The second possibility was tentatively discarded because low to moderate chitosan concentrations of chitosan produced an increase of the acidification rate of the medium and only high concentrations of the polymer; already producing the cell disruption resulted in a decrease of the acidification rate of the medium.
As shown before, impairment of decreased acidification in lysosomes and proteolytic degradation could affect exocytosis and secretion processes by the cells.
Furthermore, we know from previous studies that the rate of indirect transmission can be decreased by acidification of the drinking water [ 8- 10].
Ocean acidification may also reduce the ability of corals to calcify as normal; a recent study of corals from the Great Barrier Reef attributes a 14.2% decrease in calcification since 1990 to a combination of acidification and warming [14].
This additional degree of acidification caused a significant decrease in MFCV during cycling immediately after the rest period.
For all initial conditions investigated, Lb. plantarum LPCO10 was able to dominate over the natural population of lactic acid bacteria and led to a faster decrease of pH and a faster acidification than the spontaneous process during the first 25 days after brining.
The measurements in cells indicating IMM hyperpolarization, mitochondrial matrix acidification and decrease of respiration leave no doubt that, similarly to NIG, SAL reaches the mitochondria within a few seconds upon addition.
The authors proposed that age-induced mitochondrial dysfunction is a result of decreased vacuolar acidification in aging mother cells, and the regeneration of vacuolar acidification in budding daughter cells, is coincidental with rejuvenation of lifespan.
Indeed, using a self-quenched DQ-ovalbumin particle system, we confirmed that the decreased acidification of lysosomes of CHM patients significantly affected proteolytic abilities of the monocytes [25], [26].
However, NHE3 activity decreases with acidification of the apical solution and is inactive by pH 5.5 due to the unfavourable transmembrane pH gradient [12].
