COMPARISON OF GLYCEMIC RESPONSES TO FROZEN AND NON-FROZEN WHEAT ROLLS IN HUMAN VOLUNTEERS - A SHORT REPORT

Glycemic responses to frozen and non-frozen wheat rolls were studied in humans. The subjects were served each four test wheat rolls (fully baked-non frozen – FBNF; fully baked and frozen – FBF; partly baked and frozen – PBF; and unfermented frozen dough, before proofing and baking – UFD). Blood glucose concentrations were measured at 0 min as well as at 15, 30, 45, 60, 90 and 120 min after the start of the meal. Generally, the frozen storage treatment resulted in lower GI values. In one case the difference reached statistical significance (p<0.05). Namely, compared to FBNF rolls (GI=83.03±5), the PBF rolls gave significantly (p<0.05) lower values of GI (GI=60.66±6). We suggest that gelatinized starch formed in frozen rolls retrograded during the cooling process into resistant starch (RS), thus resulting in lower GI values of frozen storage rolls.

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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.