lactis in the cell retention continuous culture was studied. The continuous cultivations were carried out in a continuous flow stirred bioreactor combined in a recycle loop with an ultrafiltration module retaining all biomass and allowing the continuous removal of metabolites, including lactic acid, as...
LAB metabolizes carbohydrates into different useful compounds (mainly lactic acid) through a process known as fermentation, which is defined as sugar metabolism in which energy is derived from the partial oxidation of an organic compound (Hayek and Ibrahim, 2013). In addition, this bacteria group ...
Osteoporosis is a state of bone weakening caused by an imbalance in osteoblast and osteoclast activity. In this study, the anti-osteoporotic effects of three proteins fermented by lactic acid bacteria (LAB) were assessed. Commercial proteins sodium caseinate (SC), whey protein isolate (WPI), and...
Biocomposites of poly(lactic acid) (PLA) and pectin, which are low-cost organic materials, were prepared using an internal mixing machine in various pectin contents, i.e., 2, 4, 6 and 8% w/w. When pectin was added as a nucleating agent, the mechanical properties of the biocomposites, ...
MMT reinforcement was found to control the drug (Ibuprofen) release rate in phosphate buffer saline solution (pH 7.4). MMT clay is therefore a viable additive for formulating sustained drug delivery systems based on lactic acid grafted chitosan. 展开 ...
Today, L-lactic acid is commercially manufactured predominantly by bacterial fermentation. However, the bacterial process has both nutritional (complex medium) and pH (neutral pH) requirements which increase the cost of the process [1,2]. To improve the economics of the process, use of yeast ...
Lactic acid is the simplest hydroxy acid which has an asymmetric carbon atom and is present in two optically active forms. In humans and other mammals only the l(+)- isomer is present, whereas the d(−)- and l(+)-both enantiomers can synthesized using an appropriate bacterial strains. ...
US6472210 2000年5月26日 2002年10月29日 Bonetec Corporation Glycolic acid-lactic acid copolymer scaffold has utility for tissue engineering, particularly as a scaffold for in vitro and in vivo cell growthHoly CE, Shoichet MS, Davies ... Holy, Chantal E,Shoichet, Molly S,Davies, John E - ...
Lactic acid fermentations using these immobilized cells in a stirred batch or packed bed reactor is not without problems, because of the attrition of the matrix and inability to control pH in the respective cases. The present study reports on the adsorption of L. casei to foam glass beads, ...
Anion exchange resin, IRA 67 was found to have the highest selectivity towards lactic acid compared to other components studied. Fed-batch fermentation of P. acidilactici coupled with lactic acid removal system using IRA 67 resin showed 55.5 and 9.1 times of improvement in maximum viable cell ...