In an attempt to investigate the probable roles of lactic starter
flora in the development of fruitiness and slit-openness in Cheddar
cheese, several experimental lots of cheese were made with different
commercial lyophilized starters until the defect could be consistently
duplicated. From many such trials, two cultures, B and C,...
The stability of diacetyl in fermented milk and the removal of
diacetyl from beer were studied. A convenient method for the determination
of diacetyl in beer, established by Owades and Jakovac, was
modified and applied for flavor analyses of dairy products. Through
this method, diacetyl in 12 samples could be...
Increasing interest has been shown in the irradiation sterilization
and irradiation pasteurization of foods, but problems of off-flavors
and odors are still unsolved, especially in the case of dairy products.
From the flavor chemistry point of view, milk lipids are very highly
susceptible to irradiation effects. Therefore, this investigation was...
Acetaldehyde is known to be responsible for the green
or yogurt-like flavor defect of lactic cultures. This study was undertaken
to extend the knowledge of acetaldehyde production and utilization
by microorganisms normally found in mixed-strain butter cultures.
It is anticipated that the resulting information will contribute
to a more thorough...
A method for the assessment of volatile compounds in dairy products
was developed using solvent desorption dynamic headspace sampling. The
method was first applied to assay for diacetyl and acetoin in buttermilk.
Major buttermilk volatiles recovered included diacetyl, acetic acid, and
acetoin. Normalized detector responses were linear over the range...
During the course of ripening, Cheddar cheese frequently develops
a flavor defect described as fruity. Recent work has indicated
that the use of certain starter cultures ultimately results in the
development of the defect as the cheese ages. The flavor compounds
responsible for the defect, however, have not been elaborated....
The unique flavor of high quality Swiss cheese is difficult to
reproduce in commercial market cheese. Swiss cheese flavor has
never been duplicated or thoroughly understood. New techniques and
advances in flavor research have enabled better definition and understanding
of food flavors. Therefore, it was desirable to make a detailed...
Numerous attempts have been made to identify the flavor
compounds in Blue cheese, however, duplication of Blue cheese
flavor has not yet been accomplished. Therefore, it was desirable
to make a qualitative and quantitative investigation of Blue
cheese flavor compounds and to study the effect of certain microorganisms
on Blue...
Numerous investigations have been made on the contribution of
butter cultures to the flavor of cultured cream butter, but production
of uniform cultured cream butter has not been possible in industry.
Therefore, it was desirable to investigate in detail the qualitative
and quantitative chemistry of the flavor of high quality...