نتایج جستجو برای: lactic acid
تعداد نتایج: 750414 فیلتر نتایج به سال:
conclusions it was found that the isolated bacteria produced biosurfactants that had a great potential for different industries. results the 3 isolates from cheese, yoghurt and silage were effective against isolated e.coli and could produce biosurfactants. phylogenic relationships of the 3 potential candidates were determined comparing the 16sr dna gene sequences, they were found to be as 3 iso...
BACKGROUND The demand for lactic acid has been increasing considerably because of its use as a monomer for the synthesis of polylactic acid (PLA), which is a promising and environment-friendly alternative to plastics derived from petrochemicals. Optically pure L-lactic acid is essential for polymerization of PLA. The high fermentation cost of L-lactic acid is another limitation for PLA polymers...
Brine fermentation by osmophilic lactic acid bacteria and yeasts for long periods of time is essential to produce a good quality of shoyu (Japanese fermented soy sauce). It is well known that lactic acid fermentation by osmophilic lactic acid bacteria results in the depression of alcoholic fermentation by osmophilic yeasts, but the nature of the interaction between osmophilic lactic acid bacter...
For Iranian fermented cheese processing and ripening, different lactic acid bacteria (LAB) that affect on the physicochemical properties and hence the organoleptic characteristics of the cheese is used. Determination of physicochemical changes of cheese, particularly, organic acids is of importance. In this study five cheese formulas with five different group of cheese starters were processed a...
An automatic reaction rate method is described for the determination of lactic acid in blood. The L ( + ) -lactic acid is selectively oxidized in the presence of lactic dehydrogenaseand diphosphopyridinenucleotide to form an absorbing species. The time required for the formation of a fixed amount of DANH is measuredautomatically and related directly to the lactic acid concentration. The method ...
A characteristic feature of tumors is high production of lactic acid due to enhanced glycolysis. Here, we show a positive correlation between lactate serum levels and tumor burden in cancer patients and examine the influence of lactic acid on immune functions in vitro. Lactic acid suppressed the proliferation and cytokine production of human cytotoxic T lymphocytes (CTLs) up to 95% and led to a...
An annotated selection of World Wide Web sites relevant to the topics in microbial biotechnology Lactobacillales (lactic acid bacteria):Wikipedia This page on the lactic acid group of bacteria is heavy on taxonomy. This webpage describes the major taxonomic and metabolic features of lactic acid bacteria. Twelve reasons to know about lactic acid bacteria Lactic acid bacteria are important in foo...
Lactic acid is one of the top 30 potential building-block chemicals from biomass, of which the most extensive use is in the polymerization of lactic acid to poly-lactic-acid (PLA). To reduce the cost of PLA, the search for cheap raw materials and low-cost process for lactic acid production is highly desired. In this study, the final titer of produced L-lactic acid reached a concentration of 185...
Reprogramming of glucose metabolism in tumor cells is referred to as the Warburg effect and results in increased lactic acid secretion into the tumor microenvironment. We have previously shown that lactic acid has important roles as a pro-inflammatory and immunosuppressive mediator and promotes tumor progression. In this study, we examined the relationship between the lactic acid concentration ...
Introduction: The increasing use of industrial dairy products instead of traditional might resulted in elimination of probiotic bacteria. The purpose of this study was isolation and biochemical identification of potentially Probiotic lactic acid bacteria isolated from traditional yogurt produced from milk of goat, cattle and sheep in Yazd province. Methods: 96 yogurt samples ,33 ...
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