Nanostructured poly(l-lactic acid)–poly(ethylene glycol)–poly(l-lactic acid) triblock copolymers and their CO2/O2 permselectivity

In vitro degradation of glycine/DL-lactic acid copolymers.

The in vitro degradation of glycine-DL-lactic acid copolymers was studied as a function of the composition. These polydepsipeptides were prepared by ring-opening copolymerization of 6-methyl-2,5-morpholinedione and DL-lactide. The degradation of discs of the copolymers was performed in a phosphate buffer at pH 7.4 and 37 degrees C. The decrease in molecular weight and weight was determined unti...

Lactic acid bacteria: their applications in foods

Lactic acid bacteria (LAB) play an important role in food, agricultural, and clinical applications. The general description of the bacteria included in the group is gram-positive, nonsporing, nonrespiring cocci or rods, which produce lactic acid as the major end product during the fermentation of carbohydrates.1 The common agreement is that there is a core group consisting of four genera; Lacto...

D(-)-lactic acid-producing probiotics, D(-)-lactic acidosis and infants.

There is mounting evidence that ingestion of selected probiotics can modify disease morbidity for specific conditions affecting humans, and there is growing interest in the amelioration or prevention of disease with probiotics. Modulation in gene expression of the cellular elements of the intestinal mucosa and interbacterial interactions are leading theories as to the mechanism whereby probioti...

Lactic Acid Fermentation, Muscle

Lactic Acid, Microbially Produced

Glossary batch process A technique in which all nutrients for the microorganisms are added to the bioreactor only once and the products are separated in their entirety when the fermentation process is completed. bioreactor or fermenter The culture vessel or system used for growing microorganisms and producing microbial metabolic products such as lactic acid. continuous process A technique in wh...