CH_{2}OH ^| |v COOH | phosphopyruvic acid COPO_{3}H_{2} (enol-) || CH_2 ADP --> || COOH +------+ | +---+ |CO_{2}| + CH_3CHO <-------- C=O + |ATP| +------+ acetaldehyde | +---+ carbon | CH_{3} dioxide | + dihydro-coenzyme pyruvic acid | v +----------------+ | CH_{3}CH_{2}OH | + coenzyme +----------------+ ethyl alcohol [Illustration: Figure 13.--SURVEY OF ALCOHOLIC FERMENTATION, 1951. The "well-known scheme of alcoholic fermentation" according to Albert Jan Kluyver (1888-1956), presented before the Society of Chemical Industry in the Royal Institution, March 7, 1951. In _Chemistry & Industry_, 1952, page 136 ff., Kluyver restates that "... the fermentation of one molecule of glucose is indissolubly connected with the formation of two molecules of adenosine triphosphate (ATP) out of two molecules of adenosine diphosphate (ADP)."]