Zobrazeno 1 - 10
of 12
pro vyhledávání: '"J. Raymond Helbert"'
Publikováno v:
Journal of the American Society of Brewing Chemists. 38:142-145
A rapid method using membrane filtration and microwave drying was developed for measuring yeast dry weight concentration. It permits the determination of yeast dry weight in about 0.5 hr and has th...
Autor:
J. Raymond Helbert
Publikováno v:
Journal of the American Society of Brewing Chemists. 35:137-140
Autor:
Michael C. Barney, J. Raymond Helbert
Publikováno v:
Journal of the American Society of Brewing Chemists. 34:61-64
Lyophilization was compared with slant culturing and with storage under oil as a means of preserving Saccharomyces uvarum. Several types of suspending media were tested, and horse serum, the glucos...
Publikováno v:
Journal of the American Society of Brewing Chemists. 35:35-40
The formation of total volatiles and yeast growth were inversely related to the CO2 counterpressure applied during 100-liter fermentations. However, the rate of fermentation was relatively unaffect...
Autor:
J. Raymond Helbert, E. J. Kot
Publikováno v:
Journal of the American Society of Brewing Chemists. 35:25-28
Wallerstein Laboratories Nutrient (WLN) agar has been used for differentiating normal colonies of Saccharomyces uvarum from mutant colonies and for subdividing the latter into petites and verdants....
Autor:
J. Raymond Helbert, Joseph T. Hoff
Publikováno v:
Proceedings. Annual meeting - American Society of Brewing Chemists. 33:43-46
Autor:
J. Raymond Helbert, James F. Rice
Publikováno v:
Proceedings. Annual meeting - American Society of Brewing Chemists. 31:11-17
Autor:
Mario A. Marini, J. Raymond Helbert
Publikováno v:
Biochemistry. 2:1101-1106
Publikováno v:
The Journal of Experimental Medicine
The preparation of large quantities of a stable, stroma-free hemoglobin solution without coagulant activity is described. Following infusion of this solution into phlebotomized dogs, there is no methemoglobin formation, no adverse effects on vital si
Autor:
J. Raymond Helbert
Publikováno v:
Journal of the American Society of Brewing Chemists. 36:66-68