ANALYSIS OF THE AMOUNT OF SEDIMENT IN POMEGRANATE JUICE

ABSTRACT

This article aims to analyze the amount of sediment in pomegranate juice and improve the quality of today's fruit juice. The article consists of separating the sediment from the juice or extract by centrifuging the juice or extract by preheating it in a water bath and determining the sediment mass of the sediment according to the fruit and vegetable products.

АННОТАЦИЯ

Эта статья направлена на анализ количества осадка в гранатовом соке и улучшение качества современного фруктового сока. Статья состоит в отделении осадка от сока или экстракта путем центрифугирования сока или экстракта путем предварительного нагревания его на водяной бане и определения массы осадка по плодоовощной продукции.

Keywords: Pomegranate fruit, pomegranate juice, sediment content, centrifuge tube, pipette, water bath, filter paper, analytical balance, test tubes.

Ключевые слова: плоды граната, гранатовый сок, содержание осадка, центрифужная пробирка, пипетка, водяная баня, фильтровальная бумага, аналитические весы, пробирки.

 Pomegranate is one of the fruits that were known to mankind thousands of years ago and were consumed for medicinal purposes. At present, pomegranate fruit is grown in different regions of the Republic and pomegranate juice is produced again. In order to develop the pomegranate industry, to open branches of the pomegranate Association in all regions of the Republic, to organize specialized farms and to assist representatives of the private sector engaged in this activity, production of pomegranate fruit and juice was launched at agrofirms of Fergana pomegranate and Mindonabad agro-industry and farmer farms in Fergana region. Now active involvement of foreign investments, foreign specialists and consultants in pomegranate cultivation processes, study of their experience and wide introduction of advanced technologies into the sphere are being established. In the experiment, the pomegranate consists in separating the juice or extract from the sediment by centrifugation with preheating it in a water bath and determining the sediment deposition mass according to GOST 8756.9-78 fruit and vegetable products.

A method for the determination of sedimentary rocks in fruit and berry juices and extracts

Thoroughly mix the prepared juice or extract sample, pipette 25 cm3 into each of the four centrifuge tubes, then place the test tubes in a water bath with the juice, heat to 85 to 90 ° C and keep at this temperature for 3 min. The tubes with the juice are centrifuged and centrifuged at 8000 rpm for 20 minutes. The tubes are then removed, carefully drained into a centrifuge, and the tubes are placed upside down on filter paper to drain the remaining liquid. After 10 minutes, traces of liquid remaining on the walls of the test tube are carefully removed with strips of filter paper without shaking the sediment. The precipitated test tubes are weighed on an analytical balance. When using centrifuge tubes with a capacity of 10 cm3, sediment is obtained in two stages: first, 10 cm3 of test product is placed in each tube and weighed. The tubes are heated, centrifuged, carefully drained and weighed. Another 10 cm3 of the test product is added to the same test tubes and weighed again.

After heating, hold the tubes upside down on filter paper for 10 minutes to drain the liquid from the centrifuged sample, remove any liquid residue from the walls, and pull the tubes together with the remaining sediment. All weighing is done with an error of no more than 0.0001 g. The mass fraction of sediment is calculated as a percentage, according to the following formula,  

Here

m0 is the mass of the empty test tube, g;

M1 is the mass of the test tube with sediment, g;

m2 is the mass of the product, g.

The result is an error of up to 0.01%.

The arithmetic mean of the four parallel determinations is taken as the final result, with a difference of no more than 10%. If the difference between any two parallel determinations exceeds 10%, all tests are repeated and the final result is the arithmetic mean of the eight determinations.

Table 1.

Calculation of the norm of time for instrumental indicators of the quality of pomegranate juice "determination of sedimentary rocks"

Conclusion

In summary, the physicochemical parameters of the range of pomegranate juice and concentrate were analyzed at the level of international standards and requirements. Technological factors that may affect the quality of pomegranate juice have been studied. Research has been conducted to determine, evaluate and improve the quality of pomegranate juice. In the experiment, the amount of sediment and extract of pomegranate juice was preheated in a water bath by centrifugation to separate the sediment from the juice or extract, and the sediment mass was determined according to the fruit and vegetable products and the desired results were obtained.

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