. Plant physiology. Plant physiology. S. pastorianus I. S. pastorianus II. S. pastorianus S. elUpsoideus I. Pig. 5. elUpsoideus II. Bottom-Fermentation Yeasts. -Giant colonies of different yeasts. {After P. Lindner.) aldehyde, by a special enzyme, carboxylase, the reaction being represented by the following equation: Carbon Pyrotartaric acid dioxide Acetic aldehyde CH3COCOOH = CO2 H- CH3COH. The acetic aldehyde thus formed is reduced to ethyl alcohol. Kostychev^ re- ports that pyrotartaric add is apparently one of the intermediate products in the breaking down of glucose. Zaliesskii
. Plant physiology. Plant physiology. S. pastorianus I. S. pastorianus II. S. pastorianus S. elUpsoideus I. Pig. 5. elUpsoideus II. Bottom-Fermentation Yeasts. -Giant colonies of different yeasts. {After P. Lindner.) aldehyde, by a special enzyme, carboxylase, the reaction being represented by the following equation: Carbon Pyrotartaric acid dioxide Acetic aldehyde CH3COCOOH = CO2 H- CH3COH. The acetic aldehyde thus formed is reduced to ethyl alcohol. Kostychev^ re- ports that pyrotartaric add is apparently one of the intermediate products in the breaking down of glucose. Zaliesskii' found the enzyme carboxylase in higher plants. Reductase is plentiful in yeast, and this enzyme has been shown to play an â Neuberg, C, and Karczag, L., Ueber zuckerfreie Hefegirungen. IV. Carboxylase, ein neues'Enzym der Hefe. Biocbem. Zeitsch. 36: 68-75. 1911. Idem, same title. F. Zur Kenntnis der Carboxylase Ihtd. 36: 76-81. 1911. Neuberg, Carl, and Kerb, J., Entsteht bei Zuckerfreien Hefegftningen /Ethyl- alkohol? Zeitsch. Garungsphysiol. 1: 114-120. 1912. 2 Kostytchew, S., Ueber Alkoholgarung. (I Mitteilung.) Ueber die Bildung von Aceteldehyd bei der nlkoholisohen Zuckergftrung. Zeitaoh. physiol. Chem. 79: 130-14S. I9I2. Kostyschew, S., and Hub- benet, E. (11 Mitteilung.) Ueber Bildung von Aethylalkohol aus Acetaldyhyd durch lebende und getOtete Hefe. Ibid. 79: 359-374. 191a. «Zaleski, W., Ueber die Verbreitung der Carboxylase in den Pflanzen. Her. Deutsch. Hot. Ges. 31: 349-353. 1913. ⢠This and the next following paragraph are not in the German edition and are translated from the 7th Russian edition.â Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Palladin, Vladimir Ivanovich, 1859-1922; Livingston, Burton Edward, 1875-; Hopping, Aleita, 1890-. Philadelphia, P. Blakiston's Son & Co
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