Clxii. the Equation of Alcoholic Fermentation. by Arthur Hiarden and Francis
نویسنده
چکیده
THE fact that the hexosediphosphate which is produced by the action of yeast preparations on a mixture of a hexose and a phosphate is accompanied by a monophosphate renders it necessary to reconsider the equation originally proposed by Harden and Young [1906] to represent the reaction: 2C6HJ206 + 2Na2HPO4= C6H1004(PO4Na2)2 + 2CO2 + 2C2H60 + 2H20. This equation was originally established on the basis of the ratio of carbon dioxide evolved to the phosphate which went into organic combination as experimentally observed and of the composition of the hexosephosphate produced. It was further confirmed by experiments in which the ratio was determined of the sugar added in presence of excess of phosphate to the carbon dioxide produced. It is however obvious that if some of the phosphate and some of the sugar form a compound of a different composition (a hexosemonophosphate) experiments of the kind just indicated are not sufficient to afford a rigorous proof of the equation. It was therefore decided to make a more detailed study of the reaction and to endeavour to determine the exact proportions of the.hexosemonophosphate and hexosediphosphate produced, as well as the amount of carbon dioxide evolved.
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تاریخ انتشار 2005