FLASK FOR FAT DETERMINATION.

Dialysis Flask for Concentrated Culture of Microorganisms.

Gerhardt, Philipp (The University of Michigan, Ann Arbor), and D. M. Gallup. Dialysis flask for concentrated culture of microorganisms. J. Bacteriol 86:919-929. 1963.-A twin-chambered dialysis flask was designed with a supported membrane clamped between a reservoir of medium in the bottom and a small volume of culture above, the unit being mounted on a shaking machine to provide aeration and ag...

Improved culture flask for obligate anaerobes.

An improved flask system for the growth of extremely oxygen-sensitive bacteria in liquid culture is described. The improvement described utilizes an all-glass, neoprene-stoppered flask designed for growth of 50- to 1,000-ml cultures of bacteria with continuous gassing.

Automated Determination of Total Fat, Saturated Fat, Monounsaturated Fat and Trans Fat Content in Food Samples

Determination of total fat, saturated fat, monounsaturated fat and trans fat content in food samples is necessary for complying with applicable food labeling requirements. A typical procedure for saponifi cation of the sample involves refl uxing with sodium methoxide in methanol, followed by a second refl ux with boron trifl uoride in order to esterify the free fatty acids. Prior to injection i...

Rapid method for the determination of fat in feces.

Study of fat absorption in a patient requires the determination of the fat content of feces. Quantitative chemical methods available for such determinations are too laborious to be practical for routine analyses. Estimation of the fat content of feces by microscopic examination, practised by many clinicians, is unreliable; this can be demonstrated by comparing the results of microscopic determi...

Self-contained culture flask system.