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THE RELATIVE SWEETNESSES OF CERTAIN SUGARS, MIXTURES OF SUGARS, AND GLYCEROL |
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Canadian Journal of Research,
Volume 22e,
Issue 3,
1944,
Page 45-63
A. T. Cameron,
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摘要:
The relative sweetnesses of the sugars glucose and lactose and of the alcohol glycerol, as compared with sucrose, vary with concentration.The relative sweetness of glucose, or lactose, or glycerol, compared with either of the other two, does not change with concentration, within the limits of the experimental method used.The following have been found to be equally sweet:(i) 2.0% sucrose and 3.8% glucose; 10.0% sucrose and 14.7% glucose; 20.0% sucrose and 25.0% glucose.(ii) 2.0% sucrose and 6.5% lactose; 5.0% sucrose and 14.9% lactose; 8.0% sucrose and 21.7% lactose.(iii) 2.25% sucrose and 4.0% glycerol; 5.5% sucrose and 8.0% glycerol; 8.9% sucrose and 12.0% glycerol.A method is described for calculating the sweetness of a mixture of sugars of known composition in terms of that of a specific concentration of sucrose or of glucose. The sweetness of each sugar is expressed in terms of that one of them for which the rate of change of the ratio of sweetness to concentration is least altered with changing concentration. The arithmetical sum of the values so calculated, referred to the appropriate curve of relative sweetness, gives the corresponding value of sucrose or glucose.The accuracy of this method is demonstrated.
ISSN:1923-4287
DOI:10.1139/cjr44e-005
出版商:NRC Research Press
年代:1944
数据来源: NRC
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THE PHARMACOLOGICAL ACTIONS OF CAPAURINE |
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Canadian Journal of Research,
Volume 22e,
Issue 3,
1944,
Page 64-66
A. K. Reynolds,
R. A. Waud,
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PDF (165KB)
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摘要:
The pharmacological actions of a new alkaloid, capaurine, and its O-methyl ether derivative have been studied. Capaurine was isolated fromCorydalis aurea, a member of the plant family Fumariaceae, which is indigenous to Canada.The base produces paralysis in frogs and convulsions in mice and rabbits, both effects being of central origin. The heart is depressed as is the smooth muscle of the intestine and uterus. Capaurine O-methyl ether is a convulsant drug exhibiting actions on the heart and smooth muscle quite similar to those of the alkaloid itself.
ISSN:1923-4287
DOI:10.1139/cjr44e-006
出版商:NRC Research Press
年代:1944
数据来源: NRC
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