Investigations into the organic acid metabolism ofTamarindus indica Linn.
The titratable acidity andpH of leap sap ofTamarindus indica Linn. have been determined under various conditions. The T.A.N.’s of leaves of different ages have been determined and they show an increase with increasing age until in the oldest leaves again there is a slight fall. The T.A.N. values of different age groups have been determined at various hours during the day and it has been found that there is no diurnal fluctuation in acidity in any of the groups. The T.A.N. of leaves of Group I has been determined in the various months of the year. The titratable acidity is highest in the winter months and lowest in summer months. ThepH shows a decrease with increasing age until in the oldest leaves again it increases with age. The buffering capacity of the leaf sap is of a high order.
KeywordsTitratable Acidity Crassulacean Acid Metabolism Diurnal Fluctuation Citrus Peel Thymol Blue
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