土臭素，一种从放线菌中分离出的具有泥土气味的物质。
Geosmin, an earthly-smelling substance isolated from actinomycetes.
作者信息
Gerber N N, Lechevalier H A
出版信息
Appl Microbiol. 1965 Nov;13(6):935-8. doi: 10.1128/am.13.6.935-938.1965.
Abstract
Geosmin, an earthy-smelling substance, has been isolated from several actinomycetes. Production of 1 mg per liter of whole broth was obtained from Streptomyces griseus LP-16. After preliminary separations, pure geosmin was isolated in milligram amounts by gas chromatography. Geosmin is a neutral oil, with an approximate boiling point of 270 C, which contains carbon and hydrogen, but no nitrogen. It undergoes a reaction with acid to give odorless argosmin, a neutral oil, with an approximate boiling point of 230 C, which contains only carbon and hydrogen. Specific rotation and ultraviolet- and infrared-absorbtion spectra were determined for both.
摘要
土臭素是一种有泥土气味的物质，已从几种放线菌中分离出来。灰色链霉菌LP - 16每升全培养液可产生1毫克土臭素。经过初步分离后，通过气相色谱法以毫克量分离出纯土臭素。土臭素是一种中性油，沸点约为270℃，含有碳和氢，但不含氮。它与酸反应生成无臭的阿戈斯敏，一种中性油，沸点约为230℃，只含碳和氢。测定了两者的比旋度以及紫外和红外吸收光谱。
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