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Department of Dairy Husbandry, University of Missouri, Columbia, Missouri
ABSTRACT
INTRODUCTION
The limited supply of normal skim milk suitable for fermented milk manufacture, especially in the large centers of population, together with the steadily growing demand for fermented milks, has caused the plant operators to search for a substitute for normal skim milk.
This paper presents the results of a study of the influence of the manufacturing procedure and of the quality of starter used, on the fermented milk made from reconstructed skim milk. The processes studied are those that are subject to considerable variations between plants, or in the same plant.
REVIEW OF LITERATURE
Burke (1) defined the qualities of a good grade of Commercial Buttermilk.
Larsen and White (2) found that a good quality starter can be made by using reconstructed skim milk as a substitute for normal skim milk. They further showed the danger of using too much powder in the manufacture of the reconstructed milk.
Dahle and Palmer (3) in an investigation of the properties of reconstructed milks made a milk which gave a slightly lower soluble protein content, a slightly lower buffer action at low concentrations of alkali and acid, had a slightly higher viscosity than normal milk, but closely resembled normal milk in freezing point, specific gravity, and specific conductivity.
This experimental work was submitted by F. F. Welch in fulfillment of the thesis requirement for the degree of Master of Arts in the University of Missouri.
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