OBTAINING AND STANDARDIZATION OF CONDENSED JUICE FROM CRANBERRIES MARSH FRUITS
Introduction. Cranberries marsh fruits is a valuable raw material for the development of phyto preparations, which are used in the treatment of urinary tract infections (UTI), colds and dental diseases. Biologically active substances (BAS) contained in this raw material and can exhibit antimicrobial properties to the major uropathogenic strains of microorganisms. Obtaining condensed juice from Cranberries marsh fruits is promising, when developing solid dosage forms for use in urology.
The aim of the study – to develop a technology obtaining and standardize condensed juice from Cranberries marsh fruits.
Research Methods. Freshly prepared and concentrated juice from Cranberries marsh fruits was analyzed by the following parameters: description, pH, dry residue (fresh juice), identification and quantitative determination of the main groups of biologically active substances.
Results and Discussion. The optimum technology of reception of condensed juice from Cranberries marsh fruits was developed during conducted researches. The basic quality indicators are determined for the fresh condensed juice.
Conclusions. The optimum method for obtaining fresh juice from Cranberries marsh fruits is substantiated. Its quality criteria are defined: appearance, pH from 2.46 to 2.5, identification by Liquid chromatography-mass spectometry, color reactions and quantitative determination by titrimetry and ultraviolet spectrophotometry: organic acids – not less than 0.78 %, polyphenols – not less than 1.8 %, tannins – not less than 0.39 %, proanthocyanidine – not less than 0.33 %. In obtaining concentrated juice from Cranberries marsh fruits, it is found that the optimal method of thickening is infra-red drying at 35–40 ° С up to 30 % of the initial mass. The main indicators of quality of condensed juice from Cranberries marsh fruits are determined as description, pH 2.46 to 2.5 and quantitative content of organic acids – not less than 2.37 %, polyphenols – not less than 5.37 %, tannins – not less than 1.06 %, proanthocyanidines – not less than 0.95 %. The technological scheme of obtaining condensed juice from Cranberries marsh fruits was developed.
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