydrates such as glucose, sucrose, or lactose, or by chemical synthesis. [51]
Many fast-food chains use fillers and artificial flavors to create what you think is cheese. ... and lactic acid. ... but other products, for example, its Cheeseburger and Backyard Bacon Ranch ...
Additives are used for many purposes but the main uses are: Acids Food acids are added to make flavors "sharper", and also act as preservatives and antioxidants. Common food acids include vinegar, citric acid, tartaric acid, malic acid, folic acid, fumaric acid, and lactic acid.
The lactic acid produced by the bacterium curdles the milk, which then separates to form curds that are used to produce cheese. [11] Other uses that have been reported for this bacterium include the production of pickled vegetables , beer or wine, some breads, and other fermented foodstuffs like soymilk kefir , buttermilk, and others. [ 12 ]
Lactic acid producing bacteria also act as a protective barrier against possible pathogens such as bacterial vaginosis and vaginitis species, different fungi, and protozoa through the production of hydrogen peroxide, and antibacterial compounds. It is unclear if further use of lactic acid, through fermentation, in the vaginal canal is present [6]
Fermented sausage harbor a variety of lactic acid-producing bacteria and, depending on the style, occasionally fungi. Fermentation not only decreases the pH by lactic acid production, but also produces a variety of flavor compounds through lipolysis. The texture is changed by proteolysis and a reduction in water content. [4]
Leuconostoc lactis is a Gram-positive, non-motile, lactic acid bacterium that thrive best in acidic conditions and moderate temperatures. [2] [1] L. lactis is capable of acidifying culture media through lactose fermentation to pH levels of 4.0-4.1, and milk to levels below 5.4. [4]
In lactic acid fermentation, each pyruvate molecule is directly reduced by NADH. The only byproduct from this type of fermentation is lactate . Lactic acid fermentation is used by human muscle cells as a means of generating ATP during strenuous exercise where oxygen consumption is higher than the supplied oxygen.