TANNINS FROM DIFFERENT FOODSTUFFS AS TRYPSIN INHIBITORS.

The trypsin inhibitory effect of phenolic extracts from different plant foodstuffs: two bean varieties, black and green tea and quince fruits as well as of standard phenolic compounds: (+)catechin, (-)epicatechin, gallic acid and tannic acid, was investigated. Monomeric tannin precursors exhibited 1000-times lower activity in the trypsin inhibition than high-molecular tannic acid. All of the plant phenolic extracts used in the experiments showed high level of the trypsin inhibition except for white bean one. Black tea polyphenols exhibited the highest inhibitory potency. The salting out of high molecular polyphenols reduced trypsin inhibiting effect of the examined extracts by 14-68%.

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SEEDS OF SELECTED FRUITS AS A GOOD SOURCE OF FLAVAN-3-OLS

ANTIOXIDANT ACTIVITY OF EXTRACT OF PEA AND ITS FRACTIONS OF LOW MOLECULAR PHENOLICS AND TANNINS

APPLICATION OF PANCREATIC ENZYMES IN HYDROLYSIS OF EGG-WHITE PROTEINS

CHROMATOGRAPHIC SEPARATION OF TANNIN FRACTIONS FROM A BEARBERRY-LEAF (ARCTOSTAPHYLOS UVA-URSI L. SPRENGEL) EXTRACT BY SE-HPLC – A SHORT REPORT

EXTRACTION AND CHROMATOGRAPHIC SEPARATION OF TANNIN FRACTIONS FROM TANNIN-RICH PLANT MATERIAL

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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.