Kvasny Prumysl, 1959 (vol. 5), issue 3
Determination of aldehydes, esters and higher alcohols in products of rectification of ethyl alcohol.Peer-reviewed article
V. P. GRJAZNOV
Kvasny Prum. 1959; 5(3): 58-61 | DOI: 10.18832/kp1959006 
The results of chromatographic analysis of raw spirit produced from corn, potatoes and molasses indicate, that if obtained from raw materials of average quality it contains the following esters: methyl acetate, ethyl acetate and isoamyl acetate. Further it contains the following alcohols: methyl alcohol, ethyl alcohol, propyl alcohol, isobutyl alcohol, isoamyl alcohol. No other esters or monovalent alcohols have been traced. To determinate exactly the properties and identity of admixtures originating during the rectification process in double column, continuous rectifying installations, samples were taken from various parts of an operating installation...
Some technological problems of manufacturing high quality lactic acid.Peer-reviewed article
K. POCHOBRADSKÝ
Kvasny Prum. 1959; 5(3): 67-71 | DOI: 10.18832/kp1959007
From numerous technological problems arising in plants manufacturing high quality lactic acid designed for food industries, the complexometric method has been studied in its applications to the control of fermenting process and to the regulation of crystallization yield. The effect of epuration of mash has been verified by experiments as also the application of rotating vacuum filters to eliminate some difficult and labour-consuming operations. Together with molasses some fo reign matters - very undesirable from organoleptic point of view - are brought into the manufacturing process and their presence necessitates some kind of thorough affining. This...