Molar Growth Yields of Certain Lactic Acid Bacteria as Influenced by Autolysis
AUTOR(ES)
Moustafa, Hassan H.
RESUMO
Molar growth yields determined from batch cultures of Streptococcus diacetilactis and S. faecalis were appreciably greater at the peaks of maximal growth than after continued incubation and considerable autolysis. The higher molar growth yields were about equal to those determined in a continuous culture. Autolysis during logarithmic growth was minimal. The average Y value for adenosine triphosphate (ATP), determined by using limiting concentrations of glucose, galactose, lactose, and maltose for growing S. diacetilactis and limiting concentrations of glucose for growing S. lactis, S. cremoris, and S. faecalis, was 17.0. This is close to the Y (arginine) value of 17.8 determined with S. faecalis, but 62% greater than the generally accepted value of 10.5. Data are presented indicating that the often-used Y (ATP) value of 10.5 is erroneously low.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=252261Documentos Relacionados
- Growth Factors for Bacteria: X. Additional Factors Required by Certain Lactic Acid Bacteria 1
- Freon 11 Extraction of Volatile Metabolites Formed by Certain Lactic Acid Bacteria
- THE PROTEOLYTIC ACTION OF CERTAIN LACTIC ACID BACTERIA1
- Effect of Citric Acid Concentration on the Formation of Diacetyl by Certain Lactic Acid Bacteria
- SOME ADDITIONAL NUTRITIONAL REQUIREMENTS OF CERTAIN LACTIC ACID BACTERIA1
