THE EFFECT OF HYDROCOLLOIDS ON PERCEPTION OF BITTERNESS AND ASTRINGENCY IN MODEL SYSTEM

The influence of food gums (guar, xanthan, arabic) and carboxymethylcellulose (CMC) on bitterness and astringency of caffeine and tannic acid has been studied. The study was performed in critical concentrations (c*) for particular hydrocolloids as well as for values above and below c*. The ability of hydrocolloids to reduce the astringency and bitterness was evaluated using the method of taste indicator and expressed as a percentage of unreduced sensation. The results indicated that the ability of hydrocolloids to mask the astringency and bitterness was differential and depended both on the concentration and the type of the hydrocolloids used. CMC indicated the highest ability to mask bitterness and astringency among the hydrocolloids. It was found that the ability of these polymers to reduce the astringency was increasing above the c* concentrations.

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eISSN:	2083-6007
ISSN:	1230-0322

W latach 2022-2024 kwartalnik naukowy Polish Journal of Food and Nutrition Sciences realizuje projekt nr RCN/SP/0520/2021/1 finansowany ze środków budżetu państwa – Ministerstwo Edukacji i Nauki w ramach programu „Rozwój czasopism naukowych”. Dofinansowanie wynosi 120 000 zł. W ramach projektu podejmowane są działania zmierzające do podniesienia poziomu praktyk wydawniczych i edytorskich, zwiększenia wpływu czasopism na rozwój nauki oraz utrzymania się czasopism w międzynarodowym obiegu naukowym.

In the years 2022-2024, the scientific quarterly Polish Journal of Food and Nutrition Sciences accomplishes a project no. RCN/SP/0520/2021/1 financed from the state budged – Ministry of Education and Science Republic of Poland in the framework of a program “Development of scientific journals”. The financing amounts to 120,000 PLN. The program aims at improving the level of publishing and editing practices, increasing the impact of scientific journals on science development, and extending the international range of scientific journals.