acid-sensitive

Thus, the acid level remains low and the E. coli remain acid-sensitive.

The essential function of haptocorrin is protection of the acid-sensitive vitamin B12 while it moves through the stomach.

However, the sulfur dioxide that is generated as a side product may cause side reactions with acid-sensitive substrates.

Excellent yields are obtained from a variety of aldehydes within a few minutes at room temperature, as in the example above involving an acid-sensitive aldehyde.

The asparagine substitution prevents deamidization of the acid-sensitive glycine at acidic pH.

Peracids also react with arenes and cumulenes, but cannot be employed with substrates containing acid-sensitive functionality.

For acid-sensitive facades such as concrete, strongly alkaline cleaners are used such as sodium hydroxide and thickeners.

Replacing the acid-sensitive asparagine at position 21 in the A-chain by glycine is needed to avoid deamination and dimerization of the arginine residue.

The reaction conditions allow oxidation of acid-sensitive compounds, which might decompose under the acidic conditions of a traditional method such as Jones oxidation.

DAST is more selective in fluorinations of alcohols and promotes fewer rearrangements and eliminations in acid-sensitive substrates.

Yong Qiang Tu's synthesis of the Alzheimer's disease medication galanthamine likewise used this reaction in the presence of an acid-sensitive acetal group.

Unfortunately, the acid-sensitive micro-organisms that cause sexually transmitted diseases - including syphilis, gonorrhea, genital herpes and AIDS - take advantage of this window of opportunity.

For example, in Thompson & Heathcock's synthesis of the sesquiterpene isovelleral, the final step uses the Swern protocol, avoiding rearrangement of the acid-sensitive cyclopropanemethanol moiety.

TASK-1 is a two-pore domain K channel TWIK-related acid-sensitive K (TASK).

Investigators are now focusing on ponds of 'decalcified' sandstones, including Pinkworthy on Exmoor and Woolmer in Hampshire, where the acid-sensitive and rare natterjack toad has disappeared.

In those first 2 1/2 years, Dr. Bradt reported, acid-sensitive organisms like mayflies, clams, snails, dragonflies, caddis flies, zooplankton and diatoms, or microscopic algae, all re-established themselves.

Indeed, Warth (1989) has reported that the uptake rate of propionic acid by diffusion in Z. bailii is much lower than in other acid-sensitive yeasts (e.g. Saccharomyces cerevisiae).

Straightforward acidic conditions can be used if acid-sensitive functional groups are not an issue; sulfuric acid can be used; softer acids can be used with a tradeoff of longer reaction times.

In a specialized case of acid stability, the NAPase protein from Nocardiopsis alba was shown to have relocated acid-sensitive salt bridges away from regions that play an important role in the unfolding process.