Lactic acid fermentation

Microbial Fermentation

1. Lactic acid Fermentation Dr. P. Suganya Assistant Professor Department of Biotechnology Sri Kaliswari College (Autonomous) Sivakasi

2. Lactic acid fermentation  is a metabolic process by which  glucose  or other  six-carbon sugars  (also,  disaccharides  of six-carbon sugars, e.g.  sucrose  or  lactose ) are converted into cellular energy and the metabolite  lactate , which is lactic acid in solution. It is an  anaerobic   fermentation  reaction that occurs in some bacteria and  animal cells , such as  muscle cells

3. Lactate dehydrogenase   catalyzes the interconversion of  pyruvate  and  lactate  with concomitant interconversion of NADH and  NAD + . In  homolactic fermentation , one molecule of glucose is ultimately converted to two molecules of lactic acid.  Heterolactic fermentation , in contrast, yields  carbon dioxide  and  ethanol  in addition to lactic acid, in a process called the  phosphoketolase  pathway

4. Histroy the French chemist  Joseph Louis Gay-Lussac , who was especially interested in fermentation processes , and he passed this fascination to one of his best students,  Justus von Liebig . With a difference of some years, each of them described, together with colleagues, the   chemical structure  of the lactic acid  molecule  as we know it today. They had a purely chemical understanding of the fermentation process, which means that you can't see it using a  microscope ,    In 1857, the French chemist  Louis Pasteur  first described  lactic acid  as the product of a microbial fermentation

5. Types of lactic acid bacteria 1. Homofermentative process 2. Heterofermentative proces

6. Lactic acid Fermentation- Microbial

7. Ex KANJI

8. Probiotic beverages