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Action potential activated acetate

Nerve agents inhibit the activity of acetylcholinesterase by attaching to its active sites so that it cannot hydrolyze the neurotransmitter acetylcholine into choline, acetic acid, and regenerated enzyme. Thus, acetylcholine cannot attach to the enzyme, is not hydrolyzed, and continues to produce action potentials until the mechanism is fatigued. The biological effects of the nerve agents result from the excess of acetylcholine. [Pg.1788]

Benzisothiazoles.—Synthesis. A number of 1,2-benzisothiazole-3-acetic acids (128) have been prepared with the aim of studying their potential activity as plant hormones. They were produced, usually in near-quantitative yields, by the action of hydroxylamine on substituted 4-hydroxy-l-thiocoumarins (127) (c/. ref. 56). 5-Chloro-l,2-benzisothiazole-3-acetic acid proved very potent, possessing an activity about three times that of of heteroauxin. ... [Pg.577]

EXTENSIONS AND COMMENTARY This base, a-ET or etryptamine, was a promising antidepressant, explored clinically as the acetate salt by Upjohn under the name of Monase. Its central stimulant activity is probably not due to its monoamineoxidase inhibition activity, but appears to stem from its structural relationship to the indolic psychedelics. It was withdrawn from potential commercial use with the appearance of an unacceptable incidence of a medical condition known as agranulocytosis, but the extra mural research into its action, among the lay population, goes on. [Pg.80]

After sterilization, yeast is added to initiate fermentation. McConnell and Schramm (1995) recommend inoculation with no less than 10% by volume. Moreover, as the pH of honey is naturally low and because it is poorly buffered, the pH of must may drop during fermentation to a point limiting yeast efficiency. pH reduction can result from the synthesis of acetic and succinic acids by the yeast cells (Sroka and Tuszynski, 2007). While a rapid decline in pH inhibits undesirable microbial activity (Sroka and Tuszynski, 2007), it also reduces the dissociation of fatty acids in the wort, potentially slowing yeast metabolic action. For this, addition of a buffer is important to maintain the pH within a range of 3.7-4.0 throughout fermentation (McConnell and Schramm, 1995). Calcium carbonate, potassium carbonate, potassium bicarbonate, and tartaric acid are potential candidates. However, as some of these salts can add a bitter-salty... [Pg.112]


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See also in sourсe #XX -- [ Pg.419 ]




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Acetals activation

Acetate activation

Acetate, active activation

Acetic activated

Acetic activation

Action Activation

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