25. The Mineral Constituents and Citric Acid Content of Milk

1931 ◽  
Vol 3 (1-2) ◽  
pp. 1-51 ◽  
Author(s):  
L. A. Allen
Keyword(s):  
Citric Acid ◽  
Acid Content ◽  
Marked Effect ◽  
Magnesium Phosphate ◽  
Cow’S Milk ◽  
Cow's Milk ◽  
Calcium Magnesium ◽  
Citric Acid Content ◽  
Mineral Constituents

Though the mineral constituents normally represent less than 1 per cent, of cow's milk their importance in many dairying problems is well realised. For example, the calcium-magnesium-phosphate-citrate balance is a most important factor in connection with coagulation by heat and in the alcohol test, even minute alterations in the balance producing a very marked effect.

scholarly journals Citric acid content of cow's milk

1969 ◽  
Vol 40 (1) ◽  
pp. 32-36
Author(s):  
Kogo YUSA ◽  
Koichi ANDO ◽  
Yasuhiko ONODERA
Keyword(s):  
Citric Acid ◽  
Acid Content ◽  
Cow’S Milk ◽  
Cow's Milk ◽  
Citric Acid Content

Citric acid concentration in subclinical mastitic milk

1981 ◽  
Vol 48 (3) ◽  
pp. 387-392 ◽  
Author(s):  
Masaharu Oshima ◽  
Hiroshi Fuse
Keyword(s):  
Citric Acid ◽  
Acid Concentration ◽  
Acid Content ◽  
Subclinical Mastitis ◽  
Cow’S Milk ◽  
Linear Regression Equation ◽  
Citric Acid Concentration ◽  
Cow's Milk ◽  
Citric Acid Content ◽  
Mastitic Milk

SummaryThe effect of subclinical mastitis on the citric acid concentration of cow's milk was studied by comparing milk from the mastitic quarter with that from a healthy quarter of the same udder. Forty-two pairs of fore-milk from the morning milking of 17 cows were examined and the citric acid content was measured by an automated carboxylic acid analyzer. The citric acid concentration decreased in subclinical mastitic milk and the extent of decrease was proportional to the degree of mastitis as expressed by the quarter difference value in concentration of Na+Cl in mm/1, i.e. the increase in the Na and Cl concentrations in the abnormal milk over that found in normal milk from the same udder. The correlation coefficient between the quarter difference value of Na+Cl and the value for citric acid was –0·77, (d.f. = 46, P <0·001) and a linear regression equation was obtained. The result showed clearly that subclinical mastitis is one of the causes of variation in the citric acid content of cow's milk. The quantitative change in citric acid concentration in subclinical mastitic milk is discussed with reference to the admixture theory for the formation of abnormal milk.

scholarly journals CITRIC ACID CONTENT OF MILK AND MILK PRODUCTS

1921 ◽  
Vol 48 (2) ◽  
pp. 453-461
Author(s):  
G.C. Supplee ◽  
B. Bellis
Keyword(s):  
Citric Acid ◽  
Acid Content ◽  
Milk Products ◽  
Citric Acid Content

scholarly journals EFFECT OF HEAT ON THE CITRIC ACID CONTENT OF MILK

1918 ◽  
Vol 35 (2) ◽  
pp. 313-318
Author(s):  
H.H. Sommer ◽  
E.B. Hart
Keyword(s):  
Citric Acid ◽  
Acid Content ◽  
Citric Acid Content

The composition of milk. Part II: Variation in the percentage of mineral constituents in cow’s milk, and their relationship with the solids not fat and protein content

1927 ◽  
Vol 17 (1) ◽  
pp. 72-93 ◽  
Author(s):  
H. T. Cranfield ◽  
D. G. Griffiths ◽  
E. R. Ling
Keyword(s):  
Standard Deviation ◽  
Phosphoric Acid ◽  
Protein Content ◽  
Ash Content ◽  
Probable Error ◽  
Cow’S Milk ◽  
Frequency Distributions ◽  
Cow's Milk ◽  
Mineral Constituents

1. 670 samples of the mixed milk from 15 herds were analysed, and the average percentages of total ash, soluble ash, insoluble ash, lime and phosphoric acid are given.2. Tables showing frequency distributions are also given, with the standard deviation, mean and probable error of mean for each constituent determined.3. Various correlations of these constituents with solids not fat and protein have been prepared, and these correlations are illustrated by graphs.It is observed that the total ash falls with the solids not fat until low values of solids not fat are reached, when the ash content appears to rise. This variation is confirmed by a curve illustrating the variation in ash content of samples of individual cow’s milk. Soluble ash rises as the solids not fat falls, but the insoluble ash shows a reverse variation. Lime and phosphoric acid both fall with the solids not fat.

Effect of Dietary Magnesium and Fluoride on Citric Acid Content of Chick Bones.

1964 ◽  
Vol 116 (3) ◽  
pp. 622-623 ◽  
Author(s):  
F. D. Griffith ◽  
H. E. Parker ◽  
J. C. Rogler
Keyword(s):  
Citric Acid ◽  
Acid Content ◽  
Dietary Magnesium ◽  
Citric Acid Content

Folic Acid Content of Milk and Milk Substitutes

PEDIATRICS ◽  
1963 ◽  
Vol 32 (3) ◽  
pp. 463-464
Author(s):  
A. LEONARD LUHBY ◽  
JACK M. COOPERMAN
Keyword(s):  
Folic Acid ◽  
Acid Content ◽  
Present Situation ◽  
Cow’S Milk ◽  
Accurate Assessment ◽  
Cow's Milk ◽  
Milk Substitutes

The "folic acid" content of cow's milk, as listed in the report of the Committee on Nutrition (Pediatrics, 31:329, 1963) is probably too low, as pointed out by Drs. Naiman and Oski. We would agree that these figures should be withdrawn until a more accurate assessment can be made. We are, however, less certain than they appear to be, that the L. casei assay, ascorbate-protected, will provide the information desired, i.e., the true total folate content of foodstuff biologically available to the human. For an understanding of the present situation, it is necessary to review briefly certain pertinent developments in this field.

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