However, acetic acid causes O2 - to accumulate in stationary phase cells, because buffering SC medium to a higher pH, which extends CLS, reduces levels of O2 - [ 18].
There is a plausible biological mechanism that acid- suppression increases the risk of developing C. difficile colonization, because host immunity is compromised by a higher pH environment in the stomach [ 38].
Anaerobes grow preferably at a higher pH.
CO3 2− is produced from HCO3 − at a high pH (i.e., pH 11.0) because the pK a for HCO3 − dissociation is very high (10.3) (Lowry et al. 1951).
Compared to acid pretreatments, a high pH condition could be more preferable because it requires lower temperatures [ 29] and is more efficient in removing lignin-like materials [ 30].
No alkalinity-producing agents were added to control the pH level during fermentation because, in most practical circumstances, the high cost of alkalis needed to maintain a high pH value during acidogenic fermentation would be prohibitive.
Because a pH gradient exists in the gastrointestinal tract, chitosan-based formulations in response to specific pH conditions, such as the low pH in the stomach and a high pH in the intestine, have been developed as a general strategy for disease diagnosis and therapy.
Degradation in the level of pH is an important factor in increasing the quality of fertilizer because at higher pH nitrogen is lost in the form of volatile NH3 (Nath and Singh 2009).
Vitamin A -- Beta carotene forms vitamin A in the body, but beta carotene itself is not absorbed from the gastrointestinal tract very well in the presence of omeprazole (a PPI drug) because of the higher pH.
The switch feature has been hypothesized to be the result of uncompensated negative charge at the bis-His-ligated hemes that has been supported by the apparent increase in the prominence of the switch with increased pH, because at higher pH values there are fewer protons present to counteract this buildup of negative charge.
