A method for the estimation of the salt content from the <i>p</i>H value of apple juice, and some comparative analyses of the mineral content of the juice and whole apple

Haynes, Dorothy; Brown, Janet W.

doi:10.1042/bj0220947

Cited by 3 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plagge & Gerhardt (1930) found that in Jonathan apples the pR fell from 3-01 to 2-87 in the first 12 weeks of storage at 36° F., and then rose to 3-18 after 27 weeks' storage. Data given by Haynes & Brown (1928) show that there was a slight increase in pU in Lane's Prince Albert and Cox's Orange Pippin apples in the first four months of storage, after which it did not change very much. II (c).…”

Section: [B) Pr Of the Pulpmentioning

confidence: 88%

A Study of the Respiration of Bananas

Gane

1936

New Phytologist

View full text Add to dashboard Cite

Section: [B) Pr Of the Pulpmentioning

confidence: 88%

A Study of the Respiration of Bananas

Gane

1936

New Phytologist

View full text Add to dashboard Cite

“…HEMPEL (20) and LEUTHARDT (32) have shown the quantitative relation between the initial reaction of a plant juice and the amount of free acid which is present, the percentage at any given reaction depending on the nature of the constituent acids. HAYNES and BROWN (19) apply this relation in estimating the salt content of apples from the titration and pH values of their juice.…”

Section: Plant Physiologymentioning

confidence: 99%

Titration Curves of Etiolated and of Green Wheat Seedlings Reproduced With Buffer Mixtures

Hurd-Karrer¹

1930

Plant Physiol.

View full text Add to dashboard Cite

The influence of foodstuffs on the rate of urinary acid excretion

Brunton¹

1933

The Journal of Physiology

View full text Add to dashboard Cite

BRUNTON and ISRAELS [1930] noted that a rise of alveolar CO2 after mixed meals, first described by Dodds [1921], occurs more regularly than any such rise of alveolar CO2 after stimulation of gastric secretion by such agents as histamine or caffeine. They described experiments with these bases in which the (minimum) volumes of gastric secretion and the associated changes in the secretion of acid by the kidney were measured but in which no rise of alveolar C02 occurred. Dodds's subjects had usually taken mixed meals [Dodds, 1921;Dodds and Bennett, 1921;Bennett and Dodds, 1921;Dodds, 1923]. Moreover, in the various contributions to the solution of the question whether there is an " alkaline tide" after meals, too little attention has been paid to the composition of the meals, and it seemed possible that the conflicting results reported might be due to differences in the nature of the food taken by the subjects of the experiments. In any case it was desirable that information should be obtained as to the effects which specified articles of diet might have. Experiments are reported here as to the effect of various articles of diet upon the acidity of the urine and as controls for comparison other experiments in which nothing was taken, or merely water.Various methods have been used for studying the effect of meals on the acidity of the urine. The method adopted here involves a principle recognized by Do d ds, namely that the amount of urine passed in unit time should be combined with the titration equivalent of unit volume of the urine, and that the amount of titratable acid in the urine excreted in unit time so obtained is more significant than the amount in unit volume of urine. In the experiments to be described this principle is adhered to and the results are presented as curves showing the amount of titratable acid in the urine passed per minute. This may, for convenience, be referred to as "acid per minute," and the more usually estimated PH. LXXVIII. 5

show abstract

A method for the estimation of the salt content from the pH value of apple juice, and some comparative analyses of the mineral content of the juice and whole apple

Cited by 3 publications

References 2 publications

A Study of the Respiration of Bananas

A Study of the Respiration of Bananas

Titration Curves of Etiolated and of Green Wheat Seedlings Reproduced With Buffer Mixtures

The influence of foodstuffs on the rate of urinary acid excretion

Contact Info

Product

Resources

About