APPLICABILITY OF THE GAB EQUATION IN THE DESCRIPTION OF ADSORPTIVITY OF FREEZE-DRIED BRUSSELS SPROUTS.

The aim of this study was to investigate the applicability of the GAB equation in the description of sorption properties of freeze-dried Brussels sprout at the temperature rancing from 0 to 40^oC. The values of constants C and K as well as the values of mean relative deviation P show that the GAB equation well describes the adsorptivity of freeze-dried Brussels sprout in the whole range of water activity. Isotherms are the closest to type II according to the BET classification. The calculated capacity of a monolayer ranged from 7.3 to 8.1 g H₂O/100g d.m. The effect of temperature on moisture content was observed only at the water activity ranging from 0 to 0.2 and 0.75 to 0.98. In these intervals, lower equilibrium moisture contents corresponded to higher temperatures. Low positive values of pure isosteric heat of sorption in the range of high moisture contents show an exothermic interaction of water with a matrix.

Submit your paper

News

Instructions for Authors

Archive

Send by email

COMPARING THE SORPTIVE PROPERTIES OF SELECTED BRANDS OF INSTANT COFFEE – A SHORT REPORT

EFFECT OF THE MATERIAL FORM, STORAGE AND COOKING METHODS ON THE QULAITY OF BRUSSELS SPROUTS

Indexes

Keywords index

Topics index

Authors index

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.